Java SHA1 sha1(String str)

Description

sha

License

Apache License

Declaration

public static String sha1(String str) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.security.MessageDigest;

public class Main {
    public static String sha1(String str) {
        try {// w  w w. j a v a 2 s. com
            MessageDigest md = MessageDigest.getInstance("SHA-1");
            md.update(str.getBytes());

            byte[] b = md.digest();
            StringBuffer sb = new StringBuffer();
            for (int i = 0; i < b.length; i++) {
                int v = (int) b[i];
                v = v < 0 ? 0x100 + v : v;
                String cc = Integer.toHexString(v);
                if (cc.length() == 1)
                    sb.append('0');
                sb.append(cc);
            }

            return sb.toString();
        } catch (Exception e) {
        }
        return "";
    }
}

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