Crypt::OpenSSL::X509 - Perl extension to OpenSSL's X509 API.
use Crypt::OpenSSL::X509; my $x509 = Crypt::OpenSSL::X509->new_from_file('cert.pem'); print $x509->pubkey() . "\n"; print $x509->subject() . "\n"; print $x509->hash() . "\n"; print $x509->email() . "\n"; print $x509->issuer() . "\n"; print $x509->issuer_hash() . "\n"; print $x509->notBefore() . "\n"; print $x509->notAfter() . "\n"; print $x509->modulus() . "\n"; print $x509->exponent() . "\n"; print $x509->fingerprint_md5() . "\n"; print $x509->fingerprint_sha256() . "\n"; print $x509->as_string() . "\n"; my $x509 = Crypt::OpenSSL::X509->new_from_string( $der_encoded_data, Crypt::OpenSSL::X509::FORMAT_ASN1 ); # given a time offset of $seconds, will the certificate be valid? if ($x509->checkend($seconds)) { # cert is expired at $seconds offset } else { # cert is ok at $seconds offset } my $exts = $x509->extensions_by_oid(); foreach my $oid (keys %$exts) { my $ext = $$exts{$oid}; print $oid, " ", $ext->object()->name(), ": ", $ext->value(), "\n"; }
This implement a large majority of OpenSSL's useful X509 API. The email() method supports both certificates where the subject is of the form: "... CN=Firstname lastname/emailAddress=user@domain", and also certificates where there is a X509v3 Extension of the form "X509v3 Subject Alternative Name: email=user@domain".
None by default.
On request:
FORMAT_UNDEF FORMAT_ASN1 FORMAT_TEXT FORMAT_PEM FORMAT_PKCS12 FORMAT_SMIME FORMAT_ENGINE FORMAT_IISSGC
Create a new X509 object.
Create a new X509 object from a string or file. FORMAT should be FORMAT_ASN1 or FORMAT_PEM.
FORMAT
FORMAT_ASN1
FORMAT_PEM
Subject name as a string.
Issuer name as a string.
Issuer name hash as a string.
Serial number as a string.
Alias for subject_hash
Subject name hash as a string.
notBefore time as a string.
notBefore
notAfter time as a string.
notAfter
Email addresses as string, if multiple addresses found, they are separated by a space (' ').
Certificate version as a string.
Signature algorithm name as a string.
Public key algorithm name as a string.
Name of the EC curve used in the public key.
Return a Name object for the subject or issuer name. Methods for handling Name objects are given below.
Return Boolean value if subject and issuer name are the same.
Return the certificate as a string in the specified format. FORMAT can be one of FORMAT_PEM (the default) or FORMAT_ASN1.
Return the modulus for an RSA public key as a string of hex digits. For DSA and EC return the public key. Other algorithms are not supported.
Return the length of the modulus as a number of bits.
Return the specified message digest for the certificate.
Given an offset in seconds, will the certificate be expired? Returns True if the certificate will be expired. False otherwise.
Return the RSA, DSA, or EC public key.
Return the number of extensions in the certificate.
Return the Extension specified by the integer INDEX. Methods for handling Extension objects are given below.
INDEX
Return a hash of Extensions indexed by OID or name.
Return true if the certificate has the extension specified by OID.
OID
Return a value indicating if the extension is critical or not. FIXME: the value is an ASN.1 BOOLEAN value.
Return the ObjectID of the extension. Methods for handling ObjectID objects are given below.
Return the value of the extension as an asn1parse(1) style hex dump.
Return a human-readable version of the extension as formatted by X509V3_EXT_print. Note that this will return an empty string for OIDs with unknown ASN.1 encodings.
Return the long name of the object as a string.
Return the numeric dot-separated form of the object identifier as a string.
Return a string representation of the Name
Return an array of Name_Entry objects. Methods for handling Name_Entry objects are given below.
Return true if a name has an entry of the specified TYPE. Depending on the function the TYPE may be in the short form (e.g. CN), long form (commonName) or OID (2.5.4.3). If LASTPOS is specified then the search is made from that index rather than from the start.
TYPE
CN
commonName
2.5.4.3
LASTPOS
Return the index of an entry of the specified TYPE in a name. Depending on the function the TYPE may be in the short form (e.g. CN), long form (commonName) or OID (2.5.4.3). If LASTPOS is specified then the search is made from that index rather than from the start.
These methods work similarly to get_index_by_* but return the Name_Entry rather than the index.
Return a string representation of the Name_Entry of the form typeName=Value. If LONG is 1, the long form of the type is used.
typeName=Value
LONG
Return a string representation of the type of the Name_Entry. If LONG is 1, the long form of the type is used.
Return a string representation of the value of the Name_Entry.
Return true if the Name_Entry value is of the specified type. The value of ASN1_TYPE should be as listed in OpenSSL's asn1.h.
ASN1_TYPE
asn1.h
OpenSSL(1), Crypt::OpenSSL::RSA, Crypt::OpenSSL::Bignum
Dan Sully
Florian Schlichting @fschlich, release 1.9.11
Timonthy Legge, release 1.9.10
Patrick Cernko, release 1.9.9
Shoichi Kaji, release 1.9.3 and 1.9.8
Neil Bowers, release 1.8.13
kmx, release 1.8.9
Sebastian Andrzej Siewior
David O'Callaghan, <david.ocallaghan@cs.tcd.ie>
Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Copyright 2004-2021 by Dan Sully
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Crypt::OpenSSL::X509, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Crypt::OpenSSL::X509
CPAN shell
perl -MCPAN -e shell install Crypt::OpenSSL::X509
For more information on module installation, please visit the detailed CPAN module installation guide.