ccrypt 1.11 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. Ccrypt for Mac is categorized as Security Tools. This free Mac app is an intellectual property of Peter Selinger.
From the developer:
ccrypt is a tool for encrypting and decrypting files and streams. It is based on the Rijndael block cipher, a version of which is also used in the Advanced Encryption Standard (AES).
The algorithm provided by ccrypt is not symmetric. The most common way to invoke ccrypt is via the commands ccencrypt and ccdecrypt.
You may want to check out more software for Mac, such as Key Holder or PasswordVault Lite, which might be related to ccrypt.