((link)) Keygen Intellij -

/** * Generates an EC key pair using a named curve. * * @param curveName e.g. "secp256r1" (aka "P-256") */ public static KeyPair generate(String curveName) throws GeneralSecurityException KeyPairGenerator kpg = KeyPairGenerator.getInstance("EC"); ECGenParameterSpec ecSpec = new ECGenParameterSpec(curveName); kpg.initialize(ecSpec, new SecureRandom()); return kpg.generateKeyPair();

import java.security.*;

It’s an industry‑standard format ( .p12 / .pfx ) supported by virtually every platform (Java, .NET, OpenSSL, browsers). 3.2 PEM Files (Base64 with headers) Sometimes you need the key in PEM format (e.g., for OpenSSL). Bouncy Castle makes this trivial. keygen intellij

// Set version info.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));

// Create the certificate and sign it X509CertImpl cert = new X509CertImpl(info); cert.sign(keyPair.getPrivate(), sigAlg); /** * Generates an EC key pair using a named curve

import java.security.*;

public static X509Certificate generateSelfSignedCertificate( KeyPair keyPair, X500Principal subject, BigInteger serial, Date notBefore, Date notAfter, String sigAlg) throws Exception keygen intellij

// Serial number info.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(serial));