From 15c9f9972128fce19a0f0113b630bcf9ba3a705f Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Tue, 11 Aug 2015 07:27:56 -0500
Subject: [PATCH 1/2] RSA: fix regression for PSS signatures

---
 phpseclib/Crypt/RSA.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/phpseclib/Crypt/RSA.php b/phpseclib/Crypt/RSA.php
index dfec4b49..b8602bd8 100644
--- a/phpseclib/Crypt/RSA.php
+++ b/phpseclib/Crypt/RSA.php
@@ -2637,7 +2637,7 @@ class Crypt_RSA
         // be output.
 
         $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8)
-        $sLen = $this->sLen === false ? $this->hLen : $this->sLen;
+        $sLen = $this->sLen ? $this->sLen : $this->hLen;
 
         $mHash = $this->hash->hash($m);
         if ($emLen < $this->hLen + $sLen + 2) {
@@ -2675,7 +2675,7 @@ class Crypt_RSA
         // be output.
 
         $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8);
-        $sLen = $this->sLen === false ? $this->hLen : $this->sLen;
+        $sLen = $this->sLen ? $this->sLen : $this->hLen;
 
         $mHash = $this->hash->hash($m);
         if ($emLen < $this->hLen + $sLen + 2) {

From f591962fc4fd4d908ae4e1dbf9958049d332ed95 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Tue, 11 Aug 2015 11:47:19 -0500
Subject: [PATCH 2/2] Tests/RSA: add PSS test

---
 tests/Unit/Crypt/RSA/ModeTest.php | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/Unit/Crypt/RSA/ModeTest.php b/tests/Unit/Crypt/RSA/ModeTest.php
index 99d2806c..065a2045 100644
--- a/tests/Unit/Crypt/RSA/ModeTest.php
+++ b/tests/Unit/Crypt/RSA/ModeTest.php
@@ -43,4 +43,24 @@ U9VQQSQzY1oZMVX8i1m5WUTLPz2yLJIBQVdXqhMCQBGoiuSoSjafUhV7i1cEGpb88h5NBYZzWXGZ
         $rsa->loadKey($privatekey);
         $this->assertEquals(trim($rsa->decrypt($result), "\0"), $plaintext);
     }
+
+    /**
+     * @group github768
+     */
+    public function testPSSSigs()
+    {
+        $rsa = new Crypt_RSA();
+        $rsa->loadKey('-----BEGIN PUBLIC KEY-----
+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqGKukO1De7zhZj6+H0qtjTkVx
+wTCpvKe4eCZ0FPqri0cb2JZfXJ/DgYSF6vUpwmJG8wVQZKjeGcjDOL5UlsuusFnc
+CzWBQ7RKNUSesmQRMSGkVb1/3j+skZ6UtW+5u09lHNsj6tQ51s1SPrCBkedbNf0T
+p0GbMJDyR4e9T04ZZwIDAQAB
+-----END PUBLIC KEY-----');
+
+        $sig = pack('H*', '1bd29a1d704a906cd7f726370ce1c63d8fb7b9a620871a05f3141a311c0d6e75fefb5d36dfb50d3ea2d37cd67992471419bfadd35da6e13b494' .
+            '058ddc9b568d4cfea13ddc3c62b86a6256f5f296980d1131d3eaec6089069a3de79983f73eae20198a18721338b4a66e9cfe80e4f8e4fcef7a5bead5cbb' .
+            'b8ac4c76adffbc178c');
+
+        $this->assertTrue($rsa->verify('zzzz', $sig));
+    }
 }