Engage crypto/modes.

1 files changed, 5 insertions, 72 deletions

diff --git a/crypto/aes/aes_cbc.c b/crypto/aes/aes_cbc.c
index 5ce614570f..2ae0f4a365 100644
--- a/crypto/aes/aes_cbc.c
+++ b/crypto/aes/aes_cbc.c
@@ -49,82 +49,15 @@
  *
  */
 
-#ifndef AES_DEBUG
-# ifndef NDEBUG
-#  define NDEBUG
-# endif
-#endif
-#include <assert.h>
-
 #include <openssl/aes.h>
-#include "aes_locl.h"
+#include <openssl/modes.h>
 
 void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 		     size_t len, const AES_KEY *key,
 		     unsigned char *ivec, const int enc) {
 
-	size_t n;
-	unsigned char tmp[AES_BLOCK_SIZE];
-	const unsigned char *iv = ivec;
-
-	assert(in && out && key && ivec);
-	assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc));
-
-	if (AES_ENCRYPT == enc) {
-		while (len >= AES_BLOCK_SIZE) {
-			for(n=0; n < AES_BLOCK_SIZE; ++n)
-				out[n] = in[n] ^ iv[n];
-			AES_encrypt(out, out, key);
-			iv = out;
-			len -= AES_BLOCK_SIZE;
-			in += AES_BLOCK_SIZE;
-			out += AES_BLOCK_SIZE;
-		}
-		if (len) {
-			for(n=0; n < len; ++n)
-				out[n] = in[n] ^ iv[n];
-			for(n=len; n < AES_BLOCK_SIZE; ++n)
-				out[n] = iv[n];
-			AES_encrypt(out, out, key);
-			iv = out;
-		}
-		memcpy(ivec,iv,AES_BLOCK_SIZE);
-	} else if (in != out) {
-		while (len >= AES_BLOCK_SIZE) {
-			AES_decrypt(in, out, key);
-			for(n=0; n < AES_BLOCK_SIZE; ++n)
-				out[n] ^= iv[n];
-			iv = in;
-			len -= AES_BLOCK_SIZE;
-			in  += AES_BLOCK_SIZE;
-			out += AES_BLOCK_SIZE;
-		}
-		if (len) {
-			AES_decrypt(in,tmp,key);
-			for(n=0; n < len; ++n)
-				out[n] = tmp[n] ^ iv[n];
-			iv = in;
-		}
-		memcpy(ivec,iv,AES_BLOCK_SIZE);
-	} else {
-		while (len >= AES_BLOCK_SIZE) {
-			memcpy(tmp, in, AES_BLOCK_SIZE);
-			AES_decrypt(in, out, key);
-			for(n=0; n < AES_BLOCK_SIZE; ++n)
-				out[n] ^= ivec[n];
-			memcpy(ivec, tmp, AES_BLOCK_SIZE);
-			len -= AES_BLOCK_SIZE;
-			in += AES_BLOCK_SIZE;
-			out += AES_BLOCK_SIZE;
-		}
-		if (len) {
-			memcpy(tmp, in, AES_BLOCK_SIZE);
-			AES_decrypt(tmp, out, key);
-			for(n=0; n < len; ++n)
-				out[n] ^= ivec[n];
-			for(n=len; n < AES_BLOCK_SIZE; ++n)
-				out[n] = tmp[n];
-			memcpy(ivec, tmp, AES_BLOCK_SIZE);
-		}
-	}
+	if (enc)
+		CRYPTO_cbc128_encrypt(in,out,len,key,ivec,(block_f)AES_encrypt);
+	else
+		CRYPTO_cbc128_decrypt(in,out,len,key,ivec,(block_f)AES_decrypt);
 }