Package org.bouncycastle.pqc.crypto.ntru

Class IndexGenerator.BitString

  • Enclosing class:
    IndexGenerator
    public static class IndexGenerator.BitString
extends java.lang.Object
    Represents a string of bits and supports appending, reading the head, and reading the tail.

    • Constructor Summary

      Constructors 
      Constructor Description
      BitString()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void appendBits​(byte b)
      Appends all bits in a byte to the end of the bit string.
      byte[] getBytes()  
      int getLeadingAsInt​(int numBits)
      Returns up to 32 bits from the beginning of the bit string.
      IndexGenerator.BitString getTrailing​(int numBits)
      Returns the last numBits bits from the end of the bit string.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • BitString

        public BitString()

    • Method Detail

      • appendBits

        public void appendBits​(byte b)
        Appends all bits in a byte to the end of the bit string.
        Parameters:
        b - a byte

      • getTrailing

        public IndexGenerator.BitString getTrailing​(int numBits)
        Returns the last numBits bits from the end of the bit string.
        Parameters:
        numBits - number of bits
        Returns:
        a new BitString of length numBits

      • getLeadingAsInt

        public int getLeadingAsInt​(int numBits)
        Returns up to 32 bits from the beginning of the bit string.
        Parameters:
        numBits - number of bits
        Returns:
        an int whose lower numBits bits are the beginning of the bit string

      • getBytes

        public byte[] getBytes()