vim: src/sha256.c annotate

annotate src/sha256.c @ 2267:c08f91142c41 vim73

Crypt the swapfile.

author	Bram Moolenaar <bram@vim.org>
date	Mon, 21 Jun 2010 06:15:46 +0200
parents	b7cb69ab616d
children	ccda151dde4e

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
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	10 * GPL by Christophe Devine.
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
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	13 *
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	14 * Vim specific notes:
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	15 * Functions exported by this file:
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	16 * 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	17 * 2. sha2_seed() generates a random header.
5028c4d6d825 Fixed encryption big/little endian test. Bram Moolenaar <bram@vim.org> parents: 2182 diff changeset	18 * 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	19 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	20
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	21 #include "vim.h"
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	22
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	23 #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	24
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	25 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	26
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	27 #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	28 { \
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	29 (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	30 \| ( (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	31 \| ( (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	32 \| ( (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	33 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	34
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	35 #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	36 { \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	37 (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	38 (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	39 (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	40 (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	41 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	42
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	43 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	44 sha256_start(ctx)
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	45 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	46 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	47 ctx->total[0] = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	48 ctx->total[1] = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	49
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	50 ctx->state[0] = 0x6A09E667;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	51 ctx->state[1] = 0xBB67AE85;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	52 ctx->state[2] = 0x3C6EF372;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	53 ctx->state[3] = 0xA54FF53A;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	54 ctx->state[4] = 0x510E527F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	55 ctx->state[5] = 0x9B05688C;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	56 ctx->state[6] = 0x1F83D9AB;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	57 ctx->state[7] = 0x5BE0CD19;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	58 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	59
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	60 static void
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	61 sha256_process(ctx, data)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	62 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	63 char_u data[64];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	64 {
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	65 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	66 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	67
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	68 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	69 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	70 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	71 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	72 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	73 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	74 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	75 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	76 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	77 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	78 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	79 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	80 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	81 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	82 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	83 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	84
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	85 #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	86 #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	87
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	88 #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	89 #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	90
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	91 #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	92 #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	93
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	94 #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	95 #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	96
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	97 #define R(t) \
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 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	100 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	101 )
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	102
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	103 #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	104 { \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	105 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	106 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	107 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	108 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	109
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	110 A = ctx->state[0];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	111 B = ctx->state[1];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	112 C = ctx->state[2];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	113 D = ctx->state[3];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	114 E = ctx->state[4];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	115 F = ctx->state[5];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	116 G = ctx->state[6];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	117 H = ctx->state[7];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	118
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	119 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	120 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	121 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	122 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	123 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	124 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	125 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	126 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	127 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	128 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	129 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	130 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	131 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	132 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	133 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	134 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	135 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	136 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	137 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	138 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	139 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	140 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	141 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	142 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	143 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	144 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	145 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	146 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	147 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	148 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	149 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	150 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	151 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	152 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	153 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	154 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	155 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	156 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	157 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	158 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	159 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	160 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	161 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	162 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	163 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	164 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	165 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	166 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	167 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	168 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	169 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	170 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	171 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	172 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	173 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	174 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	175 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	176 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	177 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	178 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	179 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	180 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	181 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	182 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	183
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	184 ctx->state[0] += A;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	185 ctx->state[1] += B;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	186 ctx->state[2] += C;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	187 ctx->state[3] += D;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	188 ctx->state[4] += E;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	189 ctx->state[5] += F;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	190 ctx->state[6] += G;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	191 ctx->state[7] += H;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	192 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	193
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	194 void
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	195 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	196 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	197 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	198 UINT32_T length;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	199 {
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 left, fill;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	201
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	202 if (length == 0)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	203 return;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	204
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	205 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	206 fill = 64 - left;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	207
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	208 ctx->total[0] += length;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	209 ctx->total[0] &= 0xFFFFFFFF;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	210
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	211 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	212 ctx->total[1]++;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	213
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	214 if (left && length >= fill)
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 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	217 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	218 length -= fill;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	219 input += fill;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	220 left = 0;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	221 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	222
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	223 while (length >= 64)
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 sha256_process(ctx, input);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	226 length -= 64;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	227 input += 64;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	228 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	229
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	230 if (length)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	231 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	232 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	233
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	234 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	235 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	236 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	237 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	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 };
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	240
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	241 void
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	242 sha256_finish(ctx, digest)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	243 context_sha256_T *ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	244 char_u digest[32];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	245 {
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	246 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	247 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	248 char_u msglen[8];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	249
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	250 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	251 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	252
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	253 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	254 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	255
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	256 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	257 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	258
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	259 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	260 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	261
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	262 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	263 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	264 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	265 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	266 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	267 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	268 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	269 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	270 }
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	271 #endif /* FEAT_CRYPT \|\| FEAT_PERSISTENT_UNDO */
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	272
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	273 #if defined(FEAT_CRYPT) \|\| defined(PROTO)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	274 static char_u sha256_bytes __ARGS((char_u buf, int buf_len, char_u *salt, int salt_len));
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	275 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	276
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	277 /*
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	278 * 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	279 * 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	280 */
3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	281 static char_u *
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	282 sha256_bytes(buf, buf_len, salt, salt_len)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	283 char_u *buf;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	284 int buf_len;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	285 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	286 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	287 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	288 char_u sha256sum[32];
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	289 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	290 int j;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	291 context_sha256_T ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	292
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	293 sha256_self_test();
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	294
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	295 sha256_start(&ctx);
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	296 sha256_update(&ctx, buf, buf_len);
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	297 if (salt != NULL)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	298 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	299 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	300 for (j = 0; j < 32; j++)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	301 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	302 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	303 return hexit;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	304 }
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 /*
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	307 * 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	308 */
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	309 char_u *
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	310 sha256_key(buf, salt, salt_len)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	311 char_u *buf;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	312 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	313 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	314 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	315 /* 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	316 if (buf == NULL \|\| *buf == NUL)
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	317 return (char_u *)"";
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	318
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	319 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	320 }
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 * 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	324 */
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 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	327 "abc",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	328 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	329 NULL
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	330 };
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 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	333 "ba7816bf8f01cfea414140de5dae2223" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	334 "b00361a396177a9cb410ff61f20015ad",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	335 "248d6a61d20638b8e5c026930c3e6039" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	336 "a33ce45964ff2167f6ecedd419db06c1",
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	337 "cdc76e5c9914fb9281a1c7e284d73e67" \
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	338 "f1809a48a497200e046d39ccc7112cd0"
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	339 };
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 * 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	343 * Return FAIL or OK.
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	344 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	345 int
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	346 sha256_self_test()
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	347 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	348 int i, j;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	349 char output[65];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	350 context_sha256_T ctx;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	351 char_u buf[1000];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	352 char_u sha256sum[32];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	353 static int failures = 0;
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	354 char_u *hexit;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	355 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	356
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	357 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	358 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	359 sha256_self_tested = 1;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	360
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	361 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	362 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	363 if (i < 2)
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	364 {
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	365 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	366 (int)STRLEN(sha_self_test_msg[i]),
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	367 NULL, 0);
2182 3cb515c62e9c Minor updates to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2180 diff changeset	368 STRCPY(output, hexit);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	369 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	370 else
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	371 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2199 diff changeset	372 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	373 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	374 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	375 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	376 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	377 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	378 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	379 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	380 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	381 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	382 failures++;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	383 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	384 /* 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	385 }
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 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	388 }
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 static unsigned int
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	391 get_some_time()
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	392 {
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	393 # ifdef HAVE_GETTIMEOFDAY
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	394 struct timeval tv;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	395
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	396 /* 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	397 gettimeofday(&tv, NULL);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	398 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	399 # else
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	400 return (unsigned int)time(NULL);
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	401 # endif
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	402 }
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 /*
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	405 * Fill "header[header_len]" with random_data.
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	406 * 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	407 */
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	408 void
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	409 sha2_seed(header, header_len, salt, salt_len)
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	410 char_u *header;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	411 int header_len;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	412 char_u *salt;
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	413 int salt_len;
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	414 {
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	415 int i;
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	416 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	417 char_u sha256sum[32];
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	418 context_sha256_T ctx;
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	419
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	420 srand(get_some_time());
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	421
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	422 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	423 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	424 sha256_start(&ctx);
2180 f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	425 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	426 sha256_finish(&ctx, sha256sum);
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	427
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	428 /* 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	429 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	430 header[i] = sha256sum[i % sizeof(sha256sum)];
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	431
b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	432 /* put remaining block into salt. */
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	433 if (salt != NULL)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	434 for (i = 0; i < salt_len; i++)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2265 diff changeset	435 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	436 }
f60a0c9cbe6c Add the blowfish encryption patch from Mohsin Ahmed. Needs more work. Bram Moolenaar <bram@vim.org> parents: diff changeset	437
2265 b7cb69ab616d Added salt to blowfish encryption. Bram Moolenaar <bram@vim.org> parents: 2217 diff changeset	438 #endif /* FEAT_CRYPT */

Mercurial > vim

annotate src/sha256.c @ 2267:c08f91142c41 vim73