Mercurial > dropbear

comparison ecc.c @ 761:ac2158e3e403 ecc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ecc kind of works, needs fixing/testing
author Matt Johnston <matt@ucc.asn.au>
date Sun, 07 Apr 2013 01:36:42 +0800
parents 76fba0856749
children a78a38e402d1
comparison
equal deleted inserted replaced
760:f336d232fc63 761:ac2158e3e403
108 } 108 }
109 109
110 ecc_key * buf_get_ecc_pubkey(buffer *buf, const struct dropbear_ecc_curve *curve) { 110 ecc_key * buf_get_ecc_pubkey(buffer *buf, const struct dropbear_ecc_curve *curve) {
111 ecc_key *key = NULL; 111 ecc_key *key = NULL;
112 int ret = DROPBEAR_FAILURE; 112 int ret = DROPBEAR_FAILURE;
113 const int size = curve->dp->size; 113 const unsigned int size = curve->dp->size;
114 buf_setpos(buf, 0); 114 buf_setpos(buf, 0);
115 unsigned int len = buf->len; 115 unsigned int len = buf->len;
116 unsigned char first = buf_getbyte(buf); 116 unsigned char first = buf_getbyte(buf);
117 if (first == 2 || first == 3) { 117 if (first == 2 || first == 3) {
118 dropbear_log(LOG_WARNING, "Dropbear doesn't support ECC point compression"); 118 dropbear_log(LOG_WARNING, "Dropbear doesn't support ECC point compression");
121 if (first != 4 || len != 1+2*size) { 121 if (first != 4 || len != 1+2*size) {
122 return NULL; 122 return NULL;
123 } 123 }
124 124
125 key = new_ecc_key(); 125 key = new_ecc_key();
126 key->dp = curve->dp;
126 127
127 if (mp_read_unsigned_bin(key->pubkey.x, buf_getptr(buf, size), size) != MP_OKAY) { 128 if (mp_read_unsigned_bin(key->pubkey.x, buf_getptr(buf, size), size) != MP_OKAY) {
128 goto out; 129 goto out;
129 } 130 }
130 buf_incrpos(buf, size); 131 buf_incrpos(buf, size);