Keygen Intellij ^hot^ -

import java.security.*;

| Scenario | Algorithm | Typical key sizes | When to use | |----------|-----------|-------------------|-------------| | (asymmetric, encryption & signatures) | RSA | 2048 bits (minimum), 3072 bits, 4096 bits | General‑purpose public‑key encryption or signing | | ECDSA (asymmetric, signatures) | EC (named curves) | secp256r1 (aka P‑256 ), secp384r1 ( P‑384 ) | Smaller keys, same security as RSA‑3072, faster | | AES (symmetric, encryption) | AES | 128, 192, 256 bits | Bulk data encryption, symmetric key exchange |

public class AesKeyGen

package com.example.keygen;

// Subject & Issuer (self‑signed => same) info.set(X509CertInfo.SUBJECT, new CertificateSubjectName(subject)); info.set(X509CertInfo.ISSUER, new CertificateIssuerName(subject)); keygen intellij

public class EcKeyGen

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

import java.io.*; import java.math.BigInteger; import java.security.*; import java.security.cert.*; import java.util.Date; import javax.security.auth.x500.X500Principal;