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author | Jeffrey C. Ollie <jeff@ocjtech.us> | 2007-08-25 22:31:07 -0500 |
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committer | Jeffrey C. Ollie <jeff@ocjtech.us> | 2009-10-22 23:48:43 -0500 |
commit | e909440a2abcdf1ed58810a20a7fd6a8f187816f (patch) | |
tree | bb7cabeab4b4e14e1f92d0b9483a1d3a242cced9 | |
parent | a5f5d88a10e90c0dac44c8e845d8ce295a233bbd (diff) | |
download | iksemel-e909440a2abcdf1ed58810a20a7fd6a8f187816f.tar.gz iksemel-e909440a2abcdf1ed58810a20a7fd6a8f187816f.tar.xz iksemel-e909440a2abcdf1ed58810a20a7fd6a8f187816f.zip |
Strip out internal SHA code and use functions from gcrypt.
-rw-r--r-- | configure.ac | 1 | ||||
-rw-r--r-- | src/Makefile.am | 4 | ||||
-rw-r--r-- | src/sha.c | 108 |
3 files changed, 18 insertions, 95 deletions
diff --git a/configure.ac b/configure.ac index 952bbe6..b215f1c 100644 --- a/configure.ac +++ b/configure.ac @@ -54,6 +54,7 @@ if test "x$have_gnutls" = "xyes"; then AC_SUBST(LIBGNUTLS_LIBS) AC_DEFINE(HAVE_GNUTLS, 1, [whether to use GnuTSL support.]) fi +AM_PATH_LIBGCRYPT(,AC_DEFINE(HAVE_LIBGCRYPT,,"Use libgcrypt")) dnl Check -Wall flag of GCC if test "x$GCC" = "xyes"; then diff --git a/src/Makefile.am b/src/Makefile.am index 303671c..f13f482 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -25,5 +25,5 @@ libiksemel_la_SOURCES = \ base64.c libiksemel_la_LDFLAGS = -version-info 4:1:1 -no-undefined -libiksemel_la_CFLAGS = $(CFLAGS) $(LIBGNUTLS_CFLAGS) -libiksemel_la_LIBADD = $(LIBGNUTLS_LIBS) +libiksemel_la_CFLAGS = $(CFLAGS) $(LIBGNUTLS_CFLAGS) $(LIBGCRYPT_CFLAGS) +libiksemel_la_LIBADD = $(LIBGNUTLS_LIBS) $(LIBGCRYPT_LIBS) @@ -4,17 +4,13 @@ ** modify it under the terms of GNU Lesser General Public License. */ +#include <gcrypt.h> + #include "common.h" #include "iksemel.h" -static void sha_buffer (iksha *sha, const unsigned char *data, int len); -static void sha_calculate (iksha *sha); - struct iksha_struct { - unsigned int hash[5]; - unsigned int buf[80]; - int blen; - unsigned int lenhi, lenlo; + gcry_md_hd_t c; }; iksha * @@ -32,56 +28,37 @@ void iks_sha_reset (iksha *sha) { memset (sha, 0, sizeof (iksha)); - sha->hash[0] = 0x67452301; - sha->hash[1] = 0xefcdab89; - sha->hash[2] = 0x98badcfe; - sha->hash[3] = 0x10325476; - sha->hash[4] = 0xc3d2e1f0; + gcry_md_open(&sha->c, GCRY_MD_SHA1, 0); } void iks_sha_hash (iksha *sha, const unsigned char *data, size_t len, int finish) { - unsigned char pad[8]; - unsigned char padc; - - if (data && len != 0) sha_buffer (sha, data, len); - if (!finish) return; - - 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; - sha_buffer (sha, &padc, 1); - - padc = 0x00; - while (sha->blen != 56) - sha_buffer (sha, &padc, 1); - - sha_buffer (sha, pad, 8); + if (data && len != 0) + gcry_md_write(sha->c, data, len); + if (finish) + gcry_md_final(sha->c); } void iks_sha_print (iksha *sha, char *hash) { + unsigned char bin[20]; int i; - for (i=0; i<5; i++) + memcpy(bin, gcry_md_read(sha->c, 0), 20); + + for (i=0; i<20; i++) { - sprintf (hash, "%08x", sha->hash[i]); - hash += 8; + sprintf (hash, "%02x", bin[i]); + hash += 2; } } void iks_sha_delete (iksha *sha) { + gcry_md_close(sha->c); iks_free (sha); } @@ -95,58 +72,3 @@ iks_sha (const char *data, char *hash) iks_sha_print (sha, hash); iks_free (sha); } - -static void -sha_buffer (iksha *sha, const unsigned char *data, int 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); - } -} - -#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 (iksha *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; -} |