blob: c1aa2ee223870030717dc933da9e5130de80082f [file] [log] [blame]
package aQute.libg.cryptography;
import java.math.*;
import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;
import aQute.libg.tuple.*;
public class RSA {
final static String ALGORITHM = "RSA";
final static KeyFactory factory = getKeyFactory();
static private KeyFactory getKeyFactory() {
try {
return KeyFactory.getInstance(ALGORITHM);
}
catch (Exception e) {
// built in
}
return null;
}
public static RSAPrivateKey create(RSAPrivateKeySpec keyspec) throws InvalidKeySpecException {
return (RSAPrivateKey) factory.generatePrivate(keyspec);
}
public static RSAPublicKey create(RSAPublicKeySpec keyspec) throws InvalidKeySpecException {
return (RSAPublicKey) factory.generatePrivate(keyspec);
}
public static RSAPublicKey createPublic(BigInteger m, BigInteger e) throws InvalidKeySpecException {
return create(new RSAPublicKeySpec(m, e));
}
public static RSAPrivateKey createPrivate(BigInteger m, BigInteger e) throws InvalidKeySpecException {
return create(new RSAPrivateKeySpec(m, e));
}
public static Pair<RSAPrivateKey,RSAPublicKey> generate() throws NoSuchAlgorithmException {
KeyPairGenerator kpg = KeyPairGenerator.getInstance(ALGORITHM);
KeyPair keypair = kpg.generateKeyPair();
return new Pair<RSAPrivateKey,RSAPublicKey>((RSAPrivateKey) keypair.getPrivate(),
(RSAPublicKey) keypair.getPublic());
}
}