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comparison src/c/request.c @ 1104:72670131dace

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Basis.serialize; separate file for mhash; run transactional finishers in reverse order; set needs_sig properly
author Adam Chlipala <adamc@hcoop.net>
date Thu, 31 Dec 2009 11:41:57 -0500
parents db52c32dbe42
children 150465f2895c
comparison
equal deleted inserted replaced
1103:2f42c61b8d0a 1104:72670131dace
65 } 65 }
66 66
67 return ctx; 67 return ctx;
68 } 68 }
69 69
70 #define KEYSIZE 16
71 #define PASSSIZE 4
72
73 #define HASH_ALGORITHM MHASH_SHA256
74 #define HASH_BLOCKSIZE 32
75 #define KEYGEN_ALGORITHM KEYGEN_MCRYPT
76
77 int uw_hash_blocksize = HASH_BLOCKSIZE;
78
79 static int password[PASSSIZE];
80 static unsigned char private_key[KEYSIZE];
81
82 static void init_crypto(void *logger_data, uw_logger log_error) {
83 KEYGEN kg = {{HASH_ALGORITHM, HASH_ALGORITHM}};
84 int i;
85
86 assert(mhash_get_block_size(HASH_ALGORITHM) == HASH_BLOCKSIZE);
87
88 for (i = 0; i < PASSSIZE; ++i)
89 password[i] = rand();
90
91 if (mhash_keygen_ext(KEYGEN_ALGORITHM, kg,
92 private_key, sizeof(private_key),
93 (unsigned char*)password, sizeof(password)) < 0) {
94 log_error(logger_data, "Key generation failed\n");
95 exit(1);
96 }
97 }
98
99 void uw_request_init(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) { 70 void uw_request_init(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
100 uw_context ctx; 71 uw_context ctx;
101 failure_kind fk; 72 failure_kind fk;
102 73
103 uw_global_init(); 74 uw_global_init();
119 uw_rollback(ctx); 90 uw_rollback(ctx);
120 exit(1); 91 exit(1);
121 } 92 }
122 93
123 uw_free(ctx); 94 uw_free(ctx);
124 95 }
125 init_crypto(logger_data, log_error); 96
126 }
127
128 void uw_sign(const char *in, char *out) {
129 MHASH td;
130
131 td = mhash_hmac_init(HASH_ALGORITHM, private_key, sizeof(private_key),
132 mhash_get_hash_pblock(HASH_ALGORITHM));
133
134 mhash(td, in, strlen(in));
135 if (mhash_hmac_deinit(td, out) < 0)
136 fprintf(stderr, "Signing failed\n");
137 }
138 97
139 typedef struct uw_rc { 98 typedef struct uw_rc {
140 size_t path_copy_size; 99 size_t path_copy_size;
141 char *path_copy; 100 char *path_copy;
142 } *uw_request_context; 101 } *uw_request_context;