__attribute__((visibility("default"))) int openssl_sign_data(
const keymaster0_device_t*, const void* params, const uint8_t* keyBlob,
const size_t keyBlobLength, const uint8_t* data, const size_t dataLength, uint8_t** signedData,
size_t* signedDataLength) {
if (data == NULL) {
ALOGW("input data to sign == NULL");
return -1;
} else if (signedData == NULL || signedDataLength == NULL) {
ALOGW("output signature buffer == NULL");
return -1;
}
Unique_EVP_PKEY pkey(unwrap_key(keyBlob, keyBlobLength));
if (pkey.get() == NULL) {
return -1;
}
int type = EVP_PKEY_type(pkey->type);
if (type == EVP_PKEY_DSA) {
const keymaster_dsa_sign_params_t* sign_params =
reinterpret_cast<const keymaster_dsa_sign_params_t*>(params);
return sign_dsa(pkey.get(), const_cast<keymaster_dsa_sign_params_t*>(sign_params), data,
dataLength, signedData, signedDataLength);
} else if (type == EVP_PKEY_EC) {
const keymaster_ec_sign_params_t* sign_params =
reinterpret_cast<const keymaster_ec_sign_params_t*>(params);
return sign_ec(pkey.get(), const_cast<keymaster_ec_sign_params_t*>(sign_params), data,
dataLength, signedData, signedDataLength);
} else if (type == EVP_PKEY_RSA) {
const keymaster_rsa_sign_params_t* sign_params =
reinterpret_cast<const keymaster_rsa_sign_params_t*>(params);
return sign_rsa(pkey.get(), const_cast<keymaster_rsa_sign_params_t*>(sign_params), data,
dataLength, signedData, signedDataLength);
} else {
ALOGW("Unsupported key type");
return -1;
}
}
int main(int argc,char *argv[]) {
DSA *dsa;
int err;
unsigned char digest[] = "hiaasdasdaasdadasdaa";
struct hip_dsa_sig_contents sig;
int i = 0;
fprintf(stderr, "main start\n");
ERR_load_crypto_strings();
/* set_random_seed(); */
dsa = create_dsa_key(512 /* bits */);
if (!dsa) {
fprintf(stderr, "create_dsa_key\n");
exit(1);
}
fprintf(stderr, "\nbignum in bits: p=%d q=%d g=%d priv=%d pub=%d\n",
BN_num_bits(dsa->p), BN_num_bits(dsa->q), BN_num_bits(dsa->g),
BN_num_bits(dsa->priv_key), BN_num_bits(dsa->pub_key));
fprintf(stderr, "DSA_sign message (len=%d) '%s' .. ", strlen(digest), digest);
err = sign_dsa(digest, strlen(digest), &sig, dsa);
if (err) {
fprintf(stderr, "failed\n");
ERR_print_errors_fp(stderr);
DSA_free(dsa);
exit(1);
} else {
fprintf(stderr, "ok\n");
}
fprintf(stderr, "signature type=%d\n", sig.type);
fprintf(stderr, " R=");
for (i = 0; i < HIP_DSA_SIG_R_SIZE; i++)
fprintf(stderr, "%.2x", (unsigned char)sig.r[i]);
fprintf(stderr, "\n");
fprintf(stderr, " S=");
for (i = 0; i < HIP_DSA_SIG_S_SIZE; i++)
fprintf(stderr, "%.2x", (unsigned char)sig.s[i]);
fprintf(stderr, "\n");
/* digest[0] ^= 255; */ /* fail test */
fprintf(stderr, "DSA_verify .. ");
err = verify_dsa(digest, strlen(digest), &sig, dsa);
if (err) {
fprintf(stderr, "failed\n");
ERR_print_errors_fp(stderr);
DSA_free(dsa);
exit(1);
} else {
fprintf(stderr, "ok\n");
}
fprintf(stderr, "DSA_free\n");
DSA_free(dsa);
return 0;
}