| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.conscrypt; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.math.BigInteger; |
| import java.security.InvalidKeyException; |
| import java.security.interfaces.RSAPublicKey; |
| import java.security.spec.InvalidKeySpecException; |
| import java.security.spec.RSAPublicKeySpec; |
| |
| public class OpenSSLRSAPublicKey implements RSAPublicKey, OpenSSLKeyHolder { |
| private static final long serialVersionUID = 123125005824688292L; |
| |
| private transient OpenSSLKey key; |
| |
| private BigInteger publicExponent; |
| |
| private BigInteger modulus; |
| |
| private transient boolean fetchedParams; |
| |
| OpenSSLRSAPublicKey(OpenSSLKey key) { |
| this.key = key; |
| } |
| |
| @Override |
| public OpenSSLKey getOpenSSLKey() { |
| return key; |
| } |
| |
| OpenSSLRSAPublicKey(RSAPublicKeySpec spec) throws InvalidKeySpecException { |
| try { |
| key = new OpenSSLKey(NativeCrypto.EVP_PKEY_new_RSA( |
| spec.getModulus().toByteArray(), |
| spec.getPublicExponent().toByteArray(), |
| null, |
| null, |
| null, |
| null, |
| null, |
| null)); |
| } catch (Exception e) { |
| throw new InvalidKeySpecException(e); |
| } |
| } |
| |
| static OpenSSLKey getInstance(RSAPublicKey rsaPublicKey) throws InvalidKeyException { |
| try { |
| return new OpenSSLKey(NativeCrypto.EVP_PKEY_new_RSA( |
| rsaPublicKey.getModulus().toByteArray(), |
| rsaPublicKey.getPublicExponent().toByteArray(), |
| null, |
| null, |
| null, |
| null, |
| null, |
| null)); |
| } catch (Exception e) { |
| throw new InvalidKeyException(e); |
| } |
| } |
| |
| @Override |
| public String getAlgorithm() { |
| return "RSA"; |
| } |
| |
| @Override |
| public String getFormat() { |
| return "X.509"; |
| } |
| |
| @Override |
| public byte[] getEncoded() { |
| return NativeCrypto.i2d_PUBKEY(key.getPkeyContext()); |
| } |
| |
| private void ensureReadParams() { |
| if (fetchedParams) { |
| return; |
| } |
| |
| byte[][] params = NativeCrypto.get_RSA_public_params(key.getPkeyContext()); |
| modulus = new BigInteger(params[0]); |
| publicExponent = new BigInteger(params[1]); |
| |
| fetchedParams = true; |
| } |
| |
| @Override |
| public BigInteger getModulus() { |
| ensureReadParams(); |
| return modulus; |
| } |
| |
| @Override |
| public BigInteger getPublicExponent() { |
| ensureReadParams(); |
| return publicExponent; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o == this) { |
| return true; |
| } |
| |
| if (o instanceof OpenSSLRSAPublicKey) { |
| OpenSSLRSAPublicKey other = (OpenSSLRSAPublicKey) o; |
| |
| /* |
| * We can shortcut the true case, but it still may be equivalent but |
| * different copies. |
| */ |
| if (key.equals(other.getOpenSSLKey())) { |
| return true; |
| } |
| } |
| |
| if (!(o instanceof RSAPublicKey)) { |
| return false; |
| } |
| |
| ensureReadParams(); |
| |
| RSAPublicKey other = (RSAPublicKey) o; |
| return modulus.equals(other.getModulus()) |
| && publicExponent.equals(other.getPublicExponent()); |
| } |
| |
| @Override |
| public int hashCode() { |
| ensureReadParams(); |
| |
| return modulus.hashCode() ^ publicExponent.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| ensureReadParams(); |
| |
| final StringBuilder sb = new StringBuilder("OpenSSLRSAPublicKey{"); |
| sb.append("modulus="); |
| sb.append(modulus.toString(16)); |
| sb.append(','); |
| sb.append("publicExponent="); |
| sb.append(publicExponent.toString(16)); |
| sb.append('}'); |
| |
| return sb.toString(); |
| } |
| |
| private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException { |
| stream.defaultReadObject(); |
| |
| key = new OpenSSLKey(NativeCrypto.EVP_PKEY_new_RSA( |
| modulus.toByteArray(), |
| publicExponent.toByteArray(), |
| null, |
| null, |
| null, |
| null, |
| null, |
| null)); |
| fetchedParams = true; |
| } |
| |
| private void writeObject(ObjectOutputStream stream) throws IOException { |
| ensureReadParams(); |
| stream.defaultWriteObject(); |
| } |
| } |