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.ec2box.manage.util.OTPUtil.java

/**
 * generates OPT secret//from w w w  .  ja v  a  2s. co  m
 *
 * @return String shared secret
 */
public static String generateSecret() {
    byte[] buffer = new byte[(NUM_SCRATCH_CODES * SCRATCH_CODE_SIZE) + SECRET_SIZE];
    new SecureRandom().nextBytes(buffer);

    byte[] secret = Arrays.copyOf(buffer, SECRET_SIZE);

    return new String(new Base32().encode(secret));

}

From source file:crocserver.app.CrocSecurity.java

public static String createCode(byte[] secret, long value) throws Exception {
    Mac mac = createHmac(secret);
    return new Base32().encodeAsString(mac.doFinal(toByteArray(value)));
}

From source file:com.zxlim.totp.TOTP.java

public static final TOTP getInstance(final String encodedSecret) {
    Base32 base32 = new Base32();
    final byte[] secret = base32.decode(encodedSecret);
    return new TOTP(3, secret, encodedSecret);
}

From source file:me.whitmarbut.mfa.TOTP.java

private byte[] getSecretBytes(String secret) {
    secret = secret.toUpperCase();
    Base32 b32 = new Base32();
    return b32.decode(secret);
}

From source file:fr.ortolang.diffusion.security.authentication.TOTPHelper.java

public static String generateSecret() {
    byte[] buffer = new byte[20];
    rand.nextBytes(buffer);//from  w ww .  j  a  v  a2 s.  c om
    Base32 codec = new Base32();
    byte[] secretKey = Arrays.copyOf(buffer, 20);
    byte[] encodedKey = codec.encode(secretKey);
    return new String(encodedKey);
}

From source file:com.zxlim.totp.TOTP.java

public static final String generateSecret() {
    Base32 base32 = new Base32();
    SecureRandom random = null;/* w  w  w.  ja  va  2  s.  c  om*/
    final byte[] secret = new byte[secret_size_bits / 8];

    try {
        random = SecureRandom.getInstance("SHA1PRNG", "SUN");
    } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
        return null;
    }

    random.nextBytes(secret);

    return new String(base32.encode(secret));
}

From source file:fr.ortolang.diffusion.security.authentication.TOTPHelper.java

private static int generateTOTP(String secret, long time) {
    Base32 codec = new Base32();
    byte[] decodedKey = codec.decode(secret);
    byte[] msg = ByteBuffer.allocate(8).putLong(time).array();
    byte[] hash = hmacSha(decodedKey, msg);
    int offset = hash[hash.length - 1] & 0xf;
    int binary = ((hash[offset] & 0x7f) << 24) | ((hash[offset + 1] & 0xff) << 16)
            | ((hash[offset + 2] & 0xff) << 8) | (hash[offset + 3] & 0xff);
    return binary % 1000000;
}

From source file:io.hops.hopsworks.common.dao.user.security.ua.SecurityUtils.java

/**
 * Generate the secrete key for mobile devices.
 *
 * @return/*from w  w  w.j  ava  2  s .co m*/
 */
public static String calculateSecretKey() throws NoSuchAlgorithmException {
    byte[] secretKey = new byte[10];
    SecureRandom sha1Prng = SecureRandom.getInstance("SHA1PRNG");
    sha1Prng.nextBytes(secretKey);
    Base32 codec = new Base32();
    byte[] encodedKey = codec.encode(secretKey);
    return new String(encodedKey);
}

From source file:com.ignorelist.kassandra.steam.scraper.FileCache.java

public FileCache(Path cacheDirectory, CacheLoader<String, ? extends InputStream> valueLoader,
        long expireAfterMillis) {
    codec = new Base32();
    stripedLock = Striped.lazyWeakReadWriteLock(4 * Runtime.getRuntime().availableProcessors());
    this.cacheDirectory = cacheDirectory;
    this.valueLoader = valueLoader;
    this.expireAfterMillis = expireAfterMillis;
}

From source file:com.ec2box.manage.util.OTPUtil.java

/**
 * verifies code for OTP secret per time interval
 *
 * @param secret shared secret//from www  .j  a v  a2 s  . 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;

}