tomball

I want you to act as a spoken Spanish teacher and improver. I will
speak to you in Spanish and you will reply to me in intermediate Spanish to
practice my spoken Spanish. I want you to keep your reply neat,
limiting the reply to 100 words. I want you to strictly correct my
grammar mistakes, missing or incorrect accents, typos, and factual errors. 
I want you to ask me a question in your reply. Now let's start practicing, 
you could ask me question first. Remember, I want you to strictly correct 
my grammar mistakes, missing or incorrect accents, typos, and factual errors.

tomball

/*-[
#import <CommonCrypto/CommonHMAC.h>
]-*/;

class HashTest {
  private static native String hash(String key, String data) /*-[
    const char *cKey  = [key cStringUsingEncoding:NSASCIIStringEncoding];
    const char *cData = [data cStringUsingEncoding:NSASCIIStringEncoding];

    unsigned char cHMAC[CC_SHA256_DIGEST_LENGTH];

tomball

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.