Hash Generator

What Is SHA-256?

SHA-256 (Secure Hash Algorithm 256-bit) is from the SHA-2 family, designed by the NSA and published by NIST in 2001. It produces a 256-bit hash represented as 64 hexadecimal characters. It is currently the most widely used cryptographic standard in the world.

Primary Use Cases

• TLS/SSL certificates and HTTPS protocol
• Bitcoin blockchain and cryptocurrency systems
• Digital signatures and S/MIME protocol
• Password storage with salt in Linux systems
• Code signing for executables and software packages
• JWT tokens and modern authentication systems

Why SHA-256?

SHA-256 strikes an ideal balance between security and performance. No practical vulnerabilities have been discovered to date. It is recommended for all new applications requiring encryption, data integrity, and authentication.