encrypt String in SHA-256 - Android java.security

Android examples for java.security:Sha

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Description

encrypt String in SHA-256

Demo Code


import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import android.util.Log;

public class Main {

  public static String encryptSHA256(String str) {
    String ps = "";
    try {/*from  w  ww  .  j  av a 2  s.  com*/
      MessageDigest md = MessageDigest.getInstance("SHA-256");
      md.update(str.getBytes());
      ps = transformHex(md.digest());
    } catch (NoSuchAlgorithmException e) {
      Log.e("Simi - StringUtils", e.getMessage());
      return "";
    }
    return ps;
  }

  public static String transformHex(byte[] bts) {
    String des = "";
    String tmp = null;
    for (int i = 0; i < bts.length; i++) {
      tmp = (Integer.toHexString(bts[i] & 0xFF));
      if (tmp.length() == 1) {
        des += "0";
      }
      des += tmp;
    }
    return des;
  }
}

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