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.

The tools on this site are strictly prohibited for illegal purposes. We do not bear any losses and responsibilities caused by using the tools.
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