Class PKCS5S2ParametersGenerator


  • public class PKCS5S2ParametersGenerator
    extends PBEParametersGenerator
    Generator for PBE derived keys and ivs as defined by PKCS 5 V2.0 Scheme 2. This generator uses a SHA-1 HMac as the calculation function.

    The document this implementation is based on can be found at RSA's PKCS5 Page

    • Field Detail

      • hMac

        private Mac hMac
      • state

        private byte[] state
    • Constructor Detail

      • PKCS5S2ParametersGenerator

        public PKCS5S2ParametersGenerator​(Digest digest)
    • Method Detail

      • F

        private void F​(byte[] S,
                       int c,
                       byte[] iBuf,
                       byte[] out,
                       int outOff)
      • generateDerivedKey

        private byte[] generateDerivedKey​(int dkLen)
      • generateDerivedParameters

        public CipherParameters generateDerivedParameters​(int keySize)
        Generate a key parameter derived from the password, salt, and iteration count we are currently initialised with.
        Specified by:
        generateDerivedParameters in class PBEParametersGenerator
        Parameters:
        keySize - the size of the key we want (in bits)
        Returns:
        a KeyParameter object.