com.amazonaws.encryptionsdk.caching.LocalCryptoMaterialsCache Java Examples

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Example #1

Source File: AwsCryptoTest.java From aws-encryption-sdk-java with Apache License 2.0

6 votes

@Test
public void estimateCiphertextSize_usesCachedKeys() throws Exception {
    // Make sure estimateCiphertextSize works with cached CMMs
    CryptoMaterialsManager cmm = spy(new DefaultCryptoMaterialsManager(masterKeyProvider));

    CachingCryptoMaterialsManager cache = CachingCryptoMaterialsManager.newBuilder()
            .withBackingMaterialsManager(cmm)
            .withMaxAge(Long.MAX_VALUE, TimeUnit.SECONDS)
            .withCache(new LocalCryptoMaterialsCache(1))
            .withMessageUseLimit(9999)
            .withByteUseLimit(501)
            .build();

    // These estimates should be cached, and should not consume any bytes from the byte use limit.
    encryptionClient_.estimateCiphertextSize(cache, 500, new HashMap<>());
    encryptionClient_.estimateCiphertextSize(cache, 500, new HashMap<>());

    encryptionClient_.encryptData(cache, new byte[500]);

    verify(cmm, times(1)).getMaterialsForEncrypt(any());
}