安全-md5
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2024-03-19 09:33:52
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工具类
import org.apache.commons.codec.binary.Hex;
import java.security.MessageDigest;
import java.util.Random;
public class MD5Util {
public static String md32(String src) {
try {
byte[] bs = MessageDigest.getInstance("MD5").digest(src.getBytes());
return new String(new Hex().encode(bs));
} catch (Exception e) {
return null;
}
}
public static String md16(String str) {
return md32(str).substring(8, 24);
}
public static String md32Salt(String input) {
Random r = new Random();
StringBuilder sb = new StringBuilder(16);
sb.append(r.nextInt(99999999)).append(r.nextInt(99999999));
int len = sb.length();
if (len < 16) {
for (int i = 0; i < 16 - len; i++) {
sb.append("0");
}
}
String salt = sb.toString();
input = md32(input + salt);
char[] cs = new char[48];
for (int i = 0; i < 48; i += 3) {
cs[i] = input.charAt(i / 3 * 2);
char c = salt.charAt(i / 3);
cs[i + 1] = c;
cs[i + 2] = input.charAt(i / 3 * 2 + 1);
}
return new String(cs);
}
public static boolean verify(String input, String md5) {
char[] cs1 = new char[32];
char[] cs2 = new char[16];
for (int i = 0; i < 48; i += 3) {
cs1[i / 3 * 2] = md5.charAt(i);
cs1[i / 3 * 2 + 1] = md5.charAt(i + 2);
cs2[i / 3] = md5.charAt(i + 1);
}
String salt = new String(cs2);
return md32(input + salt).equals(new String(cs1));
}
}
**网站
https://www.cmd5.com/
https://pmd5.com/
**工具
https://hashcat.net/hashcat/
https://github.com/hashcat/hashcat
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