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211 lines
11 KiB
C++
211 lines
11 KiB
C++
// sha.h - originally written and placed in the public domain by Wei Dai
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/// \file sha.h
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/// \brief Classes for SHA-1 and SHA-2 family of message digests
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/// \since SHA1 since Crypto++ 1.0, SHA2 since Crypto++ 4.0, ARMv8 SHA since
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/// Crypto++ 6.0, Intel SHA since Crypto++ 6.0, Power8 SHA since Crypto++ 6.1
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#ifndef CRYPTOPP_SHA_H
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#define CRYPTOPP_SHA_H
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#include "config.h"
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#include "iterhash.h"
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// Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
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// error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
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#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
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# define CRYPTOPP_DISABLE_SHA_ASM 1
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#endif
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NAMESPACE_BEGIN(CryptoPP)
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/// \brief SHA-1 message digest
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/// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-1">SHA-1</a>
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/// \since SHA1 since Crypto++ 1.0, SHA2 since Crypto++ 4.0, ARMv8 SHA since
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/// Crypto++ 6.0, Intel SHA since Crypto++ 6.0
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class CRYPTOPP_DLL SHA1 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 20, SHA1>
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{
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public:
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/// \brief Initialize state array
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/// \param state the state of the hash
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/// \details InitState sets a state array to SHA1 initial values
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API InitState(HashWordType *state);
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/// \brief Operate the hash
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/// \param digest the state of the hash
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/// \param data the data to be digested
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/// \details Transform operates the hash on <tt>data</tt>. When the call is invoked
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/// <tt>digest</tt> holds initial state. Upon return <tt>digest</tt> holds the hash
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/// or updated state.
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array and data must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
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/// \brief The algorithm name
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/// \returns C-style string "SHA-1"
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CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-1";}
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// Algorithm class
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std::string AlgorithmProvider() const;
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protected:
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size_t HashMultipleBlocks(const HashWordType *input, size_t length);
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};
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/// \brief SHA-256 message digest
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/// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-256">SHA-256</a>
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/// \since SHA2 since Crypto++ 4.0, ARMv8 SHA since Crypto++ 6.0,
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/// Intel SHA since Crypto++ 6.0, Power8 SHA since Crypto++ 6.1
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class CRYPTOPP_DLL SHA256 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA256, 32, true>
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{
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public:
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/// \brief Initialize state array
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/// \param state the state of the hash
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/// \details InitState sets a state array to SHA256 initial values
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API InitState(HashWordType *state);
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/// \brief Operate the hash
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/// \param digest the state of the hash
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/// \param data the data to be digested
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/// \details Transform operates the hash on <tt>data</tt>. When the call is invoked
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/// <tt>digest</tt> holds initial state. Upon return <tt>digest</tt> holds the hash
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/// or updated state.
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array and data must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
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/// \brief The algorithm name
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/// \returns C-style string "SHA-256"
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CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-256";}
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// Algorithm class
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std::string AlgorithmProvider() const;
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protected:
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size_t HashMultipleBlocks(const HashWordType *input, size_t length);
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};
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/// \brief SHA-224 message digest
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/// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-224">SHA-224</a>
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/// \since SHA2 since Crypto++ 4.0, ARMv8 SHA since Crypto++ 6.0,
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/// Intel SHA since Crypto++ 6.0, Power8 SHA since Crypto++ 6.1
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class CRYPTOPP_DLL SHA224 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA224, 28, true>
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{
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public:
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/// \brief Initialize state array
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/// \param state the state of the hash
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/// \details InitState sets a state array to SHA224 initial values
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API InitState(HashWordType *state);
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/// \brief Operate the hash
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/// \param digest the state of the hash
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/// \param data the data to be digested
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/// \details Transform operates the hash on <tt>data</tt>. When the call is invoked
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/// <tt>digest</tt> holds initial state. Upon return <tt>digest</tt> holds the hash
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/// or updated state.
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array and data must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data) {SHA256::Transform(digest, data);}
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/// \brief The algorithm name
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/// \returns C-style string "SHA-224"
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CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-224";}
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// Algorithm class
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std::string AlgorithmProvider() const;
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protected:
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size_t HashMultipleBlocks(const HashWordType *input, size_t length);
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};
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/// \brief SHA-512 message digest
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/// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-512">SHA-512</a>
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/// \since SHA2 since Crypto++ 4.0, Power8 SHA since Crypto++ 6.1
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class CRYPTOPP_DLL SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA512, 64, true>
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{
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public:
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/// \brief Initialize state array
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/// \param state the state of the hash
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/// \details InitState sets a state array to SHA512 initial values
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API InitState(HashWordType *state);
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/// \brief Operate the hash
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/// \param digest the state of the hash
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/// \param data the data to be digested
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/// \details Transform operates the hash on <tt>data</tt>. When the call is invoked
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/// <tt>digest</tt> holds initial state. Upon return <tt>digest</tt> holds the hash
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/// or updated state.
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array and data must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
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/// \brief The algorithm name
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/// \returns C-style string "SHA-512"
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CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-512";}
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// Algorithm class
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std::string AlgorithmProvider() const;
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};
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/// \brief SHA-384 message digest
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/// \sa <a href="http://www.weidai.com/scan-mirror/md.html#SHA-384">SHA-384</a>
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/// \since SHA2 since Crypto++ 4.0, Power8 SHA since Crypto++ 6.1
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class CRYPTOPP_DLL SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA384, 48, true>
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{
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public:
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/// \brief Initialize state array
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/// \param state the state of the hash
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/// \details InitState sets a state array to SHA384 initial values
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API InitState(HashWordType *state);
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/// \brief Operate the hash
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/// \param digest the state of the hash
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/// \param data the data to be digested
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/// \details Transform operates the hash on <tt>data</tt>. When the call is invoked
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/// <tt>digest</tt> holds initial state. Upon return <tt>digest</tt> holds the hash
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/// or updated state.
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/// \details Hashes which derive from IteratedHashWithStaticTransform provide static
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/// member functions InitState and Transform. External classes, like SEAL and MDC,
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/// can initialize state with a user provided key and operate the hash on the data
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/// with the user supplied state.
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/// \note On Intel platforms the state array and data must be 16-byte aligned for SSE2.
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static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data) {SHA512::Transform(digest, data);}
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/// \brief The algorithm name
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/// \returns C-style string "SHA-384"
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CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-384";}
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// Algorithm class
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std::string AlgorithmProvider() const;
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};
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NAMESPACE_END
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#endif
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