GPG --symmetric option and passphrases

Kevin Hilton kevhilton at
Mon Oct 6 16:54:20 CEST 2008

When using gpg with the --symmetric flag (as when symmetrically
encrypting a file with a passphrase), is the passphrase salted and
hashed?  Is so, how many times is it hashed, and what hashing
algorithm is used for this process?  Is this controlled by some
parameter in the gpg.conf file or command line flag?


Kevin Hilton

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