XBT_SRC=\
\
- xbt/snprintf.c xbt/xbt_str.c xbt/xbt_strbuff.c \
+ xbt/snprintf.c xbt/xbt_str.c xbt/xbt_strbuff.c xbt/xbt_sha.c \
xbt/ex.c \
\
xbt_modinter.h gras_modinter.h \
noinst_PROGRAMS=testall
TEST_CFILES=xbt/cunit.c xbt/ex.c \
xbt/dynar.c xbt/dict.c xbt/set.c xbt/swag.c \
- xbt/xbt_str.c \
+ xbt/xbt_str.c xbt/xbt_sha.c \
xbt/config.c
-TEST_UNITS= @builddir@/cunit_unit.c @builddir@/ex_unit.c \
- @builddir@/dynar_unit.c @builddir@/dict_unit.c @builddir@/set_unit.c @builddir@/swag_unit.c \
- @builddir@/xbt_str_unit.c \
+TEST_UNITS= @builddir@/cunit_unit.c @builddir@/ex_unit.c \
+ @builddir@/dynar_unit.c @builddir@/dict_unit.c @builddir@/set_unit.c @builddir@/swag_unit.c \
+ @builddir@/xbt_str_unit.c @builddir@/xbt_sha_unit.c\
@builddir@/config_unit.c
BUILT_SOURCES=../include/surf/simgrid_dtd.h surf/simgrid_dtd.c \
@top_srcdir@/tools/sg_unit_extractor.pl $^
@builddir@/xbt_str_unit.c: xbt/xbt_str.c
@top_srcdir@/tools/sg_unit_extractor.pl $^
+@builddir@/xbt_sha_unit.c: xbt/xbt_sha.c
+ @top_srcdir@/tools/sg_unit_extractor.pl $^
@builddir@/dynar_unit.c: xbt/dynar.c
@top_srcdir@/tools/sg_unit_extractor.pl $^
@builddir@/dict_unit.c: xbt/dict.c
--- /dev/null
+/* $Id$ */
+/* xbt_sha.c - SHA1 hash function */
+
+/* Initial version part of iksemel (XML parser for Jabber)
+ * Copyright (C) 2000-2003 Gurer Ozen <madcat@e-kolay.net>
+ * This code is free software; you can redistribute it and/or
+ * modify it under the terms of GNU Lesser General Public License. */
+/* Adapted to fit into SimGrid by Martin Quinson. */
+
+#include "xbt/sysdep.h"
+#include "xbt/hash.h"
+
+struct s_xbt_sha_ {
+ unsigned int hash[5];
+ unsigned int buf[80];
+ int blen;
+ unsigned int lenhi, lenlo;
+};
+static void sha_calculate (xbt_sha_t sha);
+
+/* ************** */
+/* User Interface */
+/* ************** */
+
+/** @brief constructor */
+xbt_sha_t xbt_sha_new (void) {
+ xbt_sha_t sha;
+
+ sha = xbt_new(s_xbt_sha_t,1);
+ xbt_sha_reset (sha);
+
+ return sha;
+}
+
+/** @brief destructor */
+void xbt_sha_free (xbt_sha_t sha) {
+ free (sha);
+}
+
+void xbt_sha_reset (xbt_sha_t sha) {
+ memset (sha, 0, sizeof (s_xbt_sha_t));
+ sha->hash[0] = 0x67452301;
+ sha->hash[1] = 0xefcdab89;
+ sha->hash[2] = 0x98badcfe;
+ sha->hash[3] = 0x10325476;
+ sha->hash[4] = 0xc3d2e1f0;
+}
+
+/* @brief Add some more data to the buffer */
+void xbt_sha_feed (xbt_sha_t sha, const unsigned char *data, size_t len) {
+ int i;
+
+ for (i=0; i<len; i++) {
+ sha->buf[sha->blen / 4] <<= 8;
+ sha->buf[sha->blen / 4] |= (unsigned int)data[i];
+ if ((++sha->blen) % 64 == 0) {
+ sha_calculate (sha);
+ sha->blen = 0;
+ }
+ sha->lenlo += 8;
+ sha->lenhi += (sha->lenlo < 8);
+ }
+}
+
+/* finalize computation before displaying the result */
+static void xbt_sha_finalize (xbt_sha_t sha) {
+ unsigned char pad[8];
+ unsigned char padc;
+
+ pad[0] = (unsigned char)((sha->lenhi >> 24) & 0xff);
+ pad[1] = (unsigned char)((sha->lenhi >> 16) & 0xff);
+ pad[2] = (unsigned char)((sha->lenhi >> 8) & 0xff);
+ pad[3] = (unsigned char)(sha->lenhi & 0xff);
+ pad[4] = (unsigned char)((sha->lenlo >> 24) & 0xff);
+ pad[5] = (unsigned char)((sha->lenlo >> 16) & 0xff);
+ pad[6] = (unsigned char)((sha->lenlo >> 8) & 0xff);
+ pad[7] = (unsigned char)(sha->lenlo & 255);
+
+ padc = 0x80;
+ xbt_sha_feed (sha, &padc, 1);
+
+ padc = 0x00;
+ while (sha->blen != 56)
+ xbt_sha_feed (sha, &padc, 1);
+
+ xbt_sha_feed (sha, pad, 8);
+}
+
+/** @brief returns the sha hash into a newly allocated buffer (+ reset sha object) */
+char *xbt_sha_read(xbt_sha_t sha) {
+ char *res = xbt_malloc(40);
+ xbt_sha_print(sha,res);
+ return res;
+}
+
+/** @brief copy the content sha hash into the @a hash pre-allocated string (and reset buffer) */
+void xbt_sha_print (xbt_sha_t sha, char *hash) {
+ int i;
+
+ xbt_sha_finalize(sha);
+ for (i=0; i<5; i++) {
+ sprintf (hash, "%08x", sha->hash[i]);
+ hash += 8;
+ }
+}
+
+
+/** @brief simply compute a SHA1 hash and copy it to the provided buffer */
+void xbt_sha (const char *data, char *hash) {
+ s_xbt_sha_t sha;
+
+ xbt_sha_reset (&sha);
+ xbt_sha_feed (&sha, (const unsigned char*)data, strlen (data));
+
+ xbt_sha_print (&sha, hash);
+}
+
+/* ********************* */
+/* Core of the algorithm */
+/* ********************* */
+
+#define SRL(x,y) (((x) << (y)) | ((x) >> (32-(y))))
+#define SHA(a,b,f,c) \
+ for (i= (a) ; i<= (b) ; i++) { \
+ TMP = SRL(A,5) + ( (f) ) + E + sha->buf[i] + (c) ; \
+ E = D; \
+ D = C; \
+ C = SRL(B,30); \
+ B = A; \
+ A = TMP; \
+ }
+
+static void sha_calculate (xbt_sha_t sha)
+{
+ int i;
+ unsigned int A, B, C, D, E, TMP;
+
+ for (i=16; i<80; i++)
+ sha->buf[i] = SRL (sha->buf[i-3] ^ sha->buf[i-8] ^ sha->buf[i-14] ^ sha->buf[i-16], 1);
+
+ A = sha->hash[0];
+ B = sha->hash[1];
+ C = sha->hash[2];
+ D = sha->hash[3];
+ E = sha->hash[4];
+
+ SHA (0, 19, ((C^D)&B)^D, 0x5a827999);
+ SHA (20, 39, B^C^D, 0x6ed9eba1);
+ SHA (40, 59, (B&C)|(D&(B|C)), 0x8f1bbcdc);
+ SHA (60, 79, B^C^D, 0xca62c1d6);
+
+ sha->hash[0] += A;
+ sha->hash[1] += B;
+ sha->hash[2] += C;
+ sha->hash[3] += D;
+ sha->hash[4] += E;
+}
+
+/* ************* */
+/* Testing stuff */
+/* ************* */
+#ifdef SIMGRID_TEST
+#include "xbt/hash.h"
+#include "portable.h" /* hexa_str */
+
+static char* mycmp(const char *p1, const char *p2,size_t n) {
+ int i;
+
+ for (i=0; i<n; i++) {
+ if (p1[i] != p2[i]) {
+ return bprintf("Differs on %d -- Ox%x",i,p1[i]);
+ }
+ }
+ return xbt_strdup("");
+}
+
+static void test_sha(const char *clear,const char *hashed) {
+ char hash[41];
+ xbt_sha(clear,hash);
+
+ xbt_test_add1("==== Test with '%s'",clear);
+ xbt_test_assert3(!memcmp(hash, hashed, 40), "Wrong sha: %40s!=%40s (%s)",
+ hash,hashed,mycmp(hash,hashed,40));
+}
+
+XBT_TEST_SUITE("hash","Various hash functions");
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(hash,"Tests of various hash functions ");
+
+
+XBT_TEST_UNIT("sha",test_crypto_sha,"Test of the sha algorithm") {
+ /* Empty string as test vector */
+ test_sha("", "da39a3ee5e6b4b0d3255bfef95601890afd80709");
+
+ /* Some pangram as test vector */
+ test_sha("The quick brown fox jumps over the lazy dog", "2fd4e1c67a2d28fced849ee1bb76e7391b93eb12");
+ test_sha("Woven silk pyjamas exchanged for blue quartz","da3aff337c810c6470db4dbf0f205c8afc31c442");
+ test_sha("Pack my box with five dozen liquor jugs", "373ba8be29d4d95708bf7cd43038f4e409dcb439");
+
+}
+#endif /* SIMGRID_TEST */
