--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modes_test.c	Tue Jun 15 14:07:21 2004 +0000
@@ -0,0 +1,46 @@
+/* test CFB/OFB/CBC modes */
+#include "test.h"
+
+int modes_test(void)
+{
+   unsigned char pt[64], ct[64], tmp[64], key[16], iv[16];
+   int x, cipher_idx;
+   symmetric_CBC cbc;
+   
+   /* make a random pt, key and iv */
+   yarrow_read(pt, 64,  &test_yarrow);
+   yarrow_read(key, 16, &test_yarrow);
+   yarrow_read(iv, 16,  &test_yarrow);
+   
+/* test CBC mode */
+   cipher_idx = find_cipher("aes");
+   if (cipher_idx == -1) {
+      printf("test requires AES");
+      return 1;
+   }
+   
+   
+   /* encode the block */
+   DO(cbc_start(cipher_idx, iv, key, 16, 0, &cbc));
+   for (x = 0; x < 4; x++) {
+      DO(cbc_encrypt(pt+x*16, ct+x*16, &cbc));
+   }
+   
+   /* decode the block */
+   DO(cbc_start(cipher_idx, iv, key, 16, 0, &cbc));
+   for (x = 0; x < 4; x++) {
+      DO(cbc_decrypt(ct+x*16, tmp+x*16, &cbc));
+   }
+   if (memcmp(tmp, pt, 64) != 0) {
+      printf("CBC failed");
+      return 1;
+   }
+   
+/*   
+   extern int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key,
+                     int keylen, int num_rounds, symmetric_CBC *cbc);
+extern int cbc_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_CBC *cbc);
+extern int cbc_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_CBC *cbc);
+*/
+
+}