SHA1 Hash Generator Online Tool

This online SHA1 Hash Generator tool helps you to encrypt one input string into a fixed 160 bits SHA1 String.

Paste your Input String or drag text file in the first textbox, then press "SHA1 Encrypt" button, and the result will be displayed in the second textbox.

Absolutely NOT, this SHA1 Hash Generator doing all the formatting work on the client side, all logic are implemented by Javascript. There are 2 major advantages: 1.Your data never transmitted in the Open Internet, so you know it's secure; 2.It's much faster than doing all the work in the server side, because there is no Internet Delay.

RFC 3174: https://tools.ietf.org/html/rfc3174

Python Implementation of SHA1 (hashlib): https://docs.python.org/3/library/hashlib.html

Java Implementation of SHA1: https://docs.oracle.com/javase/7/docs/api/java/security/MessageDigest.html

PHP Implementation of SHA1: http://php.net/manual/en/function.sha1.php

import hashlib

def sha1_generator(str):
    m = hashlib.sha1()
    m.update(str.encode())
    return m.hexdigest()
    

import java.math.BigInteger;
import java.security.MessageDigest;

public String generate(String str){
    MessageDigest md = MessageDigest.getInstance("SHA-1");
    md.update(str.getBytes());
    byte[] digest = md.digest();
    String result = new BigInteger(1, digest).toString(16).toUpperCase();
    return result;
}
    

root@instance-1:/var/log/apache2# openssl dgst -sha1 access.log
SHA1(access.log)= dcf947a7c318007b8620d112a62cc7b1a7ea4eda