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@@ -6,12 +6,39 @@ C polynomial library for ECC based cryptography.
 - **Libntru** : Polynomial multiplication and inversion [commit](https://github.com/tbuktu/libntru/commit/15423e7f5f44d5ef69cb4aa50eaa03c07a7ecad0)
 - **Sanfoundry** : [C Program to Evaluate given polynomial equation](https://www.sanfoundry.com/c-program-polynomial-equation/)
 
+## Libntru Notes
+
+Libntru use some custom data types declared in `types.h`. 
+
+`NtruIntPoly` : Polynomial with 16-bit integer coefficients
+
+```c
+    typedef struct NtruIntPoly {
+        uint16_t N;
+        int16_t coeffs[NTRU_INT_POLY_SIZE];
+    } NtruIntPoly;
+```
+
+`NtruTernPoly` : Ternary polynomial, all coefficients are equal to -1, 0, or 1.
+```c
+    typedef struct NtruTernPoly {
+        uint16_t N;
+        uint16_t num_ones;
+        uint16_t num_neg_ones;
+        uint16_t ones[NTRU_MAX_ONES];
+        uint16_t neg_ones[NTRU_MAX_ONES];
+    } NtruTernPoly;
+```
+
+
+
 ## Key Components
+- [ ] Basic Evaluation on generated equation
 - [ ] Basic Operation (Addition, Reduction, Multiplication, Division)
 - [ ] Advance Operation (Inversion)
 - [ ] Bitwise for array 
 - [ ] Pointer management for polynomial indexes
-
+- [ ] Random Generators
 
 
 
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+#include <stdio.h>
+#include <stdlib.h>
+
+
diff --git a/src/types.h b/src/types.h
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+/* Here we Declared our custom data types */
+
+struct infPoly {
+
+}