53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
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// Sha1Checksum.h
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// Declares the cSha1Checksum class representing the SHA-1 checksum calculator
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#pragma once
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#include "polarssl/sha1.h"
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/** Calculates a SHA1 checksum for data stream */
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class cSha1Checksum
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{
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public:
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typedef Byte Checksum[20]; // The type used for storing the checksum
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cSha1Checksum(void);
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/** Adds the specified data to the checksum */
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void Update(const Byte * a_Data, size_t a_Length);
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/** Calculates and returns the final checksum */
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void Finalize(Checksum & a_Output);
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/** Returns true if the object is accepts more input data, false if Finalize()-d (need to Restart()) */
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bool DoesAcceptInput(void) const { return m_DoesAcceptInput; }
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/** Converts a raw 160-bit SHA1 digest into a Java Hex representation
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According to http://wiki.vg/wiki/index.php?title=Protocol_Encryption&oldid=2802
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*/
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static void DigestToJava(const Checksum & a_Digest, AString & a_JavaOut);
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/** Clears the current context and start a new checksum calculation */
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void Restart(void);
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protected:
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/** True if the object is accepts more input data, false if Finalize()-d (need to Restart()) */
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bool m_DoesAcceptInput;
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sha1_context m_Sha1;
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} ;
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