TODO: genP22

Author: gefeili

core/src/main/java/org/bouncycastle/pqc/crypto/snova/SnovaEngine.java

@@ -332,7 +332,8 @@ private void gf16mScale(byte[] a, byte k, byte[] result)
         }
     }
 
-    public void genF(MapGroup2 map2, MapGroup1 map1, byte[][][] T12) {
+    public void genF(MapGroup2 map2, MapGroup1 map1, byte[][][] T12)
+    {
         int m = params.getM();
         int v = params.getV();
         int o = params.getO();
@@ -347,10 +348,14 @@ public void genF(MapGroup2 map2, MapGroup1 map1, byte[][][] T12) {
         byte[] temp = new byte[lsq];
 
         // First matrix operation sequence
-        for (int i = 0; i < m; i++) {
-            for (int j = 0; j < v; j++) {
-                for (int k = 0; k < o; k++) {
-                    for (int index = 0; index < v; index++) {
+        for (int i = 0; i < m; i++)
+        {
+            for (int j = 0; j < v; j++)
+            {
+                for (int k = 0; k < o; k++)
+                {
+                    for (int index = 0; index < v; index++)
+                    {
                         GF16Utils.gf16mMul(temp, map1.p11[i][j][index], T12[index][k], l);
                         GF16Utils.gf16mAdd(map2.f12[i][j][k], map2.f12[i][j][k], temp, l);
                     }
@@ -359,10 +364,14 @@ public void genF(MapGroup2 map2, MapGroup1 map1, byte[][][] T12) {
         }
 
         // Second matrix operation sequence
-        for (int i = 0; i < m; i++) {
-            for (int j = 0; j < o; j++) {
-                for (int k = 0; k < v; k++) {
-                    for (int index = 0; index < v; index++) {
+        for (int i = 0; i < m; i++)
+        {
+            for (int j = 0; j < o; j++)
+            {
+                for (int k = 0; k < v; k++)
+                {
+                    for (int index = 0; index < v; index++)
+                    {
                         GF16Utils.gf16mMul(temp, T12[index][j], map1.p11[i][index][k], l);
                         GF16Utils.gf16mAdd(map2.f21[i][j][k], map2.f21[i][j][k], temp, l);
                     }
@@ -371,14 +380,18 @@ public void genF(MapGroup2 map2, MapGroup1 map1, byte[][][] T12) {
         }
 
         // Secure clear temporary buffer
-        Arrays.fill(temp, (byte) 0);
+        Arrays.fill(temp, (byte)0);
     }
 
     private static void copy4DMatrix(byte[][][][] src, byte[][][][] dest,
-                                     int dim1, int dim2, int dim3, int lsq) {
-        for (int i = 0; i < dim1; i++) {
-            for (int j = 0; j < dim2; j++) {
-                for (int k = 0; k < dim3; k++) {
+                                     int dim1, int dim2, int dim3, int lsq)
+    {
+        for (int i = 0; i < dim1; i++)
+        {
+            for (int j = 0; j < dim2; j++)
+            {
+                for (int k = 0; k < dim3; k++)
+                {
                     System.arraycopy(
                         src[i][j][k], 0,
                         dest[i][j][k], 0,
@@ -389,7 +402,8 @@ private static void copy4DMatrix(byte[][][][] src, byte[][][][] dest,
         }
     }
 
-    public void genP22(byte[] outP22, byte[][][] T12, byte[][][][] P21, byte[][][][] F12, SnovaParameters params) {
+    public void genP22(byte[] outP22, byte[][][] T12, byte[][][][] P21, byte[][][][] F12, SnovaParameters params)
+    {
         int m = params.getM();
         int o = params.getO();
         int v = params.getV();
@@ -403,11 +417,16 @@ public void genP22(byte[] outP22, byte[][][] T12, byte[][][][] P21, byte[][][][]
         byte[] temp1 = new byte[lsq];
         byte[] temp2 = new byte[lsq];
 
-        try {
-            for (int i = 0; i < m; i++) {
-                for (int j = 0; j < o; j++) {
-                    for (int k = 0; k < o; k++) {
-                        for (int index = 0; index < v; index++) {
+        try
+        {
+            for (int i = 0; i < m; i++)
+            {
+                for (int j = 0; j < o; j++)
+                {
+                    for (int k = 0; k < o; k++)
+                    {
+                        for (int index = 0; index < v; index++)
+                        {
                             // temp1 = T12[index][j] * F12[i][index][k]
                             GF16Utils.gf16mMul(temp1, T12[index][j], F12[i][index][k], l);
 
@@ -427,10 +446,12 @@ public void genP22(byte[] outP22, byte[][][] T12, byte[][][][] P21, byte[][][][]
             // Convert GF16 elements to packed bytes
             //TODO
             //GF16Utils.decode(P22, outP22, m * o * o *lsq);
-        } finally {
+        }
+        finally
+        {
             // Secure clear temporary buffers
-            Arrays.fill(temp1, (byte) 0);
-            Arrays.fill(temp2, (byte) 0);
+            Arrays.fill(temp1, (byte)0);
+            Arrays.fill(temp2, (byte)0);
         }
     }
 }