Add cipher_crypt()
diff --git a/library/cipher.c b/library/cipher.c
index 0693301..daeea13 100644
--- a/library/cipher.c
+++ b/library/cipher.c
@@ -771,6 +771,34 @@
}
#endif /* POLARSSL_CIPHER_MODE_AEAD */
+/*
+ * Packet-oriented wrapper for non-AEAD modes
+ */
+int cipher_crypt( cipher_context_t *ctx,
+ const unsigned char *iv, size_t iv_len,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen )
+{
+ int ret;
+ size_t finish_olen;
+
+ if( ( ret = cipher_set_iv( ctx, iv, iv_len ) ) != 0 )
+ return( ret );
+
+ if( ( ret = cipher_reset( ctx ) ) != 0 )
+ return( ret );
+
+ if( ( ret = cipher_update( ctx, input, ilen, output, olen ) ) != 0 )
+ return( ret );
+
+ if( ( ret = cipher_finish( ctx, output + *olen, &finish_olen ) ) != 0 )
+ return( ret );
+
+ *olen += finish_olen;
+
+ return( 0 );
+}
+
#if defined(POLARSSL_SELF_TEST)
/*
