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/*! \file kasumi.h
* KASUMI header.
*
* See kasumi.c for details
* The parameters are described in TS 135 202.
*/
#pragma once
#include <stdint.h>
/*! Single iteration of KASUMI cipher
* \param[in] P Block, 64 bits to be processed in this round
* \param[in] KLi1 Expanded subkeys
* \param[in] KLi2 Expanded subkeys
* \param[in] KOi1 Expanded subkeys
* \param[in] KOi2 Expanded subkeys
* \param[in] KOi3 Expanded subkeys
* \param[in] KIi1 Expanded subkeys
* \param[in] KIi2 Expanded subkeys
* \param[in] KIi3 Expanded subkeys
* \returns processed block of 64 bits
*/
uint64_t _kasumi(uint64_t P, const uint16_t *KLi1, const uint16_t *KLi2, const uint16_t *KOi1, const uint16_t *KOi2, const uint16_t *KOi3, const uint16_t *KIi1, const uint16_t *KIi2, const uint16_t *KIi3);
/*! Implementation of the KGCORE algorithm (used by A5/3, A5/4, GEA3, GEA4 and ECSD)
* \param[in] CA
* \param[in] cb
* \param[in] cc
* \param[in] cd
* \param[in] ck 8-bytes long key
* \param[out] co cl-dependent
* \param[in] cl
*/
void _kasumi_kgcore(uint8_t CA, uint8_t cb, uint32_t cc, uint8_t cd, const uint8_t *ck, uint8_t *co, uint16_t cl);
/*! Expand key into set of subkeys - see TS 135 202 for details
* \param[in] key (128 bits) as array of bytes
* \param[out] KLi1 Expanded subkeys
* \param[out] KLi2 Expanded subkeys
* \param[out] KOi1 Expanded subkeys
* \param[out] KOi2 Expanded subkeys
* \param[out] KOi3 Expanded subkeys
* \param[out] KIi1 Expanded subkeys
* \param[out] KIi2 Expanded subkeys
* \param[out] KIi3 Expanded subkeys
*/
void _kasumi_key_expand(const uint8_t *key, uint16_t *KLi1, uint16_t *KLi2, uint16_t *KOi1, uint16_t *KOi2, uint16_t *KOi3, uint16_t *KIi1, uint16_t *KIi2, uint16_t *KIi3);
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