diff --git a/demos/demo_dynamic.py b/demos/demo_dynamic.py
index be538c0..275a6e8 100644
--- a/demos/demo_dynamic.py
+++ b/demos/demo_dynamic.py
@@ -109,6 +109,8 @@ if 1:
     print '\n  selected constants:'
     
     names = [
+        'ENDIAN_LITTLE',
+        'ENDIAN_64BITWORD',
         'PK_PUBLIC',
         'MAX_RSA_SIZE',
         'CTR_COUNTER_BIG_ENDIAN',
diff --git a/src/misc/crypt/crypt_constants.c b/src/misc/crypt/crypt_constants.c
index 79b1942..bc74578 100755
--- a/src/misc/crypt/crypt_constants.c
+++ b/src/misc/crypt/crypt_constants.c
@@ -25,6 +25,30 @@ typedef struct {
 } crypt_constant;
 
 crypt_constant _crypt_constants[] = {
+#ifdef ENDIAN_LITTLE
+    {"ENDIAN_LITTLE",             1},       // true
+#else
+    {"ENDIAN_LITTLE",             0},       // false
+#endif
+
+#ifdef ENDIAN_BIG
+    {"ENDIAN_BIG",                1},       // true
+#else
+    {"ENDIAN_BIG",                0},       // false
+#endif
+
+#ifdef ENDIAN_32BITWORD
+    {"ENDIAN_32BITWORD",          1},       // true
+#else
+    {"ENDIAN_32BITWORD",          0},       // false
+#endif
+
+#ifdef ENDIAN_64BITWORD
+    {"ENDIAN_64BITWORD",          1},       // true
+#else
+    {"ENDIAN_64BITWORD",          0},       // false
+#endif
+
 #ifdef LTC_CTR_MODE
     {"CTR_COUNTER_LITTLE_ENDIAN", CTR_COUNTER_LITTLE_ENDIAN},
     {"CTR_COUNTER_BIG_ENDIAN",    CTR_COUNTER_BIG_ENDIAN},