Package org.bouncycastle.pqc.jcajce.provider.rainbow

Class BCRainbowPublicKey

  • All Implemented Interfaces:
    java.io.Serializable, java.security.Key, java.security.PublicKey
    public class BCRainbowPublicKey
extends java.lang.Object
implements java.security.PublicKey
    This class implements CipherParameters and PublicKey.

    The public key in Rainbow consists of n - v1 polynomial components of the private key's F and the field structure of the finite field k.

    The quadratic (or mixed) coefficients of the polynomials from the public key are stored in the 2-dimensional array in lexicographical order, requiring n * (n + 1) / 2 entries for each polynomial. The singular terms are stored in a 2-dimensional array requiring n entries per polynomial, the scalar term of each polynomial is stored in a 1-dimensional array.

    More detailed information on the public key is to be found in the paper of Jintai Ding, Dieter Schmidt: Rainbow, a New Multivariable Polynomial Signature Scheme. ACNS 2005: 164-175 (https://dx.doi.org/10.1007/11496137_12)

    See Also:
    Serialized Form

    • Constructor Detail

      • BCRainbowPublicKey

        public BCRainbowPublicKey​(int docLength,
                          short[][] coeffQuadratic,
                          short[][] coeffSingular,
                          short[] coeffScalar)
        Constructor
        Parameters:
        docLength -
        coeffQuadratic -
        coeffSingular -
        coeffScalar -

    • Method Detail

      • getDocLength

        public int getDocLength()
        Returns:
        the docLength

      • getCoeffQuadratic

        public short[][] getCoeffQuadratic()
        Returns:
        the coeffQuadratic

      • getCoeffSingular

        public short[][] getCoeffSingular()
        Returns:
        the coeffSingular

      • getCoeffScalar

        public short[] getCoeffScalar()
        Returns:
        the coeffScalar

      • equals

        public boolean equals​(java.lang.Object other)
        Compare this Rainbow public key with another object.
        Overrides:
        equals in class java.lang.Object
        Parameters:
        other - the other object
        Returns:
        the result of the comparison

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object

      • getAlgorithm

        public final java.lang.String getAlgorithm()
        Specified by:
        getAlgorithm in interface java.security.Key
        Returns:
        name of the algorithm - "Rainbow"

      • getFormat

        public java.lang.String getFormat()
        Specified by:
        getFormat in interface java.security.Key

      • getEncoded

        public byte[] getEncoded()
        Specified by:
        getEncoded in interface java.security.Key