Examples of org.bouncycastle.crypto.PBEParametersGenerator

        dOut.write(salt);
        dOut.writeInt(iterationCount);


        HMac                    hMac = new HMac(new SHA1Digest());
        MacOutputStream         mOut = new MacOutputStream(dOut, hMac);
        PBEParametersGenerator  pbeGen = new PKCS12ParametersGenerator(new SHA1Digest());
        byte[]                  passKey = PBEParametersGenerator.PKCS12PasswordToBytes(password);


        pbeGen.init(passKey, salt, iterationCount);


        hMac.init(pbeGen.generateDerivedMacParameters(hMac.getMacSize()));


        for (int i = 0; i != passKey.length; i++)
        {
            passKey[i] = 0;
        }

        return androidPBKDF2(pwArray, salt, rounds, useUtf8);
    }


    public static SecretKey androidPBKDF2(char[] pwArray, byte[] salt,
            int rounds, boolean useUtf8) {
        PBEParametersGenerator generator = new PKCS5S2ParametersGenerator();
        // Android treats password bytes as ASCII, which is obviously
        // not the case when an AES key is used as a 'password'.
        // Use the same method for compatibility.


        // Android 4.4 however uses all char bytes
        // useUtf8 needs to be true for KitKat
        byte[] pwBytes = useUtf8 ? PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(pwArray)
                : PBEParametersGenerator.PKCS5PasswordToBytes(pwArray);
        generator.init(pwBytes, salt, rounds);
        KeyParameter params = (KeyParameter) generator
                .generateDerivedParameters(PBKDF2_KEY_SIZE);


        return new SecretKeySpec(params.getKey(), "AES");
    }

Examples of org.bouncycastle.crypto.PBEParametersGenerator

Related Classes of org.bouncycastle.crypto.PBEParametersGenerator