Examples with AlgorithmParameterSpec java.security.spec.AlgorithmParameterSpec used on opensource projects

Example 81 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project i2p.i2p by i2p.

the class SigUtil method fromJavaKey.

/**
 *  Use if SigType is unknown.
 *  For efficiency, use fromJavakey(pk, type) if type is known.
 *
 *  @param pk JAVA key!
 *  @throws IllegalArgumentException on unknown type
 *  @since 0.9.18
 */
public static SigningPrivateKey fromJavaKey(PrivateKey pk) throws GeneralSecurityException {
    if (pk instanceof DSAPrivateKey) {
        return fromJavaKey((DSAPrivateKey) pk);
    }
    if (pk instanceof ECPrivateKey) {
        ECPrivateKey k = (ECPrivateKey) pk;
        AlgorithmParameterSpec spec = k.getParams();
        SigType type;
        if (spec.equals(SigType.ECDSA_SHA256_P256.getParams()))
            type = SigType.ECDSA_SHA256_P256;
        else if (spec.equals(SigType.ECDSA_SHA384_P384.getParams()))
            type = SigType.ECDSA_SHA384_P384;
        else if (spec.equals(SigType.ECDSA_SHA512_P521.getParams()))
            type = SigType.ECDSA_SHA512_P521;
        else
            throw new IllegalArgumentException("Unknown EC type");
        return fromJavaKey(k, type);
    }
    if (pk instanceof EdDSAPrivateKey) {
        return fromJavaKey((EdDSAPrivateKey) pk, SigType.EdDSA_SHA512_Ed25519);
    }
    if (pk instanceof RSAPrivateKey) {
        RSAPrivateKey k = (RSAPrivateKey) pk;
        int sz = k.getModulus().bitLength();
        SigType type;
        if (sz <= ((RSAKeyGenParameterSpec) SigType.RSA_SHA256_2048.getParams()).getKeysize())
            type = SigType.RSA_SHA256_2048;
        else if (sz <= ((RSAKeyGenParameterSpec) SigType.RSA_SHA384_3072.getParams()).getKeysize())
            type = SigType.RSA_SHA384_3072;
        else if (sz <= ((RSAKeyGenParameterSpec) SigType.RSA_SHA512_4096.getParams()).getKeysize())
            type = SigType.RSA_SHA512_4096;
        else
            throw new IllegalArgumentException("Unknown RSA type");
        return fromJavaKey(k, type);
    }
    throw new IllegalArgumentException("Unknown type: " + pk.getClass());
}

Example 82 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project XUtil by xuexiangjys.

the class EncryptUtils method desTemplate.

/**
 * DES 加密模板
 *
 * @param data           数据
 * @param key            秘钥
 * @param algorithm      加密算法
 * @param transformation 转变
 * @param isEncrypt      {@code true}: 加密 {@code false}: 解密
 * @return 密文或者明文，适用于 DES，3DES，AES
 */
private static byte[] desTemplate(final byte[] data, final byte[] key, final String algorithm, final String transformation, final byte[] iv, final boolean isEncrypt) {
    if (data == null || data.length == 0 || key == null || key.length == 0)
        return null;
    try {
        SecretKeySpec keySpec = new SecretKeySpec(key, algorithm);
        Cipher cipher = Cipher.getInstance(transformation);
        if (iv == null || iv.length == 0) {
            cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec);
        } else {
            AlgorithmParameterSpec params = new IvParameterSpec(iv);
            cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, params);
        }
        return cipher.doFinal(data);
    } catch (Throwable e) {
        e.printStackTrace();
        return null;
    }
}

Example 83 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project credhub by cloudfoundry-incubator.

the class EncryptionService method encrypt.

public EncryptedValue encrypt(UUID canaryUuid, Key key, String value) throws Exception {
    byte[] nonce = generateNonce();
    AlgorithmParameterSpec parameterSpec = generateParameterSpec(nonce);
    CipherWrapper encryptionCipher = getCipher();
    encryptionCipher.init(Cipher.ENCRYPT_MODE, key, parameterSpec);
    byte[] encrypted = encryptionCipher.doFinal(value.getBytes(CHARSET));
    return new EncryptedValue(canaryUuid, encrypted, nonce);
}

Example 84 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project jruby-openssl by jruby.

the class Cipher method doInitCipher.

private void doInitCipher(final Ruby runtime) {
    if (isDebug(runtime)) {
        dumpVars(runtime.getOut(), "doInitCipher()");
    }
    checkCipherNotNull(runtime);
    if (key == null) {
        // key = emptyKey(keyLength);
        throw newCipherError(runtime, "key not specified");
    }
    try {
        // ECB mode is the only mode that does not require an IV
        if ("ECB".equalsIgnoreCase(cryptoMode)) {
            cipher.init(encryptMode ? ENCRYPT_MODE : DECRYPT_MODE, new SimpleSecretKey(getCipherAlgorithm(), this.key));
        } else {
            // if no IV yet, start out with all \0s
            if (realIV == null)
                realIV = new byte[ivLength];
            if ("RC2".equalsIgnoreCase(cryptoBase)) {
                cipher.init(encryptMode ? ENCRYPT_MODE : DECRYPT_MODE, new SimpleSecretKey("RC2", this.key), new RC2ParameterSpec(this.key.length * 8, this.realIV));
            } else if ("RC4".equalsIgnoreCase(cryptoBase)) {
                cipher.init(encryptMode ? ENCRYPT_MODE : DECRYPT_MODE, new SimpleSecretKey("RC4", this.key));
            } else {
                final AlgorithmParameterSpec ivSpec;
                if ("GCM".equalsIgnoreCase(cryptoMode)) {
                    // e.g. 'aes-128-gcm'
                    ivSpec = new GCMParameterSpec(getAuthTagLength() * 8, this.realIV);
                } else {
                    ivSpec = new IvParameterSpec(this.realIV);
                }
                cipher.init(encryptMode ? ENCRYPT_MODE : DECRYPT_MODE, new SimpleSecretKey(getCipherAlgorithm(), this.key), ivSpec);
            }
        }
    } catch (InvalidKeyException e) {
        throw newCipherError(runtime, e + "\n possibly you need to install Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files for your JRE");
    } catch (Exception e) {
        debugStackTrace(runtime, e);
        throw newCipherError(runtime, e);
    }
    cipherInited = true;
    processedDataBytes = 0;
// outBuffer = new ByteList(keyLength);
}

Example 85 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project mule by mulesoft.

the class AbstractJCEEncryptionStrategy method createAndInitCiphers.

protected void createAndInitCiphers() throws GeneralSecurityException {
    encryptCipher = Cipher.getInstance(getAlgorithm());
    decryptCipher = Cipher.getInstance(getAlgorithm());
    AlgorithmParameterSpec paramSpec = createAlgorithmParameterSpec();
    if (paramSpec != null) {
        encryptCipher.init(Cipher.ENCRYPT_MODE, secretKey, paramSpec);
        decryptCipher.init(Cipher.DECRYPT_MODE, secretKey, paramSpec);
    } else {
        encryptCipher.init(Cipher.ENCRYPT_MODE, secretKey);
        decryptCipher.init(Cipher.DECRYPT_MODE, secretKey);
    }
}