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-rw-r--r--src/mbedTLS++/Sha1Checksum.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/mbedTLS++/Sha1Checksum.h b/src/mbedTLS++/Sha1Checksum.h
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+++ b/src/mbedTLS++/Sha1Checksum.h
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+
+// Sha1Checksum.h
+
+// Declares the cSha1Checksum class representing the SHA-1 checksum calculator
+
+
+
+
+
+#pragma once
+
+#include "mbedtls/sha1.h"
+
+
+
+
+
+/** Calculates a SHA1 checksum for data stream */
+class cSha1Checksum
+{
+public:
+ typedef Byte Checksum[20]; // The type used for storing the checksum
+
+ cSha1Checksum(void);
+
+ /** Adds the specified data to the checksum */
+ void Update(const Byte * a_Data, size_t a_Length);
+
+ /** Calculates and returns the final checksum */
+ void Finalize(Checksum & a_Output);
+
+ /** Returns true if the object is accepts more input data, false if Finalize()-d (need to Restart()) */
+ bool DoesAcceptInput(void) const { return m_DoesAcceptInput; }
+
+ /** Converts a raw 160-bit SHA1 digest into a Java Hex representation
+ According to http://wiki.vg/Protocol_Encryption
+ */
+ static void DigestToJava(const Checksum & a_Digest, AString & a_JavaOut);
+
+ /** Clears the current context and start a new checksum calculation */
+ void Restart(void);
+
+protected:
+ /** True if the object is accepts more input data, false if Finalize()-d (need to Restart()) */
+ bool m_DoesAcceptInput;
+
+ mbedtls_sha1_context m_Sha1;
+} ;
+
+
+
+