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

Example 6 with EciesAeadHkdfPublicKey

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

the class EciesAeadHkdfPrivateKeyManager method keyFactory.

@Override
public KeyFactory<EciesAeadHkdfKeyFormat, EciesAeadHkdfPrivateKey> keyFactory() {
    return new KeyFactory<EciesAeadHkdfKeyFormat, EciesAeadHkdfPrivateKey>(EciesAeadHkdfKeyFormat.class) {

        @Override
        public void validateKeyFormat(EciesAeadHkdfKeyFormat eciesKeyFormat) throws GeneralSecurityException {
            HybridUtil.validate(eciesKeyFormat.getParams());
        }

        @Override
        public EciesAeadHkdfKeyFormat parseKeyFormat(ByteString byteString) throws InvalidProtocolBufferException {
            return EciesAeadHkdfKeyFormat.parseFrom(byteString, ExtensionRegistryLite.getEmptyRegistry());
        }

        @Override
        public EciesAeadHkdfPrivateKey createKey(EciesAeadHkdfKeyFormat eciesKeyFormat) throws GeneralSecurityException {
            EciesHkdfKemParams kemParams = eciesKeyFormat.getParams().getKemParams();
            KeyPair keyPair = EllipticCurves.generateKeyPair(HybridUtil.toCurveType(kemParams.getCurveType()));
            ECPublicKey pubKey = (ECPublicKey) keyPair.getPublic();
            ECPrivateKey privKey = (ECPrivateKey) keyPair.getPrivate();
            ECPoint w = pubKey.getW();
            // Creates EciesAeadHkdfPublicKey.
            EciesAeadHkdfPublicKey eciesPublicKey = EciesAeadHkdfPublicKey.newBuilder().setVersion(getVersion()).setParams(eciesKeyFormat.getParams()).setX(ByteString.copyFrom(w.getAffineX().toByteArray())).setY(ByteString.copyFrom(w.getAffineY().toByteArray())).build();
            // Creates EciesAeadHkdfPrivateKey.
            return EciesAeadHkdfPrivateKey.newBuilder().setVersion(getVersion()).setPublicKey(eciesPublicKey).setKeyValue(ByteString.copyFrom(privKey.getS().toByteArray())).build();
        }

        @Override
        public Map<String, KeyFactory.KeyFormat<EciesAeadHkdfKeyFormat>> keyFormats() throws GeneralSecurityException {
            Map<String, KeyFactory.KeyFormat<EciesAeadHkdfKeyFormat>> result = new HashMap<>();
            result.put("ECIES_P256_HKDF_HMAC_SHA256_AES128_GCM", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.UNCOMPRESSED, KeyTemplates.get("AES128_GCM"), EMPTY_SALT, KeyTemplate.OutputPrefixType.TINK));
            result.put("ECIES_P256_HKDF_HMAC_SHA256_AES128_GCM_RAW", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.UNCOMPRESSED, KeyTemplates.get("AES128_GCM"), EMPTY_SALT, KeyTemplate.OutputPrefixType.RAW));
            result.put("ECIES_P256_COMPRESSED_HKDF_HMAC_SHA256_AES128_GCM", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.COMPRESSED, KeyTemplates.get("AES128_GCM"), EMPTY_SALT, KeyTemplate.OutputPrefixType.TINK));
            result.put("ECIES_P256_COMPRESSED_HKDF_HMAC_SHA256_AES128_GCM_RAW", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.COMPRESSED, KeyTemplates.get("AES128_GCM"), EMPTY_SALT, KeyTemplate.OutputPrefixType.RAW));
            // backward compatibility with HybridKeyTemplates
            result.put("ECIES_P256_HKDF_HMAC_SHA256_AES128_GCM_COMPRESSED_WITHOUT_PREFIX", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.COMPRESSED, KeyTemplates.get("AES128_GCM"), EMPTY_SALT, KeyTemplate.OutputPrefixType.RAW));
            result.put("ECIES_P256_HKDF_HMAC_SHA256_AES128_CTR_HMAC_SHA256", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.UNCOMPRESSED, KeyTemplates.get("AES128_CTR_HMAC_SHA256"), EMPTY_SALT, KeyTemplate.OutputPrefixType.TINK));
            result.put("ECIES_P256_HKDF_HMAC_SHA256_AES128_CTR_HMAC_SHA256_RAW", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.UNCOMPRESSED, KeyTemplates.get("AES128_CTR_HMAC_SHA256"), EMPTY_SALT, KeyTemplate.OutputPrefixType.RAW));
            result.put("ECIES_P256_COMPRESSED_HKDF_HMAC_SHA256_AES128_CTR_HMAC_SHA256", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.COMPRESSED, KeyTemplates.get("AES128_CTR_HMAC_SHA256"), EMPTY_SALT, KeyTemplate.OutputPrefixType.TINK));
            result.put("ECIES_P256_COMPRESSED_HKDF_HMAC_SHA256_AES128_CTR_HMAC_SHA256_RAW", createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.COMPRESSED, KeyTemplates.get("AES128_CTR_HMAC_SHA256"), EMPTY_SALT, KeyTemplate.OutputPrefixType.RAW));
            return Collections.unmodifiableMap(result);
        }
    };
}

Example 7 with EciesAeadHkdfPublicKey

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

the class EciesAeadHkdfPublicKeyManagerTest method validateKey_invalidPointFormat_throws.

@Test
public void validateKey_invalidPointFormat_throws() throws Exception {
    EciesAeadHkdfPrivateKey privateKey = createValidPrivateKey();
    EciesAeadHkdfPublicKey publicKey = privateManager.getPublicKey(privateKey);
    EciesAeadHkdfPublicKey invalidKey = EciesAeadHkdfPublicKey.newBuilder().setParams(createKeyFormat(EllipticCurveType.NIST_P256, HashType.SHA256, EcPointFormat.UNKNOWN_FORMAT, AeadKeyTemplates.AES128_CTR_HMAC_SHA256, "some salt".getBytes("UTF-8")).getParams()).build();
    assertThrows(GeneralSecurityException.class, () -> publicManager.validateKey(invalidKey));
}

Example 8 with EciesAeadHkdfPublicKey

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

the class EciesAeadHkdfPrivateKeyManagerTest method getPublicKey_values.

@Test
public void getPublicKey_values() throws Exception {
    EciesAeadHkdfPrivateKey key = createValidKey();
    EciesAeadHkdfPublicKey publicKey = manager.getPublicKey(key);
    assertThat(publicKey).isEqualTo(key.getPublicKey());
}

Example 9 with EciesAeadHkdfPublicKey

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

the class TestUtil method generateEciesAeadHkdfPrivKey.

/**
 * @return a freshly generated {@code EciesAeadHkdfPrivateKey} constructed with specified
 *     parameters.
 */
public static EciesAeadHkdfPrivateKey generateEciesAeadHkdfPrivKey(EllipticCurveType curve, HashType hashType, EcPointFormat pointFormat, KeyTemplate demKeyTemplate, byte[] salt) throws Exception {
    ECParameterSpec ecParams;
    switch(curve) {
        case NIST_P256:
            ecParams = EllipticCurves.getNistP256Params();
            break;
        case NIST_P384:
            ecParams = EllipticCurves.getNistP384Params();
            break;
        case NIST_P521:
            ecParams = EllipticCurves.getNistP521Params();
            break;
        default:
            throw new NoSuchAlgorithmException("Curve not implemented:" + curve);
    }
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
    keyGen.initialize(ecParams);
    KeyPair keyPair = keyGen.generateKeyPair();
    ECPublicKey pubKey = (ECPublicKey) keyPair.getPublic();
    ECPrivateKey privKey = (ECPrivateKey) keyPair.getPrivate();
    ECPoint w = pubKey.getW();
    EciesAeadHkdfPublicKey eciesPubKey = createEciesAeadHkdfPubKey(curve, hashType, pointFormat, demKeyTemplate, w.getAffineX().toByteArray(), w.getAffineY().toByteArray(), salt);
    return createEciesAeadHkdfPrivKey(eciesPubKey, privKey.getS().toByteArray());
}