8373231: ECDSAOperations::toAffinePoint is redundant

Author: johnshajiang

src/java.base/share/classes/sun/security/ec/ECDSAOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -68,7 +68,7 @@ public byte[] getNonceValue() {
 
     public ECDSAOperations(ECOperations ecOps, ECPoint basePoint) {
         this.ecOps = ecOps;
-        this.basePoint = toAffinePoint(basePoint, ecOps.getField());
+        this.basePoint = AffinePoint.fromECPoint(basePoint, ecOps.getField());
     }
 
     public ECOperations getEcOperations() {
@@ -79,14 +79,6 @@ public AffinePoint basePointMultiply(byte[] scalar) {
         return ecOps.multiply(basePoint, scalar).asAffine();
     }
 
-    public static AffinePoint toAffinePoint(ECPoint point,
-        IntegerFieldModuloP field) {
-
-        ImmutableIntegerModuloP affineX = field.getElement(point.getAffineX());
-        ImmutableIntegerModuloP affineY = field.getElement(point.getAffineY());
-        return new AffinePoint(affineX, affineY);
-    }
-
     public static
     Optional<ECDSAOperations> forParameters(ECParameterSpec ecParams) {
         Optional<ECOperations> curveOps =

test/jdk/sun/security/ec/ECDSAPrimitive.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -249,7 +249,7 @@ private static boolean verifySignedDigestImpl(ECDSAOperations ops, ECPoint publi
 
         byte[] u1Bytes = u1.asByteArray(length);
         byte[] u2Bytes = u2.asByteArray(length);
-        AffinePoint publicKeyPoint = ECDSAOperations.toAffinePoint(publicKey,
+        AffinePoint publicKeyPoint = AffinePoint.fromECPoint(publicKey,
                 ecOps.getField());
         MutablePoint R = ecOps.multiply(publicKeyPoint, u2Bytes);
         AffinePoint a1 = ops.basePointMultiply(u1Bytes);