/* | |
* Common values for the ChaCha20 algorithm | |
*/ | |
#ifndef _CRYPTO_CHACHA20_H | |
#define _CRYPTO_CHACHA20_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 crypto_chacha20_init(u32 *state, struct chacha20_ctx *ctx, u8 *iv); | |
int crypto_chacha20_setkey(struct crypto_tfm *tfm, const u8 *key, | |
unsigned int keysize); | |
int crypto_chacha20_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
struct scatterlist *src, unsigned int nbytes); | |
#endif |