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/*
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "include/crypto/chacha.h"
#include "prov/ciphercommon.h"
typedef struct {
PROV_CIPHER_CTX base; /* must be first */
union {
OSSL_UNION_ALIGN;
unsigned int d[CHACHA_KEY_SIZE / 4];
} key;
unsigned int counter[CHACHA_CTR_SIZE / 4];
unsigned char buf[CHACHA_BLK_SIZE];
unsigned int partial_len;
} PROV_CHACHA20_CTX;
typedef struct prov_cipher_hw_chacha20_st {
PROV_CIPHER_HW base; /* must be first */
int (*initiv)(PROV_CIPHER_CTX *ctx);
} PROV_CIPHER_HW_CHACHA20;
const PROV_CIPHER_HW *PROV_CIPHER_HW_chacha20(size_t keybits);
OSSL_FUNC_cipher_encrypt_init_fn chacha20_einit;
OSSL_FUNC_cipher_decrypt_init_fn chacha20_dinit;
void chacha20_initctx(PROV_CHACHA20_CTX *ctx);
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