mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 04:03:58 +08:00
2546f811ef
As architecture specific drivers need a software fallback, export Poly1305 init/update/final functions together with some helpers in a header file. Signed-off-by: Martin Willi <martin@strongswan.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
42 lines
977 B
C
42 lines
977 B
C
/*
|
|
* Common values for the Poly1305 algorithm
|
|
*/
|
|
|
|
#ifndef _CRYPTO_POLY1305_H
|
|
#define _CRYPTO_POLY1305_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/crypto.h>
|
|
|
|
#define POLY1305_BLOCK_SIZE 16
|
|
#define POLY1305_KEY_SIZE 32
|
|
#define POLY1305_DIGEST_SIZE 16
|
|
|
|
struct poly1305_desc_ctx {
|
|
/* key */
|
|
u32 r[5];
|
|
/* finalize key */
|
|
u32 s[4];
|
|
/* accumulator */
|
|
u32 h[5];
|
|
/* partial buffer */
|
|
u8 buf[POLY1305_BLOCK_SIZE];
|
|
/* bytes used in partial buffer */
|
|
unsigned int buflen;
|
|
/* r key has been set */
|
|
bool rset;
|
|
/* s key has been set */
|
|
bool sset;
|
|
};
|
|
|
|
int crypto_poly1305_init(struct shash_desc *desc);
|
|
int crypto_poly1305_setkey(struct crypto_shash *tfm,
|
|
const u8 *key, unsigned int keylen);
|
|
unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
|
|
const u8 *src, unsigned int srclen);
|
|
int crypto_poly1305_update(struct shash_desc *desc,
|
|
const u8 *src, unsigned int srclen);
|
|
int crypto_poly1305_final(struct shash_desc *desc, u8 *dst);
|
|
|
|
#endif
|