1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Common values for the Speck algorithm
 4 */
 5
 6#ifndef _CRYPTO_SPECK_H
 7#define _CRYPTO_SPECK_H
 8
 9#include <linux/types.h>
10
11/* Speck128 */
12
13#define SPECK128_BLOCK_SIZE	16
14
15#define SPECK128_128_KEY_SIZE	16
16#define SPECK128_128_NROUNDS	32
17
18#define SPECK128_192_KEY_SIZE	24
19#define SPECK128_192_NROUNDS	33
20
21#define SPECK128_256_KEY_SIZE	32
22#define SPECK128_256_NROUNDS	34
23
24struct speck128_tfm_ctx {
25	u64 round_keys[SPECK128_256_NROUNDS];
26	int nrounds;
27};
28
29void crypto_speck128_encrypt(const struct speck128_tfm_ctx *ctx,
30			     u8 *out, const u8 *in);
31
32void crypto_speck128_decrypt(const struct speck128_tfm_ctx *ctx,
33			     u8 *out, const u8 *in);
34
35int crypto_speck128_setkey(struct speck128_tfm_ctx *ctx, const u8 *key,
36			   unsigned int keysize);
37
38/* Speck64 */
39
40#define SPECK64_BLOCK_SIZE	8
41
42#define SPECK64_96_KEY_SIZE	12
43#define SPECK64_96_NROUNDS	26
44
45#define SPECK64_128_KEY_SIZE	16
46#define SPECK64_128_NROUNDS	27
47
48struct speck64_tfm_ctx {
49	u32 round_keys[SPECK64_128_NROUNDS];
50	int nrounds;
51};
52
53void crypto_speck64_encrypt(const struct speck64_tfm_ctx *ctx,
54			    u8 *out, const u8 *in);
55
56void crypto_speck64_decrypt(const struct speck64_tfm_ctx *ctx,
57			    u8 *out, const u8 *in);
58
59int crypto_speck64_setkey(struct speck64_tfm_ctx *ctx, const u8 *key,
60			  unsigned int keysize);
61
62#endif /* _CRYPTO_SPECK_H */