diff options
Diffstat (limited to 'contrib/pgcrypto/sha1.c')
| -rw-r--r-- | contrib/pgcrypto/sha1.c | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/contrib/pgcrypto/sha1.c b/contrib/pgcrypto/sha1.c deleted file mode 100644 index 64671ac64d..0000000000 --- a/contrib/pgcrypto/sha1.c +++ /dev/null @@ -1,331 +0,0 @@ -/* $KAME: sha1.c,v 1.3 2000/02/22 14:01:18 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * contrib/pgcrypto/sha1.c - */ -/* - * FIPS pub 180-1: Secure Hash Algorithm (SHA-1) - * based on: http://www.itl.nist.gov/fipspubs/fip180-1.htm - * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org> - */ - -#include "postgres.h" - -#include <sys/param.h> - -#include "sha1.h" - -/* constant table */ -static uint32 _K[] = {0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6}; - -#define K(t) _K[(t) / 20] - -#define F0(b, c, d) (((b) & (c)) | ((~(b)) & (d))) -#define F1(b, c, d) (((b) ^ (c)) ^ (d)) -#define F2(b, c, d) (((b) & (c)) | ((b) & (d)) | ((c) & (d))) -#define F3(b, c, d) (((b) ^ (c)) ^ (d)) - -#define S(n, x) (((x) << (n)) | ((x) >> (32 - (n)))) - -#define H(n) (ctxt->h.b32[(n)]) -#define COUNT (ctxt->count) -#define BCOUNT (ctxt->c.b64[0] / 8) -#define W(n) (ctxt->m.b32[(n)]) - -#define PUTPAD(x) \ -do { \ - ctxt->m.b8[(COUNT % 64)] = (x); \ - COUNT++; \ - COUNT %= 64; \ - if (COUNT % 64 == 0) \ - sha1_step(ctxt); \ -} while (0) - -static void sha1_step(struct sha1_ctxt *); - -static void -sha1_step(struct sha1_ctxt *ctxt) -{ - uint32 a, - b, - c, - d, - e; - size_t t, - s; - uint32 tmp; - -#ifndef WORDS_BIGENDIAN - struct sha1_ctxt tctxt; - - memmove(&tctxt.m.b8[0], &ctxt->m.b8[0], 64); - ctxt->m.b8[0] = tctxt.m.b8[3]; - ctxt->m.b8[1] = tctxt.m.b8[2]; - ctxt->m.b8[2] = tctxt.m.b8[1]; - ctxt->m.b8[3] = tctxt.m.b8[0]; - ctxt->m.b8[4] = tctxt.m.b8[7]; - ctxt->m.b8[5] = tctxt.m.b8[6]; - ctxt->m.b8[6] = tctxt.m.b8[5]; - ctxt->m.b8[7] = tctxt.m.b8[4]; - ctxt->m.b8[8] = tctxt.m.b8[11]; - ctxt->m.b8[9] = tctxt.m.b8[10]; - ctxt->m.b8[10] = tctxt.m.b8[9]; - ctxt->m.b8[11] = tctxt.m.b8[8]; - ctxt->m.b8[12] = tctxt.m.b8[15]; - ctxt->m.b8[13] = tctxt.m.b8[14]; - ctxt->m.b8[14] = tctxt.m.b8[13]; - ctxt->m.b8[15] = tctxt.m.b8[12]; - ctxt->m.b8[16] = tctxt.m.b8[19]; - ctxt->m.b8[17] = tctxt.m.b8[18]; - ctxt->m.b8[18] = tctxt.m.b8[17]; - ctxt->m.b8[19] = tctxt.m.b8[16]; - ctxt->m.b8[20] = tctxt.m.b8[23]; - ctxt->m.b8[21] = tctxt.m.b8[22]; - ctxt->m.b8[22] = tctxt.m.b8[21]; - ctxt->m.b8[23] = tctxt.m.b8[20]; - ctxt->m.b8[24] = tctxt.m.b8[27]; - ctxt->m.b8[25] = tctxt.m.b8[26]; - ctxt->m.b8[26] = tctxt.m.b8[25]; - ctxt->m.b8[27] = tctxt.m.b8[24]; - ctxt->m.b8[28] = tctxt.m.b8[31]; - ctxt->m.b8[29] = tctxt.m.b8[30]; - ctxt->m.b8[30] = tctxt.m.b8[29]; - ctxt->m.b8[31] = tctxt.m.b8[28]; - ctxt->m.b8[32] = tctxt.m.b8[35]; - ctxt->m.b8[33] = tctxt.m.b8[34]; - ctxt->m.b8[34] = tctxt.m.b8[33]; - ctxt->m.b8[35] = tctxt.m.b8[32]; - ctxt->m.b8[36] = tctxt.m.b8[39]; - ctxt->m.b8[37] = tctxt.m.b8[38]; - ctxt->m.b8[38] = tctxt.m.b8[37]; - ctxt->m.b8[39] = tctxt.m.b8[36]; - ctxt->m.b8[40] = tctxt.m.b8[43]; - ctxt->m.b8[41] = tctxt.m.b8[42]; - ctxt->m.b8[42] = tctxt.m.b8[41]; - ctxt->m.b8[43] = tctxt.m.b8[40]; - ctxt->m.b8[44] = tctxt.m.b8[47]; - ctxt->m.b8[45] = tctxt.m.b8[46]; - ctxt->m.b8[46] = tctxt.m.b8[45]; - ctxt->m.b8[47] = tctxt.m.b8[44]; - ctxt->m.b8[48] = tctxt.m.b8[51]; - ctxt->m.b8[49] = tctxt.m.b8[50]; - ctxt->m.b8[50] = tctxt.m.b8[49]; - ctxt->m.b8[51] = tctxt.m.b8[48]; - ctxt->m.b8[52] = tctxt.m.b8[55]; - ctxt->m.b8[53] = tctxt.m.b8[54]; - ctxt->m.b8[54] = tctxt.m.b8[53]; - ctxt->m.b8[55] = tctxt.m.b8[52]; - ctxt->m.b8[56] = tctxt.m.b8[59]; - ctxt->m.b8[57] = tctxt.m.b8[58]; - ctxt->m.b8[58] = tctxt.m.b8[57]; - ctxt->m.b8[59] = tctxt.m.b8[56]; - ctxt->m.b8[60] = tctxt.m.b8[63]; - ctxt->m.b8[61] = tctxt.m.b8[62]; - ctxt->m.b8[62] = tctxt.m.b8[61]; - ctxt->m.b8[63] = tctxt.m.b8[60]; -#endif - - a = H(0); - b = H(1); - c = H(2); - d = H(3); - e = H(4); - - for (t = 0; t < 20; t++) - { - s = t & 0x0f; - if (t >= 16) - W(s) = S(1, W((s + 13) & 0x0f) ^ W((s + 8) & 0x0f) ^ W((s + 2) & 0x0f) ^ W(s)); - tmp = S(5, a) + F0(b, c, d) + e + W(s) + K(t); - e = d; - d = c; - c = S(30, b); - b = a; - a = tmp; - } - for (t = 20; t < 40; t++) - { - s = t & 0x0f; - W(s) = S(1, W((s + 13) & 0x0f) ^ W((s + 8) & 0x0f) ^ W((s + 2) & 0x0f) ^ W(s)); - tmp = S(5, a) + F1(b, c, d) + e + W(s) + K(t); - e = d; - d = c; - c = S(30, b); - b = a; - a = tmp; - } - for (t = 40; t < 60; t++) - { - s = t & 0x0f; - W(s) = S(1, W((s + 13) & 0x0f) ^ W((s + 8) & 0x0f) ^ W((s + 2) & 0x0f) ^ W(s)); - tmp = S(5, a) + F2(b, c, d) + e + W(s) + K(t); - e = d; - d = c; - c = S(30, b); - b = a; - a = tmp; - } - for (t = 60; t < 80; t++) - { - s = t & 0x0f; - W(s) = S(1, W((s + 13) & 0x0f) ^ W((s + 8) & 0x0f) ^ W((s + 2) & 0x0f) ^ W(s)); - tmp = S(5, a) + F3(b, c, d) + e + W(s) + K(t); - e = d; - d = c; - c = S(30, b); - b = a; - a = tmp; - } - - H(0) = H(0) + a; - H(1) = H(1) + b; - H(2) = H(2) + c; - H(3) = H(3) + d; - H(4) = H(4) + e; - - memset(&ctxt->m.b8[0], 0, 64); -} - -/*------------------------------------------------------------*/ - -void -sha1_init(struct sha1_ctxt *ctxt) -{ - memset(ctxt, 0, sizeof(struct sha1_ctxt)); - H(0) = 0x67452301; - H(1) = 0xefcdab89; - H(2) = 0x98badcfe; - H(3) = 0x10325476; - H(4) = 0xc3d2e1f0; -} - -void -sha1_pad(struct sha1_ctxt *ctxt) -{ - size_t padlen; /* pad length in bytes */ - size_t padstart; - - PUTPAD(0x80); - - padstart = COUNT % 64; - padlen = 64 - padstart; - if (padlen < 8) - { - memset(&ctxt->m.b8[padstart], 0, padlen); - COUNT += padlen; - COUNT %= 64; - sha1_step(ctxt); - padstart = COUNT % 64; /* should be 0 */ - padlen = 64 - padstart; /* should be 64 */ - } - memset(&ctxt->m.b8[padstart], 0, padlen - 8); - COUNT += (padlen - 8); - COUNT %= 64; -#ifdef WORDS_BIGENDIAN - PUTPAD(ctxt->c.b8[0]); - PUTPAD(ctxt->c.b8[1]); - PUTPAD(ctxt->c.b8[2]); - PUTPAD(ctxt->c.b8[3]); - PUTPAD(ctxt->c.b8[4]); - PUTPAD(ctxt->c.b8[5]); - PUTPAD(ctxt->c.b8[6]); - PUTPAD(ctxt->c.b8[7]); -#else - PUTPAD(ctxt->c.b8[7]); - PUTPAD(ctxt->c.b8[6]); - PUTPAD(ctxt->c.b8[5]); - PUTPAD(ctxt->c.b8[4]); - PUTPAD(ctxt->c.b8[3]); - PUTPAD(ctxt->c.b8[2]); - PUTPAD(ctxt->c.b8[1]); - PUTPAD(ctxt->c.b8[0]); -#endif -} - -void -sha1_loop(struct sha1_ctxt *ctxt, const uint8 *input0, size_t len) -{ - const uint8 *input; - size_t gaplen; - size_t gapstart; - size_t off; - size_t copysiz; - - input = (const uint8 *) input0; - off = 0; - - while (off < len) - { - gapstart = COUNT % 64; - gaplen = 64 - gapstart; - - copysiz = (gaplen < len - off) ? gaplen : len - off; - memmove(&ctxt->m.b8[gapstart], &input[off], copysiz); - COUNT += copysiz; - COUNT %= 64; - ctxt->c.b64[0] += copysiz * 8; - if (COUNT % 64 == 0) - sha1_step(ctxt); - off += copysiz; - } -} - -void -sha1_result(struct sha1_ctxt *ctxt, uint8 *digest0) -{ - uint8 *digest; - - digest = (uint8 *) digest0; - sha1_pad(ctxt); -#ifdef WORDS_BIGENDIAN - memmove(digest, &ctxt->h.b8[0], 20); -#else - digest[0] = ctxt->h.b8[3]; - digest[1] = ctxt->h.b8[2]; - digest[2] = ctxt->h.b8[1]; - digest[3] = ctxt->h.b8[0]; - digest[4] = ctxt->h.b8[7]; - digest[5] = ctxt->h.b8[6]; - digest[6] = ctxt->h.b8[5]; - digest[7] = ctxt->h.b8[4]; - digest[8] = ctxt->h.b8[11]; - digest[9] = ctxt->h.b8[10]; - digest[10] = ctxt->h.b8[9]; - digest[11] = ctxt->h.b8[8]; - digest[12] = ctxt->h.b8[15]; - digest[13] = ctxt->h.b8[14]; - digest[14] = ctxt->h.b8[13]; - digest[15] = ctxt->h.b8[12]; - digest[16] = ctxt->h.b8[19]; - digest[17] = ctxt->h.b8[18]; - digest[18] = ctxt->h.b8[17]; - digest[19] = ctxt->h.b8[16]; -#endif -} |
