SM3, SM3 Chinese standard hash algorithm
Technical Specifications
- Hash Length:
- 256 bit (64 hex characters)
- Security Level:
- High - Chinese national standard
- Block Size:
- 512 bit
- Maximum Message Size:
- 2^64 - 1 bit
- Rounds:
- 64 rounds
Usage Areas
- Digital signatures and certificates in China
- Data integrity verification
- Chinese cryptographic protocols
- National security applications
- Used with SM2 digital signature algorithm
Features
- Chinese national standard: GB/T 32905
- SHA-256-like structure: Familiar and reliable design
- High security: Compliant with Chinese cryptographic standards
- Deterministic: Same input always produces the same hash
- One-way: Impossible to derive original data from hash
Standards and References
- GB/T 32905 (Chinese National Standard)
- ISO/IEC 10118-3:2018