diff options
Diffstat (limited to 'contrib/epee/include/md5_l.inl')
| -rw-r--r-- | contrib/epee/include/md5_l.inl | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/contrib/epee/include/md5_l.inl b/contrib/epee/include/md5_l.inl index cb2bd54f9..28d52c23c 100644 --- a/contrib/epee/include/md5_l.inl +++ b/contrib/epee/include/md5_l.inl @@ -65,7 +65,6 @@ documentation and/or software. #endif #include "md5global.h" #include "md5_l.h" -#include "hmac-md5.h" namespace md5 { @@ -89,16 +88,6 @@ namespace md5 #define S43 15 #define S44 21 - /* - static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64])); - static void Encode PROTO_LIST - ((unsigned char *, UINT4 *, unsigned int)); - static void Decode PROTO_LIST - ((UINT4 *, unsigned char *, unsigned int)); - static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int)); - static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int)); - */ - static void MD5_memcpy (POINTER output, POINTER input, unsigned int len) { unsigned int i; @@ -107,17 +96,6 @@ namespace md5 output[i] = input[i]; } - /* Note: Replace "for loop" with standard memset if possible. - */ - - static void MD5_memset (POINTER output, int value, unsigned int len) - { - unsigned int i; - - for (i = 0; i < len; i++) - ((char *)output)[i] = (char)value; - } - static void MD5Transform (UINT4 state[4], unsigned char block[64]); static unsigned char* PADDING() @@ -371,190 +349,4 @@ namespace md5 */ memwipe ((POINTER)x, sizeof (x)); } - - /* Note: Replace "for loop" with standard memcpy if possible. - - */ - inline - void hmac_md5_init(HMAC_MD5_CTX *hmac, - const unsigned char *key, - int key_len) - { - unsigned char k_ipad[65]; /* inner padding - - * key XORd with ipad - */ - unsigned char k_opad[65]; /* outer padding - - * key XORd with opad - */ - unsigned char tk[16]; - int i; - /* if key is longer than 64 bytes reset it to key=MD5(key) */ - if (key_len > 64) { - - MD5_CTX tctx; - - MD5Init(&tctx); - MD5Update(&tctx, key, key_len); - MD5Final(tk, &tctx); - - key = tk; - key_len = 16; - } - - /* - * the HMAC_MD5 transform looks like: - * - * MD5(K XOR opad, MD5(K XOR ipad, text)) - * - * where K is an n byte key - * ipad is the byte 0x36 repeated 64 times - * opad is the byte 0x5c repeated 64 times - * and text is the data being protected - */ - - /* start out by storing key in pads */ - MD5_memset(k_ipad, '\0', sizeof k_ipad); - MD5_memset(k_opad, '\0', sizeof k_opad); - MD5_memcpy( k_ipad, (POINTER)key, key_len); - MD5_memcpy( k_opad, (POINTER)key, key_len); - - /* XOR key with ipad and opad values */ - for (i=0; i<64; i++) { - k_ipad[i] ^= 0x36; - k_opad[i] ^= 0x5c; - } - - MD5Init(&hmac->ictx); /* init inner context */ - MD5Update(&hmac->ictx, k_ipad, 64); /* apply inner pad */ - - MD5Init(&hmac->octx); /* init outer context */ - MD5Update(&hmac->octx, k_opad, 64); /* apply outer pad */ - - /* scrub the pads and key context (if used) */ - memwipe( (POINTER)&k_ipad, sizeof(k_ipad)); - memwipe( (POINTER)&k_opad, sizeof(k_opad)); - memwipe( (POINTER)&tk, sizeof(tk)); - - /* and we're done. */ - } - - /* The precalc and import routines here rely on the fact that we pad - * the key out to 64 bytes and use that to initialize the md5 - * contexts, and that updating an md5 context with 64 bytes of data - * leaves nothing left over; all of the interesting state is contained - * in the state field, and none of it is left over in the count and - * buffer fields. So all we have to do is save the state field; we - * can zero the others when we reload it. Which is why the decision - * was made to pad the key out to 64 bytes in the first place. */ - inline - void hmac_md5_precalc(HMAC_MD5_STATE *state, - const unsigned char *key, - int key_len) - { - HMAC_MD5_CTX hmac; - unsigned lupe; - - hmac_md5_init(&hmac, key, key_len); - for (lupe = 0; lupe < 4; lupe++) { - state->istate[lupe] = htonl(hmac.ictx.state[lupe]); - state->ostate[lupe] = htonl(hmac.octx.state[lupe]); - } - memwipe( (POINTER)&hmac, sizeof(hmac)); - } - - - inline - void hmac_md5_import(HMAC_MD5_CTX *hmac, - HMAC_MD5_STATE *state) - { - unsigned lupe; - MD5_memset( (POINTER)hmac, 0, sizeof(HMAC_MD5_CTX)); - for (lupe = 0; lupe < 4; lupe++) { - hmac->ictx.state[lupe] = ntohl(state->istate[lupe]); - hmac->octx.state[lupe] = ntohl(state->ostate[lupe]); - } - /* Init the counts to account for our having applied - * 64 bytes of key; this works out to 0x200 (64 << 3; see - * MD5Update above...) */ - hmac->ictx.count[0] = hmac->octx.count[0] = 0x200; - } - - inline - void hmac_md5_final(unsigned char digest[HMAC_MD5_SIZE], - HMAC_MD5_CTX *hmac) - { - MD5Final(digest, &hmac->ictx); /* Finalize inner md5 */ - MD5Update(&hmac->octx, digest, 16); /* Update outer ctx */ - MD5Final(digest, &hmac->octx); /* Finalize outer md5 */ - } - - - void hmac_md5(const unsigned char* text, int text_len, const unsigned char* key, int key_len, unsigned char *digest) - { - MD5_CTX context; - - unsigned char k_ipad[65]; /* inner padding - - * key XORd with ipad - */ - unsigned char k_opad[65]; /* outer padding - - * key XORd with opad - */ - unsigned char tk[16]; - int i; - /* if key is longer than 64 bytes reset it to key=MD5(key) */ - if (key_len > 64) { - - MD5_CTX tctx; - - MD5Init(&tctx); - MD5Update(&tctx, key, key_len); - MD5Final(tk, &tctx); - - key = tk; - key_len = 16; - } - - /* - * the HMAC_MD5 transform looks like: - * - * MD5(K XOR opad, MD5(K XOR ipad, text)) - * - * where K is an n byte key - * ipad is the byte 0x36 repeated 64 times - * opad is the byte 0x5c repeated 64 times - * and text is the data being protected - */ - - /* start out by storing key in pads */ - MD5_memset(k_ipad, '\0', sizeof k_ipad); - MD5_memset(k_opad, '\0', sizeof k_opad); - MD5_memcpy( k_ipad, (POINTER)key, key_len); - MD5_memcpy( k_opad, (POINTER)key, key_len); - - /* XOR key with ipad and opad values */ - for (i=0; i<64; i++) { - k_ipad[i] ^= 0x36; - k_opad[i] ^= 0x5c; - } - /* - * perform inner MD5 - */ - - MD5Init(&context); /* init context for 1st - * pass */ - MD5Update(&context, k_ipad, 64); /* start with inner pad */ - MD5Update(&context, text, text_len); /* then text of datagram */ - MD5Final(digest, &context); /* finish up 1st pass */ - - /* - * perform outer MD5 - */ - MD5Init(&context); /* init context for 2nd - * pass */ - MD5Update(&context, k_opad, 64); /* start with outer pad */ - MD5Update(&context, digest, 16); /* then results of 1st - * hash */ - MD5Final(digest, &context); /* finish up 2nd pass */ - - } } |