Examples with MessageDigest java.security.MessageDigest used on opensource projects

Example 46 with MessageDigest

use of java.security.MessageDigest in project siena by mandubian.

the class Util method sha1.

public static String sha1(String message) {
    try {
        byte[] buffer = message.getBytes("UTF-8");
        MessageDigest md = MessageDigest.getInstance("SHA1");
        md.update(buffer);
        byte[] digest = md.digest();
        char[] hash = new char[40];
        for (int i = 0, n = 0; i < digest.length; i++) {
            byte aux = digest[i];
            int b = aux & 0xff;
            String hex = Integer.toHexString(b);
            if (hex.length() == 1) {
                hash[n++] = '0';
                hash[n++] = hex.charAt(0);
            } else {
                hash[n++] = hex.charAt(0);
                hash[n++] = hex.charAt(1);
            }
        }
        return new String(hash);
    } catch (Exception e) {
        // should never happen. UTF-8 and SHA1 are constants
        throw new RuntimeException(e);
    }
}

Example 47 with MessageDigest

use of java.security.MessageDigest in project databus by linkedin.

the class RegistrationIdGenerator method generateByteHash.

/**
	 * Generate a hash out of the String id
	 *
	 * @param id
	 * @return
	 */
private static String generateByteHash(String id) {
    try {
        final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        messageDigest.reset();
        messageDigest.update(id.getBytes(Charset.forName("UTF8")));
        final byte[] resultsByte = messageDigest.digest();
        String hash = new String(Hex.encodeHex(resultsByte));
        final int length = 8;
        if (hash.length() > length)
            hash = hash.substring(0, length);
        return hash;
    } catch (NoSuchAlgorithmException nse) {
        LOG.error("Unexpected error : Got NoSuchAlgorithm exception for MD5");
        return "";
    }
}

Example 48 with MessageDigest

use of java.security.MessageDigest in project spring-security by spring-projects.

the class TokenBasedRememberMeServices method makeTokenSignature.

/**
	 * Calculates the digital signature to be put in the cookie. Default value is MD5
	 * ("username:tokenExpiryTime:password:key")
	 */
protected String makeTokenSignature(long tokenExpiryTime, String username, String password) {
    String data = username + ":" + tokenExpiryTime + ":" + password + ":" + getKey();
    MessageDigest digest;
    try {
        digest = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException("No MD5 algorithm available!");
    }
    return new String(Hex.encode(digest.digest(data.getBytes())));
}

Example 49 with MessageDigest

use of java.security.MessageDigest in project spring-security-oauth by spring-projects.

the class DefaultClientKeyGenerator method extractKey.

public String extractKey(OAuth2ProtectedResourceDetails resource, Authentication authentication) {
    Map<String, String> values = new LinkedHashMap<String, String>();
    if (authentication != null) {
        values.put(USERNAME, authentication.getName());
    }
    values.put(CLIENT_ID, resource.getClientId());
    if (resource.getScope() != null) {
        values.put(SCOPE, OAuth2Utils.formatParameterList(resource.getScope()));
    }
    MessageDigest digest;
    try {
        digest = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException("MD5 algorithm not available.  Fatal (should be in the JDK).");
    }
    try {
        byte[] bytes = digest.digest(values.toString().getBytes("UTF-8"));
        return String.format("%032x", new BigInteger(1, bytes));
    } catch (UnsupportedEncodingException e) {
        throw new IllegalStateException("UTF-8 encoding not available.  Fatal (should be in the JDK).");
    }
}

Example 50 with MessageDigest

use of java.security.MessageDigest in project springside4 by springside.

the class HashUtil method get.

private static MessageDigest get(ThreadLocal<MessageDigest> messageDigest) {
    MessageDigest instance = messageDigest.get();
    instance.reset();
    return instance;
}