SM3 Hash Calculator

Online SM3 hash calculator. Chinese national standard cryptographic hash algorithm (GB/T 32905-2016).

Input Format:

SM3256 bits/64 characters

SM3 Algorithm Knowledge

Introduction

SM3 is a cryptographic hash algorithm standard published by the State Cryptography Administration of China, used for digital signatures, message authentication codes, and random number generation.

Features

SM3 produces a 256-bit (32-byte) hash value and provides high security and computational efficiency.

SM3 Characteristics

  • Compression: Messages of any length are compressed to a fixed length
  • One-way: Difficult to reverse engineer the original message from hash
  • Collision resistance: Hard to find two different messages with same hash
  • Avalanche effect: Small changes in input cause significant changes in output

Applications

  • Digital signatures
  • Message integrity verification
  • Random number generation
  • Key derivation
  • E-government systems
  • Financial transaction systems
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