tAdd sha512 functions from libtom.net - synk - synchronize files between hosts
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---
(DIR) commit 8aad91fb1540045a248744041212c426a34b589d
(DIR) parent dcf66f769d632628259c687de8ad059e2a4ac2e6
(HTM) Author: Willy <willyatmailoodotorg>
Date: Thu, 18 Aug 2016 23:15:22 +0200
Add sha512 functions from libtom.net
Diffstat:
M mkfile | 2 +-
A sha512.c | 206 +++++++++++++++++++++++++++++++
A sha512.h | 13 +++++++++++++
M synk.c | 1 +
4 files changed, 221 insertions(+), 1 deletion(-)
---
(DIR) diff --git a/mkfile b/mkfile
t@@ -1,6 +1,6 @@
<config.mk
-synk: synk.o
+synk: synk.o sha512.o
$LD -o $target $prereq $LDFLAGS $LIBS
%.o: %.c
(DIR) diff --git a/sha512.c b/sha512.c
t@@ -0,0 +1,206 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include <stdint.h>
+
+#include "sha512.h"
+
+/* the K array */
+static const uint64_t K[80] = {
+UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd),
+UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc),
+UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019),
+UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118),
+UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe),
+UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2),
+UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1),
+UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694),
+UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3),
+UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65),
+UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483),
+UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5),
+UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210),
+UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4),
+UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725),
+UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70),
+UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926),
+UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df),
+UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8),
+UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b),
+UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001),
+UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30),
+UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910),
+UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8),
+UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53),
+UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8),
+UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb),
+UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3),
+UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60),
+UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec),
+UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9),
+UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b),
+UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207),
+UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178),
+UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6),
+UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b),
+UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493),
+UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c),
+UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a),
+UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817)
+};
+
+/* Various logical functions */
+#define STORE64H(x, y) \
+ { (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255); \
+ (y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255); \
+ (y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255); \
+ (y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); }
+
+#define LOAD64H(x, y) \
+ { x = (((uint64_t)((y)[0] & 255))<<56)|(((uint64_t)((y)[1] & 255))<<48) | \
+ (((uint64_t)((y)[2] & 255))<<40)|(((uint64_t)((y)[3] & 255))<<32) | \
+ (((uint64_t)((y)[4] & 255))<<24)|(((uint64_t)((y)[5] & 255))<<16) | \
+ (((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
+
+#define ROR64c(x, y) \
+ ( ((((x)&UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)(y)&UINT64_C(63))) | \
+ ((x)<<((uint64_t)(64-((y)&UINT64_C(63)))))) & UINT64_C(0xFFFFFFFFFFFFFFFF))
+
+#define Ch(x,y,z) (z ^ (x & (y ^ z)))
+#define Maj(x,y,z) (((x | y) & z) | (x & y))
+#define S(x, n) ROR64c(x, n)
+#define R(x, n) (((x)&UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n))
+#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
+#define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
+#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
+#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
+
+/* compress 1024-bits */
+static int sha512_compress(sha512_state * md, unsigned char *buf)
+{
+ uint64_t S[8], W[80], t0, t1;
+ int i;
+
+ /* copy state into S */
+ for (i = 0; i < 8; i++) {
+ S[i] = md->state[i];
+ }
+
+ /* copy the state into 1024-bits into W[0..15] */
+ for (i = 0; i < 16; i++) {
+ LOAD64H(W[i], buf + (8*i));
+ }
+
+ /* fill W[16..79] */
+ for (i = 16; i < 80; i++) {
+ W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
+ }
+
+ /* Compress */
+ for (i = 0; i < 80; i++) {
+ t0 = S[7] + Sigma1(S[4]) + Ch(S[4], S[5], S[6]) + K[i] + W[i];
+ t1 = Sigma0(S[0]) + Maj(S[0], S[1], S[2]);
+ S[7] = S[6];
+ S[6] = S[5];
+ S[5] = S[4];
+ S[4] = S[3] + t0;
+ S[3] = S[2];
+ S[2] = S[1];
+ S[1] = S[0];
+ S[0] = t0 + t1;
+ }
+
+ /* feedback */
+ for (i = 0; i < 8; i++) {
+ md->state[i] = md->state[i] + S[i];
+ }
+
+ return 0;
+}
+
+
+/**
+ Initialize the hash state
+ @param md The hash state you wish to initialize
+ @return 0 if successful
+*/
+int sha512_init(sha512_state * md)
+{
+ if (md != NULL) return 1;
+ md->curlen = 0;
+ md->length = 0;
+ md->state[0] = UINT64_C(0x6a09e667f3bcc908);
+ md->state[1] = UINT64_C(0xbb67ae8584caa73b);
+ md->state[2] = UINT64_C(0x3c6ef372fe94f82b);
+ md->state[3] = UINT64_C(0xa54ff53a5f1d36f1);
+ md->state[4] = UINT64_C(0x510e527fade682d1);
+ md->state[5] = UINT64_C(0x9b05688c2b3e6c1f);
+ md->state[6] = UINT64_C(0x1f83d9abfb41bd6b);
+ md->state[7] = UINT64_C(0x5be0cd19137e2179);
+ return 0;
+}
+
+/**
+ Terminate the hash to get the digest
+ @param md The hash state
+ @param out [out] The destination of the hash (64 bytes)
+ @return 0 if successful
+*/
+int sha512_done(sha512_state * md, unsigned char *out)
+{
+ int i;
+
+ if (md != NULL) return 1;
+ if (out != NULL) return 1;
+
+ if (md->curlen >= sizeof(md->buf)) {
+ return 1;
+ }
+
+ /* increase the length of the message */
+ md->length += md->curlen * UINT64_C(8);
+
+ /* append the '1' bit */
+ md->buf[md->curlen++] = (unsigned char)0x80;
+
+ /* if the length is currently above 112 bytes we append zeros
+ * then compress. Then we can fall back to padding zeros and length
+ * encoding like normal.
+ */
+ if (md->curlen > 112) {
+ while (md->curlen < 128) {
+ md->buf[md->curlen++] = (unsigned char)0;
+ }
+ sha512_compress(md, md->buf);
+ md->curlen = 0;
+ }
+
+ /* pad upto 120 bytes of zeroes
+ * note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash
+ * > 2^64 bits of data... :-)
+ */
+ while (md->curlen < 120) {
+ md->buf[md->curlen++] = (unsigned char)0;
+ }
+
+ /* store length */
+ STORE64H(md->length, md->buf+120);
+ sha512_compress(md, md->buf);
+
+ /* copy output */
+ for (i = 0; i < 8; i++) {
+ STORE64H(md->state[i], out+(8*i));
+ }
+ return 0;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/hashes/sha2/sha512.c,v $ */
+/* $Revision: 1.10 $ */
+/* $Date: 2007/05/12 14:25:28 $ */
(DIR) diff --git a/sha512.h b/sha512.h
t@@ -0,0 +1,13 @@
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct sha512_state {
+ uint64_t length, state[8];
+ unsigned long curlen;
+ unsigned char buf[128];
+} sha512_state;
+
+
+int sha512_init(sha512_state * md);
+int sha512_process(sha512_state * md, const unsigned char *in, unsigned long inlen);
+int sha512_done(sha512_state * md, unsigned char *hash);
(DIR) diff --git a/synk.c b/synk.c
t@@ -1,4 +1,5 @@
#include <limits.h>
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>