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/*
* Copyright (c) 2019-2029, Dreamlu 卢春梦 ([email protected] & www.dreamlu.net).
*
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/lgpl.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.tio.utils.mica;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
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 L.cm
*/
public class DigestUtils {
/**
* Calculates the MD5 digest.
*
* @param bytes Data to digest
* @return MD5 digest as a hex array
*/
public static byte[] md5(final byte[] bytes) {
return digest("MD5", bytes);
}
/**
* Calculates the MD5 digest.
*
* @param data Data to digest
* @return MD5 digest as a hex array
*/
public static byte[] md5(final String data) {
return md5(data.getBytes(StandardCharsets.UTF_8));
}
/**
* 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 encodeHex(md5(data));
}
/**
* 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 encodeHex(md5(bytes));
}
/**
* sha1
*
* @param data Data to digest
* @return digest as a hex array
*/
public static byte[] sha1(String data) {
return sha1(data.getBytes(StandardCharsets.UTF_8));
}
/**
* sha1
*
* @param bytes Data to digest
* @return digest as a hex array
*/
public static byte[] sha1(final byte[] bytes) {
return digest("SHA-1", bytes);
}
/**
* sha1Hex
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha1Hex(String data) {
return encodeHex(sha1(data.getBytes(StandardCharsets.UTF_8)));
}
/**
* sha1Hex
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha1Hex(final byte[] bytes) {
return encodeHex(sha1(bytes));
}
/**
* SHA224
*
* @param data Data to digest
* @return digest as a byte array
*/
public static byte[] sha224(String data) {
return sha224(data.getBytes(StandardCharsets.UTF_8));
}
/**
* SHA224
*
* @param bytes Data to digest
* @return digest as a byte array
*/
public static byte[] sha224(final byte[] bytes) {
return digest("SHA-224", bytes);
}
/**
* SHA224Hex
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha224Hex(String data) {
return encodeHex(sha224(data.getBytes(StandardCharsets.UTF_8)));
}
/**
* SHA224Hex
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha224Hex(final byte[] bytes) {
return encodeHex(sha224(bytes));
}
/**
* sha256Hex
*
* @param data Data to digest
* @return digest as a byte array
*/
public static byte[] sha256(String data) {
return sha256(data.getBytes(StandardCharsets.UTF_8));
}
/**
* sha256Hex
*
* @param bytes Data to digest
* @return digest as a byte array
*/
public static byte[] sha256(final byte[] bytes) {
return digest("SHA-256", bytes);
}
/**
* sha256Hex
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha256Hex(String data) {
return encodeHex(sha256(data.getBytes(StandardCharsets.UTF_8)));
}
/**
* sha256Hex
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha256Hex(final byte[] bytes) {
return encodeHex(sha256(bytes));
}
/**
* sha384
*
* @param data Data to digest
* @return digest as a byte array
*/
public static byte[] sha384(String data) {
return sha384(data.getBytes(StandardCharsets.UTF_8));
}
/**
* sha384
*
* @param bytes Data to digest
* @return digest as a byte array
*/
public static byte[] sha384(final byte[] bytes) {
return digest("SHA-384", bytes);
}
/**
* sha384Hex
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha384Hex(String data) {
return encodeHex(sha384(data.getBytes(StandardCharsets.UTF_8)));
}
/**
* sha384Hex
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha384Hex(final byte[] bytes) {
return encodeHex(sha384(bytes));
}
/**
* sha512Hex
*
* @param data Data to digest
* @return digest as a byte array
*/
public static byte[] sha512(String data) {
return sha512(data.getBytes(StandardCharsets.UTF_8));
}
/**
* sha512Hex
*
* @param bytes Data to digest
* @return digest as a byte array
*/
public static byte[] sha512(final byte[] bytes) {
return digest("SHA-512", bytes);
}
/**
* sha512Hex
*
* @param data Data to digest
* @return digest as a hex string
*/
public static String sha512Hex(String data) {
return encodeHex(sha512(data.getBytes(StandardCharsets.UTF_8)));
}
/**
* sha512Hex
*
* @param bytes Data to digest
* @return digest as a hex string
*/
public static String sha512Hex(final byte[] bytes) {
return encodeHex(sha512(bytes));
}
/**
* digest
*
* @param algorithm 算法
* @param bytes Data to digest
* @return digest byte array
*/
public static byte[] digest(String algorithm, byte[] bytes) {
try {
MessageDigest md = MessageDigest.getInstance(algorithm);
return md.digest(bytes);
} catch (NoSuchAlgorithmException e) {
throw ExceptionUtils.unchecked(e);
}
}
/**
* 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) {
return encodeHex(digest(algorithm, bytes));
}
/**
* hmacMd5
*
* @param data Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacMd5(String data, String key) {
return hmacMd5(data.getBytes(StandardCharsets.UTF_8), key);
}
/**
* hmacMd5
*
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacMd5(final byte[] bytes, String key) {
return digestHmac("HmacMD5", bytes, key);
}
/**
* 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 encodeHex(hmacMd5(data.getBytes(StandardCharsets.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 encodeHex(hmacMd5(bytes, key));
}
/**
* hmacSha1
*
* @param data Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha1(String data, String key) {
return hmacSha1(data.getBytes(StandardCharsets.UTF_8), key);
}
/**
* hmacSha1
*
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha1(final byte[] bytes, String key) {
return digestHmac("HmacSHA1", 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 encodeHex(hmacSha1(data.getBytes(StandardCharsets.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 encodeHex(hmacSha1(bytes, key));
}
/**
* hmacSha224
*
* @param data Data to digest
* @param key key
* @return digest as a hex string
*/
public static byte[] hmacSha224(String data, String key) {
return hmacSha224(data.getBytes(StandardCharsets.UTF_8), key);
}
/**
* hmacSha224
*
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static byte[] hmacSha224(final byte[] bytes, String key) {
return digestHmac("HmacSHA224", 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 encodeHex(hmacSha224(data.getBytes(StandardCharsets.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 encodeHex(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 hmacSha256(data.getBytes(StandardCharsets.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 digestHmac("HmacSHA256", bytes, key);
}
/**
* hmacSha256 Hex
*
* @param data Data to digest
* @param key key
* @return digest as a byte array
*/
public static String hmacSha256Hex(String data, String key) {
return encodeHex(hmacSha256(data.getBytes(StandardCharsets.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 encodeHex(hmacSha256(bytes, key));
}
/**
* hmacSha384
*
* @param data Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha384(String data, String key) {
return hmacSha384(data.getBytes(StandardCharsets.UTF_8), key);
}
/**
* hmacSha384
*
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha384(final byte[] bytes, String key) {
return digestHmac("HmacSHA384", 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 encodeHex(hmacSha384(data.getBytes(StandardCharsets.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 encodeHex(hmacSha384(bytes, key));
}
/**
* hmacSha512
*
* @param data Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha512(String data, String key) {
return hmacSha512(data.getBytes(StandardCharsets.UTF_8), key);
}
/**
* hmacSha512
*
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] hmacSha512(final byte[] bytes, String key) {
return digestHmac("HmacSHA512", 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 encodeHex(hmacSha512(data.getBytes(StandardCharsets.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 encodeHex(hmacSha512(bytes, key));
}
/**
* digest Hmac Hex
*
* @param algorithm 算法
* @param text text
* @param key key
* @return digest as a hex string
*/
public static String digestHmacHex(String algorithm, String text, String key) {
return digestHmacHex(algorithm, text.getBytes(StandardCharsets.UTF_8), key);
}
/**
* digest Hmac Hex
*
* @param algorithm 算法
* @param bytes Data to digest
* @param key key
* @return digest as a hex string
*/
public static String digestHmacHex(String algorithm, final byte[] bytes, String key) {
return encodeHex(digestHmac(algorithm, bytes, key));
}
/**
* digest Hmac
*
* @param algorithm 算法
* @param bytes Data to digest
* @param key key
* @return digest as a byte array
*/
public static byte[] digestHmac(String algorithm, final byte[] bytes, String key) {
SecretKey secretKey = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), algorithm);
try {
Mac mac = Mac.getInstance(secretKey.getAlgorithm());
mac.init(secretKey);
return mac.doFinal(bytes);
} catch (NoSuchAlgorithmException | InvalidKeyException e) {
throw ExceptionUtils.unchecked(e);
}
}
/**
* encode Hex
*
* @param bytes Data to Hex
* @return bytes as a hex string
*/
public static String encodeHex(byte[] bytes) {
return HexUtils.encodeToString(bytes);
}
/**
* decode Hex
*
* @param hexStr Hex string
* @return decode hex to bytes
*/
public static byte[] decodeHex(final String hexStr) {
return HexUtils.decode(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(String a, String b) {
if (a == null || b == null) {
return false;
}
return slowEquals(a.getBytes(StandardCharsets.UTF_8), b.getBytes(StandardCharsets.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(byte[] a, 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 < b.length; i++) {
diff |= a[i] ^ b[i];
}
return diff == 0;
}
}