On Thu, 11 Aug 2011 15:47, amarjeet.ya...@gs.com said: > We have requirement where we would like to check for encrypted file > its valid or not before decrypting it.
You mean whether it has been tampered with? You can't do that without decrypting it. GPG checks that the decrypted file is valid - usually by checking the signature but if it is not signed gpg checks the MDC (modification check code - a kind of checksum). Of course you could use a detached signature (or a hash digest of the file convoyed via a second channel) to detect modification before processing the file. However the entire file needs to be processed in any case. Thus if modifications are rare it would take longer to check the file first and then do the encryption which does yet another check. Salam-Shalom, Werner -- Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz. _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
