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32 lines
774 B
C++
32 lines
774 B
C++
// HmacSha1.h
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// Implements HMAC-SHA-1 (RFC2104, FIPS-198)
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#ifndef __CRYPTO_HMAC_SHA1_H
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#define __CRYPTO_HMAC_SHA1_H
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#include "Sha1Cls.h"
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namespace NCrypto {
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namespace NSha1 {
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// Use: SetKey(key, keySize); for () Update(data, size); FinalFull(mac);
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class CHmac
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{
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CContext _sha;
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CContext _sha2;
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public:
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void SetKey(const Byte *key, size_t keySize);
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void Update(const Byte *data, size_t dataSize) { _sha.Update(data, dataSize); }
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// Final() : mac is recommended to be aligned for 4 bytes
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// GetLoopXorDigest1() : mac is required to be aligned for 4 bytes
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// The caller can use: UInt32 mac[NSha1::kNumDigestWords] and typecast to (Byte *) and (void *);
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void Final(Byte *mac);
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void GetLoopXorDigest1(void *mac, UInt32 numIteration);
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};
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}}
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#endif
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