Examples with FPEFF1Engine com.github.zhenwei.core.crypto.fpe.FPEFF1Engine used on opensource projects

Example 1 with FPEFF1Engine

use of com.github.zhenwei.core.crypto.fpe.FPEFF1Engine in project LinLong-Java by zhenwei1108.

the class BaseBlockCipher method engineSetMode.

protected void engineSetMode(String mode) throws NoSuchAlgorithmException {
    if (baseEngine == null) {
        throw new NoSuchAlgorithmException("no mode supported for this algorithm");
    }
    modeName = Strings.toUpperCase(mode);
    if (modeName.equals("ECB")) {
        ivLength = 0;
        cipher = new BufferedGenericBlockCipher(baseEngine);
    } else if (modeName.equals("CBC")) {
        ivLength = baseEngine.getBlockSize();
        cipher = new BufferedGenericBlockCipher(new CBCBlockCipher(baseEngine));
    } else if (modeName.startsWith("OFB")) {
        ivLength = baseEngine.getBlockSize();
        if (modeName.length() != 3) {
            int wordSize = Integer.parseInt(modeName.substring(3));
            cipher = new BufferedGenericBlockCipher(new OFBBlockCipher(baseEngine, wordSize));
        } else {
            cipher = new BufferedGenericBlockCipher(new OFBBlockCipher(baseEngine, 8 * baseEngine.getBlockSize()));
        }
    } else if (modeName.startsWith("CFB")) {
        ivLength = baseEngine.getBlockSize();
        if (modeName.length() != 3) {
            int wordSize = Integer.parseInt(modeName.substring(3));
            cipher = new BufferedGenericBlockCipher(new CFBBlockCipher(baseEngine, wordSize));
        } else {
            cipher = new BufferedGenericBlockCipher(new CFBBlockCipher(baseEngine, 8 * baseEngine.getBlockSize()));
        }
    } else if (modeName.startsWith("PGPCFB")) {
        boolean inlineIV = modeName.equals("PGPCFBWITHIV");
        if (!inlineIV && modeName.length() != 6) {
            throw new NoSuchAlgorithmException("no mode support for " + modeName);
        }
        ivLength = baseEngine.getBlockSize();
        cipher = new BufferedGenericBlockCipher(new PGPCFBBlockCipher(baseEngine, inlineIV));
    } else if (modeName.equals("OPENPGPCFB")) {
        ivLength = 0;
        cipher = new BufferedGenericBlockCipher(new OpenPGPCFBBlockCipher(baseEngine));
    } else if (modeName.equals("FF1")) {
        ivLength = 0;
        cipher = new BufferedFPEBlockCipher(new FPEFF1Engine(baseEngine));
    } else if (modeName.equals("FF3-1")) {
        ivLength = 0;
        cipher = new BufferedFPEBlockCipher(new FPEFF3_1Engine(baseEngine));
    } else if (modeName.equals("SIC")) {
        ivLength = baseEngine.getBlockSize();
        if (ivLength < 16) {
            throw new IllegalArgumentException("Warning: SIC-Mode can become a twotime-pad if the blocksize of the cipher is too small. Use a cipher with a block size of at least 128 bits (e.g. AES)");
        }
        fixedIv = false;
        cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(new SICBlockCipher(baseEngine)));
    } else if (modeName.equals("CTR")) {
        ivLength = baseEngine.getBlockSize();
        fixedIv = false;
        if (baseEngine instanceof DSTU7624Engine) {
            cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(new KCTRBlockCipher(baseEngine)));
        } else {
            cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(new SICBlockCipher(baseEngine)));
        }
    } else if (modeName.equals("GOFB")) {
        ivLength = baseEngine.getBlockSize();
        cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(new GOFBBlockCipher(baseEngine)));
    } else if (modeName.equals("GCFB")) {
        ivLength = baseEngine.getBlockSize();
        cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(new GCFBBlockCipher(baseEngine)));
    } else if (modeName.equals("CTS")) {
        ivLength = baseEngine.getBlockSize();
        cipher = new BufferedGenericBlockCipher(new CTSBlockCipher(new CBCBlockCipher(baseEngine)));
    } else if (modeName.equals("CCM")) {
        // CCM nonce 7..13 bytes
        ivLength = 12;
        if (baseEngine instanceof DSTU7624Engine) {
            cipher = new AEADGenericBlockCipher(new KCCMBlockCipher(baseEngine));
        } else {
            cipher = new AEADGenericBlockCipher(new CCMBlockCipher(baseEngine));
        }
    } else if (modeName.equals("OCB")) {
        if (engineProvider != null) {
            /*
         * RFC 7253 4.2. Nonce is a string of no more than 120 bits
         */
            ivLength = 15;
            cipher = new AEADGenericBlockCipher(new OCBBlockCipher(baseEngine, engineProvider.get()));
        } else {
            throw new NoSuchAlgorithmException("can't support mode " + mode);
        }
    } else if (modeName.equals("EAX")) {
        ivLength = baseEngine.getBlockSize();
        cipher = new AEADGenericBlockCipher(new EAXBlockCipher(baseEngine));
    } else if (modeName.equals("GCM-SIV")) {
        ivLength = 12;
        cipher = new AEADGenericBlockCipher(new GCMSIVBlockCipher(baseEngine));
    } else if (modeName.equals("GCM")) {
        if (baseEngine instanceof DSTU7624Engine) {
            ivLength = baseEngine.getBlockSize();
            cipher = new AEADGenericBlockCipher(new KGCMBlockCipher(baseEngine));
        } else {
            ivLength = 12;
            cipher = new AEADGenericBlockCipher(new GCMBlockCipher(baseEngine));
        }
    } else {
        throw new NoSuchAlgorithmException("can't support mode " + mode);
    }
}