Initial project

src/main/java/com/imyeyu/utils/Digest.java

@@ -0,0 +1,83 @@
+package com.imyeyu.utils;
+
+import java.math.BigInteger;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * @author 夜雨
+ * @version 2023-08-07 14:27
+ */
+public class Digest {
+
+	public static String md5(String data) throws NoSuchAlgorithmException {
+		return md5(data, StandardCharsets.UTF_8);
+	}
+
+	public static String md5(String data, Charset charset) throws NoSuchAlgorithmException {
+		return md5(data.getBytes(charset));
+	}
+
+	public static String md5(byte[] data) throws NoSuchAlgorithmException {
+		if (data == null || data.length == 0) {
+			return null;
+		}
+		MessageDigest md5 = MessageDigest.getInstance("MD5");
+		md5.update(data);
+		byte[] bytes = md5.digest();
+		char[] chars = new char[bytes.length * 2];
+		for (int i = 0, j = 0; i < bytes.length; i++) {
+			chars[j++] = Text.HEX_DIGITS_LOWER[bytes[i] >>> 4 & 0xF];
+			chars[j++] = Text.HEX_DIGITS_LOWER[bytes[i] & 0xF];
+		}
+		return new String(chars);
+	}
+
+	public static String sha1(String data) throws NoSuchAlgorithmException {
+		return sha1(data, StandardCharsets.UTF_8);
+	}
+
+	public static String sha1(String data, Charset charset) throws NoSuchAlgorithmException {
+		return sha1(data.getBytes(charset));
+	}
+
+	public static String sha1(byte[] bytes) throws NoSuchAlgorithmException {
+		MessageDigest sha = MessageDigest.getInstance("SHA");
+		sha.update(bytes);
+		return Text.byteToHex(sha.digest());
+	}
+
+	public static String sha256(String data) throws NoSuchAlgorithmException {
+		return sha256(data, StandardCharsets.UTF_8);
+	}
+
+	public static String sha256(String data, Charset charset) throws NoSuchAlgorithmException {
+		return sha256(data.getBytes(charset));
+	}
+
+	public static String sha256(byte[] bytes) throws NoSuchAlgorithmException {
+		MessageDigest sha = MessageDigest.getInstance("SHA-256");
+		sha.update(bytes);
+		return Text.byteToHex(sha.digest());
+	}
+
+	public static String sha512(String data) throws NoSuchAlgorithmException {
+		return sha512(data, StandardCharsets.UTF_8);
+	}
+
+	public static String sha512(String data, Charset charset) throws NoSuchAlgorithmException {
+		return sha512(data.getBytes(charset));
+	}
+
+	public static String sha512(byte[] bytes) throws NoSuchAlgorithmException {
+		MessageDigest sha = MessageDigest.getInstance("SHA-512");
+		BigInteger number = new BigInteger(1, sha.digest(bytes));
+		StringBuilder result = new StringBuilder(number.toString(16));
+		while (result.length() < 64) {
+			result.insert(0, "0");
+		}
+		return result.toString();
+	}
+}