Revert "Hardware verified"

This reverts commit 756b492c.

c_baremetal/NTRUEncrypt.c

@@ -438,12 +438,14 @@ encrypt_cca(
 		TxBuffer[0]= 0x0000000000008800;
 		//memcpy(TxBuffer+1, h, 443*2);
 		for(tx_rx_c =1; tx_rx_c < 744; tx_rx_c ++) {
-			TxBuffer[tx_rx_c] = complement & h[744 - tx_rx_c -1];
+            // initialize RxBuffer with 0's
+			TxBuffer[tx_rx_c] = complement & h[tx_rx_c -1];
 		}
 
 		TxBuffer[744]= 0x0000000000008200;
 
 		for(tx_rx_c =745; tx_rx_c < 1239; tx_rx_c ++) {
+            // initialize RxBuffer with 0's
 			TxBuffer[tx_rx_c] = complement & r_pos[tx_rx_c-745];
 		}
 
@@ -464,9 +466,9 @@ encrypt_cca(
 			xil_printf("\r\n Encrypt Mult Execution Time (ENC) = %d \r\n", execution_time);
         #endif
 
-        for(tx_rx_c = 0; tx_rx_c < 743; tx_rx_c++) {
-            t[742-tx_rx_c] = RxBuffer[tx_rx_c+2];
-        }
+		for(tx_rx_c = 0; tx_rx_c < 744; tx_rx_c++) {
+			t[tx_rx_c] = RxBuffer[tx_rx_c+2];
+		}
 
 	}else{
 		#if ROTATION_ON
@@ -576,11 +578,13 @@ int decrypt_cca(
 		TxBuffer[0]= 0x0000000000008400;
 		//memcpy(TxBuffer+1, h, 443*2);
 		for(tx_rx_c =1; tx_rx_c < 495; tx_rx_c ++) {
+            // initialize RxBuffer with 0's
 			TxBuffer[tx_rx_c] = complement & F_pos[tx_rx_c -1];
 		}
 		TxBuffer[495]= 0x0000000000009100;
 		for(tx_rx_c =496; tx_rx_c < 1239; tx_rx_c ++) {
-            TxBuffer[tx_rx_c] = complement & c[1239-tx_rx_c-1];
+            // initialize RxBuffer with 0's
+			TxBuffer[tx_rx_c] = complement & c[tx_rx_c-496];
 
 		}
 
@@ -602,7 +606,7 @@ int decrypt_cca(
         #endif
 
 		for(tx_rx_c = 0; tx_rx_c < 743; tx_rx_c++) {
-			m[742-tx_rx_c] = RxBuffer[tx_rx_c+2];
+			m[tx_rx_c] = RxBuffer[tx_rx_c+2];
 		}
 	}else{
 		#if ROTATION_ON
@@ -674,6 +678,7 @@ int decrypt_cca(
 		TxBuffer[0]= 0x0000000000009200;
 		//memcpy(TxBuffer+1, h, 443*2);
 		for(tx_rx_c =1; tx_rx_c < 495; tx_rx_c ++) {
+            // initialize RxBuffer with 0's
 			TxBuffer[tx_rx_c] = complement & r_pos[tx_rx_c -1];
 		}
 
@@ -695,7 +700,7 @@ int decrypt_cca(
         #endif
 
 		for(tx_rx_c = 0; tx_rx_c < 743; tx_rx_c++) {
-			t_rec[742-tx_rx_c] = RxBuffer[tx_rx_c+1];
+			t_rec[tx_rx_c] = RxBuffer[tx_rx_c+1];
 		}
 	}else{
 		#if ROTATION_ON
@@ -711,6 +716,7 @@ int decrypt_cca(
 
             #if POLY_MUL_EXE
 				XTmrCtr_Stop(&TMRInst, 0);
+                // Read Timer value
 				execution_time = XTmrCtr_GetValue(&TMRInst, 0);
 				xil_printf("\r\n Decrypt Mult Execution Time (DEC2) = %d \r\n", execution_time);
             #endif