Example usage for java.security MessageDigest digest

Introduction

In this page you can find the example usage for java.security MessageDigest digest.

Prototype

public byte[] digest()

Source Link

Document

Completes the hash computation by performing final operations such as padding.

Usage

From source file:Main.java

/**
 * @param context//from   w  w w .j  a v a 2 s.co m
 * @return KeyHash
 * follow facebook developers link to get release key hash
 * https://developers.facebook.com/docs/android/getting-started#release-key-hash
 */
public static String getKeyHash(Context context) {
    PackageInfo packageInfo;
    String key = null;
    try {
        packageInfo = context.getPackageManager().getPackageInfo(
                context.getApplicationContext().getPackageName(), PackageManager.GET_SIGNATURES);
        for (Signature signature : packageInfo.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (PackageManager.NameNotFoundException e1) {
    } catch (NoSuchAlgorithmException e) {
    } catch (Exception e) {
    }
    return key;
}

From source file:com.agiletec.plugins.jpnewsletter.aps.system.services.newsletter.util.ShaEncoder.java

public static String encodeWord(String word) throws NoSuchAlgorithmException {
    if (word != null) {
        MessageDigest digest = MessageDigest.getInstance("SHA");
        digest.update(word.getBytes());/*from   ww  w  .  ja  v  a 2  s.  c  o  m*/
        byte bytes[] = digest.digest();
        StringBuilder buffer = new StringBuilder();
        for (int i = 0; i < bytes.length; i++) {
            int b = bytes[i] & 0xff;
            if (b < 16) {
                buffer.append("0");
            }
            buffer.append(Integer.toHexString(b));
        }
        word = buffer.toString();
    }
    return word;
}

From source file:Main.java

/**
 * Encrypt the plain text with MD5 algorithm.
 *
 * @param plainText The plain text.//from   w  w  w.j a v  a 2  s. co m
 * @return The Encrypt content.
 */
public static String md5Encrypt(String plainText) {
    try {
        MessageDigest digest = MessageDigest.getInstance("MD5");
        digest.update(plainText.getBytes(Charset.defaultCharset()));
        return new String(toHex(digest.digest()));
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

static public String md5(String string) {
    try {//w w  w. ja  va  2 s  .c o m
        // Create MD5 Hash
        java.security.MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
        digest.update(string.getBytes());
        byte messageDigest[] = digest.digest();

        // Create Hex String
        StringBuilder hexString = new StringBuilder();
        for (byte aMessageDigest : messageDigest) {
            String h = Integer.toHexString(0xFF & aMessageDigest);
            while (h.length() < 2)
                h = "0" + h;
            hexString.append(h);
        }
        return hexString.toString();

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:com.buddycloud.friendfinder.HashUtils.java

public static String encodeSHA256(String str) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = MessageDigest.getInstance("SHA-256");
    md.update(str.getBytes("UTF-8"));
    byte[] digest = md.digest();
    return Base64.encodeBase64String(digest);
}

From source file:Main.java

/***
 * compute hash for text// w w  w.  jav a 2  s .c o  m
 * 
 * @param text
 * @return
 * @throws NoSuchAlgorithmException
 * @throws UnsupportedEncodingException
 */
public static String SHA1(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = MessageDigest.getInstance("SHA-1");
    md.update(text.getBytes("iso-8859-1"), 0, text.length());
    byte[] sha1hash = md.digest();
    return convertToHex(sha1hash);
}

From source file:Main.java

public static String md5(String input) {
    String res = "";

    try {//w  ww. j av a 2 s.  co  m
        MessageDigest algorithm = MessageDigest.getInstance("MD5");
        algorithm.reset();
        algorithm.update(input.getBytes());
        byte[] md5 = algorithm.digest();
        String tmp = "";
        for (int i = 0; i < md5.length; i++) {
            tmp = (Integer.toHexString(0xFF & md5[i]));
            if (tmp.length() == 1) {
                res += "0" + tmp;
            } else {
                res += tmp;
            }
        }
    } catch (NoSuchAlgorithmException ex) {
        ex.printStackTrace();
        throw new RuntimeException(ex);
    }

    return res;
}

From source file:Main.java

@SuppressWarnings("finally")
public static String getMD5(String str) {
    StringBuffer strBuf = new StringBuffer();
    try {//from w w  w.  ja  va 2 s.c o  m
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(str.getBytes());
        byte[] result16 = md.digest();
        char[] digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
        for (int i = 0; i < result16.length; i++) {
            char[] c = new char[2];
            c[0] = digit[result16[i] >>> 4 & 0x0f];
            c[1] = digit[result16[i] & 0x0f];
            strBuf.append(c);
        }
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } finally {
        return strBuf.toString();
    }
}

From source file:Main.java

public static String getMD5Str(String password) {
    String strResult = "";
    MessageDigest md5;
    try {//  w ww  . ja  v  a 2 s . c  om
        md5 = MessageDigest.getInstance("MD5");
        md5.update(password.getBytes("UTF-8"));
        byte[] bzpassword_1 = md5.digest();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < bzpassword_1.length; ++i) {
            sb.append(String.format("%02x", bzpassword_1[i]));
        }
        md5.update(sb.toString().getBytes("UTF-8"));
        return sb.toString();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:baldrickv.s3streamingtool.Hash.java

/**
 * Cause apparently a hex encoded MD5 isn't good enough for S3.
 * They want a base64 encode of the raw binary hash.  blech.
 *//*from   www .j a v  a2 s  .c om*/
public static String getMd5ForS3(byte b[]) {
    try {
        MessageDigest sig = MessageDigest.getInstance("MD5");
        sig.update(b, 0, b.length);
        byte d[] = sig.digest();

        byte encoded[] = Base64.encodeBase64(d, false);

        return new String(encoded);

    } catch (Exception e) {

        e.printStackTrace();
        System.exit(-1);
        return null;
    }

}