iv needs to be const because it sometimes takes it's value from a
authorRichard Levitte <levitte@openssl.org>
Tue, 28 Dec 2004 10:35:13 +0000 (10:35 +0000)
committerRichard Levitte <levitte@openssl.org>
Tue, 28 Dec 2004 10:35:13 +0000 (10:35 +0000)
const.

crypto/aes/aes_cbc.c

index 41d538f..f909aaf 100644 (file)
@@ -65,7 +65,8 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 
        unsigned long n;
        unsigned long len = length;
-       unsigned char tmp[AES_BLOCK_SIZE], *iv = ivec;
+       unsigned char tmp[AES_BLOCK_SIZE];
+       const unsigned char *iv = ivec;
 
        assert(in && out && key && ivec);
        assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc));
@@ -87,7 +88,7 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
                                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) {
@@ -123,6 +124,6 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
                        for(n=0; n < len; ++n)
                                out[n] = tmp[n] ^ ivec[n];
                        memcpy(ivec, tmp, AES_BLOCK_SIZE);
-               }                       
+               }
        }
 }