1 // Copyright 2024 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 //////////////////////////////////////////////////////////////////////////////// 16 17 package com.google.crypto.tink.daead; 18 19 import static com.google.common.truth.Truth.assertThat; 20 import static org.junit.Assert.assertThrows; 21 22 import com.google.crypto.tink.DeterministicAead; 23 import com.google.crypto.tink.KeysetHandle; 24 import com.google.crypto.tink.config.internal.TinkFipsUtil; 25 import com.google.crypto.tink.daead.AesSivParameters.Variant; 26 import com.google.crypto.tink.daead.internal.AesSivProtoSerialization; 27 import com.google.crypto.tink.util.SecretBytes; 28 import java.security.GeneralSecurityException; 29 import org.junit.Assume; 30 import org.junit.Test; 31 import org.junit.runner.RunWith; 32 import org.junit.runners.JUnit4; 33 34 @RunWith(JUnit4.class) 35 public class DeterministicAeadConfigurationV0Test { 36 @Test config_throwsIfInFipsMode()37 public void config_throwsIfInFipsMode() throws Exception { 38 Assume.assumeTrue(TinkFipsUtil.useOnlyFips()); 39 40 assertThrows(GeneralSecurityException.class, DeterministicAeadConfigurationV0::get); 41 } 42 43 @Test config_containsAesSivForDeterministicAead()44 public void config_containsAesSivForDeterministicAead() throws Exception { 45 Assume.assumeFalse(TinkFipsUtil.useOnlyFips()); 46 47 AesSivProtoSerialization.register(); 48 AesSivParameters parameters = 49 AesSivParameters.builder().setKeySizeBytes(64).setVariant(Variant.NO_PREFIX).build(); 50 AesSivKey key = 51 AesSivKey.builder() 52 .setParameters(parameters) 53 .setKeyBytes(SecretBytes.randomBytes(64)) 54 .build(); 55 KeysetHandle keysetHandle = 56 KeysetHandle.newBuilder() 57 .addEntry(KeysetHandle.importKey(key).withRandomId().makePrimary()) 58 .build(); 59 60 assertThat( 61 keysetHandle.getPrimitive( 62 DeterministicAeadConfigurationV0.get(), DeterministicAead.class)) 63 .isNotNull(); 64 } 65 66 @Test config_disallowsNon64ByteKeyForAesSiv()67 public void config_disallowsNon64ByteKeyForAesSiv() throws Exception { 68 Assume.assumeFalse(TinkFipsUtil.useOnlyFips()); 69 70 AesSivProtoSerialization.register(); 71 AesSivParameters parameters = 72 AesSivParameters.builder().setKeySizeBytes(32).setVariant(Variant.NO_PREFIX).build(); 73 AesSivKey key = 74 AesSivKey.builder() 75 .setParameters(parameters) 76 .setKeyBytes(SecretBytes.randomBytes(32)) 77 .build(); 78 KeysetHandle keysetHandle = 79 KeysetHandle.newBuilder() 80 .addEntry(KeysetHandle.importKey(key).withRandomId().makePrimary()) 81 .build(); 82 83 assertThrows( 84 GeneralSecurityException.class, 85 () -> 86 keysetHandle.getPrimitive( 87 DeterministicAeadConfigurationV0.get(), DeterministicAead.class)); 88 } 89 } 90