Crypt4Free is a file encryption software with ability to encrypt files and text messages. Support for ZIP files and capability to secure delete sensitive files. It uses two encryption algorithms to protect your files: Blowfish & DESX. And "Quick Wipe" secure files erasure algorithm to wipe sensitive files.
Using Crypt4Free is really easy, all you have to do is simply navigate to the desired file or folder using the drive tree representation, select the desired data and then click the desired button on the right panel. This panel comes with several buttons, clicking any of these buttons will alter the panel in showing some previously hidden controls that allow users to customize the desired action.
Encrypting a file or folder means parsing its content and applying a previously selected algorithm. Crypt4Free is able to use two such algorithms, the weaker DESX that is implemented using a 128-bit key and the much stronger Blowfish that uses a 448-bit key. Users will need to enter a password and then confirm it. This password will be used to encrypt the data and a password reminder in the form of a riddle can be added, too.
As the successfulness of the encryption depends somewhat on the password chosen, Crypt4Free has a number of nice features that are directly dealing with passwords. A "virtual keyboard" window is also available and here users can create their own password, or they can use the "generate" feature in order to come up with a completely random string of characters that is made up using one of the three available hash functions: SHA1, RIPEMD160 and WHIRPOOL. The user or machine generated password can also be saved to a file for later use.
Crypt4Free can apply a number of default actions to the source file or folder after the encryption process takes place. Users will have the opportunity to either leave the source data alone, as it is, or delete it. A "wipe" option is also available and it means that the source data will be securely deleted from the drive, any attempt to recover the unprotected information been impossible.
As Crypt4Free can also email the protected or source data files, a client email program is required in order to take advantage of all its features. After encrypting data, this handy software utility can do the reverse process too, transforming a protected file or folder into human or computer readable data. The decryption process is conditioned by the presence of a password, as Crypt4Free has no decrypting capabilities by force. Just like the encrypting process, the reverse operation can benefit from passwords saved in special files, as users will find it hard to remember one of the machine generated passwords.
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