diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec88dcec..4e92c721 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,6 +24,7 @@ project(crypto C)
 set(SA_CUSTOM_PATH_DEFAULT "../../sa/custom")
 set(KEY_CUSTOM_PATH_DEFAULT "../../key/custom")
 set(MC_CUSTOM_PATH_DEFAULT "../../mc/custom")
+set(CRYPTO_CUSTOM_PATH_DEFAULT "../../crypto/custom")
 
 
 
@@ -36,6 +37,8 @@ option(CODECOV "Code Coverage" OFF)
 option(CRYPTO_LIBGCRYPT "Cryptography Module - Libgcrypt" ON)
 option(CRYPTO_KMC "Cryptography Module - KMC" OFF)
 option(CRYPTO_WOLFSSL "Cryptography Module - WolfSSL" OFF)
+option(CRYPTO_CUSTOM "Cryptography Module - CUSTOM" OFF)
+option(CRYPTO_CUSTOM_PATH "Cryptography Module - CUSTOM PATH" OFF)
 option(DEBUG "Debug" OFF)
 option(KEY_CUSTOM "Key Module - Custom" OFF)
 option(KEY_CUSTOM_PATH "Custom Key Path" OFF)
@@ -83,6 +86,13 @@ if(SA_CUSTOM)
     message(STATUS "SA_CUSTOM being utilized.  Path set to: ${SA_CUSTOM_PATH}")
 endif()
 
+if(CRYPTO_CUSTOM)
+    if(NOT DEFINED ${CRYPTO_CUSTOM_PATH})
+        set(CRYPTO_CUSTOM_PATH ${CRYPTO_CUSTOM_PATH_DEFAULT})
+    endif()
+    message(STATUS "CRYPTO_CUSTOM being utilized.  Path set to: ${CRYPTO_CUSTOM_PATH}")
+endif()
+
 
 #
 # Build Flag Logic
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index dec1fb70..26e32e0c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -19,6 +19,14 @@ include_directories(../include)
 
 aux_source_directory(core LIB_SRC_FILES)
 
+if(CRYPTO_CUSTOM)
+    aux_source_directory(CRYPTO_CUSTOM_PATH CRYPTO_FILES)
+    list(APPEND LIB_SRC_FILES ${CRYPTO_FILES})
+else()
+    aux_source_directory(crypto/custom_stub CRYPTO_FILES)
+    list(APPEND LIB_SRC_FILES ${CRYPTO_FILES})
+endif()
+
 if(CRYPTO_LIBGCRYPT)
     aux_source_directory(crypto/libgcrypt LIBGCRYPT_FILES)
     list(APPEND LIB_SRC_FILES ${LIBGCRYPT_FILES})