Examples with AesGcmHkdfStreamingKeyFormat com.google.crypto.tink.proto.AesGcmHkdfStreamingKeyFormat used on opensource projects

Example 21 with AesGcmHkdfStreamingKeyFormat

use of com.google.crypto.tink.proto.AesGcmHkdfStreamingKeyFormat in project tink by google.

the class StreamingAeadKeyTemplatesTest method testAes128GcmHkdf_4KB.

@Test
public void testAes128GcmHkdf_4KB() throws Exception {
    KeyTemplate template = StreamingAeadKeyTemplates.AES128_GCM_HKDF_4KB;
    assertEquals(new AesGcmHkdfStreamingKeyManager().getKeyType(), template.getTypeUrl());
    assertEquals(OutputPrefixType.RAW, template.getOutputPrefixType());
    AesGcmHkdfStreamingKeyFormat format = AesGcmHkdfStreamingKeyFormat.parseFrom(template.getValue(), ExtensionRegistryLite.getEmptyRegistry());
    assertEquals(16, format.getKeySize());
    assertEquals(16, format.getParams().getDerivedKeySize());
    assertEquals(HashType.SHA256, format.getParams().getHkdfHashType());
    assertEquals(4096, format.getParams().getCiphertextSegmentSize());
}

Example 22 with AesGcmHkdfStreamingKeyFormat

use of com.google.crypto.tink.proto.AesGcmHkdfStreamingKeyFormat in project tink by google.

the class StreamingAeadKeyTemplates method createAesGcmHkdfStreamingKeyTemplate.

/**
 * @return a {@code KeyTemplate} containing a {@code AesGcmHkdfStreamingKeyFormat}
 *     with some specified parameters.
 */
public static KeyTemplate createAesGcmHkdfStreamingKeyTemplate(int mainKeySize, HashType hkdfHashType, int derivedKeySize, int ciphertextSegmentSize) {
    AesGcmHkdfStreamingParams keyParams = AesGcmHkdfStreamingParams.newBuilder().setCiphertextSegmentSize(ciphertextSegmentSize).setDerivedKeySize(derivedKeySize).setHkdfHashType(hkdfHashType).build();
    AesGcmHkdfStreamingKeyFormat format = AesGcmHkdfStreamingKeyFormat.newBuilder().setKeySize(mainKeySize).setParams(keyParams).build();
    return KeyTemplate.newBuilder().setValue(format.toByteString()).setTypeUrl(new AesGcmHkdfStreamingKeyManager().getKeyType()).setOutputPrefixType(OutputPrefixType.RAW).build();
}