SM2 Encryption/Decryption Online
Online SM2 public key cryptography tool. Chinese national standard encryption algorithm for digital signatures and key exchange.
Key Pair Management
Encryption & Decryption
Plain Text Format:
Cipher Text Format:
Digital Signature
Message to Sign
Signature Result
About SM2
What is SM2?
SM2 is a public key cryptographic algorithm based on elliptic curves. It is part of Chinese commercial cryptography standard.
Key Features
SM2 provides similar security level as RSA-2048 with shorter key lengths, making it more efficient.
Applications
Widely used in Chinese financial systems, government systems, and digital certificates.