diff --git a/lib/cipher/cryb_aes.c b/lib/cipher/cryb_aes.c
index 2a72472..c642489 100644
--- a/lib/cipher/cryb_aes.c
+++ b/lib/cipher/cryb_aes.c
@@ -585,18 +585,6 @@ aes_init(aes_ctx *ctx, cipher_mode mode, const uint8_t *key, size_t keylen)
 		aes_setkey_enc(ctx, key, keylen);
 }
 
-
-void
-aes_update(aes_ctx *ctx, const void *in, size_t len, void *out)
-{
-
-	(void)len;
-	if (ctx->mode == CIPHER_MODE_DECRYPT)
-		aes_dec(ctx, in, out);
-	else
-		aes_enc(ctx, in, out);
-}
-
 size_t
 aes_encrypt(aes_ctx *ctx, const void *vpt, uint8_t *ct, size_t len)
 {
diff --git a/lib/cipher/cryb_rc4.c b/lib/cipher/cryb_rc4.c
index 5dc7181..3a170cb 100644
--- a/lib/cipher/cryb_rc4.c
+++ b/lib/cipher/cryb_rc4.c
@@ -95,10 +95,10 @@ rc4_encrypt(rc4_ctx *ctx, const void *vpt, uint8_t *ct, size_t len)
 }
 
 size_t
-rc4_decrypt(rc4_ctx *ctx, const uint8_t *in, void *out, size_t len)
+rc4_decrypt(rc4_ctx *ctx, const uint8_t *ct, void *vpt, size_t len)
 {
 
-	return (rc4_encrypt(ctx, in, out, len));
+	return (rc4_encrypt(ctx, ct, vpt, len));
 }
 
 void
diff --git a/t/t_aes.c b/t/t_aes.c
index 2ba4f8d..a20adcb 100644
--- a/t/t_aes.c
+++ b/t/t_aes.c
@@ -49,6 +49,7 @@ struct t_case {
 /***************************************************************************
  * Test cases
  */
+
 static struct t_case t_cases[] = {
 	/* FIPS-197 test vectors */
 	{
@@ -107,6 +108,7 @@ static struct t_case t_cases[] = {
 /***************************************************************************
  * Test functions
  */
+
 static int
 t_aes_enc(char **desc, void *arg)
 {
diff --git a/t/t_rc4.c b/t/t_rc4.c
index d6788a4..bce9e47 100644
--- a/t/t_rc4.c
+++ b/t/t_rc4.c
@@ -51,6 +51,7 @@ struct t_case {
 /***************************************************************************
  * Test cases
  */
+
 static struct t_case t_cases[] = {
 	/* test vectors from RFC 6229 */
 	{
@@ -1962,6 +1963,7 @@ static struct t_case t_cases[] = {
 /***************************************************************************
  * Test functions
  */
+
 static int
 t_rc4(char **desc CRYB_UNUSED, void *arg)
 {