8 #define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
10 #define BLAKE2_PACKED(x) x __attribute__((packed))
13 enum blake2s_constant {
14 BLAKE2S_BLOCKBYTES = 64,
15 BLAKE2S_OUTBYTES = 32,
16 BLAKE2S_KEYBYTES = 32,
17 BLAKE2S_SALTBYTES = 8,
18 BLAKE2S_PERSONALBYTES = 8
21 enum blake2b_constant {
22 BLAKE2B_BLOCKBYTES = 128,
23 BLAKE2B_OUTBYTES = 64,
24 BLAKE2B_KEYBYTES = 64,
25 BLAKE2B_SALTBYTES = 16,
26 BLAKE2B_PERSONALBYTES = 16
29 typedef struct blake2s_state__ {
33 uint8_t buf[BLAKE2S_BLOCKBYTES];
39 typedef struct blake2b_state__ {
43 uint8_t buf[BLAKE2B_BLOCKBYTES];
49 typedef struct blake2sp_state__ {
50 blake2s_state S[8][1];
52 uint8_t buf[8 * BLAKE2S_BLOCKBYTES];
57 typedef struct blake2bp_state__ {
58 blake2b_state S[4][1];
60 uint8_t buf[4 * BLAKE2B_BLOCKBYTES];
66 BLAKE2_PACKED(struct blake2s_param__ {
67 uint8_t digest_length; /* 1 */
68 uint8_t key_length; /* 2 */
69 uint8_t fanout; /* 3 */
70 uint8_t depth; /* 4 */
71 uint32_t leaf_length; /* 8 */
72 uint32_t node_offset; /* 12 */
73 uint16_t xof_length; /* 14 */
74 uint8_t node_depth; /* 15 */
75 uint8_t inner_length; /* 16 */
76 /* uint8_t reserved[0]; */
77 uint8_t salt[BLAKE2S_SALTBYTES]; /* 24 */
78 uint8_t personal[BLAKE2S_PERSONALBYTES]; /* 32 */
81 typedef struct blake2s_param__ blake2s_param;
83 BLAKE2_PACKED(struct blake2b_param__ {
84 uint8_t digest_length; /* 1 */
85 uint8_t key_length; /* 2 */
86 uint8_t fanout; /* 3 */
87 uint8_t depth; /* 4 */
88 uint32_t leaf_length; /* 8 */
89 uint32_t node_offset; /* 12 */
90 uint32_t xof_length; /* 16 */
91 uint8_t node_depth; /* 17 */
92 uint8_t inner_length; /* 18 */
93 uint8_t reserved[14]; /* 32 */
94 uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
95 uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
98 typedef struct blake2b_param__ blake2b_param;
100 typedef struct blake2xs_state__ {
105 typedef struct blake2xb_state__ {
110 /* Padded structs result in a compile-time error */
112 BLAKE2_DUMMY_1 = 1 / (sizeof(blake2s_param) == BLAKE2S_OUTBYTES),
113 BLAKE2_DUMMY_2 = 1 / (sizeof(blake2b_param) == BLAKE2B_OUTBYTES)
117 int blake2s_init(blake2s_state * S, size_t outlen);
118 int blake2s_init_key(blake2s_state * S, size_t outlen, const void *key,
120 int blake2s_init_param(blake2s_state * S, const blake2s_param * P);
121 int blake2s_update(blake2s_state * S, const void *in, size_t inlen);
122 int blake2s_final(blake2s_state * S, void *out, size_t outlen);
124 int blake2b_init(blake2b_state * S, size_t outlen);
125 int blake2b_init_key(blake2b_state * S, size_t outlen, const void *key,
127 int blake2b_init_param(blake2b_state * S, const blake2b_param * P);
128 int blake2b_update(blake2b_state * S, const void *in, size_t inlen);
129 int blake2b_final(blake2b_state * S, void *out, size_t outlen);
131 int blake2sp_init(blake2sp_state * S, size_t outlen);
132 int blake2sp_init_key(blake2sp_state * S, size_t outlen, const void *key,
134 int blake2sp_update(blake2sp_state * S, const void *in, size_t inlen);
135 int blake2sp_final(blake2sp_state * S, void *out, size_t outlen);
137 int blake2bp_init(blake2bp_state * S, size_t outlen);
138 int blake2bp_init_key(blake2bp_state * S, size_t outlen, const void *key,
140 int blake2bp_update(blake2bp_state * S, const void *in, size_t inlen);
141 int blake2bp_final(blake2bp_state * S, void *out, size_t outlen);
143 /* Variable output length API */
144 int blake2xs_init(blake2xs_state * S, const size_t outlen);
145 int blake2xs_init_key(blake2xs_state * S, const size_t outlen,
146 const void *key, size_t keylen);
147 int blake2xs_update(blake2xs_state * S, const void *in, size_t inlen);
148 int blake2xs_final(blake2xs_state * S, void *out, size_t outlen);
150 int blake2xb_init(blake2xb_state * S, const size_t outlen);
151 int blake2xb_init_key(blake2xb_state * S, const size_t outlen,
152 const void *key, size_t keylen);
153 int blake2xb_update(blake2xb_state * S, const void *in, size_t inlen);
154 int blake2xb_final(blake2xb_state * S, void *out, size_t outlen);
157 int blake2s(void *out, size_t outlen, const void *in, size_t inlen,
158 const void *key, size_t keylen);
159 int blake2b(void *out, size_t outlen, const void *in, size_t inlen,
160 const void *key, size_t keylen);
162 int blake2sp(void *out, size_t outlen, const void *in, size_t inlen,
163 const void *key, size_t keylen);
164 int blake2bp(void *out, size_t outlen, const void *in, size_t inlen,
165 const void *key, size_t keylen);
167 int blake2xs(void *out, size_t outlen, const void *in, size_t inlen,
168 const void *key, size_t keylen);
169 int blake2xb(void *out, size_t outlen, const void *in, size_t inlen,
170 const void *key, size_t keylen);
172 /* This is simply an alias for blake2b */
173 int blake2(void *out, size_t outlen, const void *in, size_t inlen,
174 const void *key, size_t keylen);