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3d5a7578 | 1 | /* |
8020d79b | 2 | * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved. |
3d5a7578 SL |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include "include/crypto/chacha.h" | |
11 | #include "prov/ciphercommon.h" | |
12 | ||
13 | typedef struct { | |
14 | PROV_CIPHER_CTX base; /* must be first */ | |
15 | union { | |
16 | OSSL_UNION_ALIGN; | |
17 | unsigned int d[CHACHA_KEY_SIZE / 4]; | |
18 | } key; | |
19 | unsigned int counter[CHACHA_CTR_SIZE / 4]; | |
20 | unsigned char buf[CHACHA_BLK_SIZE]; | |
21 | unsigned int partial_len; | |
22 | } PROV_CHACHA20_CTX; | |
23 | ||
24 | typedef struct prov_cipher_hw_chacha20_st { | |
25 | PROV_CIPHER_HW base; /* must be first */ | |
26 | int (*initiv)(PROV_CIPHER_CTX *ctx); | |
27 | ||
28 | } PROV_CIPHER_HW_CHACHA20; | |
29 | ||
7d6766cb | 30 | const PROV_CIPHER_HW *ossl_prov_cipher_hw_chacha20(size_t keybits); |
3d5a7578 | 31 | |
e36b3c2f SL |
32 | OSSL_FUNC_cipher_encrypt_init_fn ossl_chacha20_einit; |
33 | OSSL_FUNC_cipher_decrypt_init_fn ossl_chacha20_dinit; | |
34 | void ossl_chacha20_initctx(PROV_CHACHA20_CTX *ctx); |