diff options
Diffstat (limited to 'src/mir_core/sha1.cpp')
| -rw-r--r-- | src/mir_core/sha1.cpp | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/src/mir_core/sha1.cpp b/src/mir_core/sha1.cpp index 9e1b376d92..5e82a3ce5b 100644 --- a/src/mir_core/sha1.cpp +++ b/src/mir_core/sha1.cpp @@ -94,7 +94,7 @@ MIR_CORE_DLL(void) mir_sha1_init(mir_sha1_ctx *ctx) ctx->W[i] = 0;
}
-MIR_CORE_DLL(void) mir_sha1_append(mir_sha1_ctx *ctx, mir_sha1_byte_t *dataIn, int len)
+MIR_CORE_DLL(void) mir_sha1_append(mir_sha1_ctx *ctx, const BYTE *dataIn, int len)
{
/* Read the data into W and process blocks as they get full
*/
@@ -110,7 +110,7 @@ MIR_CORE_DLL(void) mir_sha1_append(mir_sha1_ctx *ctx, mir_sha1_byte_t *dataIn, i }
}
-MIR_CORE_DLL(void) mir_sha1_finish(mir_sha1_ctx *ctx, mir_sha1_byte_t hashout[20])
+MIR_CORE_DLL(void) mir_sha1_finish(mir_sha1_ctx *ctx, BYTE hashout[20])
{
unsigned char pad0x80 = 0x80;
unsigned char pad0x00 = 0x00;
@@ -145,7 +145,7 @@ MIR_CORE_DLL(void) mir_sha1_finish(mir_sha1_ctx *ctx, mir_sha1_byte_t hashout[20 mir_sha1_init(ctx);
}
-MIR_CORE_DLL(void) mir_sha1_hash(mir_sha1_byte_t *dataIn, int len, mir_sha1_byte_t hashout[20])
+MIR_CORE_DLL(void) mir_sha1_hash(BYTE *dataIn, int len, BYTE hashout[20])
{
mir_sha1_ctx ctx;
@@ -153,3 +153,41 @@ MIR_CORE_DLL(void) mir_sha1_hash(mir_sha1_byte_t *dataIn, int len, mir_sha1_byte mir_sha1_append(&ctx, dataIn, len);
mir_sha1_finish(&ctx, hashout);
}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+
+MIR_CORE_DLL(void) mir_hmac_sha1(BYTE hashout[MIR_SHA1_HASH_SIZE], const BYTE *key, size_t keylen, const BYTE *text, size_t textlen)
+{
+ const unsigned SHA_BLOCKSIZE = 64;
+
+ BYTE mdkey[MIR_SHA1_HASH_SIZE], k_ipad[SHA_BLOCKSIZE], k_opad[SHA_BLOCKSIZE];
+ mir_sha1_ctx ctx;
+
+ if (keylen > SHA_BLOCKSIZE) {
+ mir_sha1_init(&ctx);
+ mir_sha1_append(&ctx, key, (int)keylen);
+ mir_sha1_finish(&ctx, mdkey);
+ keylen = 20;
+ key = mdkey;
+ }
+
+ memcpy(k_ipad, key, keylen);
+ memcpy(k_opad, key, keylen);
+ memset(k_ipad+keylen, 0x36, SHA_BLOCKSIZE - keylen);
+ memset(k_opad+keylen, 0x5c, SHA_BLOCKSIZE - keylen);
+
+ for (unsigned i = 0; i < keylen; i++) {
+ k_ipad[i] ^= 0x36;
+ k_opad[i] ^= 0x5c;
+ }
+
+ mir_sha1_init(&ctx);
+ mir_sha1_append(&ctx, k_ipad, SHA_BLOCKSIZE);
+ mir_sha1_append(&ctx, text, (int)textlen);
+ mir_sha1_finish(&ctx, hashout);
+
+ mir_sha1_init(&ctx);
+ mir_sha1_append(&ctx, k_opad, SHA_BLOCKSIZE);
+ mir_sha1_append(&ctx, hashout, MIR_SHA1_HASH_SIZE);
+ mir_sha1_finish(&ctx, hashout);
+}
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