JNIEXPORT jint JNICALL Java_be_cardon_nativecall_cryptoapi_CryptoAPICalls_CryptImportPublicKey
  (JNIEnv *env, jobject obj, jint hProv, jbyteArray keyEncoded) {

#define szOID_CP_GOST_R3410EL "1.2.643.2.2.19"
#define ENCODING              X509_ASN_ENCODING | PKCS_7_ASN_ENCODING
#define ALG_TYPE_GR3410       (7 << 9)
#define ALG_SID_GR3410        30
#define ALG_SID_GR3410EL      35
#define CALG_GR3410           (ALG_CLASS_SIGNATURE | ALG_TYPE_GR3410 | ALG_SID_GR3410)
#define CALG_GR3410EL         (ALG_CLASS_SIGNATURE | ALG_TYPE_GR3410 | ALG_SID_GR3410EL)

		LPBYTE pbKeyEncoded = (LPBYTE)env->GetByteArrayElements(keyEncoded, 0);
		DWORD dwKeyLen = env->GetArrayLength(keyEncoded);
		LPBYTE pvStructIfno;
		DWORD cbStructInfo = 0;
		HCRYPTKEY hKey;

		CryptDecodeObject(ENCODING, szOID_CP_GOST_R3410EL, pbKeyEncoded, dwKeyLen, 0, NULL, &cbStructInfo);
		if (cbStructInfo == 0){
			const char* msg = "Failed to decode public key";
			throwCryptoAPIException(env, msg);
		}
		pvStructIfno = new BYTE[cbStructInfo];
		if (!CryptDecodeObject(ENCODING, szOID_CP_GOST_R3410EL, pbKeyEncoded, dwKeyLen, 0, pvStructIfno, &cbStructInfo)){
			const char* msg = "Failed to decode public key";
			throwCryptoAPIException(env, msg);
		}
		if (!CryptImportPublicKeyInfoEx(hProv, ENCODING, (PCERT_PUBLIC_KEY_INFO)pvStructIfno, CALG_GR3410, 0, NULL, &hKey)){
			const char* msg = "Failed to import public key";
			throwCryptoAPIException(env, msg);
		}

		env->ReleaseByteArrayElements(keyEncoded, (jbyte*)pbKeyEncoded, JNI_ABORT);

		return (jint)hKey;
}