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IO::Socket::SSL::Utils(3) User Contributed Perl Documentation IO::Socket::SSL::Utils(3)
NAME
IO::Socket::SSL::Utils -- loading, storing, creating certificates and keys
SYNOPSIS
use IO::Socket::SSL::Utils;
my $cert = PEM_file2cert('cert.pem');
my $string = PEM_cert2string($cert);
CERT_free($cert);
my $key = KEY_create_rsa(2048);
PEM_string2file($key);
KEY_free($key);
DESCRIPTION
This module provides various utility functions to work with certificates and private keys,
shielding some of the complexity of the underlying Net::SSLeay and OpenSSL.
FUNCTIONS
o Functions converting between string or file and certificates and keys. They croak if
the operation cannot be completed.
PEM_file2cert(file) -> cert
PEM_cert2file(cert,file)
PEM_string2cert(string) -> cert
PEM_cert2string(cert) -> string
PEM_file2key(file) -> key
PEM_key2file(key,file)
PEM_string2key(string) -> key
PEM_key2string(key) -> string
o Functions for cleaning up. Each loaded or created cert and key must be freed to not
leak memory.
CERT_free(cert)
KEY_free(key)
o KEY_create_rsa(bits) -> key
Creates an RSA key pair, bits defaults to 1024.
o CERT_asHash(cert) -> hash
Extracts the information from the certificate into a hash:
serial The serial number
version Certificate version, usually 2 (x509v3)
subject Hash with the parts of the subject, e.g. commonName, countryName,
organizationName, stateOrProvinceName, localityName.
subjectAltNames
Array with list of alternative names. Each entry in the list is of
"[type,value]", where "type" can be OTHERNAME, EMAIL, DNS, X400, DIRNAME,
EDIPARTY, URI, IP or RID.
not_before, not_after
The time frame, where the certificate is valid, as time_t, e.g. can be
converted with localtime or similar functions.
o CERT_create(hash) -> cert
Creates a certificate based on the given hash. Additionally to the information
described in "CERT_asHash" the following keys can be given:
CA true|false
if true declare certificate as CA, defaults to false
key key use given key as key for certificate, otherwise a new one will be generated
issuer_cert cert
set issuer for new certificate
issuer_key key
sign new certificate with given key
If not all necessary information are given some will have usable defaults, e.g.
not_before defaults to the current time
not_after defaults to 365 days in the future
subject has a default pointing to IO::Socket::SSL
version defaults to 2 (x509v3)
serial will be a random number
AUTHOR
Steffen Ullrich
perl v5.16.3 2018-04-10 IO::Socket::SSL::Utils(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-19 14:27 @18.224.59.231 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)