error: package org.bouncycastle.jcajce.provider.asymmetric.ec does not exist import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey;

i use online demo(https://javafiddle.leaningtech.com/) then replace my code, but it throw error; Here is my code ` import java.security.KeyFactory; import java.security.KeyPair; import java.security.KeyPairGenerator; import java.security.PublicKey; import java.security.SecureRandom; import java.security.spec.ECGenParameterSpec; import java.security.spec.X509EncodedKeySpec; import java.util.Base64; import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey; import org.bouncycastle.jce.provider.BouncyCastleProvider; import org.springframework.util.Base64Utils;

public class SM2Util { public SM2Util() { }

public static KeyPair generateSm2KeyPair() {
    ECGenParameterSpec sm2Spec = new ECGenParameterSpec("sm2p256v1");

    try {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC", new BouncyCastleProvider());
        kpg.initialize(sm2Spec, new SecureRandom());
        return kpg.generateKeyPair();
    } catch (Exception var3) {
        var3.printStackTrace();
        return null;
    }
}

public static byte[] getRawPublicKey(String publicKey) {
    PublicKey publicKeyObject = createPublicKey(publicKey);
    if (publicKeyObject != null) {
        byte[] src65 = ((BCECPublicKey)publicKeyObject).getQ().getEncoded(false);
        byte[] rawXY = new byte[64];
        System.arraycopy(src65, 1, rawXY, 0, rawXY.length);
        return rawXY;
    } else {
        return null;
    }
}

private static PublicKey createPublicKey(String publicKey) {
    PublicKey publickey = null;

    try {
        X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(Base64.getDecoder().decode(publicKey));
        KeyFactory keyFactory = KeyFactory.getInstance("EC", new BouncyCastleProvider());
        publickey = keyFactory.generatePublic(publicKeySpec);
        return publickey;
    } catch (Exception var4) {
        var4.printStackTrace();
        return null;
    }
}

public static void main(String[] args) throws Exception {
    KeyPair keyPair = generateSm2KeyPair();
    String plaintext = "test";
    System.out.println(Base64Utils.encode(keyPair.getPublic().getEncoded()));
    byte[] bytes = getRawPublicKey(new String(Base64Utils.encode(keyPair.getPublic().getEncoded())));
    System.out.println(new String(Base64Utils.encode(bytes)));
}

} `

leaningtech / cheerpj-meta

error: package org.bouncycastle.jcajce.provider.asymmetric.ec does not exist import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey; #172