Add missing test cases

(cherry picked from commit 91b12c0741676c33419e56bf098be7e2421fd408)

core/vm/testdata/precompiles/p256Verify.json

@@ -5444,5 +5444,26 @@
     "Gas": 3450,
     "Name": "wycheproof/ecdsa_webcrypto_test.json EcdsaP1363Verify SHA-256 #311: y-coordinate of the public key is large",
     "NoBenchmark": false
+  },
+  {
+    "Input": "2f77668a9dfbf8d5848b9eeb4a7145ca94c6ed9236e4a773f6dcafa5132b2f9170bebe684cdcb5ca72a42f0d873879359bd1781a591809947628d313a3814f67aec03aca8f5587a4d535fa31027bbe9cc0e464b1c3577f4c2dcde6b2094798a90000000000000000000000000000000000000000000000000000000000000000fffffffeecad44b6f05d15b33146549c2297b522a5eed8430cff596758e6c43d",
+    "Expected": "",
+    "Gas": 3450,
+    "Name": "invalid public key x param errors",
+    "NoBenchmark": false
+  },
+  {
+    "Input": "2f77668a9dfbf8d5848b9eeb4a7145ca94c6ed9236e4a773f6dcafa5132b2f9170bebe684cdcb5ca72a42f0d873879359bd1781a591809947628d313a3814f67aec03aca8f5587a4d535fa31027bbe9cc0e464b1c3577f4c2dcde6b2094798a9bcbb2914c79f045eaa6ecbbc612816b3be5d2d6796707d8125e9f851c18af0150000000000000000000000000000000000000000000000000000000000000000",
+    "Expected": "",
+    "Gas": 3450,
+    "Name": "invalid public key y param errors",
+    "NoBenchmark": false
+  },
+  {
+    "Input": "2f77668a9dfbf8d5848b9eeb4a7145ca94c6ed9236e4a773f6dcafa5132b2f9170bebe684cdcb5ca72a42f0d873879359bd1781a591809947628d313a3814f67aec03aca8f5587a4d535fa31027bbe9cc0e464b1c3577f4c2dcde6b2094798a900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "Expected": "",
+    "Gas": 3450,
+    "Name": "reference point errors",
+    "NoBenchmark": false
   }
 ]

crypto/secp256r1/publickey.go

@@ -6,7 +6,7 @@ import (
 	"math/big"
 )
 
-// Generates approptiate public key format from given coordinates
+// Generates appropriate public key format from given coordinates
 func newPublicKey(x, y *big.Int) *ecdsa.PublicKey {
 	// Check if the given coordinates are valid
 	if x == nil || y == nil || !elliptic.P256().IsOnCurve(x, y) {

crypto/secp256r1/verifier.go

@@ -5,7 +5,8 @@ import (
 	"math/big"
 )
 
-// Verifies the given signature (r, s) for the given hash and public key (x, y).
+// Verify verifies the given signature (r, s) for the given hash and public key (x, y).
+// It returns true if the signature is valid, false otherwise.
 func Verify(hash []byte, r, s, x, y *big.Int) bool {
 	// Create the public key format
 	publicKey := newPublicKey(x, y)