本文實(shí)例講述了Java使用DSA密鑰對(duì)生成XML簽名的方法。分享給大家供大家參考。具體實(shí)現(xiàn)方法如下：

MainClass.java代碼如下：

import java.security.KeyPair;

import java.security.KeyPairGenerator;

import java.security.SecureRandom;

import java.util.Collections;

import javax.xml.crypto.dsig.CanonicalizationMethod;

import javax.xml.crypto.dsig.DigestMethod;

import javax.xml.crypto.dsig.Reference;

import javax.xml.crypto.dsig.SignatureMethod;

import javax.xml.crypto.dsig.SignedInfo;

import javax.xml.crypto.dsig.XMLSignature;

import javax.xml.crypto.dsig.XMLSignatureFactory;

import javax.xml.crypto.dsig.keyinfo.KeyInfo;

import javax.xml.crypto.dsig.keyinfo.KeyInfoFactory;

import javax.xml.crypto.dsig.keyinfo.KeyValue;

import javax.xml.crypto.dsig.spec.C14NMethodParameterSpec;

public class MainClass {

public static void main(String[] args) throws Exception {

KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA");

kpg.initialize(1024, new SecureRandom());

KeyPair dsaKeyPair = kpg.generateKeyPair();

XMLSignatureFactory sigFactory = XMLSignatureFactory.getInstance();

Reference ref = sigFactory.newReference("#Body", sigFactory.newDigestMethod(DigestMethod.SHA1, null));

SignedInfo signedInfo = sigFactory.newSignedInfo(sigFactory.newCanonicalizationMethod(

CanonicalizationMethod.INCLUSIVE_WITH_COMMENTS, (C14NMethodParameterSpec) null), sigFactory.newSignatureMethod(SignatureMethod.DSA_SHA1, null), Collections.singletonList(ref));

KeyInfoFactory kif = sigFactory.getKeyInfoFactory();

KeyValue kv = kif.newKeyValue(dsaKeyPair.getPublic());

KeyInfo keyInfo = kif.newKeyInfo(Collections.singletonList(kv));

XMLSignature xmlSig = sigFactory.newXMLSignature(signedInfo, keyInfo);

}

}

希望本文所述對(duì)大家的java程序設(shè)計(jì)有所幫助。

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