int belle_sip_auth_helper_compute_ha1(const char* userid,const char* realm,const char* password, char ha1[33]) {
md5_byte_t out[16];
md5_state_t state;
int di;
if (!userid) {
belle_sip_error("belle_sip_fill_authorization_header, username not found ");
return -1;
}
if (!password) {
belle_sip_error("belle_sip_fill_authorization_header, password not found ");
return -1;
}
if (!realm) {
belle_sip_error("belle_sip_fill_authorization_header, password not found ");
return -1;
}
belle_sip_md5_init(&state);
belle_sip_md5_append(&state,(const md5_byte_t *)userid,strlen(userid));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state,(const md5_byte_t *)realm,strlen(realm));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state,(const md5_byte_t *)password,strlen(password));
belle_sip_md5_finish(&state,out);
for (di = 0; di < 16; ++di)
sprintf(ha1 + di * 2, "%02x", out[di]);
ha1[32]='\0';
return 0;
}
int belle_sip_auth_helper_compute_ha2(const char* method,const char* uri, char ha2[33]) {
md5_byte_t out[16];
md5_state_t state;
int di;
ha2[32]='\0';
/*HA2=MD5(method:uri)*/
belle_sip_md5_init(&state);
belle_sip_md5_append(&state,(const md5_byte_t *)method,strlen(method));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state,(const md5_byte_t *)uri,strlen(uri));
belle_sip_md5_finish(&state,out);
for (di = 0; di < 16; ++di)
sprintf(ha2 + di * 2, "%02x", out[di]);
return 0;
}
int belle_sip_auth_helper_compute_response_qop_auth(const char* ha1
, const char* nonce
, unsigned int nonce_count
, const char* cnonce
, const char* qop
, const char* ha2, char response[33]) {
md5_byte_t out[16];
md5_state_t state;
char nounce_count_as_string[9];
int di;
response[32]='\0';
snprintf(nounce_count_as_string,sizeof(nounce_count_as_string),"%08x",nonce_count);
/*response=MD5(HA1:nonce:nonce_count:cnonce:qop:HA2)*/
belle_sip_md5_init(&state);
belle_sip_md5_append(&state,(const md5_byte_t *)ha1,strlen(ha1));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state
,(const md5_byte_t *)nonce
,strlen(nonce));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state
,(const md5_byte_t *)nounce_count_as_string
,strlen(nounce_count_as_string));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state
,(const md5_byte_t *)cnonce
,strlen(cnonce));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state
,(const md5_byte_t *)qop
,strlen(qop));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state,(const md5_byte_t *)ha2,strlen(ha2));
belle_sip_md5_finish(&state,out);
/*copy values*/
for (di = 0; di < 16; ++di)
sprintf(response + di * 2, "%02x", out[di]);
return 0;
}
int belle_sip_auth_helper_compute_response(const char* ha1,const char* nonce, const char* ha2, char response[33]) {
md5_byte_t out[16];
md5_state_t state;
int di;
response[32]='\0';
belle_sip_md5_init(&state);
belle_sip_md5_append(&state,(const md5_byte_t *)ha1,strlen(ha1));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state
,(const md5_byte_t *)nonce
,strlen(nonce));
belle_sip_md5_append(&state,(const md5_byte_t *)":",1);
belle_sip_md5_append(&state,(const md5_byte_t *)ha2,strlen(ha2));
belle_sip_md5_finish(&state,out);
/*copy values*/
for (di = 0; di < 16; ++di)
sprintf(response + di * 2, "%02x", out[di]);
return 0;
}