Example usage for org.bouncycastle.crypto.agreement.srp SRP6VerifierGenerator SRP6VerifierGenerator

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.agreement.srp SRP6VerifierGenerator SRP6VerifierGenerator.

Prototype

public SRP6VerifierGenerator() 

Source Link

Usage

From source file:com.aelitis.azureus.core.pairing.impl.PairingManagerTunnelHandler.java

License:Open Source License

public void setSRPPassword(char[] password) {
    if (password == null || password.length == 0) {

        SRP_SALT = null;/*from   www. java2s.com*/
        SRP_VERIFIER = null;

        CryptoManagerFactory.getSingleton().setSRPParameters(null, null);

    } else {

        start();

        try {
            byte[] I = DEFAULT_IDENTITY.getBytes("UTF-8");
            byte[] P = new String(password).getBytes("UTF-8");

            byte[] salt = new byte[16];

            RandomUtils.nextSecureBytes(salt);

            SRP6VerifierGenerator gen = new SRP6VerifierGenerator();

            gen.init(N_3072, G_3072, new SHA256Digest());

            BigInteger verifier = gen.generateVerifier(salt, I, P);

            CryptoManagerFactory.getSingleton().setSRPParameters(salt, verifier);

            SRP_SALT = salt;
            SRP_VERIFIER = verifier;

        } catch (Throwable e) {

            Debug.out(e);
        }
    }

    updateActive();
}

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From source file:org.forgerock.openicf.framework.remote.SecurityUtil.java

License:CDDL license

/**
 * Generate Secure Remote Password (SRP)
 *
 * @param username user name (aka "identity")
 * @param password password/*from  ww w.  ja va  2s.c o m*/
 * @param random   the source of randomness for this generator
 * @param params   group parameters (prime, generator)
 * @return generated verifier and random
 */
public static Pair<String, byte[]> generateVerifier(String username, String password, SecureRandom random,
        SRPGroupParameter params) {
    byte[] I = username.getBytes();
    byte[] P = password.getBytes();
    byte[] s = new byte[16];
    random.nextBytes(s);

    SRP6VerifierGenerator gen = new SRP6VerifierGenerator();
    gen.init(params.N, params.g, new SHA256Digest());
    BigInteger v = gen.generateVerifier(s, I, P);
    return Pair.of(v.toString(16), s);
}

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