#ifndef _CRYPTO_MD5_H
  #define _CRYPTO_MD5_H
  
  #include <linux/types.h>
  
  #define MD5_DIGEST_SIZE		16
  #define MD5_HMAC_BLOCK_SIZE	64
  #define MD5_BLOCK_WORDS		16
  #define MD5_HASH_WORDS		4
  
  struct md5_state {
  	u32 hash[MD5_HASH_WORDS];
  	u32 block[MD5_BLOCK_WORDS];
  	u64 byte_count;
  };
  
  #endif