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 hexSHA1(String value) {
    try {//from   w w  w  .java 2 s  .  c  o  m
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        md.update(value.getBytes("utf-8"));
        byte[] digest = md.digest();
        return byteToHexString(digest);
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

From source file:Main.java

public static String MD5Crypto(String str) {
    try {//from   w w  w .java  2 s.  c om
        // Create MD5 Hash
        MessageDigest digest = MessageDigest.getInstance("MD5");
        digest.update(str.getBytes());
        byte messageDigest[] = digest.digest();
        return toHexString(messageDigest);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    return "";
}

From source file:Main.java

private static byte[] getHash(@NonNull X509Certificate certificate)
        throws NoSuchAlgorithmException, CertificateEncodingException {
    MessageDigest digest = java.security.MessageDigest.getInstance("SHA1");
    digest.update(certificate.getEncoded());
    return digest.digest();
}

From source file:Main.java

public static final String toMD5(final String toEncrypt) {
    try {//from ww  w. j  a  v a 2  s . c  o m
        final MessageDigest digest = MessageDigest.getInstance("md5");
        digest.update(toEncrypt.getBytes());
        final byte[] bytes = digest.digest();
        final StringBuilder sb = new StringBuilder();
        for (int i = 0; i < bytes.length; i++) {
            sb.append(String.format("%02X", bytes[i]));
        }
        return sb.toString().toLowerCase();
    } catch (Exception exc) {
        return null; // Impossibru!
    }
}

From source file:Main.java

public static String convertToMD5(String toEnc) {
    try {//from   ww  w  .  j a v a  2s.  c  om
        MessageDigest mdEnc = MessageDigest.getInstance("MD5");
        mdEnc.update(toEnc.getBytes(), 0, toEnc.length());
        return new BigInteger(1, mdEnc.digest()).toString(16);
    } catch (Exception e) {
        return null;
    }
}

From source file:Main.java

public static String md5(String input) throws Exception {
    MessageDigest md5 = MessageDigest.getInstance("MD5");
    md5.update(input.getBytes("UTF-8"));
    BigInteger hash = new BigInteger(1, md5.digest());
    return String.format("%1$032X", hash);
}

From source file:Main.java

public static String SHA1(String s) {
    try {//  w  ww  .ja v  a  2  s  . c  om
        MessageDigest digest = MessageDigest.getInstance("SHA-1");
        digest.update(s.getBytes());
        byte messageDigest[] = digest.digest();
        return toHexString(messageDigest);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

public static String encryption(String plainText) {
    String re_md5 = "";
    try {//www .j  a  v  a2s  . c om
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(plainText.getBytes());
        byte b[] = md.digest();
        int i = 0;

        StringBuilder sb = new StringBuilder("");
        for (int offset = 0, len = b.length; offset < len; offset++) {
            i = b[offset];
            if (i < 0) {
                i += 256;
            }
            if (i < 16) {
                sb.append("0");
            }
            sb.append(Integer.toHexString(i));
        }
        re_md5 = sb.toString();

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return re_md5;
}

From source file:Main.java

public static String hashkeyForDisk(String url) {
    try {//from ww  w.  j  av a 2s  .  c  om
        final MessageDigest digest = MessageDigest.getInstance("MD5");
        digest.update(url.getBytes());
        return bytesToHexString(digest.digest());
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
        return String.valueOf(url.hashCode());
    }
}

From source file:Main.java

public static String sha1(String str) {
    if (str == null || str.length() == 0) {
        return null;
    }//from  www  .jav a  2  s.  c  o  m

    char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };

    try {
        MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
        mdTemp.update(str.getBytes());

        byte[] md = mdTemp.digest();
        int j = md.length;
        char buf[] = new char[j * 2];
        int k = 0;
        for (int i = 0; i < j; i++) {
            byte byte0 = md[i];
            buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
            buf[k++] = hexDigits[byte0 & 0xf];
        }
        return new String(buf);
    } catch (Exception e) {
        return null;
    }
}