mirror of
https://github.com/phpseclib/phpseclib.git
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X509: implement CRLs.
This commit is contained in:
monnerat
parent
6da490d00a
commit
711d44f0e5
@ -100,6 +100,12 @@ class File_X509 {
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var $netscape_cert_type;
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var $netscape_comment;
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var $CRLNumber;
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var $CRLReason;
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var $IssuingDistributionPoint;
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var $InvalidityDate;
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var $CertificateIssuer;
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/**#@-*/
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/**
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@ -110,6 +116,14 @@ class File_X509 {
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*/
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var $CertificationRequest;
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/**
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* ASN.1 syntax for Certificate Revocation Lists (RFC5280)
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*
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* @var Array
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* @access private
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*/
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var $CertificateList;
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/**
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* Distinguished Name
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*
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@ -1016,6 +1030,119 @@ class File_X509 {
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)
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);
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$RevokedCertificate = array(
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'type' => FILE_ASN1_TYPE_SEQUENCE,
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'children' => array(
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'userCertificate' => $CertificateSerialNumber,
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'revocationDate' => $Time,
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'crlEntryExtensions' => array(
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'optional' => true
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) + $Extensions
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)
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);
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$TBSCertList = array(
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'type' => FILE_ASN1_TYPE_SEQUENCE,
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'children' => array(
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'version' => array(
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'optional' => true,
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'default' => 'v1'
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) + $Version,
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'signature' => $AlgorithmIdentifier,
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'issuer' => $Name,
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'thisUpdate' => $Time,
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'nextUpdate' => array(
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'optional' => true
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) + $Time,
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'revokedCertificates' => array(
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'type' => FILE_ASN1_TYPE_SEQUENCE,
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'optional' => true,
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'min' => 0,
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'max' => -1,
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'children' => $RevokedCertificate
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),
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'crlExtensions' => array(
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'constant' => 0,
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'optional' => true,
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'explicit' => true
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) + $Extensions
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)
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);
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$this->CertificateList = array(
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'type' => FILE_ASN1_TYPE_SEQUENCE,
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'children' => array(
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'tbsCertList' => $TBSCertList,
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'signatureAlgorithm' => $AlgorithmIdentifier,
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'signature' => array('type' => FILE_ASN1_TYPE_BIT_STRING)
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)
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);
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$this->CRLNumber = array('type' => FILE_ASN1_TYPE_INTEGER);
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$this->CRLReason = array('type' => FILE_ASN1_TYPE_ENUMERATED,
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'mapping' => array(
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'unspecified',
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'keyCompromise',
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'cACompromise',
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'affiliationChanged',
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'superseded',
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'cessationOfOperation',
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'certificateHold',
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// Value 7 is not used.
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8 => 'removeFromCRL',
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'privilegeWithdrawn',
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'aACompromise'
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)
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);
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$this->IssuingDistributionPoint = array('type' => FILE_ASN1_TYPE_SEQUENCE,
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'children' => array(
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'distributionPoint' => array(
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'constant' => 0,
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'optional' => true,
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'explicit' => true
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) + $DistributionPointName,
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'onlyContainsUserCerts' => array(
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'type' => FILE_ASN1_TYPE_BOOLEAN,
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'constant' => 1,
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'optional' => true,
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'default' => false,
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'implicit' => true
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),
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'onlyContainsCACerts' => array(
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'type' => FILE_ASN1_TYPE_BOOLEAN,
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'constant' => 2,
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'optional' => true,
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'default' => false,
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'implicit' => true
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),
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'onlySomeReasons' => array(
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'constant' => 3,
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'optional' => true,
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'implicit' => true
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) + $ReasonFlags,
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'indirectCRL' => array(
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'type' => FILE_ASN1_TYPE_BOOLEAN,
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'constant' => 4,
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'optional' => true,
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'default' => false,
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'implicit' => true
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),
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'onlyContainsAttributeCerts' => array(
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'type' => FILE_ASN1_TYPE_BOOLEAN,
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'constant' => 5,
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'optional' => true,
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'default' => false,
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'implicit' => true
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)
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)
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);
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$this->InvalidityDate = array('type' => FILE_ASN1_TYPE_GENERALIZED_TIME);
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$this->CertificateIssuer = $GeneralNames;
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// OIDs from RFC5280 and those RFCs mentioned in RFC5280#section-4.1.1.2
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$this->oids = array(
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'1.3.6.1.5.5.7' => 'id-pkix',
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@ -1465,6 +1592,22 @@ class File_X509 {
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// http://www.maithean.com/docs/set_bk3.pdf
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case '2.23.42.7.0': // id-set-hashedRootKey
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return true;
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// CRL extensions.
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case 'id-ce-cRLNumber':
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return $this->CRLNumber;
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case 'id-ce-deltaCRLIndicator':
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return $this->CRLNumber;
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case 'id-ce-issuingDistributionPoint':
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return $this->IssuingDistributionPoint;
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case 'id-ce-freshestCRL':
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return $this->CRLDistributionPoints;
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case 'id-ce-cRLReasons':
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return $this->CRLReason;
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case 'id-ce-invalidityDate':
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return $this->InvalidityDate;
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case 'id-ce-certificateIssuer':
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return $this->CertificateIssuer;
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}
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return false;
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@ -1617,7 +1760,7 @@ class File_X509 {
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/**
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* Validate a signature
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*
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* Works on both X.509 certs and CSR's.
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* Works on X.509 certs, CSR's and CRL's.
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* Returns 1 if the signature is verified, 0 if it is not correct or -1 on error
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*
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* To know if a signature is valid one should do validateSignature() === 1
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@ -1690,6 +1833,32 @@ class File_X509 {
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substr(base64_decode($this->currentCert['signature']), 1),
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$this->signatureSubject
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);
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case isset($this->currentCert['tbsCertList']):
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if (!empty($this->CAs)) {
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for ($i = 0; $i < count($this->CAs); $i++) {
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$ca = $this->CAs[$i];
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if ($this->currentCert['tbsCertList']['issuer'] === $ca['tbsCertificate']['subject']) {
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$authorityKey = $this->getCRLExtension('id-ce-authorityKeyIdentifier');
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$subjectKeyID = $this->getExtension('id-ce-subjectKeyIdentifier', $ca);
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switch (true) {
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case !is_array($authorityKey):
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case is_array($authorityKey) && isset($authorityKey['keyIdentifier']) && $authorityKey['keyIdentifier'] === $subjectKeyID:
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$signingCert = $ca; // working cert
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break 2;
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}
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}
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}
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}
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if (!isset($signingCert)) {
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return 0;
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}
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return $this->_validateSignature(
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$signingCert['tbsCertificate']['subjectPublicKeyInfo']['algorithm']['algorithm'],
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$signingCert['tbsCertificate']['subjectPublicKeyInfo']['subjectPublicKey'],
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$this->currentCert['signatureAlgorithm']['algorithm'],
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substr(base64_decode($this->currentCert['signature']), 1),
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$this->signatureSubject
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);
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default:
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return 0;
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}
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@ -2264,6 +2433,103 @@ class File_X509 {
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return "-----BEGIN CERTIFICATE REQUEST-----\r\n" . chunk_split(base64_encode($csr)) . '-----END CERTIFICATE REQUEST-----';
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}
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/**
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* Load a Certificate Revocation List
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*
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* @param String $crl
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* @access public
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* @return Mixed
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*/
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function loadCRL($crl)
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{
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$asn1 = new File_ASN1();
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$crl = preg_replace('#^(?:[^-].+[\r\n]+)+|-.+-|[\r\n]#', '', $crl);
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$orig = $crl = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $crl) ? base64_decode($crl) : false;
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if ($crl === false) {
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$this->currentCert = false;
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return false;
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}
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$asn1->loadOIDs($this->oids);
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$decoded = $asn1->decodeBER($crl);
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if (empty($decoded)) {
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$this->currentCert = false;
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return false;
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}
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$crl = $asn1->asn1map($decoded[0], $this->CertificateList);
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if (!isset($crl) || $crl === false) {
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$this->currentCert = false;
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return false;
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}
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$this->signatureSubject = substr($orig, $decoded[0]['content'][0]['start'], $decoded[0]['content'][0]['length']);
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$this->_mapInExtensions($crl, 'tbsCertList/crlExtensions', $asn1);
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$rclist = &$this->_subArray($crl,'tbsCertList/revokedCertificates');
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if (is_array($rclist)) {
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foreach ($rclist as $i => $extension) {
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$this->_mapInExtensions($rclist, "$i/crlEntryExtensions", $asn1);
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}
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}
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$this->keyIdentifier = NULL;
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$this->currentCert = $crl;
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return $crl;
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}
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/**
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* Save Certificate Revocation List.
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*
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* @param Array $crl
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* @access public
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* @return String
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*/
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function saveCRL($crl)
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{
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if (!is_array($crl) || !isset($crl['tbsCertList'])) {
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return false;
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}
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$asn1 = new File_ASN1();
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$asn1->loadOIDs($this->oids);
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$filters = array();
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$filters['tbsCertList']['issuer']['rdnSequence']['value'] =
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$filters['tbsCertList']['signature']['parameters'] =
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$filters['signatureAlgorithm']['parameters'] =
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array('type' => FILE_ASN1_TYPE_UTF8_STRING);
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if (empty($crl['tbsCertList']['signature']['parameters'])) {
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$filters['tbsCertList']['signature']['parameters'] =
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array('type' => FILE_ASN1_TYPE_NULL);
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}
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if (empty($crl['signatureAlgorithm']['parameters'])) {
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$filters['signatureAlgorithm']['parameters'] =
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array('type' => FILE_ASN1_TYPE_NULL);
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}
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$asn1->loadFilters($filters);
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$this->_mapOutExtensions($crl, 'tbsCertList/crlExtensions', $asn1);
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$rclist = &$this->_subArray($crl,'tbsCertList/revokedCertificates');
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if (is_array($rclist)) {
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foreach ($rclist as $i => $extension) {
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$this->_mapOutExtensions($rclist, "$i/crlEntryExtensions", $asn1);
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}
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}
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$crl = $asn1->encodeDER($crl, $this->CertificateList);
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return "-----BEGIN X509 CRL-----\r\n" . chunk_split(base64_encode($crl)) . '-----END X509 CRL-----';
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}
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/**
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* Sign an X.509 certificate
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*
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@ -2316,6 +2582,8 @@ class File_X509 {
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if (isset($subject->domains)) {
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$this->removeExtension('id-ce-subjectAltName');
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}
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} else if (isset($subject->currentCert) && is_array($subject->currentCert) && isset($subject->currentCert['tbsCertList'])) {
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return false;
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} else {
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if (!isset($subject->publicKey)) {
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return false;
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@ -2465,6 +2733,136 @@ class File_X509 {
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return $result;
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}
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/**
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* Sign a CRL
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*
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* $issuer's private key needs to be loaded.
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*
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* @param File_X509 $issuer
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* @param File_X509 $crl
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* @param String $signatureAlgorithm optional
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* @access public
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* @return Mixed
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*/
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function signCRL($issuer, $crl, $signatureAlgorithm = 'sha1WithRSAEncryption')
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{
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if (!is_object($issuer->privateKey) || empty($issuer->dn)) {
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return false;
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}
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$currentCert = isset($this->currentCert) ? $this->currentCert : NULL;
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$signatureSubject = isset($this->signatureSubject) ? $this->signatureSubject : NULL;
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$thisUpdate = !empty($this->startDate) ? $this->startDate : @date('M j H:i:s Y T');
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if (isset($crl->currentCert) && is_array($crl->currentCert) && isset($crl->currentCert['tbsCertList'])) {
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$this->currentCert = $crl->currentCert;
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$this->currentCert['tbsCertList']['signature']['algorithm'] = $signatureAlgorithm;
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$this->currentCert['signatureAlgorithm']['algorithm'] = $signatureAlgorithm;
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} else {
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$this->currentCert = array(
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'tbsCertList' =>
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array(
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'version' => 'v2',
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'signature' => array('algorithm' => $signatureAlgorithm),
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'issuer' => false, // this is going to be overwritten later
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'thisUpdate' => array('generalTime' => $thisUpdate) // $this->setStartDate()
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),
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'signatureAlgorithm' => array('algorithm' => $signatureAlgorithm),
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'signature' => false // this is going to be overwritten later
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);
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}
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$tbsCertList = &$this->currentCert['tbsCertList'];
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$tbsCertList['issuer'] = $issuer->dn;
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$tbsCertList['thisUpdate'] = array('generalTime' => $thisUpdate);
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if (!empty($this->endDate)) {
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$tbsCertList['nextUpdate'] = array('generalTime' => $this->endDate); // $this->setEndDate()
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}
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else {
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unset($tbsCertList['nextUpdate']);
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}
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if (!empty($this->serialNumber)) {
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$crlNumber = $this->serialNumber;
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}
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else {
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$crlNumber = $this->getCRLExtension('id-ce-cRLNumber');
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$crlNumber = $crlNumber !== false ? $crlNumber->add(new Math_BigInteger(1)) : NULL;
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}
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$this->removeCRLExtension('id-ce-authorityKeyIdentifier');
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$this->removeCRLExtension('id-ce-issuerAltName');
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// Be sure version >= v2 if some extension found.
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$version = isset($tbsCertList['version']) ? $tbsCertList['version'] : 0;
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if (!$version) {
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if (!empty($tbsCertList['crlExtensions'])) {
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$version = 1; // v2.
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}
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elseif (!empty($tbsCertList['revokedCertificates'])) {
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foreach ($tbsCertList['revokedCertificates'] as $cert) {
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if (!empty($cert['crlEntryExtensions'])) {
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$version = 1; // v2.
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}
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}
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}
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if ($version) {
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$tbsCertList['version'] = $version;
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}
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}
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// Store additional extensions.
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if (!empty($tbsCertList['version'])) { // At least v2.
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if (!empty($crlNumber)) {
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$this->setCRLExtension('id-ce-cRLNumber', $crlNumber);
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}
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if (isset($issuer->keyIdentifier)) {
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$this->setCRLExtension('id-ce-authorityKeyIdentifier', array(
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//'authorityCertIssuer' => array(
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// array(
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// 'directoryName' => $issuer->dn
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// )
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//),
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'keyIdentifier' => $issuer->keyIdentifier
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)
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);
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//$extensions = &$tbsCertList['crlExtensions'];
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//if (isset($issuer->serialNumber)) {
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// $extensions[count($extensions) - 1]['authorityCertSerialNumber'] = $issuer->serialNumber;
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//}
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//unset($extensions);
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}
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$issuerAltName = $this->getExtension('id-ce-subjectAltName', $issuer->currentCert);
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if ($issuerAltName !== false) {
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$this->setCRLExtension('id-ce-issuerAltName', $issuerAltName);
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}
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}
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if (empty($tbsCertList['revokedCertificates'])) {
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unset($tbsCertList['revokedCertificates']);
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}
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unset($tbsCertList);
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// resync $this->signatureSubject
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// save $tbsCertList in case there are any File_ASN1_Element objects in it
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$tbsCertList = $this->currentCert['tbsCertList'];
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$this->loadCRL($this->saveCRL($this->currentCert));
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$result = $this->_sign($issuer->privateKey, $signatureAlgorithm);
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$result['tbsCertList'] = $tbsCertList;
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$this->currentCert = $currentCert;
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$this->signatureSubject = $signatureSubject;
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return $result;
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}
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/**
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* X.509 certificate signing helper function.
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*
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@ -2619,6 +3017,18 @@ class File_X509 {
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return $result;
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}
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/**
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* Remove a CRL Extension
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*
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* @param String $id
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* @access public
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* @return Boolean
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*/
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function removeCRLExtension($id)
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{
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return $this->removeExtension($id, 'tbsCertList/crlExtensions');
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}
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/**
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* Get an Extension
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*
|
||||
@ -2651,6 +3061,21 @@ class File_X509 {
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a CRL Extension
|
||||
*
|
||||
* Returns the extension if it exists and false if not
|
||||
*
|
||||
* @param String $id
|
||||
* @param Array $crl optional
|
||||
* @access public
|
||||
* @return Mixed
|
||||
*/
|
||||
function getCRLExtension($id, $crl = NULL)
|
||||
{
|
||||
return $this->getExtension($id, $crl, 'tbsCertList/crlExtensions');
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of all extensions in use
|
||||
*
|
||||
@ -2677,6 +3102,18 @@ class File_X509 {
|
||||
return $extensions;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of all CRL extensions in use
|
||||
*
|
||||
* @param array $crl optional
|
||||
* @access public
|
||||
* @return Array
|
||||
*/
|
||||
function getCRLExtensions($crl = NULL)
|
||||
{
|
||||
return $this->getExtensions($crl, 'tbsCertList/crlExtensions');
|
||||
}
|
||||
|
||||
/**
|
||||
* Set an Extension
|
||||
*
|
||||
@ -2713,6 +3150,21 @@ class File_X509 {
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set a CRL Extension
|
||||
*
|
||||
* @param String $id
|
||||
* @param Mixed $value
|
||||
* @param Boolean $critical optional
|
||||
* @param Boolean $replace optional
|
||||
* @access public
|
||||
* @return Boolean
|
||||
*/
|
||||
function setCRLExtension($id, $value, $critical = false, $replace = true)
|
||||
{
|
||||
return $this->setExtension($id, $value, $critical, $replace, 'tbsCertList/crlExtensions');
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the authority key identifier
|
||||
*
|
||||
@ -2768,4 +3220,220 @@ class File_X509 {
|
||||
$this->removeDNProp('id-at-commonName');
|
||||
$this->setDNProp('id-at-commonName', $this->domains[0]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the index of a revoked certificate.
|
||||
*
|
||||
* @param array $rclist
|
||||
* @param String $serial
|
||||
* @param Boolean $create optional
|
||||
* @access private
|
||||
* @return Integer or false
|
||||
*/
|
||||
|
||||
function _revokedCertificate(&$rclist, $serial, $create = false)
|
||||
{
|
||||
$serial = new Math_BigInteger($serial);
|
||||
|
||||
foreach ($rclist as $i => $rc) {
|
||||
if (!($serial->compare($rc['userCertificate']))) {
|
||||
return $i;
|
||||
}
|
||||
}
|
||||
|
||||
if (!$create) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$i = count($rclist);
|
||||
$rclist[] = array('userCertificate' => $serial,
|
||||
'revocationDate' => array('generalTime' => @date('M j H:i:s Y T')));
|
||||
return $i;
|
||||
}
|
||||
|
||||
/**
|
||||
* Revoke a certificate.
|
||||
*
|
||||
* @param String $serial
|
||||
* @param String $date optional
|
||||
* @access public
|
||||
* @return Boolean
|
||||
*/
|
||||
function revoke($serial, $date = NULL)
|
||||
{
|
||||
if (isset($this->currentCert['tbsCertList'])) {
|
||||
if (is_array($rclist = &$this->_subArray($this->currentCert, 'tbsCertList/revokedCertificates', true))) {
|
||||
if ($this->_revokedCertificate($rclist, $serial) === false) { // If not yet revoked
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial, true)) !== false) {
|
||||
|
||||
if (!empty($date)) {
|
||||
$rclist[$i]['revocationDate'] = array('generalTime' => $date);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Unrevoke a certificate.
|
||||
*
|
||||
* @param String $serial
|
||||
* @access public
|
||||
* @return Boolean
|
||||
*/
|
||||
function unrevoke($serial)
|
||||
{
|
||||
if (is_array($rclist = &$this->_subArray($this->currentCert, 'tbsCertList/revokedCertificates'))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial)) !== false) {
|
||||
unset($rclist[$i]);
|
||||
$rclist = array_values($rclist);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a revoked certificate.
|
||||
*
|
||||
* @param String $serial
|
||||
* @access public
|
||||
* @return Mixed
|
||||
*/
|
||||
function getRevoked($serial)
|
||||
{
|
||||
if (is_array($rclist = $this->_subArray($this->currentCert, 'tbsCertList/revokedCertificates'))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial)) !== false) {
|
||||
return $rclist[$i];
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* List revoked certificates
|
||||
*
|
||||
* @param array $crl optional
|
||||
* @access public
|
||||
* @return array
|
||||
*/
|
||||
function listRevoked($crl = NULL)
|
||||
{
|
||||
if (!isset($crl)) {
|
||||
$crl = $this->currentCert;
|
||||
}
|
||||
|
||||
if (!isset($crl['tbsCertList'])) {
|
||||
return false;
|
||||
}
|
||||
|
||||
$result = array();
|
||||
|
||||
if (!is_array($rclist = $this->_subArray($crl, 'tbsCertList/revokedCertificates'))) {
|
||||
foreach ($rclist as $rc) {
|
||||
$result[] = $rc['userCertificate']->toString();
|
||||
}
|
||||
}
|
||||
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove a Revoked Certificate Extension
|
||||
*
|
||||
* @param String $serial
|
||||
* @param String $id
|
||||
* @access public
|
||||
* @return Boolean
|
||||
*/
|
||||
function removeRevokedCertificateExtension($serial, $id)
|
||||
{
|
||||
if (is_array($rclist = &$this->_subArray($this->currentCert, 'tbsCertList/revokedCertificates'))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial)) !== false) {
|
||||
return $this->removeExtension($id, "tbsCertList/revokedCertificates/$i/crlEntryExtensions");
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get a Revoked Certificate Extension
|
||||
*
|
||||
* Returns the extension if it exists and false if not
|
||||
*
|
||||
* @param String $serial
|
||||
* @param String $id
|
||||
* @param Array $crl optional
|
||||
* @access public
|
||||
* @return Mixed
|
||||
*/
|
||||
function getRevokedCertificateExtension($serial, $id, $crl = NULL)
|
||||
{
|
||||
if (!isset($crl)) {
|
||||
$crl = $this->currentCert;
|
||||
}
|
||||
|
||||
if (is_array($rclist = $this->_subArray($crl, 'tbsCertList/revokedCertificates'))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial)) !== false) {
|
||||
return $this->getExtension($id, $crl, "tbsCertList/revokedCertificates/$i/crlEntryExtensions");
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a list of all extensions in use for a given revoked certificate
|
||||
*
|
||||
* @param String $serial
|
||||
* @param array $crl optional
|
||||
* @access public
|
||||
* @return Array
|
||||
*/
|
||||
function getRevokedCertificateExtensions($serial, $crl = NULL)
|
||||
{
|
||||
if (!isset($crl)) {
|
||||
$crl = $this->currentCert;
|
||||
}
|
||||
|
||||
if (is_array($rclist = $this->_subArray($crl, 'tbsCertList/revokedCertificates'))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial)) !== false) {
|
||||
return $this->getExtensions($crl, "tbsCertList/revokedCertificates/$i/crlEntryExtensions");
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set a Revoked Certificate Extension
|
||||
*
|
||||
* @param String $serial
|
||||
* @param String $id
|
||||
* @param Mixed $value
|
||||
* @param Boolean $critical optional
|
||||
* @param Boolean $replace optional
|
||||
* @access public
|
||||
* @return Boolean
|
||||
*/
|
||||
function setRevokedCertificateExtension($serial, $id, $value, $critical = false, $replace = true)
|
||||
{
|
||||
if (isset($this->currentCert['tbsCertList'])) {
|
||||
if (is_array($rclist = &$this->_subArray($this->currentCert, 'tbsCertList/revokedCertificates', true))) {
|
||||
if (($i = $this->_revokedCertificate($rclist, $serial, true)) !== false) {
|
||||
return $this->setExtension($id, $value, $critical, $replace, "tbsCertList/revokedCertificates/$i/crlEntryExtensions");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user