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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 */