xref: /openbsd-src/lib/libcrypto/modes/modes.h (revision 91f110e064cd7c194e59e019b83bb7496c1c84d4)
1 /* ====================================================================
2  * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
3  *
4  * Rights for redistribution and usage in source and binary
5  * forms are granted according to the OpenSSL license.
6  */
7 
8 #include <stddef.h>
9 
10 typedef void (*block128_f)(const unsigned char in[16],
11 			unsigned char out[16],
12 			const void *key);
13 
14 typedef void (*cbc128_f)(const unsigned char *in, unsigned char *out,
15 			size_t len, const void *key,
16 			unsigned char ivec[16], int enc);
17 
18 typedef void (*ctr128_f)(const unsigned char *in, unsigned char *out,
19 			size_t blocks, const void *key,
20 			const unsigned char ivec[16]);
21 
22 typedef void (*ccm128_f)(const unsigned char *in, unsigned char *out,
23 			size_t blocks, const void *key,
24 			const unsigned char ivec[16],unsigned char cmac[16]);
25 
26 void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out,
27 			size_t len, const void *key,
28 			unsigned char ivec[16], block128_f block);
29 void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
30 			size_t len, const void *key,
31 			unsigned char ivec[16], block128_f block);
32 
33 void CRYPTO_ctr128_encrypt(const unsigned char *in, unsigned char *out,
34 			size_t len, const void *key,
35 			unsigned char ivec[16], unsigned char ecount_buf[16],
36 			unsigned int *num, block128_f block);
37 
38 void CRYPTO_ctr128_encrypt_ctr32(const unsigned char *in, unsigned char *out,
39 			size_t len, const void *key,
40 			unsigned char ivec[16], unsigned char ecount_buf[16],
41 			unsigned int *num, ctr128_f ctr);
42 
43 void CRYPTO_ofb128_encrypt(const unsigned char *in, unsigned char *out,
44 			size_t len, const void *key,
45 			unsigned char ivec[16], int *num,
46 			block128_f block);
47 
48 void CRYPTO_cfb128_encrypt(const unsigned char *in, unsigned char *out,
49 			size_t len, const void *key,
50 			unsigned char ivec[16], int *num,
51 			int enc, block128_f block);
52 void CRYPTO_cfb128_8_encrypt(const unsigned char *in, unsigned char *out,
53 			size_t length, const void *key,
54 			unsigned char ivec[16], int *num,
55 			int enc, block128_f block);
56 void CRYPTO_cfb128_1_encrypt(const unsigned char *in, unsigned char *out,
57 			size_t bits, const void *key,
58 			unsigned char ivec[16], int *num,
59 			int enc, block128_f block);
60 
61 size_t CRYPTO_cts128_encrypt_block(const unsigned char *in, unsigned char *out,
62 			size_t len, const void *key,
63 			unsigned char ivec[16], block128_f block);
64 size_t CRYPTO_cts128_encrypt(const unsigned char *in, unsigned char *out,
65 			size_t len, const void *key,
66 			unsigned char ivec[16], cbc128_f cbc);
67 size_t CRYPTO_cts128_decrypt_block(const unsigned char *in, unsigned char *out,
68 			size_t len, const void *key,
69 			unsigned char ivec[16], block128_f block);
70 size_t CRYPTO_cts128_decrypt(const unsigned char *in, unsigned char *out,
71 			size_t len, const void *key,
72 			unsigned char ivec[16], cbc128_f cbc);
73 
74 size_t CRYPTO_nistcts128_encrypt_block(const unsigned char *in, unsigned char *out,
75 			size_t len, const void *key,
76 			unsigned char ivec[16], block128_f block);
77 size_t CRYPTO_nistcts128_encrypt(const unsigned char *in, unsigned char *out,
78 			size_t len, const void *key,
79 			unsigned char ivec[16], cbc128_f cbc);
80 size_t CRYPTO_nistcts128_decrypt_block(const unsigned char *in, unsigned char *out,
81 			size_t len, const void *key,
82 			unsigned char ivec[16], block128_f block);
83 size_t CRYPTO_nistcts128_decrypt(const unsigned char *in, unsigned char *out,
84 			size_t len, const void *key,
85 			unsigned char ivec[16], cbc128_f cbc);
86 
87 typedef struct gcm128_context GCM128_CONTEXT;
88 
89 GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block);
90 void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx,void *key,block128_f block);
91 void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const unsigned char *iv,
92 			size_t len);
93 int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const unsigned char *aad,
94 			size_t len);
95 int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx,
96 			const unsigned char *in, unsigned char *out,
97 			size_t len);
98 int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx,
99 			const unsigned char *in, unsigned char *out,
100 			size_t len);
101 int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx,
102 			const unsigned char *in, unsigned char *out,
103 			size_t len, ctr128_f stream);
104 int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx,
105 			const unsigned char *in, unsigned char *out,
106 			size_t len, ctr128_f stream);
107 int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx,const unsigned char *tag,
108 			size_t len);
109 void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len);
110 void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx);
111 
112 typedef struct ccm128_context CCM128_CONTEXT;
113 
114 void CRYPTO_ccm128_init(CCM128_CONTEXT *ctx,
115 	unsigned int M, unsigned int L, void *key,block128_f block);
116 int CRYPTO_ccm128_setiv(CCM128_CONTEXT *ctx,
117 	const unsigned char *nonce, size_t nlen, size_t mlen);
118 void CRYPTO_ccm128_aad(CCM128_CONTEXT *ctx,
119 	const unsigned char *aad, size_t alen);
120 int CRYPTO_ccm128_encrypt(CCM128_CONTEXT *ctx,
121 	const unsigned char *inp, unsigned char *out, size_t len);
122 int CRYPTO_ccm128_decrypt(CCM128_CONTEXT *ctx,
123 	const unsigned char *inp, unsigned char *out, size_t len);
124 int CRYPTO_ccm128_encrypt_ccm64(CCM128_CONTEXT *ctx,
125 	const unsigned char *inp, unsigned char *out, size_t len,
126 	ccm128_f stream);
127 int CRYPTO_ccm128_decrypt_ccm64(CCM128_CONTEXT *ctx,
128 	const unsigned char *inp, unsigned char *out, size_t len,
129 	ccm128_f stream);
130 size_t CRYPTO_ccm128_tag(CCM128_CONTEXT *ctx, unsigned char *tag, size_t len);
131 
132 typedef struct xts128_context XTS128_CONTEXT;
133 
134 int CRYPTO_xts128_encrypt(const XTS128_CONTEXT *ctx, const unsigned char iv[16],
135 	const unsigned char *inp, unsigned char *out, size_t len, int enc);
136