chore: polishing

Author: linux-china

dotenvx-spring-boot/src/main/java/org/mvnsearch/dotenvx/jwt/Secp256k1KeyParser.java

@@ -1,6 +1,5 @@
 package org.mvnsearch.dotenvx.jwt;
 
-import com.nimbusds.jose.crypto.bc.BouncyCastleProviderSingleton;
 import org.bouncycastle.asn1.sec.SECNamedCurves;
 import org.bouncycastle.asn1.x9.X9ECParameters;
 import org.bouncycastle.jce.ECNamedCurveTable;
@@ -20,7 +19,7 @@
 public class Secp256k1KeyParser {
     static {
         if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null) {
-            Security.addProvider(BouncyCastleProviderSingleton.getInstance());
+            Security.addProvider(new BouncyCastleProvider());
         }
     }
 
@@ -45,7 +44,7 @@ public static ECPublicKey parseSecp256k1CompressedPublicKey(byte[] compressedPub
                 x9ECParameters.getH()
         );
         ECPublicKeySpec pubSpec = new ECPublicKeySpec(ecPoint, ecParameterSpec);
-        KeyFactory keyFactory = KeyFactory.getInstance("EC", "BC");
+        KeyFactory keyFactory = KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME);
         return (ECPublicKey) keyFactory.generatePublic(pubSpec);
     }
 
@@ -64,7 +63,7 @@ public static ECPrivateKey parseSecp256k1PrivateKey(byte[] privateKeyBytes) thro
         // Create an ECPrivateKeySpec
         ECPrivateKeySpec privateKeySpec = new ECPrivateKeySpec(privateKeyValue, ecSpec);
         // Get a KeyFactory for EC
-        KeyFactory keyFactory = KeyFactory.getInstance("EC", "BC");
+        KeyFactory keyFactory = KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME);
         // Generate the PrivateKey object
         return (ECPrivateKey) keyFactory.generatePrivate(privateKeySpec);
     }

dotenvx-spring-boot/src/main/java/org/mvnsearch/dotenvx/jwt/Secp256k1Signer.java

@@ -1,6 +1,5 @@
 package org.mvnsearch.dotenvx.jwt;
 
-import com.nimbusds.jose.crypto.bc.BouncyCastleProviderSingleton;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 
 import java.security.*;
@@ -12,7 +11,7 @@
 public class Secp256k1Signer {
     static {
         if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null) {
-            Security.addProvider(BouncyCastleProviderSingleton.getInstance());
+            Security.addProvider(new BouncyCastleProvider());
         }
     }
 
@@ -25,7 +24,7 @@ public class Secp256k1Signer {
      */
     public static byte[] signData(byte[] data, PrivateKey privateKey)
             throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException, SignatureException {
-        Signature signature = Signature.getInstance("SHA256withECDSA", "BC");
+        Signature signature = Signature.getInstance("SHA256withECDSA", BouncyCastleProvider.PROVIDER_NAME);
         signature.initSign(privateKey);
         signature.update(data);
         return signature.sign();
@@ -41,7 +40,7 @@ public static byte[] signData(byte[] data, PrivateKey privateKey)
      */
     public static boolean verifySignature(byte[] data, byte[] signatureBytes, PublicKey publicKey)
             throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException, SignatureException {
-        Signature signature = Signature.getInstance("SHA256withECDSA", "BC");
+        Signature signature = Signature.getInstance("SHA256withECDSA", BouncyCastleProvider.PROVIDER_NAME);
         signature.initVerify(publicKey);
         signature.update(data);
         return signature.verify(signatureBytes);