翰林优商.apk(点击下载) / h.java

package com.cmic.sso.sdk.h;

import android.text.TextUtils;
import com.umeng.analytics.pro.cb;
import java.security.MessageDigest;

public class h {
    private static final char[] a = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};

    public static String a(String str) {
        if (TextUtils.isEmpty(str)) {
            return null;
        }
        try {
            return a(str.getBytes("utf-8"));
        } catch (Exception unused) {
            return null;
        }
    }

    public static String a(byte[] bArr) {
        if (bArr == null) {
            return null;
        }
        try {
            MessageDigest instance = MessageDigest.getInstance("MD5");
            instance.reset();
            instance.update(bArr);
            return b(instance.digest());
        } catch (Exception unused) {
            return null;
        }
    }

    private static String b(byte[] bArr) {
        if (bArr == null) {
            return null;
        }
        char[] cArr = new char[(bArr.length * 2)];
        int i = 0;
        for (byte b : bArr) {
            int i2 = i + 1;
            char[] cArr2 = a;
            cArr[i] = cArr2[(b >>> 4) & 15];
            i = i2 + 1;
            cArr[i2] = cArr2[b & cb.m];
        }
        return new String(cArr);
    }
}