Examples with SkeinParameterSpec com.github.zhenwei.provider.jcajce.spec.SkeinParameterSpec used on opensource projects

Example 1 with SkeinParameterSpec

use of com.github.zhenwei.provider.jcajce.spec.SkeinParameterSpec in project LinLong-Java by zhenwei1108.

the class BaseMac method engineInit.

protected void engineInit(Key key, final AlgorithmParameterSpec params) throws InvalidKeyException, InvalidAlgorithmParameterException {
    CipherParameters param;
    if (key == null) {
        throw new InvalidKeyException("key is null");
    }
    if (key instanceof PKCS12Key) {
        SecretKey k;
        PBEParameterSpec pbeSpec;
        try {
            k = (SecretKey) key;
        } catch (Exception e) {
            throw new InvalidKeyException("PKCS12 requires a SecretKey/PBEKey");
        }
        try {
            pbeSpec = (PBEParameterSpec) params;
        } catch (Exception e) {
            throw new InvalidAlgorithmParameterException("PKCS12 requires a PBEParameterSpec");
        }
        if (k instanceof PBEKey && pbeSpec == null) {
            pbeSpec = new PBEParameterSpec(((PBEKey) k).getSalt(), ((PBEKey) k).getIterationCount());
        }
        int digest = SHA1;
        int keySize = 160;
        if (macEngine.getAlgorithmName().startsWith("GOST")) {
            digest = GOST3411;
            keySize = 256;
        } else if (macEngine instanceof HMac) {
            if (!macEngine.getAlgorithmName().startsWith("SHA-1")) {
                if (macEngine.getAlgorithmName().startsWith("SHA-224")) {
                    digest = SHA224;
                    keySize = 224;
                } else if (macEngine.getAlgorithmName().startsWith("SHA-256")) {
                    digest = SHA256;
                    keySize = 256;
                } else if (macEngine.getAlgorithmName().startsWith("SHA-384")) {
                    digest = SHA384;
                    keySize = 384;
                } else if (macEngine.getAlgorithmName().startsWith("SHA-512")) {
                    digest = SHA512;
                    keySize = 512;
                } else if (macEngine.getAlgorithmName().startsWith("RIPEMD160")) {
                    digest = RIPEMD160;
                    keySize = 160;
                } else {
                    throw new InvalidAlgorithmParameterException("no PKCS12 mapping for HMAC: " + macEngine.getAlgorithmName());
                }
            }
        }
        // TODO: add correct handling for other digests
        param = Util.makePBEMacParameters(k, PKCS12, digest, keySize, pbeSpec);
    } else if (key instanceof BCPBEKey) {
        BCPBEKey k = (BCPBEKey) key;
        if (k.getParam() != null) {
            param = k.getParam();
        } else if (params instanceof PBEParameterSpec) {
            param = Util.makePBEMacParameters(k, params);
        } else {
            throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
        }
    } else {
        if (params instanceof PBEParameterSpec) {
            throw new InvalidAlgorithmParameterException("inappropriate parameter type: " + params.getClass().getName());
        }
        param = new KeyParameter(key.getEncoded());
    }
    final KeyParameter keyParam;
    if (param instanceof ParametersWithIV) {
        keyParam = (KeyParameter) ((ParametersWithIV) param).getParameters();
    } else {
        keyParam = (KeyParameter) param;
    }
    if (params instanceof AEADParameterSpec) {
        AEADParameterSpec aeadSpec = (AEADParameterSpec) params;
        param = new AEADParameters(keyParam, aeadSpec.getMacSizeInBits(), aeadSpec.getNonce(), aeadSpec.getAssociatedData());
    } else if (params instanceof IvParameterSpec) {
        param = new ParametersWithIV(keyParam, ((IvParameterSpec) params).getIV());
    } else if (params instanceof RC2ParameterSpec) {
        param = new ParametersWithIV(new RC2Parameters(keyParam.getKey(), ((RC2ParameterSpec) params).getEffectiveKeyBits()), ((RC2ParameterSpec) params).getIV());
    } else if (params instanceof SkeinParameterSpec) {
        param = new SkeinParameters.Builder(copyMap(((SkeinParameterSpec) params).getParameters())).setKey(keyParam.getKey()).build();
    } else if (params == null) {
        param = new KeyParameter(key.getEncoded());
    } else if (gcmSpecClass != null && gcmSpecClass.isAssignableFrom(params.getClass())) {
        param = GcmSpecUtil.extractAeadParameters(keyParam, params);
    } else if (!(params instanceof PBEParameterSpec)) {
        throw new InvalidAlgorithmParameterException("unknown parameter type: " + params.getClass().getName());
    }
    try {
        macEngine.init(param);
    } catch (Exception e) {
        throw new InvalidAlgorithmParameterException("cannot initialize MAC: " + e.getMessage());
    }
}