I suppose I could use a fig leaf to cover the price of this software so that this posting might seem less "commercial", but - what the hell - this isn't sci.crypt and we're not concerned with maintaining academic purity. This encryption software is available *now*. You might consider shelling out a few bucks (which allows you to make use of the result of a few years' work) before the govt. makes it illegal to buy, sell or use encryption software. New Version Release Announcement Dolphin Software releases three new versions of MS-DOS encryption software Dolphin Software's data encryption software has been released in two new versions, Dolphin Encrypt (V. 2.11) and Dolphin Encrypt Advanced Version (V. 2.10). The encryption routines are also available as a C function library. Both Dolphin Encrypt and the Advanced Version use a symmetric key encryption process to encrypt data on MS-DOS computers, and can encrypt multiple files with a single command. File pathnames are supported and there is extensive error checking. If you wish to transmit encrypted data as email then Dolphin Encrypt can be told to output the encrypted data as text. There is no limit on the size, the type or the number of files. Files are normally compressed during encryption. Screen output can be sent to a file or to a printer for a record of operations. The encryption process, described in detail in the documentation, relies partly on the RSA Data Security, Inc., MD5 Message Digest Algorithm. The Advanced Version has all of the features described above, and also encrypts whole floppy disks. All common disk sizes are supported and are automatically recognized. Additional command line options are supported, including the options of echoing or not echoing the encryption key during entry. There is a decrypt-and-display-only option (with no plaintext written to disk). The Advanced Version can be run silently from another application program to encrypt or decrypt files. It has a script language (with if-else-endif) which allows automation of frequently-performed, complex or conditional operations. The Advanced Version comes with utility programs to read multiple text files, compare files, purge files and wipe a disk clean of data; these can be called from scripts. The Dolphin Encryption Library is a C function library containing functions for encrypting and decrypting blocks of data in memory (from 1 byte to about 10K in size). Complete source code is included. Dolphin Encrypt is priced at $64.00 and the Advanced Version at $128.00. The function library is available for licensing to developers. For more information contact Dolphin Software at 4815 W. Braker Ln. #502, Austin, TX 78759 (phone 512-479-9208).