diff options
Diffstat (limited to 'src/modules/utils/sha1.cpp')
| -rw-r--r-- | src/modules/utils/sha1.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/modules/utils/sha1.cpp b/src/modules/utils/sha1.cpp new file mode 100644 index 0000000000..c89a60ca46 --- /dev/null +++ b/src/modules/utils/sha1.cpp @@ -0,0 +1,175 @@ +/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is SHA 180-1 Reference Implementation (Compact version).
+ *
+ * The Initial Developer of the Original Code is
+ * Paul Kocher of Cryptography Research.
+ * Portions created by the Initial Developer are Copyright (C) 1995-9
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "commonheaders.h"
+
+static void shaHashBlock(mir_sha1_ctx *ctx);
+
+void shaInit(mir_sha1_ctx *ctx) {
+ int i;
+
+ ctx->lenW = 0;
+ ctx->sizeHi = ctx->sizeLo = 0;
+
+ /* Initialize H with the magic constants (see FIPS180 for constants)
+ */
+ ctx->H[0] = 0x67452301L;
+ ctx->H[1] = 0xefcdab89L;
+ ctx->H[2] = 0x98badcfeL;
+ ctx->H[3] = 0x10325476L;
+ ctx->H[4] = 0xc3d2e1f0L;
+
+ for (i = 0; i < 80; i++)
+ ctx->W[i] = 0;
+}
+
+
+void shaUpdate(mir_sha1_ctx *ctx, mir_sha1_byte_t *dataIn, int len) {
+ int i;
+
+ /* Read the data into W and process blocks as they get full
+ */
+ for (i = 0; i < len; i++) {
+ ctx->W[ctx->lenW / 4] <<= 8;
+ ctx->W[ctx->lenW / 4] |= (unsigned long)dataIn[i];
+ if ((++ctx->lenW) % 64 == 0) {
+ shaHashBlock(ctx);
+ ctx->lenW = 0;
+ }
+ ctx->sizeLo += 8;
+ ctx->sizeHi += (ctx->sizeLo < 8);
+ }
+}
+
+
+void shaFinal(mir_sha1_ctx *ctx, mir_sha1_byte_t hashout[20]) {
+ unsigned char pad0x80 = 0x80;
+ unsigned char pad0x00 = 0x00;
+ unsigned char padlen[8];
+ int i;
+
+ /* Pad with a binary 1 (e.g. 0x80), then zeroes, then length
+ */
+ padlen[0] = (unsigned char)((ctx->sizeHi >> 24) & 255);
+ padlen[1] = (unsigned char)((ctx->sizeHi >> 16) & 255);
+ padlen[2] = (unsigned char)((ctx->sizeHi >> 8) & 255);
+ padlen[3] = (unsigned char)((ctx->sizeHi >> 0) & 255);
+ padlen[4] = (unsigned char)((ctx->sizeLo >> 24) & 255);
+ padlen[5] = (unsigned char)((ctx->sizeLo >> 16) & 255);
+ padlen[6] = (unsigned char)((ctx->sizeLo >> 8) & 255);
+ padlen[7] = (unsigned char)((ctx->sizeLo >> 0) & 255);
+ shaUpdate(ctx, &pad0x80, 1);
+ while (ctx->lenW != 56)
+ shaUpdate(ctx, &pad0x00, 1);
+ shaUpdate(ctx, padlen, 8);
+
+ /* Output hash
+ */
+ for (i = 0; i < 20; i++) {
+ hashout[i] = (unsigned char)(ctx->H[i / 4] >> 24);
+ ctx->H[i / 4] <<= 8;
+ }
+
+ /*
+ * Re-initialize the context (also zeroizes contents)
+ */
+ shaInit(ctx);
+}
+
+
+void shaBlock(mir_sha1_byte_t *dataIn, int len, mir_sha1_byte_t hashout[20]) {
+ mir_sha1_ctx ctx;
+
+ shaInit(&ctx);
+ shaUpdate(&ctx, dataIn, len);
+ shaFinal(&ctx, hashout);
+}
+
+
+#define SHA_ROTL(X,n) (((X) << (n)) | ((X) >> (32-(n))))
+
+static void shaHashBlock(mir_sha1_ctx *ctx) {
+ int t;
+ unsigned long A,B,C,D,E,TEMP;
+
+ for (t = 16; t <= 79; t++)
+ ctx->W[t] =
+ SHA_ROTL(ctx->W[t-3] ^ ctx->W[t-8] ^ ctx->W[t-14] ^ ctx->W[t-16], 1);
+
+ A = ctx->H[0];
+ B = ctx->H[1];
+ C = ctx->H[2];
+ D = ctx->H[3];
+ E = ctx->H[4];
+
+ for (t = 0; t <= 19; t++) {
+ TEMP = SHA_ROTL(A,5) + (((C^D)&B)^D) + E + ctx->W[t] + 0x5a827999L;
+ E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
+ }
+ for (t = 20; t <= 39; t++) {
+ TEMP = SHA_ROTL(A,5) + (B^C^D) + E + ctx->W[t] + 0x6ed9eba1L;
+ E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
+ }
+ for (t = 40; t <= 59; t++) {
+ TEMP = SHA_ROTL(A,5) + ((B&C)|(D&(B|C))) + E + ctx->W[t] + 0x8f1bbcdcL;
+ E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
+ }
+ for (t = 60; t <= 79; t++) {
+ TEMP = SHA_ROTL(A,5) + (B^C^D) + E + ctx->W[t] + 0xca62c1d6L;
+ E = D; D = C; C = SHA_ROTL(B, 30); B = A; A = TEMP;
+ }
+
+ ctx->H[0] += A;
+ ctx->H[1] += B;
+ ctx->H[2] += C;
+ ctx->H[3] += D;
+ ctx->H[4] += E;
+}
+
+INT_PTR GetSHA1Interface(WPARAM, LPARAM lParam)
+{
+ struct SHA1_INTERFACE *sha1i = (struct SHA1_INTERFACE*) lParam;
+ if ( sha1i == NULL )
+ return 1;
+ if ( sha1i->cbSize != sizeof( struct SHA1_INTERFACE ))
+ return 1;
+
+ sha1i->sha1_init = shaInit;
+ sha1i->sha1_append = shaUpdate;
+ sha1i->sha1_finish = shaFinal;
+ sha1i->sha1_hash = shaBlock;
+ return 0;
+}
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