package org.pzone.crypto;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.io.UnsupportedEncodingException;
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import java.math.BigInteger;
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import java.security.SecureRandom;
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import java.util.Arrays;
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import org.bouncycastle.crypto.params.ECDomainParameters;
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import org.bouncycastle.math.ec.ECCurve;
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import org.bouncycastle.math.ec.ECPoint;
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/**
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* SM2¹«Ô¿¼ÓÃÜË㷨ʵÏÖ °üÀ¨ -Ç©Ãû,ÑéÇ© -ÃÜÔ¿½»»» -¹«Ô¿¼ÓÃÜ,˽Կ½âÃÜ
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*
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* @author Potato
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*
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*/
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public class SM2 {
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private static BigInteger n = new BigInteger(
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"FFFFFFFE" + "FFFFFFFF" + "FFFFFFFF" + "FFFFFFFF" + "7203DF6B" + "21C6052B" + "53BBF409" + "39D54123", 16);
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private static BigInteger p = new BigInteger(
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"FFFFFFFE" + "FFFFFFFF" + "FFFFFFFF" + "FFFFFFFF" + "FFFFFFFF" + "00000000" + "FFFFFFFF" + "FFFFFFFF", 16);
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private static BigInteger a = new BigInteger(
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"FFFFFFFE" + "FFFFFFFF" + "FFFFFFFF" + "FFFFFFFF" + "FFFFFFFF" + "00000000" + "FFFFFFFF" + "FFFFFFFC", 16);
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private static BigInteger b = new BigInteger(
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"28E9FA9E" + "9D9F5E34" + "4D5A9E4B" + "CF6509A7" + "F39789F5" + "15AB8F92" + "DDBCBD41" + "4D940E93", 16);
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private static BigInteger gx = new BigInteger(
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"32C4AE2C" + "1F198119" + "5F990446" + "6A39C994" + "8FE30BBF" + "F2660BE1" + "715A4589" + "334C74C7", 16);
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private static BigInteger gy = new BigInteger(
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"BC3736A2" + "F4F6779C" + "59BDCEE3" + "6B692153" + "D0A9877C" + "C62A4740" + "02DF32E5" + "2139F0A0", 16);
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private static ECDomainParameters ecc_bc_spec;
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private static int w = (int) Math.ceil(n.bitLength() * 1.0 / 2) - 1;
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private static BigInteger _2w = new BigInteger("2").pow(w);
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private static final int DIGEST_LENGTH = 32;
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private static SecureRandom random = new SecureRandom();
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private static ECCurve.Fp curve;
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private static ECPoint G;
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private boolean debug = false;
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public boolean isDebug() {
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return debug;
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}
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public void setDebug(boolean debug) {
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this.debug = debug;
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}
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/**
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* °´ÕÕ16½øÖÆ´òÓ¡×Ö½ÚÊý×é
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*
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* @param b
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*/
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public static void printHexString(byte[] b) {
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for (int i = 0; i < b.length; i++) {
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String hex = Integer.toHexString(b[i] & 0xFF);
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if (hex.length() == 1) {
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hex = '0' + hex;
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}
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System.out.print(hex.toUpperCase());
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}
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System.out.println();
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}
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/**
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* Ëæ»úÊýÉú³ÉÆ÷
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*
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* @param max
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* @return
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*/
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private static BigInteger random(BigInteger max) {
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BigInteger r = new BigInteger(256, random);
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// int count = 1;
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while (r.compareTo(max) >= 0) {
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r = new BigInteger(128, random);
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// count++;
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}
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// System.out.println("count: " + count);
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return r;
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}
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/**
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* ÅжÏ×Ö½ÚÊý×éÊÇ·ñ´æÔÚΪ0
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*
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* @param buffer
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* @return
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*/
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private boolean allZero(byte[] buffer) {
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for (int i = 0; i < buffer.length; i++) {
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if (buffer[i] != 0)
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return false;
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}
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return true;
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}
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/**
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* ¹«Ô¿¼ÓÃÜ
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*
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* @param input
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* ¼ÓÃÜÔÎÄ
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* @param publicKey
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* ¹«Ô¿
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* @return
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*/
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public byte[] encrypt(byte[] input, ECPoint publicKey) {
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byte[] inputBuffer = input;//.getBytes();
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if (debug)
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printHexString(inputBuffer);
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byte[] C1Buffer;
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ECPoint kpb;
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byte[] t;
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do {
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/* 1 ²úÉúËæ»úÊýk£¬kÊôÓÚ[1, n-1] */
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BigInteger k = random(n);
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if (debug) {
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System.out.print("k: ");
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printHexString(k.toByteArray());
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}
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/* 2 ¼ÆËãÍÖÔ²ÇúÏßµãC1 = [k]G = (x1, y1) */
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ECPoint C1 = G.multiply(k);
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C1Buffer = C1.getEncoded(false);
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if (debug) {
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System.out.print("C1: ");
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printHexString(C1Buffer);
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}
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/*
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* 3 ¼ÆËãÍÖÔ²ÇúÏß S = [h]Pb
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*/
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BigInteger h = ecc_bc_spec.getH();
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if (h != null) {
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ECPoint S = publicKey.multiply(h);
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if (S.isInfinity())
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throw new IllegalStateException();
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}
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/* 4 ¼ÆËã [k]PB = (x2, y2) */
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kpb = publicKey.multiply(k).normalize();
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/* 5 ¼ÆËã t = KDF(x2||y2, klen) */
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byte[] kpbBytes = kpb.getEncoded(false);
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t = KDF(kpbBytes, inputBuffer.length);
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// DerivationFunction kdf = new KDF1BytesGenerator(new
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// ShortenedDigest(new SHA256Digest(), DIGEST_LENGTH));
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//
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// t = new byte[inputBuffer.length];
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// kdf.init(new ISO18033KDFParameters(kpbBytes));
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// kdf.generateBytes(t, 0, t.length);
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} while (allZero(t));
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/* 6 ¼ÆËãC2=M^t */
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byte[] C2 = new byte[inputBuffer.length];
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for (int i = 0; i < inputBuffer.length; i++) {
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C2[i] = (byte) (inputBuffer[i] ^ t[i]);
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}
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/* 7 ¼ÆËãC3 = Hash(x2 || M || y2) */
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byte[] C3 = sm3hash(kpb.getXCoord().toBigInteger().toByteArray(), inputBuffer,
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kpb.getYCoord().toBigInteger().toByteArray());
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/* 8 Êä³öÃÜÎÄ C=C1 || C2 || C3 */
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byte[] encryptResult = new byte[C1Buffer.length + C2.length + C3.length];
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System.arraycopy(C1Buffer, 0, encryptResult, 0, C1Buffer.length);
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System.arraycopy(C2, 0, encryptResult, C1Buffer.length, C2.length);
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System.arraycopy(C3, 0, encryptResult, C1Buffer.length + C2.length, C3.length);
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if (debug) {
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System.out.print("ÃÜÎÄ: ");
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printHexString(encryptResult);
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}
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return encryptResult;
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}
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/**
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* ˽Կ½âÃÜ
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*
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* @param encryptData
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* ÃÜÎÄÊý¾Ý×Ö½ÚÊý×é
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* @param privateKey
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* ½âÃÜ˽Կ
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* @return
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*/
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public byte[] decrypt(byte[] encryptData, BigInteger privateKey) {
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if (debug)
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System.out.println("encryptData length: " + encryptData.length);
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byte[] C1Byte = new byte[65];
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System.arraycopy(encryptData, 0, C1Byte, 0, C1Byte.length);
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ECPoint C1 = curve.decodePoint(C1Byte).normalize();
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/*
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* ¼ÆËãÍÖÔ²ÇúÏß S = [h]C1 ÊÇ·ñΪÎÞÇîµã
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*/
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BigInteger h = ecc_bc_spec.getH();
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if (h != null) {
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ECPoint S = C1.multiply(h);
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if (S.isInfinity())
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throw new IllegalStateException();
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}
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/* ¼ÆËã[dB]C1 = (x2, y2) */
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ECPoint dBC1 = C1.multiply(privateKey).normalize();
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/* ¼ÆËãt = KDF(x2 || y2, klen) */
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byte[] dBC1Bytes = dBC1.getEncoded(false);
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int klen = encryptData.length - 65 - DIGEST_LENGTH;
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byte[] t = KDF(dBC1Bytes, klen);
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// DerivationFunction kdf = new KDF1BytesGenerator(new
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// ShortenedDigest(new SHA256Digest(), DIGEST_LENGTH));
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// if (debug)
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// System.out.println("klen = " + klen);
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// kdf.init(new ISO18033KDFParameters(dBC1Bytes));
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// kdf.generateBytes(t, 0, t.length);
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if (allZero(t)) {
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System.err.println("all zero");
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throw new IllegalStateException();
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}
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/* 5 ¼ÆËãM'=C2^t */
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byte[] M = new byte[klen];
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for (int i = 0; i < M.length; i++) {
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M[i] = (byte) (encryptData[C1Byte.length + i] ^ t[i]);
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}
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if (debug)
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printHexString(M);
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/* 6 ¼ÆËã u = Hash(x2 || M' || y2) ÅÐ¶Ï u == C3ÊÇ·ñ³ÉÁ¢ */
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byte[] C3 = new byte[DIGEST_LENGTH];
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if (debug)
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try {
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System.out.println("M = " + new String(M, "UTF8"));
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} catch (UnsupportedEncodingException e1) {
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// TODO Auto-generated catch block
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e1.printStackTrace();
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}
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System.arraycopy(encryptData, encryptData.length - DIGEST_LENGTH, C3, 0, DIGEST_LENGTH);
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byte[] u = sm3hash(dBC1.getXCoord().toBigInteger().toByteArray(), M,
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dBC1.getYCoord().toBigInteger().toByteArray());
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if (Arrays.equals(u, C3)) {
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if (debug)
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System.out.println("½âÃܳɹ¦");
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return M;//new String(M, "UTF8");
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} else {
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if (debug) {
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System.out.print("u = ");
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printHexString(u);
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System.out.print("C3 = ");
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printHexString(C3);
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System.err.println("½âÃÜÑé֤ʧ°Ü");
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}
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return null;
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}
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}
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// /**
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// * SHAÕªÒª
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// * @param x2
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// * @param M
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// * @param y2
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// * @return
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// */
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// private byte[] calculateHash(BigInteger x2, byte[] M, BigInteger y2) {
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// ShortenedDigest digest = new ShortenedDigest(new SHA256Digest(),
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// DIGEST_LENGTH);
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// byte[] buf = x2.toByteArray();
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// digest.update(buf, 0, buf.length);
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// digest.update(M, 0, M.length);
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// buf = y2.toByteArray();
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// digest.update(buf, 0, buf.length);
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//
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// buf = new byte[DIGEST_LENGTH];
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// digest.doFinal(buf, 0);
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//
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// return buf;
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// }
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/**
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* ÅжÏÊÇ·ñÔÚ·¶Î§ÄÚ
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*
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* @param param
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* @param min
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* @param max
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* @return
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*/
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private boolean between(BigInteger param, BigInteger min, BigInteger max) {
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if (param.compareTo(min) >= 0 && param.compareTo(max) < 0) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* ÅжÏÉú³ÉµÄ¹«Ô¿ÊÇ·ñºÏ·¨
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*
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* @param publicKey
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* @return
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*/
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private boolean checkPublicKey(ECPoint publicKey) {
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if (!publicKey.isInfinity()) {
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BigInteger x = publicKey.getXCoord().toBigInteger();
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BigInteger y = publicKey.getYCoord().toBigInteger();
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if (between(x, new BigInteger("0"), p) && between(y, new BigInteger("0"), p)) {
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BigInteger xResult = x.pow(3).add(a.multiply(x)).add(b).mod(p);
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if (debug)
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System.out.println("xResult: " + xResult.toString());
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BigInteger yResult = y.pow(2).mod(p);
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if (debug)
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System.out.println("yResult: " + yResult.toString());
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if (yResult.equals(xResult) && publicKey.multiply(n).isInfinity()) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* Éú³ÉÃÜÔ¿¶Ô
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*
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* @return
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*/
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public SM2KeyPair generateKeyPair() {
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BigInteger d = random(n.subtract(new BigInteger("1")));
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SM2KeyPair keyPair = new SM2KeyPair(G.multiply(d).normalize(), d);
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if (checkPublicKey(keyPair.getPublicKey())) {
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if (debug)
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System.out.println("generate key successfully");
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return keyPair;
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} else {
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if (debug)
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System.err.println("generate key failed");
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return null;
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}
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}
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@SuppressWarnings("deprecation")
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public SM2() {
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curve = new ECCurve.Fp(p, // q
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a, // a
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b); // b
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G = curve.createPoint(gx, gy);
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ecc_bc_spec = new ECDomainParameters(curve, G, n);
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}
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public SM2(boolean debug) {
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this();
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this.debug = debug;
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}
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/**
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* µ¼³ö¹«Ô¿µ½±¾±¾µØ·¾¶
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*
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* @param publicKey
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* @param path
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*/
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public void exportPublicKey(ECPoint publicKey, String path) {
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File file = new File(path);
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try {
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if (!file.exists())
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file.createNewFile();
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byte buffer[] = publicKey.getEncoded(false);
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FileOutputStream fos = new FileOutputStream(file);
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fos.write(buffer);
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fos.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* ´Ó±¾µØµ¼È빫Կ
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*
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* @param path
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* @return
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*/
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public ECPoint importPublicKey(String path) {
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File file = new File(path);
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try {
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if (!file.exists())
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return null;
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FileInputStream fis = new FileInputStream(file);
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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byte buffer[] = new byte[16];
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int size;
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while ((size = fis.read(buffer)) != -1) {
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baos.write(buffer, 0, size);
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}
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fis.close();
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return curve.decodePoint(baos.toByteArray());
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* µ¼³ö˽Կµ½±¾µØ·¾¶
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*
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* @param privateKey
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* @param path
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*/
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public void exportPrivateKey(BigInteger privateKey, String path) {
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File file = new File(path);
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try {
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if (!file.exists())
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file.createNewFile();
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ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file));
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oos.writeObject(privateKey);
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oos.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* ´Ó±¾µØµ¼Èë˽Կ
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*
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* @param path
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* @return
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*/
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public BigInteger importPrivateKey(String path) {
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File file = new File(path);
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try {
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if (!file.exists())
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return null;
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FileInputStream fis = new FileInputStream(file);
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ObjectInputStream ois = new ObjectInputStream(fis);
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BigInteger res = (BigInteger) (ois.readObject());
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ois.close();
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fis.close();
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return res;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* ×Ö½ÚÊý×éÆ´½Ó
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*
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* @param params
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* @return
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*/
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private static byte[] join(byte[]... params) {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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byte[] res = null;
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try {
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for (int i = 0; i < params.length; i++) {
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baos.write(params[i]);
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}
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res = baos.toByteArray();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return res;
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}
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/**
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* sm3ÕªÒª
|
*
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* @param params
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* @return
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*/
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private static byte[] sm3hash(byte[]... params) {
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byte[] res = null;
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try {
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res = SM3.hash(join(params));
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} catch (IOException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return res;
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}
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/**
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* È¡µÃÓû§±êʶ×Ö½ÚÊý×é
|
*
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* @param IDA
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* @param aPublicKey
|
* @return
|
*/
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private static byte[] ZA(String IDA, ECPoint aPublicKey) {
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byte[] idaBytes = IDA.getBytes();
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int entlenA = idaBytes.length * 8;
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byte[] ENTLA = new byte[] { (byte) (entlenA & 0xFF00), (byte) (entlenA & 0x00FF) };
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byte[] ZA = sm3hash(ENTLA, idaBytes, a.toByteArray(), b.toByteArray(), gx.toByteArray(), gy.toByteArray(),
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aPublicKey.getXCoord().toBigInteger().toByteArray(),
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aPublicKey.getYCoord().toBigInteger().toByteArray());
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return ZA;
|
}
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|
/**
|
* Ç©Ãû
|
*
|
* @param M
|
* Ç©ÃûÐÅÏ¢
|
* @param IDA
|
* Ç©Ãû·½Î¨Ò»±êʶ
|
* @param keyPair
|
* Ç©Ãû·½ÃÜÔ¿¶Ô
|
* @return Ç©Ãû
|
*/
|
public Signature sign(String M, String IDA, SM2KeyPair keyPair) {
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byte[] ZA = ZA(IDA, keyPair.getPublicKey());
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byte[] M_ = join(ZA, M.getBytes());
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BigInteger e = new BigInteger(1, sm3hash(M_));
|
// BigInteger k = new BigInteger(
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// "6CB28D99 385C175C 94F94E93 4817663F C176D925 DD72B727 260DBAAE
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// 1FB2F96F".replace(" ", ""), 16);
|
BigInteger k;
|
BigInteger r;
|
do {
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k = random(n);
|
ECPoint p1 = G.multiply(k).normalize();
|
BigInteger x1 = p1.getXCoord().toBigInteger();
|
r = e.add(x1);
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r = r.mod(n);
|
} while (r.equals(BigInteger.ZERO) || r.add(k).equals(n));
|
|
BigInteger s = ((keyPair.getPrivateKey().add(BigInteger.ONE).modInverse(n))
|
.multiply((k.subtract(r.multiply(keyPair.getPrivateKey()))).mod(n))).mod(n);
|
|
return new Signature(r, s);
|
}
|
|
/**
|
* ÑéÇ©
|
*
|
* @param M
|
* Ç©ÃûÐÅÏ¢
|
* @param signature
|
* Ç©Ãû
|
* @param IDA
|
* Ç©Ãû·½Î¨Ò»±êʶ
|
* @param aPublicKey
|
* Ç©Ãû·½¹«Ô¿
|
* @return true or false
|
*/
|
public boolean verify(String M, Signature signature, String IDA, ECPoint aPublicKey) {
|
if (!between(signature.r, BigInteger.ONE, n))
|
return false;
|
if (!between(signature.s, BigInteger.ONE, n))
|
return false;
|
|
byte[] M_ = join(ZA(IDA, aPublicKey), M.getBytes());
|
BigInteger e = new BigInteger(1, sm3hash(M_));
|
BigInteger t = signature.r.add(signature.s).mod(n);
|
|
if (t.equals(BigInteger.ZERO))
|
return false;
|
|
ECPoint p1 = G.multiply(signature.s).normalize();
|
ECPoint p2 = aPublicKey.multiply(t).normalize();
|
BigInteger x1 = p1.add(p2).normalize().getXCoord().toBigInteger();
|
BigInteger R = e.add(x1).mod(n);
|
if (R.equals(signature.r))
|
return true;
|
return false;
|
}
|
|
/**
|
* ÃÜÔ¿ÅÉÉúº¯Êý
|
*
|
* @param Z
|
* @param klen
|
* Éú³Éklen×Ö½ÚÊý³¤¶ÈµÄÃÜÔ¿
|
* @return
|
*/
|
private static byte[] KDF(byte[] Z, int klen) {
|
int ct = 1;
|
int end = (int) Math.ceil(klen * 1.0 / 32);
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
try {
|
for (int i = 1; i < end; i++) {
|
baos.write(sm3hash(Z, SM3.toByteArray(ct)));
|
ct++;
|
}
|
byte[] last = sm3hash(Z, SM3.toByteArray(ct));
|
if (klen % 32 == 0) {
|
baos.write(last);
|
} else
|
baos.write(last, 0, klen % 32);
|
return baos.toByteArray();
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
return null;
|
}
|
|
/**
|
* ´«ÊäʵÌåÀà
|
*
|
* @author Potato
|
*
|
*/
|
private static class TransportEntity implements Serializable {
|
/**
|
*
|
*/
|
private static final long serialVersionUID = 1L;
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final byte[] R; //R
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final byte[] S; //ÑéÖ¤S
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final byte[] Z; //Óû§±êʶ
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final byte[] K; //¹«Ô¿
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public TransportEntity(byte[] r, byte[] s,byte[] z,ECPoint pKey) {
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R = r;
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S = s;
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Z=z;
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K=pKey.getEncoded(false);
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}
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}
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/**
|
* ÃÜÔ¿ÐÉ̸¨Öú
|
*
|
* @author Potato
|
*
|
*/
|
public static class KeyExchange {
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BigInteger rA;
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ECPoint RA;
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ECPoint V;
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byte[] Z;
|
byte[] key;
|
|
String ID;
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SM2KeyPair keyPair;
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public KeyExchange(String ID,SM2KeyPair keyPair) {
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this.ID=ID;
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this.keyPair = keyPair;
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this.Z=ZA(ID, keyPair.getPublicKey());
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}
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|
/**
|
* ÃÜÔ¿ÐÉÌ·¢ÆðµÚÒ»´Î
|
*
|
* @return
|
*/
|
public TransportEntity keyExchange_1() {
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rA = random(n);
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// rA=new BigInteger("83A2C9C8 B96E5AF7 0BD480B4 72409A9A 327257F1
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// EBB73F5B 073354B2 48668563".replace(" ", ""),16);
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RA = G.multiply(rA).normalize();
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return new TransportEntity(RA.getEncoded(false), null,Z,keyPair.getPublicKey());
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}
|
|
/**
|
* ÃÜÔ¿ÐÉÌÏìÓ¦½á¹û
|
*
|
* @param entity ´«ÊäʵÌå
|
* @return
|
*/
|
public TransportEntity keyExchange_2(TransportEntity entity) {
|
BigInteger rB = random(n);
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// BigInteger rB=new BigInteger("33FE2194 0342161C 55619C4A 0C060293
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// D543C80A F19748CE 176D8347 7DE71C80".replace(" ", ""),16);
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ECPoint RB = G.multiply(rB).normalize();
|
|
this.rA=rB;
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this.RA=RB;
|
|
BigInteger x2 = RB.getXCoord().toBigInteger();
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x2 = _2w.add(x2.and(_2w.subtract(BigInteger.ONE)));
|
|
BigInteger tB = keyPair.getPrivateKey().add(x2.multiply(rB)).mod(n);
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ECPoint RA = curve.decodePoint(entity.R).normalize();
|
|
BigInteger x1 = RA.getXCoord().toBigInteger();
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x1 = _2w.add(x1.and(_2w.subtract(BigInteger.ONE)));
|
|
ECPoint aPublicKey=curve.decodePoint(entity.K).normalize();
|
ECPoint temp = aPublicKey.add(RA.multiply(x1).normalize()).normalize();
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ECPoint V = temp.multiply(ecc_bc_spec.getH().multiply(tB)).normalize();
|
if (V.isInfinity())
|
throw new IllegalStateException();
|
this.V=V;
|
|
byte[] xV = V.getXCoord().toBigInteger().toByteArray();
|
byte[] yV = V.getYCoord().toBigInteger().toByteArray();
|
byte[] KB = KDF(join(xV, yV, entity.Z, this.Z), 16);
|
key = KB;
|
System.out.print("ÐÉ̵ÃBÃÜÔ¿:");
|
printHexString(KB);
|
byte[] sB = sm3hash(new byte[] { 0x02 }, yV,
|
sm3hash(xV, entity.Z, this.Z, RA.getXCoord().toBigInteger().toByteArray(),
|
RA.getYCoord().toBigInteger().toByteArray(), RB.getXCoord().toBigInteger().toByteArray(),
|
RB.getYCoord().toBigInteger().toByteArray()));
|
return new TransportEntity(RB.getEncoded(false), sB,this.Z,keyPair.getPublicKey());
|
}
|
|
/**
|
* ÃÜÔ¿ÐÉÌ·¢Æð·½µÚ¶þ´Î
|
*
|
* @param entity ´«ÊäʵÌå
|
*/
|
public TransportEntity keyExchange_3(TransportEntity entity) {
|
BigInteger x1 = RA.getXCoord().toBigInteger();
|
x1 = _2w.add(x1.and(_2w.subtract(BigInteger.ONE)));
|
|
BigInteger tA = keyPair.getPrivateKey().add(x1.multiply(rA)).mod(n);
|
ECPoint RB = curve.decodePoint(entity.R).normalize();
|
|
BigInteger x2 = RB.getXCoord().toBigInteger();
|
x2 = _2w.add(x2.and(_2w.subtract(BigInteger.ONE)));
|
|
ECPoint bPublicKey=curve.decodePoint(entity.K).normalize();
|
ECPoint temp = bPublicKey.add(RB.multiply(x2).normalize()).normalize();
|
ECPoint U = temp.multiply(ecc_bc_spec.getH().multiply(tA)).normalize();
|
if (U.isInfinity())
|
throw new IllegalStateException();
|
this.V=U;
|
|
byte[] xU = U.getXCoord().toBigInteger().toByteArray();
|
byte[] yU = U.getYCoord().toBigInteger().toByteArray();
|
byte[] KA = KDF(join(xU, yU,
|
this.Z, entity.Z), 16);
|
key = KA;
|
System.out.print("ÐÉ̵ÃAÃÜÔ¿:");
|
printHexString(KA);
|
byte[] s1= sm3hash(new byte[] { 0x02 }, yU,
|
sm3hash(xU, this.Z, entity.Z, RA.getXCoord().toBigInteger().toByteArray(),
|
RA.getYCoord().toBigInteger().toByteArray(), RB.getXCoord().toBigInteger().toByteArray(),
|
RB.getYCoord().toBigInteger().toByteArray()));
|
if(Arrays.equals(entity.S, s1))
|
System.out.println("B->A ÃÜÔ¿È·Èϳɹ¦");
|
else
|
System.out.println("B->A ÃÜÔ¿È·ÈÏʧ°Ü");
|
byte[] sA= sm3hash(new byte[] { 0x03 }, yU,
|
sm3hash(xU, this.Z, entity.Z, RA.getXCoord().toBigInteger().toByteArray(),
|
RA.getYCoord().toBigInteger().toByteArray(), RB.getXCoord().toBigInteger().toByteArray(),
|
RB.getYCoord().toBigInteger().toByteArray()));
|
|
return new TransportEntity(RA.getEncoded(false), sA,this.Z,keyPair.getPublicKey());
|
}
|
|
/**
|
* ÃÜÔ¿È·ÈÏÎÞÎóºóÈ·ÈÏ
|
*
|
* @param entity ´«ÊäʵÌå
|
*/
|
public void keyExchange_4(TransportEntity entity) {
|
byte[] xV = V.getXCoord().toBigInteger().toByteArray();
|
byte[] yV = V.getYCoord().toBigInteger().toByteArray();
|
ECPoint RA = curve.decodePoint(entity.R).normalize();
|
byte[] s2= sm3hash(new byte[] { 0x03 }, yV,
|
sm3hash(xV, entity.Z, this.Z, RA.getXCoord().toBigInteger().toByteArray(),
|
RA.getYCoord().toBigInteger().toByteArray(), this.RA.getXCoord().toBigInteger().toByteArray(),
|
this.RA.getYCoord().toBigInteger().toByteArray()));
|
if(Arrays.equals(entity.S, s2))
|
System.out.println("A->B ÃÜÔ¿È·Èϳɹ¦");
|
else
|
System.out.println("A->B ÃÜÔ¿È·ÈÏʧ°Ü");
|
}
|
}
|
|
public static void main(String[] args) throws UnsupportedEncodingException {
|
|
SM2 sm02 = new SM2();
|
/*
|
BigInteger px = new BigInteger(
|
"0AE4C779 8AA0F119 471BEE11 825BE462 02BB79E2 A5844495 E97C04FF 4DF2548A".replace(" ", ""), 16);
|
BigInteger py = new BigInteger(
|
"7C0240F8 8F1CD4E1 6352A73C 17B7F16F 07353E53 A176D684 A9FE0C6B B798E857".replace(" ", ""), 16);
|
ECPoint publicKey = sm02.curve.createPoint(px, py);
|
BigInteger privateKey = new BigInteger(
|
"128B2FA8 BD433C6C 068C8D80 3DFF7979 2A519A55 171B1B65 0C23661D 15897263".replace(" ", ""), 16);
|
*/
|
SM2KeyPair keyPair = sm02.generateKeyPair();
|
ECPoint publicKey=keyPair.getPublicKey();
|
BigInteger privateKey=keyPair.getPrivateKey();
|
sm02.exportPublicKey(publicKey, "E:/publickey.pem");
|
sm02.exportPrivateKey(privateKey, "E:/privatekey.pem");
|
|
System.out.println("-----------------¹«Ô¿¼ÓÃÜÓë½âÃÜ-----------------");
|
/*ECPoint*/ publicKey = sm02.importPublicKey("E:/publickey.pem");
|
/*BigInteger*/ privateKey = sm02.importPrivateKey("E:/privatekey.pem");
|
byte[] data = sm02.encrypt("²âÊÔ¼ÓÃÜaaaaaaaaaaa123aabb".getBytes(), publicKey);
|
System.out.print("ÃÜÎÄ:");
|
SM2.printHexString(data);
|
System.out.println("½âÃܺóÃ÷ÎÄ:" + sm02.decrypt(data, privateKey));
|
|
System.out.println("-----------------Ç©ÃûÓëÑéÇ©-----------------");
|
String IDA = "Heartbeats";
|
String M = "ҪǩÃûµÄÐÅÏ¢";
|
Signature signature = sm02.sign(M, IDA, new SM2KeyPair(publicKey, privateKey));
|
System.out.println("Óû§±êʶ:" + IDA);
|
System.out.println("Ç©ÃûÐÅÏ¢:" + M);
|
System.out.println("Êý×ÖÇ©Ãû:" + signature);
|
System.out.println("Ñé֤ǩÃû:" + sm02.verify(M, signature, IDA, publicKey));
|
|
System.out.println("-----------------ÃÜÔ¿ÐÉÌ-----------------");
|
String aID = "AAAAAAAAAAAAA";
|
SM2KeyPair aKeyPair = sm02.generateKeyPair();
|
KeyExchange aKeyExchange = new KeyExchange(aID,aKeyPair);
|
|
String bID = "BBBBBBBBBBBBB";
|
SM2KeyPair bKeyPair = sm02.generateKeyPair();
|
KeyExchange bKeyExchange = new KeyExchange(bID,bKeyPair);
|
TransportEntity entity1 = aKeyExchange.keyExchange_1();
|
TransportEntity entity2 = bKeyExchange.keyExchange_2(entity1);
|
TransportEntity entity3 = aKeyExchange.keyExchange_3(entity2);
|
bKeyExchange.keyExchange_4(entity3);
|
}
|
|
public static class Signature {
|
BigInteger r;
|
BigInteger s;
|
|
public Signature(BigInteger r, BigInteger s) {
|
this.r = r;
|
this.s = s;
|
}
|
|
public String toString() {
|
return r.toString(16) + "," + s.toString(16);
|
}
|
}
|
}
|
