Example usage for org.apache.commons.codec.binary Base32 Base32

Introduction

In this page you can find the example usage for org.apache.commons.codec.binary Base32 Base32.

Prototype

public Base32() 

Source Link

Usage

From source file:com.keybox.manage.util.OTPUtil.java

/**
 * verifies code for OTP secret per time interval
 *
 * @param secret shared secret/*from   ww w  . j a v a2s.  c  o m*/
 * @param token  verification token
 * @param time   time representation to calculate OTP
 * @return true if success
 */
private static boolean verifyToken(String secret, long token, long time) {

    long calculated = -1;

    byte[] key = new Base32().decode(secret);

    SecretKeySpec secretKey = new SecretKeySpec(key, "HmacSHA1");

    try {
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(secretKey);
        byte[] hash = mac.doFinal(ByteBuffer.allocate(8).putLong(time).array());

        int offset = hash[hash.length - 1] & 0xF;
        for (int i = 0; i < 4; ++i) {
            calculated <<= 8;
            calculated |= (hash[offset + i] & 0xFF);
        }

        calculated &= 0x7FFFFFFF;
        calculated %= 1000000;
    } catch (Exception ex) {
        log.error(ex.toString(), ex);
    }

    return (calculated != -1 && calculated == token);

}

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From source file:com.zimbra.common.auth.twofactor.TOTPAuthenticator.java

private byte[] decode(String secret, Encoding encoding) throws ServiceException {
    byte[] decoded;
    switch (encoding) {
    case BASE32:/*from w w w  .  j av  a 2s  .c  o m*/
        decoded = new Base32().decode(secret);
        break;
    case BASE64:
        decoded = Base64.decodeBase64(secret);
        break;
    default:
        throw ServiceException.FAILURE("unknown encoding", new Throwable());
    }
    return decoded;
}

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From source file:com.torchmind.authenticator.AbstractTokenGenerator.java

/**
 * {@inheritDoc}/*from   w  w  w. j a v a 2  s  .  c  o  m*/
 */
@NonNull
@Override
public String buildHandshakeCode(@NonNull SecretKey secretKey, boolean humanReadable) {
    String code = (new Base32()).encodeAsString(secretKey.getEncoded());

    if (humanReadable) {
        String tmp = "";

        for (int i = 1; i <= code.length(); ++i) {
            tmp += code.charAt((i - 1));

            if ((i % 4) == 0) {
                tmp += " ";
            }
        }

        if (tmp.charAt((tmp.length() - 1)) == ' ') {
            code = tmp.substring(0, (tmp.length() - 1)).toLowerCase();
        } else {
            code = tmp.toLowerCase();
        }
    }

    return code;
}

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From source file:com.threewks.thundr.util.Encoder.java

public Encoder base32() {
    data = new Base32().encode(data);
    return this;
}

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From source file:aaf.vhr.crypto.GoogleAuthenticator.java

/**
 * Check the code entered by the user to see if it is valid
 * @param secret  The users secret.//  w ww  . j a v a2  s  . c  o  m
 * @param code  The code displayed on the users device
 * @param t  The time in msec (System.currentTimeMillis() for example)
 * @return
 */
public static boolean checkCode(String secret, long code, long timeMsec) {
    Base32 codec = new Base32();
    byte[] decodedKey = codec.decode(secret);

    // convert unix msec time into a 30 second "window"
    // this is per the TOTP spec (see the RFC for details)
    long t = (timeMsec / 1000L) / 30L;
    // Window is used to check codes generated in the near past.
    // You can use this value to tune how far you're willing to go.

    for (int i = -WINDOW_SIZE; i <= WINDOW_SIZE; ++i) {
        long hash;
        try {
            hash = verifyCode(decodedKey, t + i);
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e.getMessage());
        }
        if (hash == code) {
            return true;
        }
    }
    // The validation code is invalid.
    return false;
}

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From source file:cz.alej.michalik.totp.server.User.java

/**
 * Ov TOTP kd//  www  .  j  a  v  a 2  s.  c  om
 * 
 * @param pass
 *            TOTP heslo poslan pomoc POST
 * @return JSON
 */
@Post
public String validate(String pass) {
    this.setStatus(error);
    msg.put("valid", "false");
    if (user != null && pass != null) {
        // Sdilene heslo
        byte[] secret = new Base32().decode(Data.get(user).getBytes());
        // Vygeneruji hesla v ?asovm rozsahu
        List<String> codes = getAllCodes(secret, 1);
        msg.put("status", "ok");
        if (codes.contains(pass)) {
            this.setStatus(success);
            msg.put("valid", "true");
        } else {
            this.setStatus(new Status(401));
            msg.put("valid", "false");
        }
    }
    return msg.toJSONString();

}

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From source file:com.threewks.thundr.util.Encoder.java

public Encoder unbase32() {
    data = new Base32().decode(data);
    return this;
}

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From source file:io.cos.cas.adaptors.postgres.models.OpenScienceFrameworkTimeBasedOneTimePassword.java

/**
 * Returns the TOTP secret in encoded as Base32.
 *
 * @return the encoded secret//from  w ww. ja  v  a  2 s  . co  m
 */
public String getTotpSecretBase32() {
    final byte[] bytes = DatatypeConverter.parseHexBinary(totpSecret);
    return new Base32().encodeAsString(bytes);
}

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From source file:me.footlights.core.crypto.Fingerprint.java

public static Fingerprint decode(String algorithmName, String hash) throws NoSuchAlgorithmException {
    MessageDigest algorithm = MessageDigest.getInstance(algorithmName);
    final URI uri;
    try {/*www. j  a  v a 2  s . com*/
        uri = new URI("urn", algorithmName + ":" + hash, null);
    } catch (URISyntaxException e) {
        throw new IllegalArgumentException(e);
    }

    return new Fingerprint(algorithm, ByteBuffer.wrap(new Base32().decode(hash.getBytes())), uri);
}

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From source file:chronic.app.ChronicCookie.java

public static String createAuthCode(byte[] secret, String string, long value) throws GeneralSecurityException {
    Mac mac = Mac.getInstance("HmacSHA1");
    SecretKeySpec signKey = new SecretKeySpec(secret, "HmacSHA1");
    mac.init(signKey);//from   w ww  . ja  v a2s.co  m
    mac.update(string.getBytes());
    return new Base32().encodeAsString(mac.doFinal(Bytes.toByteArray(value)));
}

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