/* key must be 256bit (32 byte) large! */
-void serpent_init(const void* key, uint16_t keysize, serpent_ctx_t* ctx);
+void serpent_init(const void* key, uint16_t keysize_b, serpent_ctx_t* ctx);
void serpent_enc(void* buffer, const serpent_ctx_t* ctx);
void serpent_dec(void* buffer, const serpent_ctx_t* ctx);