About SM2 Decryption Tool
Decrypts a message utilizing the SM2 standard
Input: text. Output: binary bytes (text input uses UTF-8; a file retains its original bytes).
Example
Use “Try example” to load this public sample and its settings, then run it.
Settings used in this example
| Parameter | Example value | Input and choices |
|---|---|---|
| Private Key | "e74a72505084c3269aa9b696d603e3e08c74c6740212c11a31e26cdfe08bdf6a" | Text |
| Input Format | C1C3C2 | C1C3C2, C1C2C3 |
| Curve | sm2p256v1 | sm2p256v1 |
Sample keys and passwords are public. Never use them to protect real data.
Input
9a31bc0adb4677cdc4141479e3949572a55c3e6fb52094721f741c2bd2e179aaa87be6263bc1be602e473be3d5de5dce97f8248948b3a7e15f9f67f64aef21575e0c05e6171870a10ff9ab778dbef24267ad90e1a9d47d68f757d57c4816612e9829f804025dea05a511cda39371c22a2828f976f72e
Result
I am a small plaintext
Parameters
| Parameter | Default value | Input and choices |
|---|---|---|
| Private Key | "DEADBEEF" | Text |
| Input Format | C1C3C2 | C1C3C2, C1C2C3 |
| Curve | sm2p256v1 | sm2p256v1 |
Before interpreting the result
Parsing a certificate shows its fields; it does not establish trust in the issuer or validate a certificate chain. Signing and verification require the algorithm and key format expected by the other party.
How to use this page
- Paste your input or open a local file.
- Adjust tool options if needed, then choose Run tool.
- Copy the result or download the original output bytes.
Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.