uint8_t scal_cipher_init(const scdesc_t* cipher_descriptor,
const void* key, uint16_t keysize_b,
const void* iv, uint16_t ivsize_b, scgen_ctx_t* ctx){
uint8_t scal_cipher_init(const scdesc_t* cipher_descriptor,
const void* key, uint16_t keysize_b,
const void* iv, uint16_t ivsize_b, scgen_ctx_t* ctx){