avoid low order bits of random just in case it's rand

git-svn-id: svn+q:///qpdf/trunk@815 71b93d88-0707-0410-a8cf-f5a4172ac649

avoid low order bits of random just in case it's rand
git-svn-id: svn+q:///qpdf/trunk@815 71b93d88-0707-0410-a8cf-f5a4172ac649
Jay Berkenbilt
1 parent 62c5fa6b
Showing 1 changed file with 1 additions and 1 deletions
libqpdf/Pl_AES_PDF.cc
@@ -121,7 +121,7 @@ Pl_AES_PDF::initializeVector()
     srandom(seed);
     for (unsigned int i = 0; i < this->buf_size; ++i)
     {
-	this->cbc_block[i] = (unsigned char)(random() & 0xff);
+	this->cbc_block[i] = (unsigned char)((random() & 0xff0) >> 4);
     }
 }