Class PBEParametersGenerator

  • Direct Known Subclasses:
    PKCS5S2ParametersGenerator

    public abstract class PBEParametersGenerator
    extends java.lang.Object
    super class for all Password Based Encryption (PBE) parameter generator classes.
    • Field Detail

      • password

        protected byte[] password
      • salt

        protected byte[] salt
      • iterationCount

        protected int iterationCount
    • Constructor Detail

      • PBEParametersGenerator

        protected PBEParametersGenerator()
        base constructor.
    • Method Detail

      • init

        public void init​(byte[] password,
                         byte[] salt,
                         int iterationCount)
        initialise the PBE generator.
        Parameters:
        password - the password converted into bytes (see below).
        salt - the salt to be mixed with the password.
        iterationCount - the number of iterations the "mixing" function is to be applied for.
      • getPassword

        public byte[] getPassword()
        return the password byte array.
        Returns:
        the password byte array.
      • getSalt

        public byte[] getSalt()
        return the salt byte array.
        Returns:
        the salt byte array.
      • getIterationCount

        public int getIterationCount()
        return the iteration count.
        Returns:
        the iteration count.
      • generateDerivedParameters

        public abstract CipherParameters generateDerivedParameters​(int keySize)
        generate derived parameters for a key of length keySize.
        Parameters:
        keySize - the length, in bits, of the key required.
        Returns:
        a parameters object representing a key.
      • PKCS5PasswordToUTF8Bytes

        public static byte[] PKCS5PasswordToUTF8Bytes​(char[] password)
        converts a password to a byte array according to the scheme in PKCS5 (UTF-8, no padding)
        Parameters:
        password - a character array representing the password.
        Returns:
        a byte array representing the password.