How to encrypt in the Java Web project

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Can someone pass me some material with the safest way to make the security of a system?

I want to put this in the user registration in my JSF project with Primefaces 5.1 for when it is registered save the password already encrypted in the database.

java jsf cryptography

  • I looked for JSF encryption on Google and found several links. Including video in Portuguese. However, think that it is indifferent to be JSF or MVC or anything else.

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You can use the lib Bcrypt.

// criptografando  
password = BCrypt.hashpw(password, BCrypt.gensalt());
// verificando se são a mesma senha
BCrypt.checkpw(password, userCheck.getPassword(); // retorna true/false

Currently I use it in my java projects, very secure, one detail is that in no way can you decrypt the password. You can only compare a String with an already encrypted password

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