SecureRandom: nextBytes(byte[] bytes) : SecureRandom « java.security « Java by API

1. Java by API
2. java.security
3. SecureRandom

SecureRandom: nextBytes(byte[] bytes)

  


import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;

public class Main {
  public static void main(String[] args) throws NoSuchAlgorithmException {
    int numBytes = (new Integer("1111")).intValue();
    long seed = 01;
    if (args.length > 1)
      seed = (new Long("1111111111")).longValue();
    SecureRandom srand = SecureRandom.getInstance("SHA1PRNG");
    if (seed != 01)
      srand.setSeed(seed);
    byte[] bytes = new byte[numBytes];
    srand.nextBytes(bytes);
    System.out.println(new String(bytes));
  }
}

   
    
  

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