Package org.bouncycastle.pqc.crypto.mceliece

Class McElieceKobaraImaiCipher

  • All Implemented Interfaces:
    MessageEncryptor
    public class McElieceKobaraImaiCipher
extends java.lang.Object
implements MessageEncryptor
    This class implements the Kobara/Imai conversion of the McEliecePKCS. This is a conversion of the McEliecePKCS which is CCA2-secure. For details, see D. Engelbert, R. Overbeck, A. Schmidt, "A summary of the development of the McEliece Cryptosystem", technical report.

    • Field Detail

      • OID

        public static final java.lang.String OID
        The OID of the algorithm.
        See Also:
        Constant Field Values

      • PUBLIC_CONSTANT

        public static final byte[] PUBLIC_CONSTANT
        A predetermined public constant.

    • Constructor Detail

      • McElieceKobaraImaiCipher

        public McElieceKobaraImaiCipher()

    • Method Detail

      • init

        public void init​(boolean forEncryption,
                 CipherParameters param)
        Specified by:
        init in interface MessageEncryptor
        Parameters:
        forEncryption - true if we are encrypting a signature, false otherwise.
        param - key parameters for encryption or decryption.

      • getKeySize

        public int getKeySize​(McElieceCCA2KeyParameters key)
        Return the key size of the given key object.
        Parameters:
        key - the McElieceCCA2KeyParameters object
        Returns:
        the key size of the given key object

      • messageEncrypt

        public byte[] messageEncrypt​(byte[] input)
        Specified by:
        messageEncrypt in interface MessageEncryptor
        Parameters:
        input - the message to be signed.