md5_hash.h

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// Code by: B-Con (http://b-con.us)
// Released under the GNU GPL
// MD5 Hash Digest implementation (little endian byte order)
 
#ifndef __MD5_HASH_H
#define __MD5_HASH_H
 
#include <cstdint>
#include <string>
 
class MD5_HASH
{
 
public:
    MD5_HASH();
    MD5_HASH( const MD5_HASH& aOther );
 
    ~MD5_HASH();
 
    void Init();
    void Hash ( uint8_t *data, uint32_t length );
    void Hash ( int value );
    void Finalize();
    bool IsValid() const { return m_valid; };
 
    void SetValid( bool aValid ) { m_valid = aValid; }
 
    MD5_HASH& operator=( const MD5_HASH& aOther );
 
    bool operator==( const MD5_HASH& aOther ) const;
    bool operator!=( const MD5_HASH& aOther ) const;

    std::string Format( bool aCompactForm = false );
 
private:
    struct MD5_CTX {
       uint8_t data[64];
       uint32_t datalen;
       uint32_t bitlen[2];
       uint32_t state[4];
    };
 
    void md5_transform(MD5_CTX *ctx, uint8_t data[]);
    void md5_init(MD5_CTX *ctx);
    void md5_update(MD5_CTX *ctx, uint8_t data[], uint32_t len);
    void md5_final(MD5_CTX *ctx, uint8_t hash[]);
 
    bool m_valid;
    MD5_CTX m_ctx;
    uint8_t m_hash[16];
};
 
#endif