--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ocb_test.c	Mon May 31 18:25:41 2004 +0000
@@ -0,0 +1,226 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, [email protected], http://libtomcrypt.org
+ */
+
+/* OCB Implementation by Tom St Denis */
+#include "mycrypt.h"
+
+#ifdef OCB_MODE
+
+int ocb_test(void)
+{
+#ifndef LTC_TEST
+   return CRYPT_NOP;
+#else
+   static const struct {
+         int ptlen;
+         unsigned char key[16], nonce[16], pt[34], ct[34], tag[16];
+   } tests[] = {
+
+   /* OCB-AES-128-0B */
+{
+   0,
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0 },
+   /* ct */
+   { 0 },
+   /* tag */
+   { 0x15, 0xd3, 0x7d, 0xd7, 0xc8, 0x90, 0xd5, 0xd6,
+     0xac, 0xab, 0x92, 0x7b, 0xc0, 0xdc, 0x60, 0xee },
+},
+
+
+   /* OCB-AES-128-3B */
+{
+   3, 
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0x00, 0x01, 0x02 },
+   /* ct */
+   { 0xfc, 0xd3, 0x7d },
+   /* tag */
+   { 0x02, 0x25, 0x47, 0x39, 0xa5, 0xe3, 0x56, 0x5a,
+     0xe2, 0xdc, 0xd6, 0x2c, 0x65, 0x97, 0x46, 0xba },
+},
+
+   /* OCB-AES-128-16B */
+{
+   16, 
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* ct */
+   { 0x37, 0xdf, 0x8c, 0xe1, 0x5b, 0x48, 0x9b, 0xf3,
+     0x1d, 0x0f, 0xc4, 0x4d, 0xa1, 0xfa, 0xf6, 0xd6 },
+   /* tag */
+   { 0xdf, 0xb7, 0x63, 0xeb, 0xdb, 0x5f, 0x0e, 0x71,
+     0x9c, 0x7b, 0x41, 0x61, 0x80, 0x80, 0x04, 0xdf },
+},
+
+   /* OCB-AES-128-20B  */
+{
+   20, 
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 
+     0x10, 0x11, 0x12, 0x13 },
+   /* ct */
+   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
+     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
+     0x70, 0x03, 0xeb, 0x55},
+   /* tag */
+   { 0x75, 0x30, 0x84, 0x14, 0x4e, 0xb6, 0x3b, 0x77,
+     0x0b, 0x06, 0x3c, 0x2e, 0x23, 0xcd, 0xa0, 0xbb },
+},
+
+   /* OCB-AES-128-32B  */
+{
+   32, 
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 
+     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+   /* ct */
+   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
+     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
+     0x4a, 0xfc, 0xbb, 0x7f, 0xed, 0xc0, 0x8c, 0xa8,
+     0x65, 0x4c, 0x6d, 0x30, 0x4d, 0x16, 0x12, 0xfa },
+
+   /* tag */
+   { 0xc1, 0x4c, 0xbf, 0x2c, 0x1a, 0x1f, 0x1c, 0x3c,
+     0x13, 0x7e, 0xad, 0xea, 0x1f, 0x2f, 0x2f, 0xcf },
+},
+
+   /* OCB-AES-128-34B  */
+{
+   34, 
+   /* key */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f },
+   /* nonce */
+   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+   /* pt */
+   { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+     0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 
+     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+     0x20, 0x21 },
+   /* ct */
+   { 0x01, 0xa0, 0x75, 0xf0, 0xd8, 0x15, 0xb1, 0xa4,
+     0xe9, 0xc8, 0x81, 0xa1, 0xbc, 0xff, 0xc3, 0xeb,
+     0xd4, 0x90, 0x3d, 0xd0, 0x02, 0x5b, 0xa4, 0xaa,
+     0x83, 0x7c, 0x74, 0xf1, 0x21, 0xb0, 0x26, 0x0f,
+     0xa9, 0x5d },
+
+   /* tag */
+   { 0xcf, 0x83, 0x41, 0xbb, 0x10, 0x82, 0x0c, 0xcf,
+     0x14, 0xbd, 0xec, 0x56, 0xb8, 0xd7, 0xd6, 0xab },
+},
+
+};
+
+   int err, x, idx, res;
+   unsigned long len;
+   unsigned char outct[MAXBLOCKSIZE], outtag[MAXBLOCKSIZE];
+
+    /* AES can be under rijndael or aes... try to find it */ 
+    if ((idx = find_cipher("aes")) == -1) {
+       if ((idx = find_cipher("rijndael")) == -1) {
+          return CRYPT_NOP;
+       }
+    }
+
+    for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
+        len = sizeof(outtag);
+        if ((err = ocb_encrypt_authenticate_memory(idx, tests[x].key, 16,
+             tests[x].nonce, tests[x].pt, tests[x].ptlen, outct, outtag, &len)) != CRYPT_OK) {
+           return err;
+        }
+        
+        if (memcmp(outtag, tests[x].tag, len) || memcmp(outct, tests[x].ct, tests[x].ptlen)) {
+#if 0
+           unsigned long y;
+           printf("\n\nFailure: \nCT:\n");
+           for (y = 0; y < (unsigned long)tests[x].ptlen; ) {
+               printf("0x%02x", outct[y]);
+               if (y < (unsigned long)(tests[x].ptlen-1)) printf(", ");
+               if (!(++y % 8)) printf("\n");
+           }
+           printf("\nTAG:\n");
+           for (y = 0; y < len; ) {
+               printf("0x%02x", outtag[y]);
+               if (y < len-1) printf(", ");
+               if (!(++y % 8)) printf("\n");
+           }
+#endif
+           return CRYPT_FAIL_TESTVECTOR;
+        }
+        
+        if ((err = ocb_decrypt_verify_memory(idx, tests[x].key, 16, tests[x].nonce, outct, tests[x].ptlen,
+             outct, tests[x].tag, len, &res)) != CRYPT_OK) {
+           return err;
+        }
+        if ((res != 1) || memcmp(tests[x].pt, outct, tests[x].ptlen)) {
+#if 0
+           unsigned long y;
+           printf("\n\nFailure-decrypt: \nPT:\n");
+           for (y = 0; y < (unsigned long)tests[x].ptlen; ) {
+               printf("0x%02x", outct[y]);
+               if (y < (unsigned long)(tests[x].ptlen-1)) printf(", ");
+               if (!(++y % 8)) printf("\n");
+           }
+           printf("\nres = %d\n\n", res);
+#endif
+        }
+    }
+    return CRYPT_OK;
+#endif /* LTC_TEST */
+}
+
+#endif /* OCB_MODE */
+
+
+/* some comments
+
+   -- it's hard to seek
+   -- hard to stream [you can't emit ciphertext until full block]
+   -- The setup is somewhat complicated...
+*/