🔒 SM4 Encryption

About this tool

Chinese national standard SM4 symmetric cipher

SM4 Encryption is part of Hash & Crypto on Orange Peel Toolbox. It runs entirely in your browser — files and text you paste stay on your device.

How to use

Open the tool below and follow its on-screen controls. Most tools are icon-driven and usable without reading Chinese; input fields accept English text and numbers unless stated otherwise.

Open the tool

The interactive tool loads below. Prefer the original Chinese page? Open it here

Related tools

• MD5 HashCompute the MD5 hash of text
• SHA HashSHA-1, SHA-256 and SHA-512 hashes
• HMAC GeneratorHMAC-MD5, HMAC-SHA1 and HMAC-SHA256
• AES EncryptionAES symmetric encryption and decryption
• DES EncryptionDES symmetric encryption and decryption
• SM3 HashChinese national standard SM3 hash digest
• RSA EncryptionRSA public-key encryption and private-key decryption
• Caesar CipherClassic letter-shift encryption with adjustable offset