CryptographyDEV
Text encoding, cryptographic hashing, symmetric & asymmetric encryption.
About Cryptography Toolkit
Overview
This toolkit integrates 20+ industry-standard cryptographic algorithms, covering four major categories: text encoding, cryptographic hashing, symmetric encryption, and asymmetric encryption.
100% Client-Side Processing—
Zero Network Transmission:
All cryptographic operations are performed locally on your device. All sensitive data (plaintext, ciphertext, keys, etc.) never leaves your device, ensuring complete privacy and security.
Select a specific algorithm to view detailed technical documentation, including algorithm history, security analysis, recommended parameters, and professional guidance.
100% Client-Side Processing—
Zero Network Transmission:
All cryptographic operations are performed locally on your device. All sensitive data (plaintext, ciphertext, keys, etc.) never leaves your device, ensuring complete privacy and security.
Select a specific algorithm to view detailed technical documentation, including algorithm history, security analysis, recommended parameters, and professional guidance.
SM3 (国密)
SM3 is a cryptographic hash standard (GM/T 0004-2012) published by China's State Cryptography Administration in 2010, producing 256-bit hash values. It's a core algorithm in China's commercial cryptography system.
Key Features: SM3's design draws from SHA-256 with improvements in message expansion and compression. Uses 64 rounds of iteration with security comparable to SHA-256.
Use Cases: Primarily for Chinese cryptography compliance—government systems, financial institutions, and critical infrastructure. Regulations require domestic cryptographic algorithms for systems involving national security and public welfare.
Recommendation: Use SM3 if your project requires national cryptography compliance or deployment in Chinese government/financial sectors. For international projects without compliance requirements, SHA-256 or SHA-3 are more universal.
Key Features: SM3's design draws from SHA-256 with improvements in message expansion and compression. Uses 64 rounds of iteration with security comparable to SHA-256.
Use Cases: Primarily for Chinese cryptography compliance—government systems, financial institutions, and critical infrastructure. Regulations require domestic cryptographic algorithms for systems involving national security and public welfare.
Recommendation: Use SM3 if your project requires national cryptography compliance or deployment in Chinese government/financial sectors. For international projects without compliance requirements, SHA-256 or SHA-3 are more universal.