Support for read-only configurations added

lib/EAPBase/src/Credentials.cpp

@@ -280,7 +280,10 @@ bool eap::credentials_pass::retrieve(_In_ LPCTSTR pszTargetName, _Out_ EAP_ERROR
         return false;
     }
 
-    m_identity = cred->UserName;
+    if (cred->UserName)
+        m_identity = cred->UserName;
+    else
+        m_identity.clear();
 
     // Decrypt the password using user's key.
     string password_base64;

lib/EAPBase/src/Module.cpp

@@ -150,7 +150,7 @@ bool eap::module::encrypt(_In_ HCRYPTPROV hProv, _In_bytecount_(size) const void
     vector<unsigned char, sanitizing_allocator<unsigned char> > buf(size);
     memcpy(buf.data(), data, size);
     if (!CryptGetKeyParam(key, KP_BLOCKLEN, dwBlockLen, 0)) dwBlockLen = 0;
-    buf.reserve((size + dwBlockLen - 1) / dwBlockLen * dwBlockLen);
+    buf.reserve(std::max<size_t>((size + dwBlockLen - 1) / dwBlockLen, 1) * dwBlockLen);
 
     // Encrypt the data using our public key.
     if (!CryptEncrypt(key, hHash, TRUE, 0, buf)) {