vim: src/sha256.c annotate

annotate src/sha256.c @ 4906:c8f3c963f8fc

Added tag v7-3-1198 for changeset 517fa1a34c7c

author	Bram Moolenaar <bram@vim.org>
date	Sat, 15 Jun 2013 16:47:36 +0200
parents	2b340e5c5baa
children	0b6c37dd858d

rev	line source
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	1 /* vi:set ts=8 sts=4 sw=4:
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	2 *
2184 5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	4 *
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	7 * See README.txt for an overview of the Vim source code.
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	8 *
2184 5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	9 * FIPS-180-2 compliant SHA-256 implementation
3935 ee138f29259e updated for version 7.3.723 Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	10 * GPL by Christophe Devine, applies to older version.
2184 5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	11 * Modified for md5deep, in public domain.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	12 * Modified For Vim, Mohsin Ahmed, http://www.cs.albany.edu/~mosh
3935 ee138f29259e updated for version 7.3.723 Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	13 * Mohsin Ahmed states this work is distributed under the VIM License or GPL,
ee138f29259e updated for version 7.3.723 Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	14 * at your choice.
2184 5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	15 *
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	16 * Vim specific notes:
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	17 * Functions exported by this file:
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	18 * 1. sha256_key() hashes the password to 64 bytes char string.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	19 * 2. sha2_seed() generates a random header.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	20 * sha256_self_test() is implicitly called once.
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	21 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	22
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	23 #include "vim.h"
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	24
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	25 #if defined(FEAT_CRYPT) \|\| defined(FEAT_PERSISTENT_UNDO)
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	26
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	27 static void sha256_process __ARGS((context_sha256_T *ctx, char_u data[64]));
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	28
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	29 #define GET_UINT32(n, b, i) \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	30 { \
2199 014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	31 (n) = ( (UINT32_T)(b)[(i) ] << 24) \
014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	32 \| ( (UINT32_T)(b)[(i) + 1] << 16) \
014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	33 \| ( (UINT32_T)(b)[(i) + 2] << 8) \
014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	34 \| ( (UINT32_T)(b)[(i) + 3] ); \
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	35 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	36
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	37 #define PUT_UINT32(n,b,i) \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	38 { \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	39 (b)[(i) ] = (char_u)((n) >> 24); \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	40 (b)[(i) + 1] = (char_u)((n) >> 16); \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	41 (b)[(i) + 2] = (char_u)((n) >> 8); \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	42 (b)[(i) + 3] = (char_u)((n) ); \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	43 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	44
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	45 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	46 sha256_start(ctx)
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	47 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	48 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	49 ctx->total[0] = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	50 ctx->total[1] = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	51
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	52 ctx->state[0] = 0x6A09E667;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	53 ctx->state[1] = 0xBB67AE85;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	54 ctx->state[2] = 0x3C6EF372;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	55 ctx->state[3] = 0xA54FF53A;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	56 ctx->state[4] = 0x510E527F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	57 ctx->state[5] = 0x9B05688C;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	58 ctx->state[6] = 0x1F83D9AB;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	59 ctx->state[7] = 0x5BE0CD19;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	60 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	61
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	62 static void
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	63 sha256_process(ctx, data)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	64 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	65 char_u data[64];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	66 {
2199 014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	67 UINT32_T temp1, temp2, W[64];
014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	68 UINT32_T A, B, C, D, E, F, G, H;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	69
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	70 GET_UINT32(W[0], data, 0);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	71 GET_UINT32(W[1], data, 4);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	72 GET_UINT32(W[2], data, 8);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	73 GET_UINT32(W[3], data, 12);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	74 GET_UINT32(W[4], data, 16);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	75 GET_UINT32(W[5], data, 20);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	76 GET_UINT32(W[6], data, 24);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	77 GET_UINT32(W[7], data, 28);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	78 GET_UINT32(W[8], data, 32);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	79 GET_UINT32(W[9], data, 36);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	80 GET_UINT32(W[10], data, 40);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	81 GET_UINT32(W[11], data, 44);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	82 GET_UINT32(W[12], data, 48);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	83 GET_UINT32(W[13], data, 52);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	84 GET_UINT32(W[14], data, 56);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	85 GET_UINT32(W[15], data, 60);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	86
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	87 #define SHR(x, n) ((x & 0xFFFFFFFF) >> n)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	88 #define ROTR(x, n) (SHR(x, n) \| (x << (32 - n)))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	89
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	90 #define S0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	91 #define S1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	92
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	93 #define S2(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	94 #define S3(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	95
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	96 #define F0(x, y, z) ((x & y) \| (z & (x \| y)))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	97 #define F1(x, y, z) (z ^ (x & (y ^ z)))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	98
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	99 #define R(t) \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	100 ( \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	101 W[t] = S1(W[t - 2]) + W[t - 7] + \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	102 S0(W[t - 15]) + W[t - 16] \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	103 )
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	104
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	105 #define P(a,b,c,d,e,f,g,h,x,K) \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	106 { \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	107 temp1 = h + S3(e) + F1(e, f, g) + K + x; \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	108 temp2 = S2(a) + F0(a, b, c); \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	109 d += temp1; h = temp1 + temp2; \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	110 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	111
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	112 A = ctx->state[0];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	113 B = ctx->state[1];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	114 C = ctx->state[2];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	115 D = ctx->state[3];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	116 E = ctx->state[4];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	117 F = ctx->state[5];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	118 G = ctx->state[6];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	119 H = ctx->state[7];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	120
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	121 P( A, B, C, D, E, F, G, H, W[ 0], 0x428A2F98);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	122 P( H, A, B, C, D, E, F, G, W[ 1], 0x71374491);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	123 P( G, H, A, B, C, D, E, F, W[ 2], 0xB5C0FBCF);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	124 P( F, G, H, A, B, C, D, E, W[ 3], 0xE9B5DBA5);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	125 P( E, F, G, H, A, B, C, D, W[ 4], 0x3956C25B);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	126 P( D, E, F, G, H, A, B, C, W[ 5], 0x59F111F1);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	127 P( C, D, E, F, G, H, A, B, W[ 6], 0x923F82A4);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	128 P( B, C, D, E, F, G, H, A, W[ 7], 0xAB1C5ED5);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	129 P( A, B, C, D, E, F, G, H, W[ 8], 0xD807AA98);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	130 P( H, A, B, C, D, E, F, G, W[ 9], 0x12835B01);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	131 P( G, H, A, B, C, D, E, F, W[10], 0x243185BE);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	132 P( F, G, H, A, B, C, D, E, W[11], 0x550C7DC3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	133 P( E, F, G, H, A, B, C, D, W[12], 0x72BE5D74);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	134 P( D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	135 P( C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	136 P( B, C, D, E, F, G, H, A, W[15], 0xC19BF174);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	137 P( A, B, C, D, E, F, G, H, R(16), 0xE49B69C1);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	138 P( H, A, B, C, D, E, F, G, R(17), 0xEFBE4786);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	139 P( G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	140 P( F, G, H, A, B, C, D, E, R(19), 0x240CA1CC);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	141 P( E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	142 P( D, E, F, G, H, A, B, C, R(21), 0x4A7484AA);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	143 P( C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	144 P( B, C, D, E, F, G, H, A, R(23), 0x76F988DA);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	145 P( A, B, C, D, E, F, G, H, R(24), 0x983E5152);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	146 P( H, A, B, C, D, E, F, G, R(25), 0xA831C66D);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	147 P( G, H, A, B, C, D, E, F, R(26), 0xB00327C8);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	148 P( F, G, H, A, B, C, D, E, R(27), 0xBF597FC7);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	149 P( E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	150 P( D, E, F, G, H, A, B, C, R(29), 0xD5A79147);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	151 P( C, D, E, F, G, H, A, B, R(30), 0x06CA6351);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	152 P( B, C, D, E, F, G, H, A, R(31), 0x14292967);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	153 P( A, B, C, D, E, F, G, H, R(32), 0x27B70A85);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	154 P( H, A, B, C, D, E, F, G, R(33), 0x2E1B2138);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	155 P( G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	156 P( F, G, H, A, B, C, D, E, R(35), 0x53380D13);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	157 P( E, F, G, H, A, B, C, D, R(36), 0x650A7354);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	158 P( D, E, F, G, H, A, B, C, R(37), 0x766A0ABB);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	159 P( C, D, E, F, G, H, A, B, R(38), 0x81C2C92E);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	160 P( B, C, D, E, F, G, H, A, R(39), 0x92722C85);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	161 P( A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	162 P( H, A, B, C, D, E, F, G, R(41), 0xA81A664B);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	163 P( G, H, A, B, C, D, E, F, R(42), 0xC24B8B70);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	164 P( F, G, H, A, B, C, D, E, R(43), 0xC76C51A3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	165 P( E, F, G, H, A, B, C, D, R(44), 0xD192E819);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	166 P( D, E, F, G, H, A, B, C, R(45), 0xD6990624);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	167 P( C, D, E, F, G, H, A, B, R(46), 0xF40E3585);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	168 P( B, C, D, E, F, G, H, A, R(47), 0x106AA070);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	169 P( A, B, C, D, E, F, G, H, R(48), 0x19A4C116);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	170 P( H, A, B, C, D, E, F, G, R(49), 0x1E376C08);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	171 P( G, H, A, B, C, D, E, F, R(50), 0x2748774C);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	172 P( F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	173 P( E, F, G, H, A, B, C, D, R(52), 0x391C0CB3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	174 P( D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	175 P( C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	176 P( B, C, D, E, F, G, H, A, R(55), 0x682E6FF3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	177 P( A, B, C, D, E, F, G, H, R(56), 0x748F82EE);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	178 P( H, A, B, C, D, E, F, G, R(57), 0x78A5636F);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	179 P( G, H, A, B, C, D, E, F, R(58), 0x84C87814);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	180 P( F, G, H, A, B, C, D, E, R(59), 0x8CC70208);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	181 P( E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	182 P( D, E, F, G, H, A, B, C, R(61), 0xA4506CEB);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	183 P( C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	184 P( B, C, D, E, F, G, H, A, R(63), 0xC67178F2);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	185
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	186 ctx->state[0] += A;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	187 ctx->state[1] += B;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	188 ctx->state[2] += C;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	189 ctx->state[3] += D;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	190 ctx->state[4] += E;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	191 ctx->state[5] += F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	192 ctx->state[6] += G;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	193 ctx->state[7] += H;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	194 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	195
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	196 void
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	197 sha256_update(ctx, input, length)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	198 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	199 char_u *input;
2199 014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	200 UINT32_T length;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	201 {
2199 014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	202 UINT32_T left, fill;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	203
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	204 if (length == 0)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	205 return;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	206
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	207 left = ctx->total[0] & 0x3F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	208 fill = 64 - left;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	209
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	210 ctx->total[0] += length;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	211 ctx->total[0] &= 0xFFFFFFFF;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	212
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	213 if (ctx->total[0] < length)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	214 ctx->total[1]++;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	215
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	216 if (left && length >= fill)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	217 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	218 memcpy((void )(ctx->buffer + left), (void )input, fill);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	219 sha256_process(ctx, ctx->buffer);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	220 length -= fill;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	221 input += fill;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	222 left = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	223 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	224
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	225 while (length >= 64)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	226 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	227 sha256_process(ctx, input);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	228 length -= 64;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	229 input += 64;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	230 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	231
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	232 if (length)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	233 memcpy((void )(ctx->buffer + left), (void )input, length);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	234 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	235
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	236 static char_u sha256_padding[64] = {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	237 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	238 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	239 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	240 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	241 };
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	242
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	243 void
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	244 sha256_finish(ctx, digest)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	245 context_sha256_T *ctx;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	246 char_u digest[32];
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	247 {
2199 014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	248 UINT32_T last, padn;
014a996ac896 Use UINT32_T in the code, define it to uint32_t or unsigned int. Bram Moolenaar <bram@vim.org> parents: 2184 diff changeset	249 UINT32_T high, low;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	250 char_u msglen[8];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	251
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	252 high = (ctx->total[0] >> 29) \| (ctx->total[1] << 3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	253 low = (ctx->total[0] << 3);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	254
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	255 PUT_UINT32(high, msglen, 0);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	256 PUT_UINT32(low, msglen, 4);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	257
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	258 last = ctx->total[0] & 0x3F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	259 padn = (last < 56) ? (56 - last) : (120 - last);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	260
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	261 sha256_update(ctx, sha256_padding, padn);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	262 sha256_update(ctx, msglen, 8);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	263
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	264 PUT_UINT32(ctx->state[0], digest, 0);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	265 PUT_UINT32(ctx->state[1], digest, 4);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	266 PUT_UINT32(ctx->state[2], digest, 8);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	267 PUT_UINT32(ctx->state[3], digest, 12);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	268 PUT_UINT32(ctx->state[4], digest, 16);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	269 PUT_UINT32(ctx->state[5], digest, 20);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	270 PUT_UINT32(ctx->state[6], digest, 24);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	271 PUT_UINT32(ctx->state[7], digest, 28);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	272 }
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	273 #endif /* FEAT_CRYPT \|\| FEAT_PERSISTENT_UNDO */
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	274
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	275 #if defined(FEAT_CRYPT) \|\| defined(PROTO)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	276 static unsigned int get_some_time __ARGS((void));
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	277
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	278 /*
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	279 * Returns hex digest of "buf[buf_len]" in a static array.
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	280 * if "salt" is not NULL also do "salt[salt_len]".
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	281 */
4126 2b340e5c5baa updated for version 7.3.816 Bram Moolenaar <bram@vim.org> parents: 3935 diff changeset	282 char_u *
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	283 sha256_bytes(buf, buf_len, salt, salt_len)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	284 char_u *buf;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	285 int buf_len;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	286 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	287 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	288 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	289 char_u sha256sum[32];
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	290 static char_u hexit[65];
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	291 int j;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	292 context_sha256_T ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	293
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	294 sha256_self_test();
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	295
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	296 sha256_start(&ctx);
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	297 sha256_update(&ctx, buf, buf_len);
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	298 if (salt != NULL)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	299 sha256_update(&ctx, salt, salt_len);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	300 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	301 for (j = 0; j < 32; j++)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	302 sprintf((char )hexit + j 2, "%02x", sha256sum[j]);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	303 hexit[sizeof(hexit) - 1] = '\0';
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	304 return hexit;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	305 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	306
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	307 /*
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	308 * Returns sha256(buf) as 64 hex chars in static array.
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	309 */
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	310 char_u *
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	311 sha256_key(buf, salt, salt_len)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	312 char_u *buf;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	313 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	314 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	315 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	316 /* No passwd means don't encrypt */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	317 if (buf == NULL \|\| *buf == NUL)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	318 return (char_u *)"";
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	319
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	320 return sha256_bytes(buf, (int)STRLEN(buf), salt, salt_len);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	321 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	322
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	323 /*
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	324 * These are the standard FIPS-180-2 test vectors
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	325 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	326
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	327 static char *sha_self_test_msg[] = {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	328 "abc",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	329 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	330 NULL
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	331 };
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	332
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	333 static char *sha_self_test_vector[] = {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	334 "ba7816bf8f01cfea414140de5dae2223" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	335 "b00361a396177a9cb410ff61f20015ad",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	336 "248d6a61d20638b8e5c026930c3e6039" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	337 "a33ce45964ff2167f6ecedd419db06c1",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	338 "cdc76e5c9914fb9281a1c7e284d73e67" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	339 "f1809a48a497200e046d39ccc7112cd0"
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	340 };
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	341
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	342 /*
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	343 * Perform a test on the SHA256 algorithm.
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	344 * Return FAIL or OK.
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	345 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	346 int
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	347 sha256_self_test()
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	348 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	349 int i, j;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	350 char output[65];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	351 context_sha256_T ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	352 char_u buf[1000];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	353 char_u sha256sum[32];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	354 static int failures = 0;
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	355 char_u *hexit;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	356 static int sha256_self_tested = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	357
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	358 if (sha256_self_tested > 0)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	359 return failures > 0 ? FAIL : OK;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	360 sha256_self_tested = 1;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	361
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	362 for (i = 0; i < 3; i++)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	363 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	364 if (i < 2)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	365 {
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	366 hexit = sha256_bytes((char_u *)sha_self_test_msg[i],
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	367 (int)STRLEN(sha_self_test_msg[i]),
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	368 NULL, 0);
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	369 STRCPY(output, hexit);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	370 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	371 else
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	372 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	373 sha256_start(&ctx);
2215 cccb71c2c5c1 Fix uninit memory read in undo code. Fix uint32_t in proto file. Bram Moolenaar <bram@vim.org> parents: 2214 diff changeset	374 vim_memset(buf, 'a', 1000);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	375 for (j = 0; j < 1000; j++)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	376 sha256_update(&ctx, (char_u *)buf, 1000);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	377 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	378 for (j = 0; j < 32; j++)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	379 sprintf(output + j * 2, "%02x", sha256sum[j]);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	380 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	381 if (memcmp(output, sha_self_test_vector[i], 64))
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	382 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	383 failures++;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	384 output[sizeof(output) - 1] = '\0';
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	385 /* printf("sha256_self_test %d failed %s\n", i, output); */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	386 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	387 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	388 return failures > 0 ? FAIL : OK;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	389 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	390
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	391 static unsigned int
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	392 get_some_time()
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	393 {
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	394 # ifdef HAVE_GETTIMEOFDAY
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	395 struct timeval tv;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	396
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	397 /* Using usec makes it less predictable. */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	398 gettimeofday(&tv, NULL);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	399 return (unsigned int)(tv.tv_sec + tv.tv_usec);
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	400 # else
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	401 return (unsigned int)time(NULL);
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	402 # endif
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	403 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	404
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	405 /*
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	406 * Fill "header[header_len]" with random_data.
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	407 * Also "salt[salt_len]" when "salt" is not NULL.
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	408 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	409 void
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	410 sha2_seed(header, header_len, salt, salt_len)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	411 char_u *header;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	412 int header_len;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	413 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	414 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	415 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	416 int i;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	417 static char_u random_data[1000];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	418 char_u sha256sum[32];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	419 context_sha256_T ctx;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	420
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	421 srand(get_some_time());
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	422
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	423 for (i = 0; i < (int)sizeof(random_data) - 1; i++)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	424 random_data[i] = (char_u)((get_some_time() ^ rand()) & 0xff);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	425 sha256_start(&ctx);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	426 sha256_update(&ctx, (char_u *)random_data, sizeof(random_data));
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	427 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	428
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	429 /* put first block into header. */
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	430 for (i = 0; i < header_len; i++)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	431 header[i] = sha256sum[i % sizeof(sha256sum)];
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	432
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	433 /* put remaining block into salt. */
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	434 if (salt != NULL)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	435 for (i = 0; i < salt_len; i++)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	436 salt[i] = sha256sum[(i + header_len) % sizeof(sha256sum)];
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	437 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	438
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	439 #endif /* FEAT_CRYPT */

Mercurial > vim

annotate src/sha256.c @ 4906:c8f3c963f8fc