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

Example 1 with EciesAeadHkdfPrivateKey

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

the class EciesAeadHkdfPrivateKeyManagerTest method testNewKey.

@Test
public void testNewKey() throws Exception {
    EllipticCurveType curve = EllipticCurveType.NIST_P384;
    HashType hashType = HashType.SHA256;
    EcPointFormat pointFormat = EcPointFormat.UNCOMPRESSED;
    KeyTemplate demKeyTemplate = AeadKeyTemplates.AES128_CTR_HMAC_SHA256;
    byte[] salt = "some salt".getBytes("UTF-8");
    EciesAeadHkdfParams params = HybridKeyTemplates.createEciesAeadHkdfParams(curve, hashType, pointFormat, demKeyTemplate, salt);
    EciesAeadHkdfPrivateKeyManager manager = new EciesAeadHkdfPrivateKeyManager();
    EciesAeadHkdfPrivateKey keyProto = (EciesAeadHkdfPrivateKey) manager.newKey(EciesAeadHkdfKeyFormat.newBuilder().setParams(params).build());
    assertEquals(params, keyProto.getPublicKey().getParams());
    Key primaryPriv = TestUtil.createKey(TestUtil.createKeyData(keyProto, EciesAeadHkdfPrivateKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PRIVATE), 8, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key primaryPub = TestUtil.createKey(TestUtil.createKeyData(keyProto.getPublicKey(), EciesAeadHkdfPublicKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PUBLIC), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    KeysetHandle keysetHandlePub = TestUtil.createKeysetHandle(TestUtil.createKeyset(primaryPub));
    KeysetHandle keysetHandlePriv = TestUtil.createKeysetHandle(TestUtil.createKeyset(primaryPriv));
    HybridEncrypt hybridEncrypt = HybridEncryptFactory.getPrimitive(keysetHandlePub);
    HybridDecrypt hybridDecrypt = HybridDecryptFactory.getPrimitive(keysetHandlePriv);
    byte[] plaintext = Random.randBytes(20);
    byte[] contextInfo = Random.randBytes(20);
    byte[] ciphertext = hybridEncrypt.encrypt(plaintext, contextInfo);
    assertArrayEquals(plaintext, hybridDecrypt.decrypt(ciphertext, contextInfo));
}

Example 2 with EciesAeadHkdfPrivateKey

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

the class EciesAeadHkdfPrivateKeyManagerTest method testGetPublicKeyData.

/**
 * Tests that a public key is extracted properly from a private key.
 */
@Test
public void testGetPublicKeyData() throws Exception {
    KeysetHandle privateHandle = KeysetHandle.generateNew(HybridKeyTemplates.ECIES_P256_HKDF_HMAC_SHA256_AES128_CTR_HMAC_SHA256);
    KeyData privateKeyData = TestUtil.getKeyset(privateHandle).getKey(0).getKeyData();
    EciesAeadHkdfPrivateKeyManager privateManager = new EciesAeadHkdfPrivateKeyManager();
    KeyData publicKeyData = privateManager.getPublicKeyData(privateKeyData.getValue());
    assertEquals(EciesAeadHkdfPublicKeyManager.TYPE_URL, publicKeyData.getTypeUrl());
    assertEquals(KeyData.KeyMaterialType.ASYMMETRIC_PUBLIC, publicKeyData.getKeyMaterialType());
    EciesAeadHkdfPrivateKey privateKey = EciesAeadHkdfPrivateKey.parseFrom(privateKeyData.getValue());
    assertArrayEquals(privateKey.getPublicKey().toByteArray(), publicKeyData.getValue().toByteArray());
    EciesAeadHkdfPublicKeyManager publicManager = new EciesAeadHkdfPublicKeyManager();
    HybridEncrypt hybridEncrypt = publicManager.getPrimitive(publicKeyData.getValue());
    HybridDecrypt hybridDecrypt = privateManager.getPrimitive(privateKeyData.getValue());
    byte[] message = Random.randBytes(20);
    byte[] contextInfo = Random.randBytes(20);
    assertArrayEquals(message, hybridDecrypt.decrypt(hybridEncrypt.encrypt(message, contextInfo), contextInfo));
}

Example 3 with EciesAeadHkdfPrivateKey

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

the class HybridEncryptFactoryTest method testBasicEncryption.

@Test
public void testBasicEncryption() throws Exception {
    EllipticCurveType curve = EllipticCurveType.NIST_P384;
    HashType hashType = HashType.SHA256;
    EcPointFormat primaryPointFormat = EcPointFormat.UNCOMPRESSED;
    EcPointFormat rawPointFormat = EcPointFormat.COMPRESSED;
    KeyTemplate primaryDemKeyTemplate = AeadKeyTemplates.AES128_CTR_HMAC_SHA256;
    KeyTemplate rawDemKeyTemplate = AeadKeyTemplates.AES128_CTR_HMAC_SHA256;
    byte[] primarySalt = "some salt".getBytes("UTF-8");
    byte[] rawSalt = "other salt".getBytes("UTF-8");
    EciesAeadHkdfPrivateKey primaryPrivProto = TestUtil.generateEciesAeadHkdfPrivKey(curve, hashType, primaryPointFormat, primaryDemKeyTemplate, primarySalt);
    Key primaryPriv = TestUtil.createKey(TestUtil.createKeyData(primaryPrivProto, EciesAeadHkdfPrivateKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PRIVATE), 8, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key primaryPub = TestUtil.createKey(TestUtil.createKeyData(primaryPrivProto.getPublicKey(), EciesAeadHkdfPublicKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PUBLIC), 42, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    EciesAeadHkdfPrivateKey rawPrivProto = TestUtil.generateEciesAeadHkdfPrivKey(curve, hashType, rawPointFormat, rawDemKeyTemplate, rawSalt);
    Key rawPriv = TestUtil.createKey(TestUtil.createKeyData(rawPrivProto, EciesAeadHkdfPrivateKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PRIVATE), 11, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    Key rawPub = TestUtil.createKey(TestUtil.createKeyData(rawPrivProto.getPublicKey(), EciesAeadHkdfPublicKeyManager.TYPE_URL, KeyData.KeyMaterialType.ASYMMETRIC_PUBLIC), 43, KeyStatusType.ENABLED, OutputPrefixType.RAW);
    KeysetHandle keysetHandlePub = TestUtil.createKeysetHandle(TestUtil.createKeyset(primaryPub, rawPub));
    KeysetHandle keysetHandlePriv = TestUtil.createKeysetHandle(TestUtil.createKeyset(primaryPriv, rawPriv));
    HybridEncrypt hybridEncrypt = HybridEncryptFactory.getPrimitive(keysetHandlePub);
    HybridDecrypt hybridDecrypt = HybridDecryptFactory.getPrimitive(keysetHandlePriv);
    byte[] plaintext = Random.randBytes(20);
    byte[] contextInfo = Random.randBytes(20);
    byte[] ciphertext = hybridEncrypt.encrypt(plaintext, contextInfo);
    assertArrayEquals(plaintext, hybridDecrypt.decrypt(ciphertext, contextInfo));
}

Example 4 with EciesAeadHkdfPrivateKey

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

the class EciesAeadHkdfPrivateKeyManager method getPrimitive.

/**
 * @param recipientKey {@code EciesAeadHkdfPrivateKey} proto
 */
@Override
public HybridDecrypt getPrimitive(MessageLite recipientKey) throws GeneralSecurityException {
    if (!(recipientKey instanceof EciesAeadHkdfPrivateKey)) {
        throw new GeneralSecurityException("expected EciesAeadHkdfPrivateKey proto");
    }
    EciesAeadHkdfPrivateKey recipientKeyProto = (EciesAeadHkdfPrivateKey) recipientKey;
    validate(recipientKeyProto);
    EciesAeadHkdfParams eciesParams = recipientKeyProto.getPublicKey().getParams();
    EciesHkdfKemParams kemParams = eciesParams.getKemParams();
    ECPrivateKey recipientPrivateKey = EllipticCurves.getEcPrivateKey(HybridUtil.toCurveType(kemParams.getCurveType()), recipientKeyProto.getKeyValue().toByteArray());
    EciesAeadHkdfDemHelper demHelper = new RegistryEciesAeadHkdfDemHelper(eciesParams.getDemParams().getAeadDem());
    return new EciesAeadHkdfHybridDecrypt(recipientPrivateKey, kemParams.getHkdfSalt().toByteArray(), HybridUtil.toHmacAlgo(kemParams.getHkdfHashType()), HybridUtil.toPointFormatType(eciesParams.getEcPointFormat()), demHelper);
}