org.macrocloud.kernel.toolkit.utils.DigestUtil Maven / Gradle / Ivy
package org.macrocloud.kernel.toolkit.utils;
import org.springframework.lang.Nullable;
import org.springframework.util.DigestUtils;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* 加密相关工具类直接使用Spring util封装，减少jar依赖.
*
* @author macro
*/
public class DigestUtil extends org.springframework.util.DigestUtils {
/** The Constant HEX_CODE. */
private static final char[] HEX_CODE = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
/**
* Calculates the MD5 digest and returns the value as a 32 character hex string.
*
* @param data Data to digest
* @return MD5 digest as a hex string
*/
public static String md5Hex(final String data) {
return DigestUtils.md5DigestAsHex(data.getBytes(Charsets.UTF_8));
}
/**
* Return a hexadecimal string representation of the MD5 digest of the given bytes.
*
* @param bytes the bytes to calculate the digest over
* @return a hexadecimal digest string
*/
public static String md5Hex(final byte[] bytes) {
return DigestUtils.md5DigestAsHex(bytes);
}
/**
* sha1Hex.
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha1Hex(String data) {
return DigestUtil.sha1Hex(data.getBytes(Charsets.UTF_8));
}
/**
* sha1Hex.
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha1Hex(final byte[] bytes) {
return DigestUtil.digestHex("SHA-1", bytes);
}
/**
* SHA224Hex.
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha224Hex(String data) {
return DigestUtil.sha224Hex(data.getBytes(Charsets.UTF_8));
}
/**
* SHA224Hex.
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha224Hex(final byte[] bytes) {
return DigestUtil.digestHex("SHA-224", bytes);
}
/**
* sha256Hex.
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha256Hex(String data) {
return DigestUtil.sha256Hex(data.getBytes(Charsets.UTF_8));
}
/**
* sha256Hex.
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha256Hex(final byte[] bytes) {
return DigestUtil.digestHex("SHA-256", bytes);
}
/**
* sha384Hex.
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha384Hex(String data) {
return DigestUtil.sha384Hex(data.getBytes(Charsets.UTF_8));
}
/**
* sha384Hex.
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha384Hex(final byte[] bytes) {
return DigestUtil.digestHex("SHA-384", bytes);
}
/**
* sha512Hex.
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha512Hex(String data) {
return DigestUtil.sha512Hex(data.getBytes(Charsets.UTF_8));
}
/**
* sha512Hex.
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha512Hex(final byte[] bytes) {
return DigestUtil.digestHex("SHA-512", bytes);
}
/**
* digest Hex.
*
* @param algorithm 算法
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String digestHex(String algorithm, byte[] bytes) {
try {
MessageDigest md = MessageDigest.getInstance(algorithm);
return encodeHex(md.digest(bytes));
} catch (NoSuchAlgorithmException e) {
throw Exceptions.unchecked(e);
}
}
/**
* hmacMd5 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacMd5Hex(String data, String key) {
return DigestUtil.hmacMd5Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacMd5 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacMd5Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacMD5", bytes, key);
}
/**
* hmacSha1 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha1Hex(String data, String key) {
return DigestUtil.hmacSha1Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha1 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha1Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacSHA1", bytes, key);
}
/**
* hmacSha224 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha224Hex(String data, String key) {
return DigestUtil.hmacSha224Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha224 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha224Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacSHA224", bytes, key);
}
/**
* hmacSha256.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static byte[] hmacSha256(String data, String key) {
return DigestUtil.hmacSha256(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha256.
*
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha256(final byte[] bytes, String key) {
return DigestUtil.digestHMac("HmacSHA256", bytes, key);
}
/**
* hmacSha256 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha256Hex(String data, String key) {
return DigestUtil.hmacSha256Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha256 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha256Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacSHA256", bytes, key);
}
/**
* hmacSha384 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha384Hex(String data, String key) {
return DigestUtil.hmacSha384Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha384 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha384Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacSHA384", bytes, key);
}
/**
* hmacSha512 Hex.
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha512Hex(String data, String key) {
return DigestUtil.hmacSha512Hex(data.getBytes(Charsets.UTF_8), key);
}
/**
* hmacSha512 Hex.
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String hmacSha512Hex(final byte[] bytes, String key) {
return DigestUtil.digestHMacHex("HmacSHA512", bytes, key);
}
/**
* digest HMac Hex.
*
* @param algorithm 算法
* @param bytes Data to digest
* @param key the key
* @return digest as a hex string
*/
public static String digestHMacHex(String algorithm, final byte[] bytes, String key) {
SecretKey secretKey = new SecretKeySpec(key.getBytes(Charsets.UTF_8), algorithm);
try {
Mac mac = Mac.getInstance(secretKey.getAlgorithm());
mac.init(secretKey);
return DigestUtil.encodeHex(mac.doFinal(bytes));
} catch (NoSuchAlgorithmException | InvalidKeyException e) {
throw Exceptions.unchecked(e);
}
}
/**
* digest HMac.
*
* @param algorithm 算法
* @param bytes Data to digest
* @param key the key
* @return digest as a byte array
*/
public static byte[] digestHMac(String algorithm, final byte[] bytes, String key) {
SecretKey secretKey = new SecretKeySpec(key.getBytes(Charsets.UTF_8), algorithm);
try {
Mac mac = Mac.getInstance(secretKey.getAlgorithm());
mac.init(secretKey);
return mac.doFinal(bytes);
} catch (NoSuchAlgorithmException | InvalidKeyException e) {
throw Exceptions.unchecked(e);
}
}
/**
* encode Hex.
*
* @param bytes Data to Hex
* @return bytes as a hex string
*/
public static String encodeHex(byte[] bytes) {
StringBuilder r = new StringBuilder(bytes.length * 2);
for (byte b : bytes) {
r.append(HEX_CODE[(b >> 4) & 0xF]);
r.append(HEX_CODE[(b & 0xF)]);
}
return r.toString();
}
/**
* decode Hex.
*
* @param hexStr Hex string
* @return decode hex to bytes
*/
public static byte[] decodeHex(final String hexStr) {
return DatatypeConverterUtil.parseHexBinary(hexStr);
}
/**
* 比较字符串，避免字符串因为过长，产生耗时.
*
* @param a String
* @param b String
* @return 是否相同
*/
public static boolean slowEquals(@Nullable String a, @Nullable String b) {
if (a == null || b == null) {
return false;
}
return DigestUtil.slowEquals(a.getBytes(Charsets.UTF_8), b.getBytes(Charsets.UTF_8));
}
/**
* 比较 byte 数组，避免字符串因为过长，产生耗时.
*
* @param a byte array
* @param b byte array
* @return 是否相同
*/
public static boolean slowEquals(@Nullable byte[] a, @Nullable byte[] b) {
if (a == null || b == null) {
return false;
}
if (a.length != b.length) {
return false;
}
int diff = a.length ^ b.length;
for (int i = 0; i < a.length; i++) {
diff |= a[i] ^ b[i];
}
return diff == 0;
}
/**
* 自定义加密 将前端传递的密码再次加密.
*
* @param data 数据
* @return {String}
*/
public static String hex(String data) {
if (StringUtil.isBlank(data)) {
return StringPool.EMPTY;
}
return sha1Hex(data);
}
/**
* 用户密码加密规则 先MD5再SHA1.
*
* @param data 数据
* @return {String}
*/
public static String encrypt(String data) {
if (StringUtil.isBlank(data)) {
return StringPool.EMPTY;
}
return sha1Hex(md5Hex(data));
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy