| // 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 com.google.crypto.tink; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static com.google.crypto.tink.TestUtil.assertExceptionContains; |
| import static org.junit.Assert.fail; |
| |
| import com.google.crypto.tink.proto.Ed25519PrivateKey; |
| import com.google.crypto.tink.proto.Ed25519PublicKey; |
| import com.google.crypto.tink.proto.KeyData; |
| import com.google.crypto.tink.proto.KeyData.KeyMaterialType; |
| import com.google.crypto.tink.subtle.Random; |
| import com.google.protobuf.ByteString; |
| import com.google.protobuf.InvalidProtocolBufferException; |
| import java.security.GeneralSecurityException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests the methods implemented in KeyManagerImpl using the concrete implementation above. */ |
| @RunWith(JUnit4.class) |
| public final class PrivateKeyManagerImplTest { |
| |
| private static class TestPublicKeyTypeManager extends KeyTypeManager<Ed25519PublicKey> { |
| public TestPublicKeyTypeManager() { |
| super(Ed25519PublicKey.class); |
| } |
| |
| @Override |
| public String getKeyType() { |
| return "type.googleapis.com/google.crypto.tink.Ed25519PublicKey"; |
| } |
| |
| @Override |
| public int getVersion() { |
| return 1; |
| } |
| |
| @Override |
| public KeyMaterialType keyMaterialType() { |
| return KeyMaterialType.ASYMMETRIC_PUBLIC; |
| } |
| |
| @Override |
| public void validateKey(Ed25519PublicKey keyProto) throws GeneralSecurityException { |
| if (keyProto.getKeyValue().size() != 32) { |
| throw new GeneralSecurityException("validateKey(Ed25519PublicKey) failed"); |
| } |
| } |
| |
| @Override |
| public Ed25519PublicKey parseKey(ByteString byteString) throws InvalidProtocolBufferException { |
| return Ed25519PublicKey.parseFrom(byteString); |
| } |
| } |
| |
| private static class TestPrivateKeyTypeManager |
| extends PrivateKeyTypeManager<Ed25519PrivateKey, Ed25519PublicKey> { |
| public TestPrivateKeyTypeManager() { |
| super(Ed25519PrivateKey.class, Ed25519PublicKey.class); |
| } |
| |
| @Override |
| public String getKeyType() { |
| return "type.googleapis.com/google.crypto.tink.Ed25519PrivateKey"; |
| } |
| |
| @Override |
| public int getVersion() { |
| return 1; |
| } |
| |
| @Override |
| public KeyMaterialType keyMaterialType() { |
| return KeyMaterialType.ASYMMETRIC_PRIVATE; |
| } |
| |
| @Override |
| public void validateKey(Ed25519PrivateKey keyProto) throws GeneralSecurityException { |
| // Throw by hand so we can verify the exception comes from here. |
| if (keyProto.getKeyValue().size() != 32) { |
| throw new GeneralSecurityException("validateKey(Ed25519PrivateKey) failed"); |
| } |
| } |
| |
| @Override |
| public Ed25519PrivateKey parseKey(ByteString byteString) throws InvalidProtocolBufferException { |
| return Ed25519PrivateKey.parseFrom(byteString); |
| } |
| |
| @Override |
| public Ed25519PublicKey getPublicKey(Ed25519PrivateKey privateKey) { |
| return privateKey.getPublicKey(); |
| } |
| } |
| |
| @Test |
| public void getPublicKeyData_works() throws Exception { |
| TestPrivateKeyTypeManager privateManager = new TestPrivateKeyTypeManager(); |
| TestPublicKeyTypeManager publicManager = new TestPublicKeyTypeManager(); |
| PrivateKeyManager<Void> manager = |
| new PrivateKeyManagerImpl<>(privateManager, publicManager, Void.class); |
| Ed25519PrivateKey privateKey = |
| Ed25519PrivateKey.newBuilder() |
| .setPublicKey( |
| Ed25519PublicKey.newBuilder() |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(32)))) |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(32))) |
| .build(); |
| |
| KeyData keyData = manager.getPublicKeyData(privateKey.toByteString()); |
| |
| assertThat(keyData.getTypeUrl()) |
| .isEqualTo("type.googleapis.com/google.crypto.tink.Ed25519PublicKey"); |
| Ed25519PublicKey publicKey = Ed25519PublicKey.parseFrom(keyData.getValue()); |
| assertThat(publicKey).isEqualTo(privateKey.getPublicKey()); |
| assertThat(keyData.getKeyMaterialType()).isEqualTo(KeyMaterialType.ASYMMETRIC_PUBLIC); |
| } |
| |
| @Test |
| public void getPublicKeyData_invalidPrivateKey_throws() throws Exception { |
| TestPrivateKeyTypeManager privateManager = new TestPrivateKeyTypeManager(); |
| TestPublicKeyTypeManager publicManager = new TestPublicKeyTypeManager(); |
| PrivateKeyManager<Void> manager = |
| new PrivateKeyManagerImpl<>(privateManager, publicManager, Void.class); |
| Ed25519PrivateKey privateKey = |
| Ed25519PrivateKey.newBuilder() |
| .setPublicKey( |
| Ed25519PublicKey.newBuilder() |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(32)))) |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(33))) |
| .build(); |
| ByteString privateKeyByteString = privateKey.toByteString(); |
| |
| try { |
| manager.getPublicKeyData(privateKeyByteString); |
| fail(); |
| } catch (GeneralSecurityException e) { |
| assertExceptionContains(e, "validateKey(Ed25519PrivateKey)"); |
| } |
| } |
| |
| @Test |
| public void getPublicKeyData_invalidPublicKey_throws() throws Exception { |
| TestPrivateKeyTypeManager privateManager = new TestPrivateKeyTypeManager(); |
| TestPublicKeyTypeManager publicManager = new TestPublicKeyTypeManager(); |
| PrivateKeyManager<Void> manager = |
| new PrivateKeyManagerImpl<>(privateManager, publicManager, Void.class); |
| Ed25519PrivateKey privateKey = |
| Ed25519PrivateKey.newBuilder() |
| .setPublicKey( |
| Ed25519PublicKey.newBuilder() |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(33)))) |
| .setKeyValue(ByteString.copyFrom(Random.randBytes(32))) |
| .build(); |
| ByteString privateKeyByteString = privateKey.toByteString(); |
| |
| try { |
| manager.getPublicKeyData(privateKeyByteString); |
| fail(); |
| } catch (GeneralSecurityException e) { |
| assertExceptionContains(e, "validateKey(Ed25519PublicKey)"); |
| } |
| } |
| } |