I just uploaded a user-friendly, Windows front-end to Hal Finney's SECSPLIT.EXE (based on Shamir's secret-sharing) called Secret Sharer. The interface supports splitting and restoring files or passphrases. Nothing fancy, but a simple solution for Windows users who want to do their own key (or whatever) escrow. Secret Sharer is freeware, and is available from either: http://www.eskimo.com/~joelm ftp.eskimo.com /joelm/secshare.zip I'm probably being over-cautious, but because of ITAR, SECSPLIT.EXE is not included in the ZIP file. FTP sites for downloading are listed in the docs though. Comments, bug reports, etc. appreciated before I announce to the relevant newsgroups. Joel McNamara joelm@eskimo.com - http://www.eskimo.com/~joelm for PGP key