This repository provides implementations of cryptographic hashing algorithms: SHA-1, SHA-256, and SHA-512.

Hashing is widely used in security-related applications, such as data integrity, password hashing, and digital signatures.

Supported Algorithms:

• SHA-1 (⚠️ Insecure, included for legacy support)
• SHA-256 (🔒 Secure, widely used)
• SHA-512 (🔐 High-security with longer hash output)

---

🚀 Quick Start

Algorithm	Description	Hash Size
SHA-1	Legacy algorithm (not secure)	160 bits (20 bytes)
SHA-256	Secure, widely used (SHA-2 family)	256 bits (32 bytes)
SHA-512	Secure with larger output (SHA-2)	512 bits (64 bytes)

---

🔐 SHA-1

The SHA-1 algorithm produces a 160-bit hash value (20-byte). Although SHA-1 is no longer considered secure for cryptographic purposes, it is still used in some legacy systems.

console.log(Sha1.hash('hash this string'));
// Output: 91aebc21fa63504351c19cc2add5e04478664d94

🔐 SHA-256

The SHA-256 algorithm, part of the SHA-2 family, produces a 256-bit hash value (32-byte). It is commonly used in security protocols, blockchain, and data integrity verification.

console.log(Sha256.hash('hash this string'));
// Output: eedb752a1e7a2691ebd896ce86d868c5ddc795419be5925030cbee768153700b

🔐 SHA-512

The SHA-512 algorithm, also part of the SHA-2 family, generates a 512-bit hash value (64-byte). It provides enhanced security and is used in applications that require a larger hash output.

console.log(Sha512.hash('hash this string'));
// Output: c9779fc579ebd199744f1004..........a5cc9cd35af7a0e53

Algorithm	Use Case	Recommendation
SHA-1	Legacy systems, backward compatibility	⚠️ Avoid if possible
SHA-256	Security, blockchain, certificates	👍 Recommended
SHA-512	File integrity, high-security apps	🔐 Highly recommended

The implementations provided here are for educational purposes and may not be optimized for 
all production-level security applications.
For secure, modern cryptographic solutions, consider using well-maintained libraries like:

crypto-js

or

js-sha3