Merge branch 'refs/heads/t/rm_rc4'
[paraslash.git] / gcrypt.c
index 0ba8d52..1fde479 100644 (file)
--- a/gcrypt.c
+++ b/gcrypt.c
@@ -617,33 +617,20 @@ struct stream_cipher {
        gcry_cipher_hd_t handle;
 };
 
-struct stream_cipher *sc_new(const unsigned char *data, int len,
-               bool use_aes)
+struct stream_cipher *sc_new(const unsigned char *data, int len)
 {
        gcry_error_t gret;
        struct stream_cipher *sc = para_malloc(sizeof(*sc));
 
-       if (use_aes) {
-               assert(len >= 2 * AES_CRT128_BLOCK_SIZE);
-               gret = gcry_cipher_open(&sc->handle, GCRY_CIPHER_AES128,
-                       GCRY_CIPHER_MODE_CTR, 0);
-               assert(gret == 0);
-               gret = gcry_cipher_setkey(sc->handle, data,
-                       AES_CRT128_BLOCK_SIZE);
-               assert(gret == 0);
-               gret = gcry_cipher_setctr(sc->handle,
-                       data + AES_CRT128_BLOCK_SIZE, AES_CRT128_BLOCK_SIZE);
-               assert(gret == 0);
-               return sc;
-       }
-       gret = gcry_cipher_open(&sc->handle, GCRY_CIPHER_ARCFOUR,
-               GCRY_CIPHER_MODE_STREAM, 0);
-       if (gret) {
-               PARA_ERROR_LOG("%s\n", gcrypt_strerror(gret));
-               free(sc);
-               return NULL;
-       }
-       gret = gcry_cipher_setkey(sc->handle, data, (size_t)len);
+       assert(len >= 2 * AES_CRT128_BLOCK_SIZE);
+       gret = gcry_cipher_open(&sc->handle, GCRY_CIPHER_AES128,
+               GCRY_CIPHER_MODE_CTR, 0);
+       assert(gret == 0);
+       gret = gcry_cipher_setkey(sc->handle, data,
+               AES_CRT128_BLOCK_SIZE);
+       assert(gret == 0);
+       gret = gcry_cipher_setctr(sc->handle,
+               data + AES_CRT128_BLOCK_SIZE, AES_CRT128_BLOCK_SIZE);
        assert(gret == 0);
        return sc;
 }