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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
/* Declarations for SLOTHY-optimized AES-GCM assembly kernels (AArch64).
*
* These kernels perform combined AES-CTR encryption/decryption and GHASH
* authentication in a single pass over the data. They process full 16-byte
* blocks only; partial block handling must be done by the caller.
*
* All kernels share the same calling convention:
* x0 (in) - input data pointer
* x1 (in_bits) - input length in BITS (not bytes)
* x2 (out) - output data pointer
* x3 (Xi) - GHASH accumulator (16 bytes, read/write)
* x4 (ivec) - AES-CTR counter (16 bytes, read/write)
* x5 (key) - AES round key schedule (PRUint32[] from AESContext.k)
* x6 (Htable) - Precomputed H-power table (12 entries, 192 bytes)
*
* The Htable layout (produced by gcm_init_htable) stores H^1..H^8 with
* Karatsuba precomputation in the OpenSSL/aws-lc byte-order convention
* (rev64, NOT vrbit).
*
* Derived from aws-lc (hanno-becker/aws-lc, branch aarch64_aes_gcm_slothy).
* Original code by Fangming Fang (ARM/OpenSSL), Samuel Lee (AArch64cryptolib),
* and Hanno Becker (SLOTHY optimization).
*/
#ifndef AARCH64_GCM_SLOTHY_H
#define AARCH64_GCM_SLOTHY_H
#include <stdint.h>
void aes_gcm_enc_kernel_slothy_base_128(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
void aes_gcm_enc_kernel_slothy_base_192(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
void aes_gcm_enc_kernel_slothy_base_256(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
void aes_gcm_dec_kernel_slothy_base_128(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
void aes_gcm_dec_kernel_slothy_base_192(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
void aes_gcm_dec_kernel_slothy_base_256(const uint8_t *in, uint64_t in_bits,
void *out, void *Xi,
uint8_t *ivec, const void *key,
const void *Htable);
#endif /* AARCH64_GCM_SLOTHY_H */