10-20-2014
How To Find GPG Keys In Encrypted File With Out Decrypting it?
Hello All,
Is there a way to determine how many public keys are embedded or used to encrypt in a GPG file with out decrypting the actual encrypted file. I know i can see the keys & email id's used when we decrypt it, but curious to find a command if any to know with out decrypting the actual file as i am not able to find when i googled it. appreciate your help.
Thank you.
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LEARN ABOUT CENTOS
rpmsign
RPMSIGN(8) System Manager's Manual RPMSIGN(8)
NAME
rpmsign - RPM Package Signing
SYNOPSIS
rpm --addsign|--resign PACKAGE_FILE ...
rpm --delsign PACKAGE_FILE ...
DESCRIPTION
Both of the --addsign and --resign options generate and insert new signatures for each package PACKAGE_FILE given, replacing any existing
signatures. There are two options for historical reasons, there is no difference in behavior currently.
rpm --delsign PACKAGE_FILE ...
Delete all signatures from each package PACKAGE_FILE given.
USING GPG TO SIGN PACKAGES
In order to sign packages using GPG, rpm must be configured to run GPG and be able to find a key ring with the appropriate keys. By
default, rpm uses the same conventions as GPG to find key rings, namely the $GNUPGHOME environment variable. If your key rings are not
located where GPG expects them to be, you will need to configure the macro %_gpg_path to be the location of the GPG key rings to use. If
you want to be able to sign packages you create yourself, you also need to create your own public and secret key pair (see the GPG manual).
You will also need to configure the rpm macros
%_gpg_name
The name of the "user" whose key you wish to use to sign your packages.
For example, to be able to use GPG to sign packages as the user "John Doe <jdoe@foo.com>" from the key rings located in /etc/rpm/.gpg using
the executable /usr/bin/gpg you would include
%_gpg_path /etc/rpm/.gpg
%_gpg_name John Doe <jdoe@foo.com>
%__gpg /usr/bin/gpg
in a macro configuration file. Use /etc/rpm/macros for per-system configuration and ~/.rpmmacros for per-user configuration. Typically it's
sufficient to set just %_gpg_name.
SEE ALSO
popt(3),
rpm(8),
rpmdb(8),
rpmkeys(8),
rpm2cpio(8),
rpmbuild(8),
rpmspec(8),
rpmsign --help - as rpm supports customizing the options via popt aliases it's impossible to guarantee that what's described in the manual
matches what's available.
http://www.rpm.org/ <URL:http://www.rpm.org/>
AUTHORS
Marc Ewing <marc@redhat.com>
Jeff Johnson <jbj@redhat.com>
Erik Troan <ewt@redhat.com>
Panu Matilainen <pmatilai@redhat.com>
Red Hat, Inc RPMSIGN(8)