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Dahua ICC Open API SDK for Java

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package com.dahuatech.hutool.crypto.digest.mac;

import com.dahuatech.hutool.core.io.IoUtil;

import java.io.InputStream;

/**
 * MAC（Message Authentication Code）算法引擎
 *
 * @author Looly
 * @since 4.5.13
 */
public interface MacEngine {

  /**
   * 生成摘要
   *
   * @param data {@link InputStream} 数据流
   * @param bufferLength 缓存长度，不足1使用 {@link IoUtil#DEFAULT_BUFFER_SIZE} 做为默认值
   * @return 摘要bytes
   */
  byte[] digest(InputStream data, int bufferLength);
}