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.\" ========================================================================
.\"
.IX Title "GnuPG::Key 3pm"
.TH GnuPG::Key 3pm "2014-03-13" "perl v5.20.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
GnuPG::Key \- GnuPG Key Object
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  # assumes a GnuPG::Interface object in $gnupg
\&  my @keys = $gnupg\->get_public_keys( \*(Aqftobin\*(Aq );
\&
\&  # now GnuPG::PublicKey objects are in @keys
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
GnuPG::Key objects are generally not instantiated on their
own, but rather used as a superclass of GnuPG::PublicKey,
GnuPG::SecretKey, or GnuPG::SubKey objects.
.SH "OBJECT METHODS"
.IX Header "OBJECT METHODS"
.SS "Initialization Methods"
.IX Subsection "Initialization Methods"
.ie n .IP "new( \fI\fI%initialization_args\fI\fR )" 4
.el .IP "new( \fI\f(CI%initialization_args\fI\fR )" 4
.IX Item "new( %initialization_args )"
This methods creates a new object.  The optional arguments are
initialization of data members.
.ie n .IP "hash_init( \fI\fI%args\fI\fR )." 4
.el .IP "hash_init( \fI\f(CI%args\fI\fR )." 4
.IX Item "hash_init( %args )."
.PD 0
.IP "short_hex_id" 4
.IX Item "short_hex_id"
.PD
This returns the commonly-used short, 8 character short hex id
of the key.
.ie n .IP "compare( \fI\fI$other\fI\fR, \fI\fI$deep\fI\fR )" 4
.el .IP "compare( \fI\f(CI$other\fI\fR, \fI\f(CI$deep\fI\fR )" 4
.IX Item "compare( $other, $deep )"
Returns non-zero only when this Key is identical to the other
GnuPG::Key.  If \f(CW$deep\fR is present and non-zero, the key's associated
signatures, revocations, and revokers will also be compared.
.SH "OBJECT DATA MEMBERS"
.IX Header "OBJECT DATA MEMBERS"
.IP "length" 4
.IX Item "length"
Number of bits in the key.
.IP "algo_num" 4
.IX Item "algo_num"
They algorithm number that the Key is used for.
.IP "usage_flags" 4
.IX Item "usage_flags"
The Key Usage flags associated with this key, represented as a string
of lower-case letters.  Possible values include: (a) authenticate, (c)
certify, (e) encrypt, and (s) sign.
.Sp
A key may have any combination of them in any order.  In addition to
these letters, the primary key has uppercase versions of the letters
to denote the _usable_ capabilities of the entire key, and a potential
letter 'D' to indicate a disabled key.
.Sp
See \*(L"key capabilities\*(R" \s-1DETAILS\s0 from the GnuPG sources for more
details.
.IP "hex_data" 4
.IX Item "hex_data"
The data of the key.  \s-1WARNING:\s0 this seems to have never been
instantiated, and should always be undef.
.IP "pubkey_data" 4
.IX Item "pubkey_data"
A list of Math::BigInt objects that correspond to the public key
material for the given key (this member is empty on secret keys).
.Sp
For \s-1DSA\s0 keys, the values are: prime (p), group order (q), group generator (g), y
.Sp
For \s-1RSA\s0 keys, the values are: modulus (n), exponent (e)
.Sp
For El Gamal keys, the values are: prime (p), group generator (g), y
.Sp
For more details, see: http://tools.ietf.org/html/rfc4880#page\-42
.IP "hex_id" 4
.IX Item "hex_id"
The long hex id of the key.  This is not the fingerprint nor
the short hex id, which is 8 hex characters.
.IP "creation_date_string" 4
.IX Item "creation_date_string"
.PD 0
.IP "expiration_date_string" 4
.IX Item "expiration_date_string"
.PD
Formatted date of the key's creation and expiration.  If the key has
no expiration, expiration_date_string will return undef.
.IP "creation_date" 4
.IX Item "creation_date"
.PD 0
.IP "expiration_date" 4
.IX Item "expiration_date"
.PD
Date of the key's creation and expiration, stored as the number of
seconds since midnight 1970\-01\-01 \s-1UTC. \s0 If the key has no expiration,
expiration_date will return undef.
.IP "fingerprint" 4
.IX Item "fingerprint"
A GnuPG::Fingerprint object.
.IP "signatures" 4
.IX Item "signatures"
A list of GnuPG::Signature objects embodying the signatures on this
key.  For subkeys, the signatures are usually subkey-binding
signatures.  For primary keys, the signatures are statements about the
key itself.
.IP "revocations" 4
.IX Item "revocations"
A list of revocations associated with this key, stored as
GnuPG::Signature objects (since revocations are a type of
certification as well).  Note that a revocation of a primary key has a
different semantic meaning than a revocation associated with a subkey.
.IP "revokers" 4
.IX Item "revokers"
A list of GnuPG::Revoker objects associated with this key, indicating
other keys which are allowed to revoke certifications made by this
key.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
GnuPG::Fingerprint,
GnuPG::Signature,
GnuPG::Revoker,