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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
31d7247d MW |
2 | /* |
3 | * Common values for the ChaCha20 algorithm | |
4 | */ | |
5 | ||
6 | #ifndef _CRYPTO_CHACHA20_H | |
7 | #define _CRYPTO_CHACHA20_H | |
8 | ||
9ae433bc | 9 | #include <crypto/skcipher.h> |
31d7247d MW |
10 | #include <linux/types.h> |
11 | #include <linux/crypto.h> | |
12 | ||
13 | #define CHACHA20_IV_SIZE 16 | |
14 | #define CHACHA20_KEY_SIZE 32 | |
15 | #define CHACHA20_BLOCK_SIZE 64 | |
16 | ||
17 | struct chacha20_ctx { | |
18 | u32 key[8]; | |
19 | }; | |
20 | ||
e192be9d | 21 | void chacha20_block(u32 *state, void *stream); |
31d7247d | 22 | void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv); |
9ae433bc | 23 | int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key, |
31d7247d | 24 | unsigned int keysize); |
9ae433bc | 25 | int crypto_chacha20_crypt(struct skcipher_request *req); |
31d7247d MW |
26 | |
27 | #endif |