SHA-1 Random ID Generator

About

SHA-1 (Secure Hash Algorithm 1) generates a 160-bit (20-byte) hash value, typically rendered as a 40-character hexadecimal number. While SHA-1 is considered cryptographically broken and vulnerable to collision attacks, it's still used for generating deterministic unique identifiers from random input data in non-security-critical contexts. SHA-1 is deprecated for cryptographic purposes but may be used for legacy compatibility.

Use Cases

• •Legacy system compatibility
• •Non-security-critical unique identifiers
• •Git commit hashes (legacy)
• •Content-addressable storage (non-cryptographic)
• •Deterministic ID generation from input

How to Generate

import CryptoJS from 'crypto-js';

// Hash input text
const hash = CryptoJS.SHA1('input text').toString();

// Or hash random bytes
const randomBytes = CryptoJS.lib.WordArray.random(16);
const randomHash = CryptoJS.SHA1(randomBytes).toString();