add: Import libdetectcoll v0.2 source code by Marc Steven

[cassiopeia.git] / lib / collissiondetect / src / main.c

diff --git a/lib/collissiondetect/src/main.c b/lib/collissiondetect/src/main.c
new file mode 100644 (file)
index 0000000..9bb6c8c
--- /dev/null
+++ b/lib/collissiondetect/src/main.c
@@ -0,0 +1,102 @@
+/**************************************************************************\
+|
+|    Copyright (C) 2012 CWI
+|    
+|    Contact:
+|    Marc Stevens
+|    Cryptology Group
+|    Centrum Wiskunde & Informatica
+|    P.O. Box 94079, 1090 GB Amsterdam, Netherlands
+|    marc@marc-stevens.nl
+|
+|  Permission is hereby granted, free of charge, to any person obtaining a copy
+|  of this software and associated documentation files (the "Software"), to deal
+|  in the Software without restriction, including without limitation the rights
+|  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+|  copies of the Software, and to permit persons to whom the Software is
+|  furnished to do so, subject to the following conditions:
+| 
+|  The above copyright notice and this permission notice shall be included in
+|  all copies or substantial portions of the Software.
+| 
+|  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+|  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+|  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+|  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+|  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+|  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+|  THE SOFTWARE.
+|
+\**************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libdetectcoll.h"
+
+int main(int argc, char** argv) {
+       FILE* fd;
+       unsigned char hash[16];
+       unsigned char hash2[20];
+       char buffer[65536];
+       unsigned size;
+       MD5_CTX ctx;
+       SHA1_CTX ctx2;
+       int i,j;
+
+       gen_sha1_dv_xm_tables();
+       if (argc < 2) {
+               printf("Usage: md5sum <file>\n");
+               return 1;
+       }
+       for (i=1; i < argc; ++i) {
+               fd = fopen(argv[i], "rb");
+               if (fd == NULL) {
+                       printf("cannot open file: %s\n", argv[i]);
+                       return 1;
+               }
+
+               MD5Init_unsafe(&ctx);
+               SHA1Init_unsafe(&ctx2);
+
+               while (1) {
+                       size=fread(buffer,1,65536,fd);
+                       MD5Update(&ctx, buffer, size);
+                       SHA1Update(&ctx2, buffer, size);
+                       if (size != 65536)
+                               break;
+               }
+               if (ferror(fd)) {
+                       printf("error while reading file: %s\n", argv[i]);
+                       return 1;
+               }
+               if (!feof(fd)) {
+                       printf("not end of file?: %s\n",argv[i]);
+                       return 1;
+               }
+
+               MD5Final(hash,&ctx);
+               for (j = 0; j < 16; ++j) 
+                       sprintf(buffer+(j*2), "%02x", hash[j]);
+               buffer[32] = 0;
+               if (ctx.found_collision) {
+                       printf("md5 *coll* %s %s\n", buffer, argv[i]);
+               } else {
+                       printf("md5 %s %s\n", buffer, argv[i]);
+               }
+
+               SHA1Final(hash2,&ctx2);
+               for (j = 0; j < 20; ++j) 
+                       sprintf(buffer+(j*2), "%02x", hash2[j]);
+               buffer[20*2] = 0;
+               if (ctx2.found_collision) {
+                       printf("sha1 *coll* %s %s\n", buffer, argv[i]);
+               } else {
+                       printf("sha1 %s %s\n", buffer, argv[i]);
+               }
+               printf("\n");
+
+               fclose(fd);
+       }
+}