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Add limited SPKAC support

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This commit is contained in:
terrafrost 2012-12-19 00:21:55 -06:00
parent e4ccaef7bf
commit aa3da09747
1 changed files with 104 additions and 2 deletions
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106
phpseclib/File/X509.php
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@ -176,6 +176,7 @@ class File_X509 {
var $InvalidityDate;
var $CertificateIssuer;
var $HoldInstructionCode;
var $SignedPublicKeyAndChallenge;
/**#@-*/
/**
@ -1222,6 +1223,23 @@ class File_X509 {
$this->HoldInstructionCode = array('type' => FILE_ASN1_TYPE_OBJECT_IDENTIFIER);
$PublicKeyAndChallenge = array(
'type' => FILE_ASN1_TYPE_SEQUENCE,
'children' => array(
'spki' => $SubjectPublicKeyInfo,
'challenge' => array('type' => FILE_ASN1_TYPE_IA5_STRING)
)
);
$this->SignedPublicKeyAndChallenge = array(
'type' => FILE_ASN1_TYPE_SEQUENCE,
'children' => array(
'publicKeyAndChallenge' => $PublicKeyAndChallenge,
'signatureAlgorithm' => $AlgorithmIdentifier,
'signature' => array('type' => FILE_ASN1_TYPE_BIT_STRING)
)
);
// OIDs from RFC5280 and those RFCs mentioned in RFC5280#section-4.1.1.2
$this->oids = array(
'1.3.6.1.5.5.7' => 'id-pkix',
@ -2051,6 +2069,14 @@ class File_X509 {
substr(base64_decode($this->currentCert['signature']), 1),
$this->signatureSubject
);
case isset($this->currentCert['publicKeyAndChallenge']):
return $this->_validateSignature(
$this->currentCert['publicKeyAndChallenge']['spki']['algorithm']['algorithm'],
$this->currentCert['publicKeyAndChallenge']['spki']['subjectPublicKey'],
$this->currentCert['signatureAlgorithm']['algorithm'],
substr(base64_decode($this->currentCert['signature']), 1),
$this->signatureSubject
);
case isset($this->currentCert['tbsCertList']):
if (!empty($this->CAs)) {
for ($i = 0; $i < count($this->CAs); $i++) {
@ -2115,7 +2141,6 @@ class File_X509 {
case 'sha512WithRSAEncryption':
$rsa->setHash(preg_replace('#WithRSAEncryption$#', '', $signatureAlgorithm));
$rsa->setSignatureMode(CRYPT_RSA_SIGNATURE_PKCS1);
if (!@$rsa->verify($signatureSubject, $signature)) {
return false;
}
@ -2765,13 +2790,13 @@ class File_X509 {
if (is_array($csr) && isset($csr['certificationRequestInfo'])) {
unset($this->currentCert);
unset($this->currentKeyIdentifier);
unset($this->signatureSubject);
$this->dn = $csr['certificationRequestInfo']['subject'];
if (!isset($this->dn)) {
return false;
}
$this->currentCert = $csr;
unset($this->signatureSubject);
return $csr;
}
@ -2881,6 +2906,83 @@ class File_X509 {
}
}
/**
* Load a SPKAC CSR
*
* SPKAC's are produced by the HTML5 keygen element:
*
* https://developer.mozilla.org/en-US/docs/HTML/Element/keygen
*
* @param String $csr
* @access public
* @return Mixed
*/
function loadSPKAC($csr)
{
if (is_array($csr) && isset($csr['publicKeyAndChallenge'])) {
unset($this->currentCert);
unset($this->currentKeyIdentifier);
unset($this->signatureSubject);
$this->currentCert = $csr;
return $csr;
}
// see http://www.w3.org/html/wg/drafts/html/master/forms.html#signedpublickeyandchallenge
$asn1 = new File_ASN1();
$temp = preg_replace('#(?:^[^=]+=)|[\r\n\\\]#', '', $csr);
$temp = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $temp) ? base64_decode($temp) : false;
if ($temp != false) {
$csr = $temp;
}
$orig = $csr;
if ($csr === false) {
$this->currentCert = false;
return false;
}
$asn1->loadOIDs($this->oids);
$decoded = $asn1->decodeBER($csr);
if (empty($decoded)) {
$this->currentCert = false;
return false;
}
$csr = $asn1->asn1map($decoded[0], $this->SignedPublicKeyAndChallenge);
if (!isset($csr) || $csr === false) {
$this->currentCert = false;
return false;
}
$this->signatureSubject = substr($orig, $decoded[0]['content'][0]['start'], $decoded[0]['content'][0]['length']);
$algorithm = &$csr['publicKeyAndChallenge']['spki']['algorithm']['algorithm'];
$key = &$csr['publicKeyAndChallenge']['spki']['subjectPublicKey'];
$key = $this->_reformatKey($algorithm, $key);
switch ($algorithm) {
case 'rsaEncryption':
if (!class_exists('Crypt_RSA')) {
require_once('Crypt/RSA.php');
}
$this->publicKey = new Crypt_RSA();
$this->publicKey->loadKey($key);
$this->publicKey->setPublicKey();
break;
default:
$this->publicKey = NULL;
}
$this->currentKeyIdentifier = NULL;
$this->currentCert = $csr;
return $csr;
}
/**
* Load a Certificate Revocation List
*