Example usage for org.bouncycastle.crypto.generators Argon2BytesGenerator generateBytes

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.generators Argon2BytesGenerator generateBytes.

Prototype

public int generateBytes(byte[] password, byte[] out) 

Source Link

Usage

From source file:org.springframework.security.crypto.argon2.Argon2PasswordEncoder.java

License:Apache License

@Override
public String encode(CharSequence rawPassword) {
    byte[] salt = saltGenerator.generateKey();
    byte[] hash = new byte[hashLength];

    Argon2Parameters params = new Argon2Parameters.Builder(Argon2Parameters.ARGON2_id).withSalt(salt)
            .withParallelism(parallelism).withMemoryAsKB(memory).withIterations(iterations).build();
    Argon2BytesGenerator generator = new Argon2BytesGenerator();
    generator.init(params);/* ww w .  j av a 2  s.  c o m*/
    generator.generateBytes(rawPassword.toString().toCharArray(), hash);

    return Argon2EncodingUtils.encode(hash, params);
}

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From source file:org.springframework.security.crypto.argon2.Argon2PasswordEncoder.java

License:Apache License

@Override
public boolean matches(CharSequence rawPassword, String encodedPassword) {
    if (encodedPassword == null) {
        logger.warn("password hash is null");
        return false;
    }//from  w  w  w  . j av a 2  s .  c o  m

    Argon2EncodingUtils.Argon2Hash decoded;

    try {
        decoded = Argon2EncodingUtils.decode(encodedPassword);
    } catch (IllegalArgumentException e) {
        logger.warn("Malformed password hash", e);
        return false;
    }

    byte[] hashBytes = new byte[decoded.getHash().length];

    Argon2BytesGenerator generator = new Argon2BytesGenerator();
    generator.init(decoded.getParameters());
    generator.generateBytes(rawPassword.toString().toCharArray(), hashBytes);

    return constantTimeArrayEquals(decoded.getHash(), hashBytes);
}

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