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A word about encryption:

You can use  pgp(1) public-key encryption with both,  tar(1) and  afio(1) . Using  afio(1) is highly recommended, unless your archives will be small. Using  tar(1) together with  pgp(1) encryption limits your maximum size for archives to the free disk-space in your temporary directory.  

When using encryption, you will be prompted for a default pass-phrase   whenever you try to read the archive. This will temporarily get stored in a file unreadable for others. If you leave it empty,  pgp(1) will prompt you for the pass-phrase again and again with every singe file it decrypts. Please, do read the  pgp(1) manual page and documentation before using it!

There is also a problem with old versions of  afio(1) and  pgp(1) : If the encrypted file is bigger than the original one, current versions of  afio(1) will store it unencrypted! So check your logfiles carefully when using encryption. Please use at least  afio(1) version 2.4.2 when using encryption.

For legal reasons, I cannot include  pgp(1) with KBACKUP . Its several versions are available from ftp-servers all over the world, e.g. from ftp.th-darmstadt.de.


next up previous contents index
Next: Toggle Use of Double Up: Set Compression/Encryption Mode Previous: Set Compression/Encryption Mode
Jens Ritter
1998-08-18