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https://github.com/danog/tgseclib.git
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ASN1: don't require octet / bit strings be base64-encoded
This commit is contained in:
terrafrost
parent
874ada8d93
commit
370fbec300
@ -368,8 +368,8 @@ class PKCS8 extends PKCS
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$temp = ASN1::decodeBER($decrypted['encryptionAlgorithm']['parameters']);
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extract(ASN1::asn1map($temp[0], Maps\PBEParameter::MAP));
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$iterationCount = (int) $iterationCount->toString();
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$cipher->setPassword($password, $kdf, $hash, Base64::decode($salt), $iterationCount);
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$key = $cipher->decrypt(Base64::decode($decrypted['encryptedData']));
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$cipher->setPassword($password, $kdf, $hash, $salt, $iterationCount);
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$key = $cipher->decrypt($decrypted['encryptedData']);
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$decoded = ASN1::decodeBER($key);
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if (empty($decoded)) {
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return false;
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@ -391,7 +391,7 @@ class PKCS8 extends PKCS
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extract($temp);
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if (!$cipher instanceof RC2) {
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$cipher->setIV(Base64::decode($encryptionScheme['parameters']['octetString']));
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$cipher->setIV($encryptionScheme['parameters']['octetString']);
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} else {
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$temp = ASN1::decodeBER($encryptionScheme['parameters']);
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extract(ASN1::asn1map($temp[0], Maps\RC2CBCParameter::MAP));
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@ -408,7 +408,7 @@ class PKCS8 extends PKCS
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break;
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//default: // should be >= 256
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}
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$cipher->setIV(Base64::decode($iv));
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$cipher->setIV($iv);
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$cipher->setKeyLength($effectiveKeyLength);
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}
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@ -425,14 +425,14 @@ class PKCS8 extends PKCS
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$password,
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'pbkdf2',
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$hash,
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Base64::decode($salt),
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$salt,
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(int) $iterationCount->toString()
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];
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if (isset($keyLength)) {
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$params[] = (int) $keyLength->toString();
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}
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call_user_func_array([$cipher, 'setPassword'], $params);
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$key = $cipher->decrypt(Base64::decode($decrypted['encryptedData']));
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$key = $cipher->decrypt($decrypted['encryptedData']);
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$decoded = ASN1::decodeBER($key);
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if (empty($decoded)) {
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return false;
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@ -462,11 +462,10 @@ class PKCS8 extends PKCS
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// bit strings wanting a non-zero amount of bits trimmed are not supported
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$public = ASN1::asn1map($decoded[0], Maps\PublicKeyInfo::MAP);
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if (is_array($public)) {
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$public['publicKey'] = base64_decode($public['publicKey']);
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if ($public['publicKey'][0] != "\0") {
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return false;
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}
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$public['publicKey'] = base64_encode(substr($public['publicKey'], 1));
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$public['publicKey'] = substr($public['publicKey'], 1);
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return $public;
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}
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@ -490,7 +489,7 @@ class PKCS8 extends PKCS
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$key = [
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'version' => 'v1',
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'privateKeyAlgorithm' => ['algorithm' => $algorithm], // parameters are not currently supported
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'privateKey' => Base64::encode($key)
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'privateKey' => $key
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];
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if (!empty($attr)) {
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$key['attributes'] = $attr;
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@ -507,18 +506,18 @@ class PKCS8 extends PKCS
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$iv = Random::string($crypto->getBlockLength() >> 3);
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$PBKDF2params = [
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'salt' => Base64::encode($salt),
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'salt' => $salt,
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'iterationCount' => $iterationCount,
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'prf' => ['algorithm' => self::$defaultPRF, 'parameters' => null]
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];
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$PBKDF2params = ASN1::encodeDER($PBKDF2params, Maps\PBKDF2params::MAP);
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if (!$crypto instanceof RC2) {
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$params = ['octetString' => Base64::encode($iv)];
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$params = ['octetString' => $iv];
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} else {
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$params = [
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'rc2ParametersVersion' => 58,
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'iv' => Base64::encode($iv)
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'iv' => $iv
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];
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$params = ASN1::encodeDER($params, Maps\RC2CBCParameter::MAP);
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$params = new ASN1\Element($params);
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@ -543,7 +542,7 @@ class PKCS8 extends PKCS
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$kdf = self::getPBES1KDF(self::$defaultEncryptionAlgorithm);
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$params = [
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'salt' => Base64::encode($salt),
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'salt' => $salt,
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'iterationCount' => $iterationCount
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];
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$params = ASN1::encodeDER($params, Maps\PBEParameter::MAP);
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@ -556,7 +555,7 @@ class PKCS8 extends PKCS
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'algorithm' => self::$defaultEncryptionAlgorithm,
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'parameters' => new ASN1\Element($params)
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],
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'encryptedData' => Base64::encode($key)
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'encryptedData' => $key
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];
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$key = ASN1::encodeDER($key, Maps\EncryptedPrivateKeyInfo::MAP);
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@ -587,7 +586,7 @@ class PKCS8 extends PKCS
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'algorithm' => $algorithm,
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'parameters' => null // parameters are not currently supported
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],
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'publicKey' => Base64::encode("\0" . $key)
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'publicKey' => "\0" . $key
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];
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$key = ASN1::encodeDER($key, Maps\PublicKeyInfo::MAP);
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@ -2051,7 +2051,7 @@ class RSA
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$hash;
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$hash = new Hash($hash);
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$em = $hash->hash($m);
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$em2 = Base64::decode($decoded['digest']);
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$em2 = $decoded['digest'];
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return self::_equals($em, $em2);
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}
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@ -793,7 +793,7 @@ class ASN1
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return $values;
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}
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case self::TYPE_OCTET_STRING:
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return Base64::encode($decoded['content']);
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return $decoded['content'];
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case self::TYPE_NULL:
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return '';
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case self::TYPE_BOOLEAN:
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@ -1051,7 +1051,7 @@ class ASN1
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the number of unused bits in the final subsequent octet. The number shall be in the range zero to seven.
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-- http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#page=16 */
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$value = Base64::decode($source);
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$value = $source;
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break;
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case self::TYPE_OBJECT_IDENTIFIER:
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if (!preg_match('#(?:\d+\.)+#', $source)) {
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@ -583,7 +583,6 @@ class X509
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for ($i = 0; $i < count($extensions); $i++) {
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$id = $extensions[$i]['extnId'];
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$value = &$extensions[$i]['extnValue'];
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$value = Base64::decode($value);
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$decoded = ASN1::decodeBER($value);
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/* [extnValue] contains the DER encoding of an ASN.1 value
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corresponding to the extension type identified by extnID */
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@ -609,8 +608,6 @@ class X509
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}
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}
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}
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} else {
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$value = Base64::encode($value);
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}
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}
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}
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@ -674,8 +671,7 @@ class X509
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unset($extensions[$i]);
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}
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} else {
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$temp = ASN1::encodeDER($value, $map, array('iPAddress' => array($this, '_encodeIP')));
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$value = Base64::encode($temp);
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$value = ASN1::encodeDER($value, $map, array('iPAddress' => array($this, '_encodeIP')));
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}
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}
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}
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@ -713,7 +709,7 @@ class X509
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$this->_mapInExtensions($values, $j);
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}
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} elseif ($map) {
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$values[$j] = Base64::encode($value);
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$values[$j] = $value;
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}
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}
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}
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@ -1149,7 +1145,7 @@ class X509
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$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($this->currentCert['signature']), 1),
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substr($this->currentCert['signature'], 1),
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$this->signatureSubject
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);
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case isset($this->currentCert['certificationRequestInfo']):
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@ -1157,7 +1153,7 @@ class X509
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$this->currentCert['certificationRequestInfo']['subjectPKInfo']['algorithm']['algorithm'],
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$this->currentCert['certificationRequestInfo']['subjectPKInfo']['subjectPublicKey'],
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$this->currentCert['signatureAlgorithm']['algorithm'],
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substr(Base64::decode($this->currentCert['signature']), 1),
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substr($this->currentCert['signature'], 1),
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$this->signatureSubject
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);
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case isset($this->currentCert['publicKeyAndChallenge']):
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@ -1165,7 +1161,7 @@ class X509
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$this->currentCert['publicKeyAndChallenge']['spki']['algorithm']['algorithm'],
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$this->currentCert['publicKeyAndChallenge']['spki']['subjectPublicKey'],
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$this->currentCert['signatureAlgorithm']['algorithm'],
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substr(Base64::decode($this->currentCert['signature']), 1),
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substr($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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@ -1193,7 +1189,7 @@ class X509
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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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substr($this->currentCert['signature'], 1),
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$this->signatureSubject
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);
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default:
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@ -1266,7 +1262,7 @@ class X509
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// subjectPublicKey is stored as a bit string in X.509 certs. the first byte of a bit string represents how many bits
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// in the last byte should be ignored. the following only supports non-zero stuff but as none of the X.509 certs Firefox
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// uses as a cert authority actually use a non-zero bit I think it's safe to assume that none do.
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chunk_split(Base64::encode(substr(Base64::decode($key), 1)), 64) .
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chunk_split(Base64::encode(substr($key, 1)), 64) .
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'-----END RSA PUBLIC KEY-----';
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default:
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return $key;
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@ -1284,7 +1280,7 @@ class X509
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*/
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function _decodeIP($ip)
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{
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return inet_ntop(Base64::decode($ip));
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return inet_ntop($ip);
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}
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/**
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@ -1298,7 +1294,7 @@ class X509
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*/
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function _encodeIP($ip)
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{
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return Base64::encode(inet_pton($ip));
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return inet_pton($ip);
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}
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/**
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@ -2464,7 +2460,7 @@ class X509
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);
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if (!isset($subject->currentKeyIdentifier)) {
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$this->setExtension('id-ce-subjectKeyIdentifier', Base64::encode($this->computeKeyIdentifier($this->currentCert)), false, false);
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$this->setExtension('id-ce-subjectKeyIdentifier', $this->computeKeyIdentifier($this->currentCert), false, false);
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}
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}
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@ -2759,7 +2755,7 @@ class X509
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case 'sha512WithRSAEncryption':
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$key->setHash(preg_replace('#WithRSAEncryption$#', '', $signatureAlgorithm));
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$this->currentCert['signature'] = Base64::encode("\0" . $key->sign($this->signatureSubject, RSA::PADDING_PKCS1));
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$this->currentCert['signature'] = "\0" . $key->sign($this->signatureSubject, RSA::PADDING_PKCS1);
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return $this->currentCert;
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default:
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throw new UnsupportedAlgorithmException('Signature algorithm unsupported');
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@ -3339,7 +3335,7 @@ class X509
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if (empty($value)) {
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unset($this->currentKeyIdentifier);
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} else {
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$this->currentKeyIdentifier = Base64::encode($value);
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$this->currentKeyIdentifier = $value;
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}
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}
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@ -3386,7 +3382,6 @@ class X509
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if (empty($raw)) {
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return false;
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}
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$raw = Base64::decode($raw);
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// If the key is private, compute identifier from its corresponding public key.
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$key = new RSA();
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if (!$key->load($raw)) {
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@ -3439,7 +3434,7 @@ class X509
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if ($this->publicKey instanceof RSA) {
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// the following two return statements do the same thing. i dunno.. i just prefer the later for some reason.
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// the former is a good example of how to do fuzzing on the public key
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//return new Element(Base64::decode(preg_replace('#-.+-|[\r\n]#', '', $this->publicKey->getPublicKey())));
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//return new Element(preg_replace('#-.+-|[\r\n]#', '', $this->publicKey->getPublicKey()));
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return array(
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'algorithm' => array('algorithm' => 'rsaEncryption'),
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'subjectPublicKey' => $this->publicKey->getPublicKey('PKCS1')
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@ -107,7 +107,7 @@ k6m17mi63YW/+iPCGOWZ2qXmY5HPEyyF2L4L4IDryFJ+8xLyw3pH9/yp5aHZDtp6
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$cert = $x509->loadX509($test);
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$this->assertEquals('MDUwDgYIKoZIhvcNAwICAgCAMA4GCCqGSIb3DQMEAgIAgDAHBgUrDgMCBzAKBggqhkiG9w0DBw==', $cert['tbsCertificate']['extensions'][8]['extnValue']);
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$this->assertEquals(base64_decode('MDUwDgYIKoZIhvcNAwICAgCAMA4GCCqGSIb3DQMEAgIAgDAHBgUrDgMCBzAKBggqhkiG9w0DBw=='), $cert['tbsCertificate']['extensions'][8]['extnValue']);
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}
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public function testSaveUnsupportedExtension()
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