man > EVP_CIPHER-RC2(7)

man perldoc info pydoc3 ri search

📛 NAME

EVP_CIPHER-RC2 - The RC2 EVP_CIPHER implementations

🚀 Quick Reference

Use Case	Command	Description
Encrypt file with RC2-CBC	openssl enc -rc2-cbc -in plain.txt -out encrypted.bin -pass pass:secret	Encrypts plain.txt using RC2‑CBC and a password‑derived key
Decrypt file	openssl enc -d -rc2-cbc -in encrypted.bin -out plain.txt -pass pass:secret	Decrypts encrypted.bin back to plain.txt
Use 40‑bit effective key length	openssl enc -rc2-40-cbc -in plain.txt -out encrypted.bin -pass pass:secret	Forces RC2 to use a 40‑bit key (equivalent to export‑grade)
List available RC2 ciphers	openssl list -cipher-algorithms | grep RC2	Shows all RC2 variants supported by the current OpenSSL build

📖 DESCRIPTION

Support for RC2 symmetric encryption using the EVP_CIPHER API.

🔑 Algorithm Names

The following algorithms are available in the legacy provider:

• "RC2-CBC", "RC2" or "RC2-128"
• "RC2-40-CBC" or "RC2-40"
• "RC2-64-CBC" or "RC2-64"
• "RC2-ECB"
• "RC2-CFB"
• "RC2-OFB"

⚙️ Parameters

This implementation supports the parameters described in "PARAMETERS" in EVP_EncryptInit(3).

📚 SEE ALSO

provider-cipher(7), OSSL_PROVIDER-legacy(7)

©️ COPYRIGHT

Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

3.0.2   2026-06-02   EVP_CIPHER-RC2(7SSL)

📛 NAME 🚀 Quick Reference 📖 DESCRIPTION 📚 SEE ALSO ©️ COPYRIGHT