About RC2 Encryption Tool
RC2 (also known as ARC2) is a symmetric-key block cipher designed by Ron Rivest in 1987. 'RC' stands for 'Rivest Cipher'. Key: RC2 uses a variable size key. You can generate a password-based key using one of the KDF operations. IV: To run the cipher in CBC mode, the Initialization Vector should be 8 bytes long. If the IV is left blank, the cipher will run in ECB mode. Padding: In both CBC and ECB mode, PKCS#7 padding will be used.
Input: text. Output: text.
Format reference: RC2 Encrypt background and specification
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 |
|---|---|---|
| Key | {"option":"Hex","string":""} | Key/text encoding: Hex, UTF8, Latin1, Base64 |
| IV | {"option":"Hex","string":""} | Key/text encoding: Hex, UTF8, Latin1, Base64 |
| Input | Hex | Raw, Hex |
| Output | Hex | Hex, Raw |
Sample keys and passwords are public. Never use them to protect real data.
Input
7a0e643132750e96d805d11e9e48e281fa39a41039286423cc1c045e5442b40bf1c3f2822bded3f9c8ef11cb25da64dda9c7ab87c246bd305385150c98f31465c2a6180fe81d31ea289b916504d5a12e1de26cb10adba84a0cb0c86f94bc14bc554f3018
Result
d3644d898b51a544f690b506c3fd0caeb7a1e6097f7ea28f69b909a4d8805c9a05f4cade8b281d3f044fa069374efb90e94723622c86afc17caee394ffbee0abe627de299208460eb981c9d56f9df885091c6c89e2ee173264b2820b8e67675214e6545a05dc0d3f
Parameters
| Parameter | Default value | Input and choices |
|---|---|---|
| Key | {"option":"Hex","string":""} | Key/text encoding: Hex, UTF8, Latin1, Base64 |
| IV | {"option":"Hex","string":""} | Key/text encoding: Hex, UTF8, Latin1, Base64 |
| Input | Raw | Raw, Hex |
| Output | Hex | Hex, Raw |
Before interpreting the result
Use the exact key encoding, mode, padding and IV expected by the source system. Historical ciphers are useful for learning and analysis. Encoding alone provides no confidentiality.
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.