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Change Cipher Encryption Type #39

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Change Cipher Encryption Type #39

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030a58f
Update wp-multisite-sso.php
karks88 Mar 26, 2021
e8605fe
Merge pull request #1 from karks88/karks88-patch-1
karks88 Mar 26, 2021
52c9674
Update wp-multisite-sso.php
karks88 Mar 20, 2023
3482a9f
Update wp-multisite-sso.php
karks88 Mar 20, 2023
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20 changes: 16 additions & 4 deletions wp-multisite-sso.php
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
<?php
/*
Plugin Name: WP Multisite SSO
Version: 1.1.1
Version: 1.1.2
Plugin URI: http://voceconnect.com/
Description: Single sign on for a multisite network. Users are authenticated across all sites within the network.
Author: Voce Platforms, Sean McCafferty
Expand Down Expand Up @@ -144,8 +144,20 @@ public static function handle_login( $username, $user ) {
}

// encrypt the sso object
$cipher = 'AES-128-ECB';
$iv = openssl_random_pseudo_bytes( openssl_cipher_iv_length( $cipher ) );
//$cipher = 'AES-128-CBC';
//$iv = openssl_random_pseudo_bytes( openssl_cipher_iv_length( $cipher ) );

/* March 2023 Rewrite for PHP 8 Compatibility */

$cipher = 'AES-128-CBC';
$iv_length = openssl_cipher_iv_length($cipher);

if ($iv_length > 0) {
$iv = openssl_random_pseudo_bytes($iv_length);
} else {
// ECB mode or any other mode that does not require an IV
$iv = null;
}

$sso_objects = array_map( function( $sso_object ) use ( $iv, $cipher ) {
// encode the sso object
Expand Down Expand Up @@ -191,7 +203,7 @@ private static function authenticate_user_on_blog() {
$sso = base64_decode( esc_attr( $request_sso ) );

// Decrypt the SSO object.
$cipher = 'AES-128-ECB';
$cipher = 'AES-128-CBC';
$ivlen = openssl_cipher_iv_length( $cipher );
$iv = substr( $sso, 0, $ivlen );
$sha2len = 32;
Expand Down