Wie SALT-Wert in Java generieren?

Question

Was ist der beste Weg, um einen SALT-Wert in Java als String zu erzeugen, der mindestens 32 Bytes lang ist?

Answer 1

final Random r = new SecureRandom(); 
byte[] salt = new byte[32]; 
r.nextBytes(salt); 
/** String encodedSalt = Base64.encodeBase64String(salt); */ 

Answer 2

In SpringSecurity können Sie org.springframework.security.crypto.keygen.KeyGenerators

http://static.springsource.org/spring-security/site/docs/3.1.x/apidocs/org/springframework/security/crypto/keygen/KeyGenerators.html

http://docs.spring.io/spring-security/site/docs/3.2.x/reference/htmlsingle/#spring-security-crypto-keygenerators