| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Common values for the ChaCha20 algorithm | |
| */ | |
| #ifndef _CRYPTO_CHACHA20_H | |
| #define _CRYPTO_CHACHA20_H | |
| #include <crypto/skcipher.h> | |
| #include <linux/types.h> | |
| #include <linux/crypto.h> | |
| #define CHACHA20_IV_SIZE 16 | |
| #define CHACHA20_KEY_SIZE 32 | |
| #define CHACHA20_BLOCK_SIZE 64 | |
| struct chacha20_ctx { | |
| u32 key[8]; | |
| }; | |
| void chacha20_block(u32 *state, void *stream); | |
| void crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv); | |
| int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key, | |
| unsigned int keysize); | |
| int crypto_chacha20_crypt(struct skcipher_request *req); | |
| #endif |