--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/security/rsa/RSAPrivateCrtKeyImpl.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.security.rsa;
+
+import java.io.IOException;
+import java.math.BigInteger;
+
+import java.security.*;
+import java.security.interfaces.*;
+
+import sun.security.util.*;
+import sun.security.x509.AlgorithmId;
+import sun.security.pkcs.PKCS8Key;
+
+/**
+ * Key implementation for RSA private keys, CRT form. For non-CRT private
+ * keys, see RSAPrivateKeyImpl. We need separate classes to ensure
+ * correct behavior in instanceof checks, etc.
+ *
+ * Note: RSA keys must be at least 512 bits long
+ *
+ * @see RSAPrivateKeyImpl
+ * @see RSAKeyFactory
+ *
+ * @since 1.5
+ * @author Andreas Sterbenz
+ */
+public final class RSAPrivateCrtKeyImpl
+ extends PKCS8Key implements RSAPrivateCrtKey {
+
+ private static final long serialVersionUID = -1326088454257084918L;
+
+ private BigInteger n; // modulus
+ private BigInteger e; // public exponent
+ private BigInteger d; // private exponent
+ private BigInteger p; // prime p
+ private BigInteger q; // prime q
+ private BigInteger pe; // prime exponent p
+ private BigInteger qe; // prime exponent q
+ private BigInteger coeff; // CRT coeffcient
+
+ // algorithmId used to identify RSA keys
+ static final AlgorithmId rsaId =
+ new AlgorithmId(AlgorithmId.RSAEncryption_oid);
+
+ /**
+ * Generate a new key from its encoding. Returns a CRT key if possible
+ * and a non-CRT key otherwise. Used by RSAKeyFactory.
+ */
+ public static RSAPrivateKey newKey(byte[] encoded)
+ throws InvalidKeyException {
+ RSAPrivateCrtKeyImpl key = new RSAPrivateCrtKeyImpl(encoded);
+ if (key.getPublicExponent().signum() == 0) {
+ // public exponent is missing, return a non-CRT key
+ return new RSAPrivateKeyImpl(
+ key.getModulus(),
+ key.getPrivateExponent()
+ );
+ } else {
+ return key;
+ }
+ }
+
+ /**
+ * Construct a key from its encoding. Called from newKey above.
+ */
+ RSAPrivateCrtKeyImpl(byte[] encoded) throws InvalidKeyException {
+ decode(encoded);
+ RSAKeyFactory.checkRSAProviderKeyLengths(n.bitLength(), e);
+ }
+
+ /**
+ * Construct a key from its components. Used by the
+ * RSAKeyFactory and the RSAKeyPairGenerator.
+ */
+ RSAPrivateCrtKeyImpl(BigInteger n, BigInteger e, BigInteger d,
+ BigInteger p, BigInteger q, BigInteger pe, BigInteger qe,
+ BigInteger coeff) throws InvalidKeyException {
+ this.n = n;
+ this.e = e;
+ this.d = d;
+ this.p = p;
+ this.q = q;
+ this.pe = pe;
+ this.qe = qe;
+ this.coeff = coeff;
+ RSAKeyFactory.checkRSAProviderKeyLengths(n.bitLength(), e);
+
+ // generate the encoding
+ algid = rsaId;
+ try {
+ DerOutputStream out = new DerOutputStream();
+ out.putInteger(0); // version must be 0
+ out.putInteger(n);
+ out.putInteger(e);
+ out.putInteger(d);
+ out.putInteger(p);
+ out.putInteger(q);
+ out.putInteger(pe);
+ out.putInteger(qe);
+ out.putInteger(coeff);
+ DerValue val =
+ new DerValue(DerValue.tag_Sequence, out.toByteArray());
+ key = val.toByteArray();
+ } catch (IOException exc) {
+ // should never occur
+ throw new InvalidKeyException(exc);
+ }
+ }
+
+ // see JCA doc
+ public String getAlgorithm() {
+ return "RSA";
+ }
+
+ // see JCA doc
+ public BigInteger getModulus() {
+ return n;
+ }
+
+ // see JCA doc
+ public BigInteger getPublicExponent() {
+ return e;
+ }
+
+ // see JCA doc
+ public BigInteger getPrivateExponent() {
+ return d;
+ }
+
+ // see JCA doc
+ public BigInteger getPrimeP() {
+ return p;
+ }
+
+ // see JCA doc
+ public BigInteger getPrimeQ() {
+ return q;
+ }
+
+ // see JCA doc
+ public BigInteger getPrimeExponentP() {
+ return pe;
+ }
+
+ // see JCA doc
+ public BigInteger getPrimeExponentQ() {
+ return qe;
+ }
+
+ // see JCA doc
+ public BigInteger getCrtCoefficient() {
+ return coeff;
+ }
+
+ /**
+ * Parse the key. Called by PKCS8Key.
+ */
+ protected void parseKeyBits() throws InvalidKeyException {
+ try {
+ DerInputStream in = new DerInputStream(key);
+ DerValue derValue = in.getDerValue();
+ if (derValue.tag != DerValue.tag_Sequence) {
+ throw new IOException("Not a SEQUENCE");
+ }
+ DerInputStream data = derValue.data;
+ int version = data.getInteger();
+ if (version != 0) {
+ throw new IOException("Version must be 0");
+ }
+
+ /*
+ * Some implementations do not correctly encode ASN.1 INTEGER values
+ * in 2's complement format, resulting in a negative integer when
+ * decoded. Correct the error by converting it to a positive integer.
+ *
+ * See CR 6255949
+ */
+ n = data.getPositiveBigInteger();
+ e = data.getPositiveBigInteger();
+ d = data.getPositiveBigInteger();
+ p = data.getPositiveBigInteger();
+ q = data.getPositiveBigInteger();
+ pe = data.getPositiveBigInteger();
+ qe = data.getPositiveBigInteger();
+ coeff = data.getPositiveBigInteger();
+ if (derValue.data.available() != 0) {
+ throw new IOException("Extra data available");
+ }
+ } catch (IOException e) {
+ throw new InvalidKeyException("Invalid RSA private key", e);
+ }
+ }
+}