--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/hashsum.c	Mon May 31 18:21:40 2004 +0000
@@ -0,0 +1,106 @@
+/*
+ * Written by Daniel Richards <[email protected]> 6/7/2002
+ * hash.c: This app uses libtomcrypt to hash either stdin or a file
+ * This file is Public Domain. No rights are reserved.
+ * Compile with 'gcc hashsum.c -o hashsum -ltomcrypt'
+ * This example isn't really big enough to warrent splitting into
+ * more functions ;)
+*/
+
+#include <mycrypt_custom.h>
+
+int errno;
+
+void register_algs();
+
+int main(int argc, char **argv)
+{
+   int idx, x, z;
+   unsigned long w;
+   unsigned char hash_buffer[MAXBLOCKSIZE];
+   hash_state md;
+
+   /* You need to register algorithms before using them */
+   register_algs();
+   if (argc < 2) {
+      printf("usage: ./hash algorithm file [file ...]\n");
+      printf("Algorithms:\n");
+      for (x = 0; hash_descriptor[x].name != NULL; x++) {
+         printf(" %s\n", hash_descriptor[x].name);
+      }
+      exit(EXIT_SUCCESS);
+   }
+
+   idx = find_hash(argv[1]);
+   if (idx == -1) {
+      fprintf(stderr, "\nInvalid hash specified on command line.\n");
+      return -1;
+   }
+
+   if (argc == 2) {
+      hash_descriptor[idx].init(&md);
+      do {
+         x = fread(hash_buffer, 1, sizeof(hash_buffer), stdin);
+         hash_descriptor[idx].process(&md, hash_buffer, x);
+      } while (x == sizeof(hash_buffer));
+      hash_descriptor[idx].done(&md, hash_buffer);
+      for (x = 0; x < (int)hash_descriptor[idx].hashsize; x++) {
+          printf("%02x",hash_buffer[x]);
+      }
+      printf("  (stdin)\n");
+   } else {
+      for (z = 2; z < argc; z++) {
+         w = sizeof(hash_buffer);
+         if ((errno = hash_file(idx,argv[z],hash_buffer,&w)) != CRYPT_OK) {
+            printf("File hash error: %s\n", error_to_string(errno));
+         } else {
+             for (x = 0; x < (int)hash_descriptor[idx].hashsize; x++) {
+                 printf("%02x",hash_buffer[x]);
+             }
+             printf("  %s\n", argv[z]);
+         }
+      }
+   }
+   return EXIT_SUCCESS;
+}
+
+void register_algs(void)
+{
+#ifdef TIGER
+  register_hash (&tiger_desc);
+#endif
+#ifdef MD2
+  register_hash (&md2_desc);
+#endif
+#ifdef MD4
+  register_hash (&md4_desc);
+#endif
+#ifdef MD5
+  register_hash (&md5_desc);
+#endif
+#ifdef SHA1
+  register_hash (&sha1_desc);
+#endif
+#ifdef SHA224
+  register_hash (&sha224_desc);
+#endif
+#ifdef SHA256
+  register_hash (&sha256_desc);
+#endif
+#ifdef SHA384
+  register_hash (&sha384_desc);
+#endif
+#ifdef SHA512
+  register_hash (&sha512_desc);
+#endif
+#ifdef RIPEMD128
+  register_hash (&rmd128_desc);
+#endif
+#ifdef RIPEMD160
+  register_hash (&rmd160_desc);
+#endif
+#ifdef WHIRLPOOL
+  register_hash (&whirlpool_desc);
+#endif
+
+}