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Tranbank API integration SDK for Java Projects

There is a newer version: 5.0.0

package cl.transbank.webpay.security;

import java.io.ByteArrayInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.security.Key;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import org.apache.cxf.helpers.IOUtils;

public class Utils {
    public static Key loadKey(String pemContent) throws Exception {
        PrivateKeyReader reader = new PrivateKeyReader(pemContent);
        return reader.getPrivateKey();
    }
    
    public static Certificate loadCertificate(String pemContent) throws Exception{
        CertificateFactory fact = CertificateFactory.getInstance("X.509");
        InputStream is = new ByteArrayInputStream(pemContent.getBytes(StandardCharsets.UTF_8));
        return fact.generateCertificate(is);
    }
    
    public static String getFileContents(String filename) throws IOException {
        return IOUtils.toString(new FileReader(filename));
    }
}