mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 00:34:10 +08:00
18fbe0da8e
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* DES & Triple DES EDE Cipher Algorithms.
|
|
*/
|
|
|
|
#ifndef __CRYPTO_DES_H
|
|
#define __CRYPTO_DES_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define DES_KEY_SIZE 8
|
|
#define DES_EXPKEY_WORDS 32
|
|
#define DES_BLOCK_SIZE 8
|
|
|
|
#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
|
|
#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
|
|
#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
|
|
|
|
struct des_ctx {
|
|
u32 expkey[DES_EXPKEY_WORDS];
|
|
};
|
|
|
|
struct des3_ede_ctx {
|
|
u32 expkey[DES3_EDE_EXPKEY_WORDS];
|
|
};
|
|
|
|
void des_encrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
|
|
void des_decrypt(const struct des_ctx *ctx, u8 *dst, const u8 *src);
|
|
|
|
void des3_ede_encrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
|
|
void des3_ede_decrypt(const struct des3_ede_ctx *dctx, u8 *dst, const u8 *src);
|
|
|
|
/**
|
|
* des_expand_key - Expand a DES input key into a key schedule
|
|
* @ctx: the key schedule
|
|
* @key: buffer containing the input key
|
|
* @len: size of the buffer contents
|
|
*
|
|
* Returns 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
|
|
* the key is accepted but has been found to be weak.
|
|
*/
|
|
int des_expand_key(struct des_ctx *ctx, const u8 *key, unsigned int keylen);
|
|
|
|
/**
|
|
* des3_ede_expand_key - Expand a triple DES input key into a key schedule
|
|
* @ctx: the key schedule
|
|
* @key: buffer containing the input key
|
|
* @len: size of the buffer contents
|
|
*
|
|
* Returns 0 on success, -EINVAL if the input key is rejected and -ENOKEY if
|
|
* the key is accepted but has been found to be weak. Note that weak keys will
|
|
* be rejected (and -EINVAL will be returned) when running in FIPS mode.
|
|
*/
|
|
int des3_ede_expand_key(struct des3_ede_ctx *ctx, const u8 *key,
|
|
unsigned int keylen);
|
|
|
|
#endif /* __CRYPTO_DES_H */
|