KEYCHAIN File

<p style="text-align: justify;">The .KEYCHAIN file format was originally developed by Apple Corporation. It is a password management system that is supported only in the Mac Operating system. It was initially introduced with the Mac OS 8.6 version, and later it has been a part of all the subsequent Mac OS versions including the Mac OS X.<br /><br />The .KEYCHAIN file extension can comprise of several kinds of data, such as secure notes, certificates, private keys, passwords for encrypted disk images, groupware applications, wireless networks, network shares, SSH accounts, FTP servers and websites.</p>