diff --git a/Source/Utility/GGHash.cpp b/Source/Utility/GGHash.cpp
index c8740635..c1df4ce4 100644
--- a/Source/Utility/GGHash.cpp
+++ b/Source/Utility/GGHash.cpp
@@ -43,8 +43,42 @@ BOOL CGGHash::Load(const char* filename) {
 }
 
 // OFFSET: 0x00401920
+// FUNCTION: fn_00116
+int CGGHash::VerifyBuffer(const wchar_t* name, const unsigned char* buf, unsigned int size) {
+  this->m_error = 0;
+  if (name == nullptr) {
+    this->m_error = 1;
+    return 0;
+  }
+
+  if (buf == nullptr || size == 0) {
+    this->m_error = 2;
+    return 0;
+  }
+
+  MD5 md5;
+  std::uint32_t hash = md5.HashBuffer(buf, size);
+  return this->VerifyHash(name, hash);
+}
 
 // OFFSET: 0x004019E0
+// FUNCTION: fn_00117
+int CGGHash::VerifyFile(const wchar_t* filename) {
+  this->m_error = 0;
+  if (filename == nullptr) {
+    this->m_error = 1;
+    return 0;
+  }
+
+  MD5 md5;
+  std::uint32_t hash = md5.HashFile(filename);
+  if (hash == 0) {
+    this->m_error = 2;
+    return 0;
+  }
+
+  return this->VerifyHash(filename, hash);
+}
 
 // OFFSET: 0x00401AC0
 // FUNCTION: fn_00118