Examples of javax.crypto.SecretKeyFactory.generateSecret()

javax.crypto.SecretKeyFactory.generateSecret()
Generate a secret key from the specified key specification. @param keySpec the key specification. @return a secret key. @throws InvalidKeySpecException if the specified key specification cannot be used to generate a secret key.

        byte[] desKeyData =
            { ( byte ) 0x01, ( byte ) 0x02, ( byte ) 0x03, ( byte ) 0x04, ( byte ) 0x05, ( byte ) 0x06, ( byte ) 0x07,
                ( byte ) 0x08 };
        DESKeySpec desKeySpec = new DESKeySpec( desKeyData );
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance( "DES" );
        SecretKey desKey = keyFactory.generateSecret( desKeySpec );
        assertEquals( "DES key size", 8, desKey.getEncoded().length );
        assertTrue( DESKeySpec.isParityAdjusted( desKey.getEncoded(), 0 ) );
    }

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     * Generates a SecretKey.
     */
    public static SecretKey newSecretKey(String algorithm, PBEKeySpec keySpec) {
        try {
            SecretKeyFactory factory = SecretKeyFactory.getInstance(algorithm);
            return factory.generateSecret(keySpec);
        } catch (NoSuchAlgorithmException e) {
            throw new IllegalArgumentException("Not a valid encryption algorithm", e);
        } catch (InvalidKeySpecException e) {
            throw new IllegalArgumentException("Not a valid secret key", e);
        }

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    private static byte[] pbkdf2(char[] password, byte[] salt, int iterations, int bytes)
        throws NoSuchAlgorithmException, InvalidKeySpecException
    {
        PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, bytes * 8);
        SecretKeyFactory skf = SecretKeyFactory.getInstance(PBKDF2_ALGORITHM);
        return skf.generateSecret(spec).getEncoded();
    }


    /**
     * Converts a string of hexadecimal characters into a byte array.
     *

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    private static byte[] pbkdf2(char[] password, byte[] salt, int iterations, int bytes)
        throws NoSuchAlgorithmException, InvalidKeySpecException
    {
        PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, bytes * 8);
        SecretKeyFactory skf = SecretKeyFactory.getInstance(PBKDF2_ALGORITHM);
        return skf.generateSecret(spec).getEncoded();
    }


    /**
     * Converts a string of hexadecimal characters into a byte array.
     *

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        byte[] saltBytes = new byte[ salt.readableBytes() ];
        salt.readBytes( saltBytes );


        KeySpec keySpec = new PBEKeySpec( passwordChars, saltBytes, iterations, keyLen * 8 );


        SecretKey secretKey = factory.generateSecret(keySpec);


        byte[] keyBytes = secretKey.getEncoded();
        return Unpooled.copiedBuffer( keyBytes );
    }
}

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    public void start() {
        try {
            this.cipherSpec = new PBEParameterSpec(salt, iterationCount);
            PBEKeySpec keySpec = new PBEKeySpec(keyStorePassword);
            SecretKeyFactory factory = SecretKeyFactory.getInstance(cipherAlgorithm);
            this.cipherKey = factory.generateSecret(keySpec);
        } catch (Exception e) {
            log.error("Error starting EncoderService", e);
        }
    }

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            char[] password = "somearbitrarycrazystringthatdoesnotmatter".toCharArray();
            byte[] passwordToEncode = args[2].getBytes("UTF-8");
            PBEParameterSpec cipherSpec = new PBEParameterSpec(salt, count);
            PBEKeySpec keySpec = new PBEKeySpec(password);
            SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");
            SecretKey cipherKey = factory.generateSecret(keySpec);
            String encodedPassword = encode64(passwordToEncode, "PBEwithMD5andDES",
               cipherKey, cipherSpec);
            System.err.println("Encoded password: MASK-"+encodedPassword);
         }
}

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        int count = COUNT;
        char[] password = KEY.toCharArray();
        PBEParameterSpec cipherSpec = new PBEParameterSpec(salt, count);
        PBEKeySpec keySpec = new PBEKeySpec(password);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");
        SecretKey cipherKey = factory.generateSecret(keySpec);
        return PBEUtils.decode64(encodedPassword, "PBEwithMD5andDES", cipherKey, cipherSpec);
    }


    /**
     * Encodes a plain text password using PBEwithMD5andDES and Base64.

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        int count = COUNT;
        char[] password = KEY.toCharArray();
        PBEParameterSpec cipherSpec = new PBEParameterSpec(salt, count);
        PBEKeySpec keySpec = new PBEKeySpec(password);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");
        SecretKey cipherKey = factory.generateSecret(keySpec);
        encodedPassword = PBEUtils.encode64(plainTextPassword.getBytes("UTF-8"), "PBEwithMD5andDES", cipherKey, cipherSpec);
        return encodedPassword;
    }


    /**

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  @Before
  public void before() throws Exception
  {
    SecretKeyFactory factory = SecretKeyFactory.getInstance(ALGORITHM);
    Key key = factory.generateSecret(new DESKeySpec(Base64.decodeBase64(KEY.getBytes())));
    
    this.codec = new CipherCodec(key);
  }
  
  @Test

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