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309
src/main/java/quant/rich/emoney/util/EncryptUtils.java
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309
src/main/java/quant/rich/emoney/util/EncryptUtils.java
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package quant.rich.emoney.util;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidKeyException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.time.Instant;
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import java.util.Base64;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import org.apache.commons.lang3.StringUtils;
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import org.bouncycastle.crypto.digests.SHA3Digest;
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import org.bouncycastle.util.encoders.Hex;
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import lombok.extern.slf4j.Slf4j;
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import okhttp3.MediaType;
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import okhttp3.Request;
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import okhttp3.RequestBody;
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@Slf4j
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public class EncryptUtils {
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private static final byte[] IV = "aesiv_emapp@2018".getBytes(StandardCharsets.UTF_8);
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private static final String PASSWORD_KEY_STRING_BASE64 = "5pxlF/NrBtxlBve0jQwGEw==";
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private static final String PASSWORD_CIPHER_INSTANCE = "AES/CBC/PKCS5Padding";
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private static final String AES_DECODE_KEY_STRING_BASE64 = "39KLC1etSfUXuiGxRm5ilDDtqapKXm0COuHxUrWSWlc=";
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private static final String EM_SIGN_MESS_1 = "23082404151001";
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private static final String EM_SIGN_MESS_2 = "994fec3c512f2f7756fd5e4403147f01";
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private static final String SLASH = "/";
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private static final String COLON = ":";
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/**
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* 加密用于 Emoney 登录的密码
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* @param pwd 明文密码
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* @return 加密过的密码（Base64 字符串）
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*/
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public static String encryptAesForEmoneyPassword(String pwd) {
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try {
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byte[] keyBytes = Base64.getDecoder().decode(PASSWORD_KEY_STRING_BASE64);
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SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
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IvParameterSpec ivSpec = new IvParameterSpec(IV);
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Cipher cipher = Cipher.getInstance(PASSWORD_CIPHER_INSTANCE);
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cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
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// 执行加密
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byte[] encryptedBytes = cipher.doFinal(pwd.getBytes(StandardCharsets.UTF_8));
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// 将加密结果转换为Base64字符串
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String encryptedString = Base64.getEncoder().encodeToString(encryptedBytes);
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return encryptedString;
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} catch (Exception e) {
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log.error("Encrypt aes for emoney-password failed", e);
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return null;
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}
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}
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/**
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* 解密由 Emoney 进行加密过的密码
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* @param pwd 加密过的密码（Base64 字符串）
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* @return 明文密码
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*/
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public static String decryptAesForEmoneyPassword(String pwd) {
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try {
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byte[] keyBytes = Base64.getDecoder().decode(PASSWORD_KEY_STRING_BASE64);
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byte[] passBytes = Base64.getDecoder().decode(pwd);
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SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
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IvParameterSpec ivSpec = new IvParameterSpec(IV);
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Cipher cipher = Cipher.getInstance(PASSWORD_CIPHER_INSTANCE);
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cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
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// 执行解密
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byte[] decryptedBytes = cipher.doFinal(passBytes);
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return new String(decryptedBytes, "UTF-8");
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} catch (Exception e) {
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//log.error("Decrypt aes for emoney-password failed", e);
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return null;
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}
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}
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/**
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* 使用益盟自带 AES key 对指定字节数组进行解密，一般而言该字节数组通过解码 Base64 字符串得到
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* @param bArr
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* @return
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*/
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private static String decryptAesForEmSignMess(byte[] bArr) {
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try {
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byte[] keyBytes = Base64.getDecoder().decode(AES_DECODE_KEY_STRING_BASE64);
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EmoneyBytesResortUtils.d(keyBytes);
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SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
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Cipher cipher = Cipher.getInstance("AES");
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cipher.init(Cipher.DECRYPT_MODE, keySpec);
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return new String(cipher.doFinal(bArr), "UTF-8");
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} catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | IllegalBlockSizeException
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| BadPaddingException | UnsupportedEncodingException 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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* 字符串转 32 位小写 md5 字符串
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*
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* @param str
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* @return
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*/
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public static String toMD5String(String str) {
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if (StringUtils.isEmpty(str)) {
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return null;
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}
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try {
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return toMD5String(str.getBytes("UTF-8"));
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} catch (UnsupportedEncodingException e10) {
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e10.printStackTrace();
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return null;
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}
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}
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/**
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* 字节数组转 32 位小写 md5 字符串
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* @param bytes
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* @return
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*/
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public static String toMD5String(byte[] bytes) {
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if (bytes == null) {
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return null;
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}
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try {
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MessageDigest instance = MessageDigest.getInstance("MD5");
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instance.update(bytes);
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return bytesToHex(instance.digest());
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} catch (NoSuchAlgorithmException e10) {
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e10.printStackTrace();
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return null;
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}
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}
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public static String bytesToHex(byte[] bytes) {
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StringBuilder sb = new StringBuilder();
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for (byte b : bytes) {
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// 将字节转换为无符号整数表示的16进制，并且保证每个字节输出两个字符
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sb.append(String.format("%02x", b & 0xFF));
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}
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return sb.toString();
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}
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/**
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* 根据 content、method 和 xProtocolId 生成 EM-Sign，随机字符串和时间戳自动生成
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* @param content 请求的字节数组
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* @param method 请求方法
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* @param xProtocolId 请求 X-Protocol-Id
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* @return
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* @throws IOException
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*/
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public static String getEMSign(
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byte[] content,
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String method,
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String xProtocolId) throws IOException {
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String randomString = TextUtils.randomString(10);
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long timestampFixed = Instant.now().toEpochMilli();
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return getEMSign(content, method, xProtocolId, randomString, timestampFixed);
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}
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/**
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* 根据 content、method、xProtocolId、指定的随机 10 位字符串、指定的时间戳生成 EM-Sign
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* @param content 请求的字节数组
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* @param method 请求方法
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* @param xProtocolId 请求 X-Protocol-Id
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* @return
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* @throws IOException
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*/
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public static String getEMSign(
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byte[] content,
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String method,
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String xProtocolId,
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String randomString, long timestampFixed) throws IOException {
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// TODO: 空校验、时间戳校验、随机字符串长度校验等防呆操作
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StringBuffer plainSignSb = new StringBuffer();
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plainSignSb.append(EM_SIGN_MESS_1);
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plainSignSb.append(method.toUpperCase());
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plainSignSb.append(EM_SIGN_MESS_2);
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plainSignSb.append(SLASH);
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plainSignSb.append(URLDecoder.decode(xProtocolId, "UTF-8"));
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plainSignSb.append(timestampFixed);
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plainSignSb.append(randomString);
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if (content != null && content.length != 0) {
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plainSignSb.append(toMD5String(content));
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}
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String md5Sign = EncryptUtils.toMD5String(plainSignSb.toString());
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StringBuilder emSignSb = new StringBuilder();
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emSignSb.append(EM_SIGN_MESS_1);
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emSignSb.append(COLON);
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emSignSb.append(md5Sign);
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emSignSb.append(COLON);
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emSignSb.append(randomString);
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emSignSb.append(COLON);
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emSignSb.append(timestampFixed);
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String emSign = emSignSb.toString();
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return emSign;
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}
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public static byte[] sha3(byte[] bytes, int digit) {
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SHA3Digest digest = new SHA3Digest(digit);
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digest.update(bytes, 0, bytes.length);
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byte[] rsData = new byte[digest.getDigestSize()];
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digest.doFinal(rsData, 0);
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return rsData;
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}
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public static String sha256(String input) {
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try {
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MessageDigest digest = MessageDigest.getInstance("SHA-256");
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byte[] hash = digest.digest(input.getBytes());
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StringBuilder hexString = new StringBuilder();
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for (byte b : hash) {
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String hex = Integer.toHexString(0xff & b);
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if (hex.length() == 1) {
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hexString.append('0');
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}
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hexString.append(hex);
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}
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return hexString.toString();
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} catch (Exception e) {
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log.error("SHA-256 Hash failed", e);
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return null;
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}
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}
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public static String sha3(String data, int digit) {
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return Hex.toHexString(sha3(data.getBytes(), digit));
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}
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public static String toHexString(byte[] data) {
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return Hex.toHexString(data);
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}
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public static void main(String[] args) throws IOException {
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// EM-Sign:
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// 23082404151001:356b7041c37848b4f73a8ad5c9416f48:nBZTuInqo1:1721439297485
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long timestampFixed = 1721439297485L;
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String randomString = "nBZTuInqo1";
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byte[] mess = Base64.getDecoder().decode("0JryhAshy7JXgP+5sLmWwaurGM3YHWaFbGaKH/mi7oKN+5mlTnEp5LTeFJVtJTTR");
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String f13443a = EncryptUtils.decryptAesForEmSignMess(mess);
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String path = "C:\\Users\\Administrator\\Desktop\\Emoney\\login.request.body";
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FileInputStream in = new FileInputStream(new File(path));
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byte[] requestBody = new byte[in.available()];
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in.read(requestBody);
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in.close();
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String requestBodyStr = "{\"date\":0}";// new String(requestBody, "UTF-8") + '\0';
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requestBody = requestBodyStr.getBytes("UTF-8");
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RequestBody body = RequestBody.create(requestBodyStr, MediaType.parse("application/json"));
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okio.Buffer buffer = new okio.Buffer();
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body.writeTo(buffer);
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requestBody = buffer.readByteArray();
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String requestBodyMd5;
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if (requestBody == null || requestBody.length == 0) {
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requestBodyMd5 = "";
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} else {
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requestBodyMd5 = toMD5String(requestBody);
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}
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String str2 = "23082404151001" + "POST" + f13443a + "/"
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+ URLDecoder.decode("SmartInvestment%2FIndex%2FTianYan", "UTF-8") + timestampFixed + randomString
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+ requestBodyMd5;
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String md5 = EncryptUtils.toMD5String(str2);
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log.info("Handmade emsign md5: {}", md5);
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String emSign = getEMSign(requestBody, "POST", "SmartInvestment%2FIndex%2FTianYan", randomString, timestampFixed);
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log.info("Method emsign: {}", emSign);
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// 测试密码加解密
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String encryptPass = encryptAesForEmoneyPassword("123456");
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log.info("Encrypt pass for 123456: {}", encryptPass);
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String decryptPass = decryptAesForEmoneyPassword(encryptPass);
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log.info("Decrypt pass for {}: {}", encryptPass, decryptPass);
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}
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}
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