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

private static String sha1Hash(String toHash) {
    String hash = null;//from www.ja  v a 2 s.  com
    try {
        MessageDigest digest = MessageDigest.getInstance("SHA-1");
        byte[] bytes = toHash.getBytes("UTF-8");
        digest.update(bytes, 0, bytes.length);
        bytes = digest.digest();

        // This is ~55x faster than looping and String.formating()
        hash = bytesToHex(bytes);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    return hash;
}

From source file:Main.java

public static String md5(final String in) {
    MessageDigest digest;
    try {/* w ww.  j a va  2 s .c  o  m*/
        digest = MessageDigest.getInstance("MD5");
        digest.reset();
        digest.update(in.getBytes());
        final byte[] a = digest.digest();
        final int len = a.length;
        final StringBuilder sb = new StringBuilder(len << 1);
        for (int i = 0; i < len; i++) {
            sb.append(Character.forDigit((a[i] & 0xf0) >> 4, 16));
            sb.append(Character.forDigit(a[i] & 0x0f, 16));
        }
        return sb.toString();
    } catch (final NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:org.mascherl.example.service.LoginService.java

public static String sha256(String value) {
    MessageDigest messageDigest = createMessageDigest();
    messageDigest.update(value.getBytes(StandardCharsets.UTF_8));
    byte[] digest = messageDigest.digest();
    byte[] base64Digest = Base64.getEncoder().encode(digest);
    return new String(base64Digest, StandardCharsets.UTF_8);
}

From source file:Main.java

/**
 * This method uses MessageDigest class to convert the passed string to
 * SHA-1 hexadecimal text.//from   w w w  .  j a  va  2 s .  c  om
 *
 * @param text Input string
 * @return Return SHA-1 value
 */
public static String convertToSHA1(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    final MessageDigest md = MessageDigest.getInstance("SHA-1");
    byte[] sha1hash = new byte[30];
    md.update(text.getBytes("iso-8859-1"), 0, text.length());
    sha1hash = md.digest();
    return convertToHex(sha1hash);
}

From source file:StringUtils.java

public static String hashString(String sPassword) {

    if (sPassword == null || sPassword.equals("")) {
        return "empty:";
    } else {/*from w ww  . j a v  a 2s . c  om*/
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-1");
            md.update(sPassword.getBytes("UTF-8"));
            byte[] res = md.digest();
            return "sha1:" + byte2hex(res);
        } catch (NoSuchAlgorithmException e) {
            return "plain:" + sPassword;
        } catch (UnsupportedEncodingException e) {
            return "plain:" + sPassword;
        }
    }
}

From source file:Main.java

private static String encode(String str, String method) {
    MessageDigest md = null;
    String dstr = null;//w ww .jav a  2 s  .  c  o  m
    try {
        md = MessageDigest.getInstance(method);
        md.update(str.getBytes());
        dstr = new BigInteger(1, md.digest()).toString(16);
        int dstrCount = 32 - dstr.length();
        for (int i = 0; i < dstrCount; i++) {
            dstr = "0" + dstr;
        }
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return dstr;
}

From source file:Main.java

private static String getDigestValue(String s, String digestType) {
    String result = "";
    byte strTemp[] = s.getBytes();
    MessageDigest digestTemp;

    try {/*from   w  w  w . j a va 2 s.co m*/
        digestTemp = MessageDigest.getInstance(digestType);
        digestTemp.update(strTemp);

        byte[] digestValue = digestTemp.digest();

        result = bytesToHexString(digestValue);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
        return null;
    }
    return result;
}

From source file:org.nebulaframework.util.hashing.SHA1Generator.java

/**
 * Generates SHA1 Hash for the given {@code byte[]} and returns
 * the hash code as a {@code byte[]}./*  w  ww.  j a v a2s .  c om*/
 * 
 * @param source source value
 * @return SHA-1 hash for value
 * 
 * @see #generate(String)
 * @see #generateAsString(byte[])
 * 
 * @throws IllegalArgumentException if {@code source} is {@code null}
 */
public static byte[] generate(byte[] source) throws IllegalArgumentException {

    // Check for nulls
    Assert.notNull(source);

    try {
        MessageDigest digest = MessageDigest.getInstance("SHA");
        digest.update(source);
        return digest.digest();
    } catch (NoSuchAlgorithmException e) {
        log.fatal("Cannot load hashing algorithm", e);
        throw new RuntimeException(e);
    }
}

From source file:MD5.java

public static String create(String content) throws MD5IsNotSupported {
    String result = "";
    try {//  w ww  .  j a v  a  2  s .c  om
        byte[] defaultBytes = content.getBytes();
        MessageDigest algorithm = MessageDigest.getInstance("MD5");
        algorithm.reset();
        algorithm.update(defaultBytes);
        byte messageDigest[] = algorithm.digest();

        StringBuffer hexString = new StringBuffer();
        for (int i = 0; i < messageDigest.length; i++) {
            hexString.append(Integer.toHexString(0xFF & messageDigest[i]));
        }
        result = hexString.toString();
    } catch (NoSuchAlgorithmException ex) {
        throw new MD5IsNotSupported(ex);
    }

    assert !result.isEmpty();
    return result;
}

From source file:Main.java

public static String getMessageDigest(byte[] paramArrayOfByte) {
    char[] arrayOfChar1 = { 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 97, 98, 99, 100, 101, 102 };
    String str;/*from   w w w  .j a v  a  2 s. c om*/
    try {
        MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
        localMessageDigest.update(paramArrayOfByte);
        byte[] arrayOfByte = localMessageDigest.digest();
        int i = arrayOfByte.length;
        char[] arrayOfChar2 = new char[i * 2];
        int j = 0;
        int k = 0;
        while (true) {
            if (j >= i) {
                str = new String(arrayOfChar2);
                break;
            }
            int m = arrayOfByte[j];
            int n = k + 1;
            arrayOfChar2[k] = arrayOfChar1[(0xF & m >>> 4)];
            k = n + 1;
            arrayOfChar2[n] = arrayOfChar1[(m & 0xF)];
            j++;
        }
    } catch (Exception localException) {
        str = null;
    }
    return str;
}