summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/crypto/camellia.h
blob: 98038add801e3ad1123d43117b2b2aa8ed7f95c3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
#ifndef ASM_X86_CAMELLIA_H
#define ASM_X86_CAMELLIA_H

#include <linux/kernel.h>
#include <linux/crypto.h>

#define CAMELLIA_MIN_KEY_SIZE	16
#define CAMELLIA_MAX_KEY_SIZE	32
#define CAMELLIA_BLOCK_SIZE	16
#define CAMELLIA_TABLE_BYTE_LEN	272
#define CAMELLIA_PARALLEL_BLOCKS 2

struct camellia_ctx {
	u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
	u32 key_length;
};

struct camellia_lrw_ctx {
	struct lrw_table_ctx lrw_table;
	struct camellia_ctx camellia_ctx;
};

struct camellia_xts_ctx {
	struct camellia_ctx tweak_ctx;
	struct camellia_ctx crypt_ctx;
};

extern int __camellia_setkey(struct camellia_ctx *cctx,
			     const unsigned char *key,
			     unsigned int key_len, u32 *flags);

extern int lrw_camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
			       unsigned int keylen);
extern void lrw_camellia_exit_tfm(struct crypto_tfm *tfm);

extern int xts_camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
			       unsigned int keylen);

/* regular block cipher functions */
asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
				   const u8 *src, bool xor);
asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
				 const u8 *src);

/* 2-way parallel cipher functions */
asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
					const u8 *src, bool xor);
asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
				      const u8 *src);

static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
				    const u8 *src)
{
	__camellia_enc_blk(ctx, dst, src, false);
}

static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst,
					const u8 *src)
{
	__camellia_enc_blk(ctx, dst, src, true);
}

static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
					 const u8 *src)
{
	__camellia_enc_blk_2way(ctx, dst, src, false);
}

static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst,
					     const u8 *src)
{
	__camellia_enc_blk_2way(ctx, dst, src, true);
}

/* glue helpers */
extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
			       le128 *iv);
extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
				    le128 *iv);

#endif /* ASM_X86_CAMELLIA_H */