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token fixes; code looks incomplete anyway

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This commit is contained in:
David Goodwin
2018-06-18 21:36:25 +01:00
parent 97c48a0fc9
commit aa38d0090d
1 changed files with 52 additions and 45 deletions
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97
scripts/snippets/dovecot_crypt.php
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@ -1,79 +1,83 @@
<?php <?php
define('SHA1_RESULTLEN', (160/8)); define('SHA1_RESULTLEN', (160/8));
define('SHA256_RESULTLEN', (256 / 8)); define('SHA256_RESULTLEN', (256 / 8));
define('CRAM_MD5_CONTEXTLEN', 32); define('CRAM_MD5_CONTEXTLEN', 32);
define('MD5_RESULTLEN', (128/8)); define('MD5_RESULTLEN', (128/8));
define('MD4_RESULTLEN', (128/8)); define('MD4_RESULTLEN', (128/8));
define('LM_HASH_SIZE', 16); define('LM_HASH_SIZE', 16);
define('NTLMSSP_HASH_SIZE', 16); define('NTLMSSP_HASH_SIZE', 16);
class DovecotCrypt extends Crypt { class DovecotCrypt extends Crypt {
private $errormsg = [];
private $salt_chars = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; private $salt_chars = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
/** /**
* Array * Array
* Crypt type and which function handles it. * Crypt type and which function handles it.
* array('alogrithm' => array('encoding', 'length', 'verify', 'function')) * array('alogrithm' => array('encoding', 'length', 'verify', 'function'))
*/ */
public $password_schemes = array( public $password_schemes = array(
'CRYPT' => array('NONE', 0, 'crypt_verify', 'crypt_generate'), 'CRYPT' => array('NONE', 0, 'crypt_verify', 'crypt_generate'),
'MD5' => array('NONE', 0, 'md5_verify', 'md5_generate'), 'MD5' => array('NONE', 0, 'md5_verify', 'md5_generate'),
//'MD5-CRYPT' => array('NONE', 0, 'md5_crypt_verify', 'md5_crypt_generate'), //'MD5-CRYPT' => array('NONE', 0, 'md5_crypt_verify', 'md5_crypt_generate'),
'SHA' => array('BASE64', SHA1_RESULTLEN, null, 'sha1_generate'), 'SHA' => array('BASE64', SHA1_RESULTLEN, null, 'sha1_generate'),
'SHA1' => array('BASE64', SHA1_RESULTLEN, null, 'sha1_generate'), 'SHA1' => array('BASE64', SHA1_RESULTLEN, null, 'sha1_generate'),
//'SHA256' => array('BASE64', SHA256_RESULTLEN, NULL, 'sha256_generate'), //'SHA256' => array('BASE64', SHA256_RESULTLEN, NULL, 'sha256_generate'),
//'SMD5' => array('BASE64', 0, 'smd5_verify', 'smd5_generate'), //'SMD5' => array('BASE64', 0, 'smd5_verify', 'smd5_generate'),
//'SSHA' => array('BASE64', 0, 'ssha_verify', 'ssha_generate'), //'SSHA' => array('BASE64', 0, 'ssha_verify', 'ssha_generate'),
//'SSHA256' => array('BASE64', 0, 'ssha356_verify', 'ssha256_generate'), //'SSHA256' => array('BASE64', 0, 'ssha356_verify', 'ssha256_generate'),
'PLAIN' => array('NONE', 0, null, 'plain_generate'), 'PLAIN' => array('NONE', 0, null, 'plain_generate'),
'CLEARTEXT' => array('NONE', 0, null, 'plain_generate'), 'CLEARTEXT' => array('NONE', 0, null, 'plain_generate'),
'CRAM-MD5' => array('HEX', CRAM_MD5_CONTEXTLEN, null, 'cram_md5_generate'), 'CRAM-MD5' => array('HEX', CRAM_MD5_CONTEXTLEN, null, 'cram_md5_generate'),
//'HMAC-MD5' => array('HEX', CRAM_MD5_CONTEXTLEN, NULL, 'cram_md5_generate'), //'HMAC-MD5' => array('HEX', CRAM_MD5_CONTEXTLEN, NULL, 'cram_md5_generate'),
//'DIGEST-MD5' => array('HEX', MD5_RESULTLEN, NULL, 'digest_md5_generate'), //'DIGEST-MD5' => array('HEX', MD5_RESULTLEN, NULL, 'digest_md5_generate'),
//'PLAIN-MD4' => array('HEX', MD4_RESULTLEN, NULL, 'plain_md4_generate'), //'PLAIN-MD4' => array('HEX', MD4_RESULTLEN, NULL, 'plain_md4_generate'),
//'PLAIN-MD5' => array('HEX', MD5_RESULTLEN, NULL, 'plain_md5_generate'), //'PLAIN-MD5' => array('HEX', MD5_RESULTLEN, NULL, 'plain_md5_generate'),
//'LDAP-MD5' => array('BASE64', MD5_RESULTLEN, NULL, 'plain_md5_generate'), //'LDAP-MD5' => array('BASE64', MD5_RESULTLEN, NULL, 'plain_md5_generate'),
//'LANMAN' => array('HEX', LM_HASH_SIZE, NULL, 'lm_generate'), //'LANMAN' => array('HEX', LM_HASH_SIZE, NULL, 'lm_generate'),
//'NTLM' => array('HEX', NTLMSSP_HASH_SIZE, NULL, 'ntlm_generate'), //'NTLM' => array('HEX', NTLMSSP_HASH_SIZE, NULL, 'ntlm_generate'),
//'OTP' => array('NONE', 0, 'otp_verify', 'otp_generate'), //'OTP' => array('NONE', 0, 'otp_verify', 'otp_generate'),
//'SKEY' => array('NONE', 0, 'otp_verify', 'skey_generate'), //'SKEY' => array('NONE', 0, 'otp_verify', 'skey_generate'),
//'RPA' => array('HEX', MD5_RESULTLEN, NULL, 'rpa_generate'), //'RPA' => array('HEX', MD5_RESULTLEN, NULL, 'rpa_generate'),
); );
public function crypt($algorithm) { public function crypt($algorithm) {
if (!array_key_exists($algorithm, $this->password_schemes)) { if (!array_key_exists($algorithm, $this->password_schemes)) {
$this->errormsg[] = "This password scheme isn't supported. Check our Wiki!"; $this->errormsg[] = "This password scheme isn't supported. Check our Wiki!";
return false; return false;
} }
$scheme = $this->password_schemes[$algorithm]; $scheme = $this->password_schemes[$algorithm];
$func = '__'.$scheme[3]; $func = '__'.$scheme[3];
$this->password = $this->$func($this->plain); $this->password = $this->$func($this->plain);
//$this->plain = ''; //$this->plain = '';
} }
public function verify($algorithm, $password) { public function verify($algorithm, $password) {
if (!array_key_exists($algorithm, $this->password_schemes)) { if (!array_key_exists($algorithm, $this->password_schemes)) {
$this->errormsg[] = "This password scheme isn't supported. Check our Wiki!"; $this->errormsg[] = "This password scheme isn't supported. Check our Wiki!";
return false; return false;
} }
$scheme = $this->password_schemes[$algorithm]; $scheme = $this->password_schemes[$algorithm];
if ($scheme[2] == null) { if ($scheme[2] == null) {
$this->errormsg[] = "This password scheme doesn't support verification"; $this->errormsg[] = "This password scheme doesn't support verification";
return false; return false;
} }
$func = '__'.$scheme[2]; $func = '__'.$scheme[2];
return $this->$func($this->plain, $password); return $this->$func($this->plain, $password);
} }
private function __crypt_verify($plaintext, $password) { private function __crypt_verify($plaintext, $password) {
$crypted = crypt($plaintext, $password); $crypted = crypt($plaintext, $password);
return strcmp($crypted, $password) == 0; return strcmp($crypted, $password) == 0;
@ -83,15 +87,15 @@ class DovecotCrypt extends Crypt {
return $password; return $password;
} }
private function __md5_generate($plaintext) { private function __md5_generate($plaintext) {
return $password; return $plaintext;
} }
private function __sha1_generate() { private function __sha1_generate() {
} }
private function __plain_generate() { private function __plain_generate() {
} }
private function __cram_md5_generate($plaintext) { private function __cram_md5_generate($plaintext) {
#http://hg.dovecot.org/dovecot-1.2/file/84373d238073/src/lib/hmac-md5.c #http://hg.dovecot.org/dovecot-1.2/file/84373d238073/src/lib/hmac-md5.c
#http://hg.dovecot.org/dovecot-1.2/file/84373d238073/src/auth/password-scheme.c cram_md5_generate #http://hg.dovecot.org/dovecot-1.2/file/84373d238073/src/auth/password-scheme.c cram_md5_generate
#am i right that the hmac salt is the plaintext password itself? #am i right that the hmac salt is the plaintext password itself?
$salt = $plaintext; $salt = $plaintext;
@ -101,8 +105,11 @@ class DovecotCrypt extends Crypt {
return custom_hmac('md5', $plaintext, $salt); return custom_hmac('md5', $plaintext, $salt);
} }
} }
/**
* @return string
*/
public function custom_hmac($algo, $data, $key, $raw_output = false) { public function custom_hmac($algo, $data, $key, $raw_output = false) {
$algo = strtolower($algo); $algo = strtolower($algo);
$pack = 'H'.strlen($algo('test')); $pack = 'H'.strlen($algo('test'));