public byte[] getEncoded() {
SubjectPublicKeyInfo info;
byte[] keyEnc = this.getY().toByteArray();
byte[] keyBytes;
if (keyEnc[0] == 0) {
keyBytes = new byte[keyEnc.length - 1];
} else {
keyBytes = new byte[keyEnc.length];
}
for (int i = 0; i != keyBytes.length; i++) {
keyBytes[i] = keyEnc[keyEnc.length - 1 - i]; // must be little endian
}
try {
if (gost3410Spec instanceof GOST3410ParameterSpec) {
if (gost3410Spec.getEncryptionParamSetOID() != null) {
info =
new SubjectPublicKeyInfo(
new AlgorithmIdentifier(
CryptoProObjectIdentifiers.gostR3410_94,
new GOST3410PublicKeyAlgParameters(
new ASN1ObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()),
new ASN1ObjectIdentifier(gost3410Spec.getDigestParamSetOID()),
new ASN1ObjectIdentifier(gost3410Spec.getEncryptionParamSetOID()))),
new DEROctetString(keyBytes));
} else {
info =
new SubjectPublicKeyInfo(
new AlgorithmIdentifier(
CryptoProObjectIdentifiers.gostR3410_94,
new GOST3410PublicKeyAlgParameters(
new ASN1ObjectIdentifier(gost3410Spec.getPublicKeyParamSetOID()),
new ASN1ObjectIdentifier(gost3410Spec.getDigestParamSetOID()))),
new DEROctetString(keyBytes));
}
} else {
info =
new SubjectPublicKeyInfo(
new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_94),
new DEROctetString(keyBytes));
}
return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
} catch (IOException e) {
return null;
}
}
public byte[] encodeKey(CipherParameters key) {
if (!(key instanceof RSAKeyParameters)) {
return null;
}
if (((RSAKeyParameters) key).isPrivate()) {
return null;
}
RSAKeyParameters rsaKey = (RSAKeyParameters) key;
ASN1EncodableVector encodable = new ASN1EncodableVector();
encodable.add(new ASN1Integer(rsaKey.getModulus()));
encodable.add(new ASN1Integer(rsaKey.getExponent()));
return KeyUtil.getEncodedSubjectPublicKeyInfo(
new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, new DERNull()),
new DERSequence(encodable));
}
