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author | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
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committer | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
commit | 48809d4e85c125814425c621d8d0d89f95405924 (patch) | |
tree | 1010fd16c4b1199f3d27dd726dda241a2bd29f83 /trunhash.h | |
parent | 025337a94aceb75d188149db70c2094673772816 (diff) | |
download | cryptopp-git-48809d4e85c125814425c621d8d0d89f95405924.tar.gz |
CRYPTOPP 5.6.3 RC6 checkin
Diffstat (limited to 'trunhash.h')
-rw-r--r-- | trunhash.h | 100 |
1 files changed, 52 insertions, 48 deletions
@@ -1,48 +1,52 @@ -#ifndef CRYPTOPP_TRUNHASH_H -#define CRYPTOPP_TRUNHASH_H - -#include "cryptlib.h" - -NAMESPACE_BEGIN(CryptoPP) - -class NullHash : public HashTransformation -{ -public: - void Update(const byte *input, size_t length) {} - unsigned int DigestSize() const {return 0;} - void TruncatedFinal(byte *digest, size_t digestSize) {} - bool TruncatedVerify(const byte *digest, size_t digestLength) {return true;} -}; - -//! construct new HashModule with smaller DigestSize() from existing one -template <class T> -class TruncatedHashTemplate : public HashTransformation -{ -public: - TruncatedHashTemplate(T hm, unsigned int digestSize) - : m_hm(hm), m_digestSize(digestSize) {} - TruncatedHashTemplate(const byte *key, size_t keyLength, unsigned int digestSize) - : m_hm(key, keyLength), m_digestSize(digestSize) {} - TruncatedHashTemplate(size_t digestSize) - : m_digestSize(digestSize) {} - - void Restart() - {m_hm.Restart();} - void Update(const byte *input, size_t length) - {m_hm.Update(input, length);} - unsigned int DigestSize() const {return m_digestSize;} - void TruncatedFinal(byte *digest, size_t digestSize) - {m_hm.TruncatedFinal(digest, digestSize);} - bool TruncatedVerify(const byte *digest, size_t digestLength) - {return m_hm.TruncatedVerify(digest, digestLength);} - -private: - T m_hm; - unsigned int m_digestSize; -}; - -typedef TruncatedHashTemplate<HashTransformation &> TruncatedHashModule; - -NAMESPACE_END - -#endif +#ifndef CRYPTOPP_TRUNHASH_H
+#define CRYPTOPP_TRUNHASH_H
+
+#include "cryptlib.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+class NullHash : public HashTransformation
+{
+public:
+ void Update(const byte *input, size_t length)
+ {CRYPTOPP_UNUSED(input);CRYPTOPP_UNUSED(length);}
+ unsigned int DigestSize() const
+ {return 0;}
+ void TruncatedFinal(byte *digest, size_t digestSize)
+ {CRYPTOPP_UNUSED(digest);CRYPTOPP_UNUSED(digestSize);}
+ bool TruncatedVerify(const byte *digest, size_t digestLength)
+ {CRYPTOPP_UNUSED(digest);CRYPTOPP_UNUSED(digestLength);return true;}
+};
+
+//! construct new HashModule with smaller DigestSize() from existing one
+template <class T>
+class TruncatedHashTemplate : public HashTransformation
+{
+public:
+ TruncatedHashTemplate(T hm, unsigned int digestSize)
+ : m_hm(hm), m_digestSize(digestSize) {}
+ TruncatedHashTemplate(const byte *key, size_t keyLength, unsigned int digestSize)
+ : m_hm(key, keyLength), m_digestSize(digestSize) {}
+ TruncatedHashTemplate(size_t digestSize)
+ : m_digestSize(digestSize) {}
+
+ void Restart()
+ {m_hm.Restart();}
+ void Update(const byte *input, size_t length)
+ {m_hm.Update(input, length);}
+ unsigned int DigestSize() const {return m_digestSize;}
+ void TruncatedFinal(byte *digest, size_t digestSize)
+ {m_hm.TruncatedFinal(digest, digestSize);}
+ bool TruncatedVerify(const byte *digest, size_t digestLength)
+ {return m_hm.TruncatedVerify(digest, digestLength);}
+
+private:
+ T m_hm;
+ unsigned int m_digestSize;
+};
+
+typedef TruncatedHashTemplate<HashTransformation &> TruncatedHashModule;
+
+NAMESPACE_END
+
+#endif
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