org.jruby.ext.openssl.impl.PKey Maven / Gradle / Ivy
/***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2010 Hiroshi Nakamura
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.ext.openssl.impl;
import java.io.IOException;
import java.math.BigInteger;
import java.security.GeneralSecurityException;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.interfaces.DSAParams;
import java.security.interfaces.DSAPrivateKey;
import java.security.interfaces.DSAPublicKey;
import java.security.interfaces.RSAPrivateCrtKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.DSAPrivateKeySpec;
import java.security.spec.DSAPublicKeySpec;
import java.security.spec.KeySpec;
import java.security.spec.RSAPrivateCrtKeySpec;
import java.security.spec.RSAPublicKeySpec;
import javax.crypto.spec.DHParameterSpec;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DLSequence;
/**
*
* Handles PKey related ASN.1 handling.
*
* @author Hiroshi Nakamura
*/
public class PKey {
public static KeyPair readPrivateKey(byte[] input, String type) throws IOException, GeneralSecurityException {
KeySpec pubSpec = null;
KeySpec privSpec = null;
ASN1Sequence seq = (ASN1Sequence) new ASN1InputStream(input).readObject();
if (type.equals("RSA")) {
ASN1Integer mod = (ASN1Integer) seq.getObjectAt(1);
ASN1Integer pubExp = (ASN1Integer) seq.getObjectAt(2);
ASN1Integer privExp = (ASN1Integer) seq.getObjectAt(3);
ASN1Integer p1 = (ASN1Integer) seq.getObjectAt(4);
ASN1Integer p2 = (ASN1Integer) seq.getObjectAt(5);
ASN1Integer exp1 = (ASN1Integer) seq.getObjectAt(6);
ASN1Integer exp2 = (ASN1Integer) seq.getObjectAt(7);
ASN1Integer crtCoef = (ASN1Integer) seq.getObjectAt(8);
pubSpec = new RSAPublicKeySpec(mod.getValue(), pubExp.getValue());
privSpec = new RSAPrivateCrtKeySpec(mod.getValue(), pubExp.getValue(), privExp.getValue(), p1.getValue(), p2.getValue(), exp1.getValue(),
exp2.getValue(), crtCoef.getValue());
} else { // assume "DSA" for now.
ASN1Integer p = (ASN1Integer) seq.getObjectAt(1);
ASN1Integer q = (ASN1Integer) seq.getObjectAt(2);
ASN1Integer g = (ASN1Integer) seq.getObjectAt(3);
ASN1Integer y = (ASN1Integer) seq.getObjectAt(4);
ASN1Integer x = (ASN1Integer) seq.getObjectAt(5);
privSpec = new DSAPrivateKeySpec(x.getValue(), p.getValue(), q.getValue(), g.getValue());
pubSpec = new DSAPublicKeySpec(y.getValue(), p.getValue(), q.getValue(), g.getValue());
}
KeyFactory fact = KeyFactory.getInstance(type);
return new KeyPair(fact.generatePublic(pubSpec), fact.generatePrivate(privSpec));
}
// d2i_PrivateKey_bio
public static KeyPair readPrivateKey(byte[] input) throws IOException, GeneralSecurityException {
KeyPair key = null;
try {
key = readRSAPrivateKey(input);
} catch (Exception e) {
// ignore
}
if (key == null) {
try {
key = readDSAPrivateKey(input);
} catch (Exception e) {
// ignore
}
}
return key;
}
// d2i_PUBKEY_bio
public static PublicKey readPublicKey(byte[] input) throws IOException, GeneralSecurityException {
PublicKey key = null;
try {
key = readRSAPublicKey(input);
} catch (Exception e) {
// ignore
}
if (key == null) {
try {
key = readDSAPublicKey(input);
} catch (Exception e) {
// ignore
}
}
return key;
}
// d2i_RSAPrivateKey_bio
public static KeyPair readRSAPrivateKey(byte[] input) throws IOException, GeneralSecurityException {
KeyFactory fact = KeyFactory.getInstance("RSA");
ASN1Sequence seq = (ASN1Sequence) (new ASN1InputStream(input).readObject());
if (seq.size() == 9) {
BigInteger mod = ((ASN1Integer) seq.getObjectAt(1)).getValue();
BigInteger pubexp = ((ASN1Integer) seq.getObjectAt(2)).getValue();
BigInteger privexp = ((ASN1Integer) seq.getObjectAt(3)).getValue();
BigInteger primep = ((ASN1Integer) seq.getObjectAt(4)).getValue();
BigInteger primeq = ((ASN1Integer) seq.getObjectAt(5)).getValue();
BigInteger primeep = ((ASN1Integer) seq.getObjectAt(6)).getValue();
BigInteger primeeq = ((ASN1Integer) seq.getObjectAt(7)).getValue();
BigInteger crtcoeff = ((ASN1Integer) seq.getObjectAt(8)).getValue();
PrivateKey priv = fact.generatePrivate(new RSAPrivateCrtKeySpec(mod, pubexp, privexp, primep, primeq, primeep, primeeq, crtcoeff));
PublicKey pub = fact.generatePublic(new RSAPublicKeySpec(mod, pubexp));
return new KeyPair(pub, priv);
} else {
return null;
}
}
// d2i_RSAPublicKey_bio
public static PublicKey readRSAPublicKey(byte[] input) throws IOException, GeneralSecurityException {
KeyFactory fact = KeyFactory.getInstance("RSA");
ASN1Sequence seq = (ASN1Sequence) (new ASN1InputStream(input).readObject());
if (seq.size() == 2) {
BigInteger mod = ((ASN1Integer) seq.getObjectAt(0)).getValue();
BigInteger pubexp = ((ASN1Integer) seq.getObjectAt(1)).getValue();
return fact.generatePublic(new RSAPublicKeySpec(mod, pubexp));
} else {
return null;
}
}
// d2i_DSAPrivateKey_bio
public static KeyPair readDSAPrivateKey(byte[] input) throws IOException, GeneralSecurityException {
KeyFactory fact = KeyFactory.getInstance("DSA");
ASN1Sequence seq = (ASN1Sequence) (new ASN1InputStream(input).readObject());
if (seq.size() == 6) {
BigInteger p = ((ASN1Integer) seq.getObjectAt(1)).getValue();
BigInteger q = ((ASN1Integer) seq.getObjectAt(2)).getValue();
BigInteger g = ((ASN1Integer) seq.getObjectAt(3)).getValue();
BigInteger y = ((ASN1Integer) seq.getObjectAt(4)).getValue();
BigInteger x = ((ASN1Integer) seq.getObjectAt(5)).getValue();
PrivateKey priv = fact.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
PublicKey pub = fact.generatePublic(new DSAPublicKeySpec(y, p, q, g));
return new KeyPair(pub, priv);
} else {
return null;
}
}
// d2i_DSA_PUBKEY_bio
public static PublicKey readDSAPublicKey(byte[] input) throws IOException, GeneralSecurityException {
KeyFactory fact = KeyFactory.getInstance("RSA");
ASN1Sequence seq = (ASN1Sequence) (new ASN1InputStream(input).readObject());
if (seq.size() == 4) {
BigInteger y = ((ASN1Integer) seq.getObjectAt(0)).getValue();
BigInteger p = ((ASN1Integer) seq.getObjectAt(1)).getValue();
BigInteger q = ((ASN1Integer) seq.getObjectAt(2)).getValue();
BigInteger g = ((ASN1Integer) seq.getObjectAt(3)).getValue();
return fact.generatePublic(new DSAPublicKeySpec(y, p, q, g));
} else {
return null;
}
}
// d2i_DHparams_bio
public static DHParameterSpec readDHParameter(byte[] input) throws IOException {
ASN1InputStream aIn = new ASN1InputStream(input);
ASN1Sequence seq = (ASN1Sequence) aIn.readObject();
BigInteger p = ((ASN1Integer) seq.getObjectAt(0)).getValue();
BigInteger g = ((ASN1Integer) seq.getObjectAt(1)).getValue();
return new DHParameterSpec(p, g);
}
public static byte[] toDerRSAKey(RSAPublicKey pubKey, RSAPrivateCrtKey privKey) throws IOException {
ASN1EncodableVector v1 = new ASN1EncodableVector();
if (pubKey != null && privKey == null) {
v1.add(new ASN1Integer(pubKey.getModulus()));
v1.add(new ASN1Integer(pubKey.getPublicExponent()));
} else {
v1.add(new ASN1Integer(0));
v1.add(new ASN1Integer(privKey.getModulus()));
v1.add(new ASN1Integer(privKey.getPublicExponent()));
v1.add(new ASN1Integer(privKey.getPrivateExponent()));
v1.add(new ASN1Integer(privKey.getPrimeP()));
v1.add(new ASN1Integer(privKey.getPrimeQ()));
v1.add(new ASN1Integer(privKey.getPrimeExponentP()));
v1.add(new ASN1Integer(privKey.getPrimeExponentQ()));
v1.add(new ASN1Integer(privKey.getCrtCoefficient()));
}
return new DLSequence(v1).getEncoded();
}
public static byte[] toDerDSAKey(DSAPublicKey pubKey, DSAPrivateKey privKey) throws IOException {
if (pubKey != null && privKey == null) {
return pubKey.getEncoded();
} else if (privKey != null && pubKey != null) {
DSAParams params = privKey.getParams();
ASN1EncodableVector v1 = new ASN1EncodableVector();
v1.add(new ASN1Integer(0));
v1.add(new ASN1Integer(params.getP()));
v1.add(new ASN1Integer(params.getQ()));
v1.add(new ASN1Integer(params.getG()));
v1.add(new ASN1Integer(pubKey.getY()));
v1.add(new ASN1Integer(privKey.getX()));
return new DLSequence(v1).getEncoded();
} else {
return privKey.getEncoded();
}
}
public static byte[] toDerDHKey(BigInteger p, BigInteger g) throws IOException {
ASN1EncodableVector v = new ASN1EncodableVector();
if (p != null) {
v.add(new ASN1Integer(p));
}
if (g != null) {
v.add(new ASN1Integer(g));
}
return new DLSequence(v).getEncoded();
}
}
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