本文整理汇总了Java中org.bouncycastle.pqc.math.linearalgebra.GoppaCode.createCanonicalCheckMatrix方法的典型用法代码示例。如果您正苦于以下问题:Java GoppaCode.createCanonicalCheckMatrix方法的具体用法?Java GoppaCode.createCanonicalCheckMatrix怎么用?Java GoppaCode.createCanonicalCheckMatrix使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.bouncycastle.pqc.math.linearalgebra.GoppaCode
的用法示例。
在下文中一共展示了GoppaCode.createCanonicalCheckMatrix方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: generateKeyPair
import org.bouncycastle.pqc.math.linearalgebra.GoppaCode; //导入方法依赖的package包/类
public AsymmetricCipherKeyPair generateKeyPair()
{
if (!initialized)
{
initializeDefault();
}
// finite field GF(2^m)
GF2mField field = new GF2mField(m, fieldPoly);
// irreducible Goppa polynomial
PolynomialGF2mSmallM gp = new PolynomialGF2mSmallM(field, t,
PolynomialGF2mSmallM.RANDOM_IRREDUCIBLE_POLYNOMIAL, random);
PolynomialRingGF2m ring = new PolynomialRingGF2m(field, gp);
// matrix for computing square roots in (GF(2^m))^t
PolynomialGF2mSmallM[] qInv = ring.getSquareRootMatrix();
// generate canonical check matrix
GF2Matrix h = GoppaCode.createCanonicalCheckMatrix(field, gp);
// compute short systematic form of check matrix
MaMaPe mmp = GoppaCode.computeSystematicForm(h, random);
GF2Matrix shortH = mmp.getSecondMatrix();
Permutation p = mmp.getPermutation();
// compute short systematic form of generator matrix
GF2Matrix shortG = (GF2Matrix)shortH.computeTranspose();
// obtain number of rows of G (= dimension of the code)
int k = shortG.getNumRows();
// generate keys
McElieceCCA2PublicKeyParameters pubKey = new McElieceCCA2PublicKeyParameters(OID, n, t, shortG, mcElieceCCA2Params.getParameters());
McElieceCCA2PrivateKeyParameters privKey = new McElieceCCA2PrivateKeyParameters(OID, n, k,
field, gp, p, h, qInv, mcElieceCCA2Params.getParameters());
// return key pair
return new AsymmetricCipherKeyPair(pubKey, privKey);
}