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

public static String md5Encoder(String content, boolean isCapital) {
    try {/*from   w w w  . j  a  va  2 s. c  o m*/
        byte[] strTemp = content.getBytes();
        MessageDigest mdTemp = MessageDigest.getInstance("MD5");
        mdTemp.update(strTemp);
        byte[] mds = mdTemp.digest();
        int j = mds.length;
        char str[] = new char[j * 2];
        int k = 0;
        for (byte md : mds) {
            if (isCapital) {
                str[k++] = CAPITAL_HEX_DIGITS[md >> 4 & 0xf];
                str[k++] = CAPITAL_HEX_DIGITS[md & 0xf];
            } else {
                str[k++] = LOWER_HEX_DIGITS[md >> 4 & 0xf];
                str[k++] = LOWER_HEX_DIGITS[md & 0xf];
            }
        }
        return new String(str);
    } catch (Exception e) {
        return "";
    }
}

From source file:Main.java

public static synchronized String md5(MessageDigest md5) {
    StringBuffer strBuf = new StringBuffer();
    byte[] result16 = md5.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);//from w ww  . j av  a 2 s  .  c o  m
    }

    return strBuf.toString();
}

From source file:Main.java

private static String hashAlgorithm(String hash, String text)
        throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = MessageDigest.getInstance(hash);
    md.update(text.getBytes("iso-8859-1"), 0, text.length());

    return convertToHex(md.digest());
}

From source file:Main.java

public static final String hash(final String s, final String algorithm) {
    try {//  w w  w .ja  v  a2 s  . c o m
        // Create MD5 or SHA-256 Hash
        MessageDigest digest = MessageDigest.getInstance(algorithm);
        digest.update(s.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:Main.java

public static String generateSHA1Hash(String textToBeHashed) {
    try {/*  ww  w . jav  a  2  s  .  c  o  m*/
        MessageDigest messageDigest = MessageDigest.getInstance(SHA1);
        messageDigest.update(textToBeHashed.getBytes());
        byte[] sha1hash = messageDigest.digest();
        return getHexString(sha1hash);
    } catch (Exception e) {
        throw new RuntimeException("Couldn't generate SHA-1 hash for " + textToBeHashed);
    }
}

From source file:Main.java

public static String md5(String str) {
    String cacheKey;//w w  w.  j a va2 s  . c  om
    try {
        final MessageDigest mDigest = MessageDigest.getInstance("MD5");
        mDigest.update(str.getBytes());
        cacheKey = bytesToHexString(mDigest.digest());
    } catch (NoSuchAlgorithmException e) {
        cacheKey = String.valueOf(str.hashCode());
    }
    return cacheKey;
}

From source file:Main.java

public static String keyToHashKey(String key) {
    String cacheKey;//from   w  w  w . j a v  a  2s.  c om
    try {
        final MessageDigest mDigest = MessageDigest.getInstance("MD5");
        mDigest.update(key.getBytes());
        cacheKey = bytesToHexString(mDigest.digest());
    } catch (NoSuchAlgorithmException e) {
        cacheKey = String.valueOf(key.hashCode());
    }
    return cacheKey;
}

From source file:Main.java

public static String makeMD5Hash(byte[] bytes) {
    try {/*w  w  w  .j  av  a  2  s  .  c  om*/
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(bytes, 0, bytes.length);
        byte[] sha1hash = md.digest();
        return convertToHex(sha1hash);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }
}

From source file:cc.recommenders.utils.Fingerprints.java

private static String toString(final MessageDigest digest) {
    final byte[] res = digest.digest();
    return toHexString(res);
}

From source file:Main.java

public static String generateHash(String pText) throws Exception {
    String hashValue;// w  ww  . ja  va 2 s  . c  o  m
    MessageDigest md = MessageDigest.getInstance("SHA-1");
    md.reset();
    md.update(pText.getBytes("ASCII"));
    hashValue = encodeHex(md.digest());
    return hashValue;
}