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// fips140.h - originally written and placed in the public domain by Wei Dai
/// \file fips140.h
/// \brief Classes and functions for the FIPS 140-2 validated library
/// \details The FIPS validated library is only available on Windows as a DLL. Once compiled,
/// the library is always in FIPS mode contingent upon successful execution of
/// DoPowerUpSelfTest() or DoDllPowerUpSelfTest().
/// \sa <A HREF="http://cryptopp.com/wiki/Visual_Studio">Visual Studio</A> and
/// <A HREF="http://cryptopp.com/wiki/config.h">config.h</A> on the Crypto++ wiki.
#ifndef CRYPTOPP_FIPS140_H
#define CRYPTOPP_FIPS140_H
#include "cryptlib.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
/// Exception thrown when a crypto algorithm is used after a self test fails
/// \details The self tests for an algorithm are performed by Algortihm class
/// when CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 is defined.
class CRYPTOPP_DLL SelfTestFailure : public Exception
{
public:
explicit SelfTestFailure(const std::string &s) : Exception(OTHER_ERROR, s) {}
};
/// \brief Determines whether the library provides FIPS validated cryptography
/// \returns true if FIPS 140-2 validated features were enabled at compile time.
/// \details true if FIPS 140-2 validated features were enabled at compile time,
/// false otherwise.
/// \note FIPS mode is enabled at compile time. A program or other module cannot
/// arbitrarily enter or exit the mode.
CRYPTOPP_DLL bool CRYPTOPP_API FIPS_140_2_ComplianceEnabled();
/// \brief Status of the power-up self test
enum PowerUpSelfTestStatus {
/// \brief The self tests have not been performed.
POWER_UP_SELF_TEST_NOT_DONE,
/// \brief The self tests were executed via DoPowerUpSelfTest() or
/// DoDllPowerUpSelfTest(), but the result was failure.
POWER_UP_SELF_TEST_FAILED,
/// \brief The self tests were executed via DoPowerUpSelfTest() or
/// DoDllPowerUpSelfTest(), and the result was success.
POWER_UP_SELF_TEST_PASSED
};
/// \brief Performs the power-up self test
/// \param moduleFilename the fully qualified name of the module
/// \param expectedModuleMac the expected MAC of the components protected by the integrity check
/// \details Performs the power-up self test, and sets the self test status to
/// POWER_UP_SELF_TEST_PASSED or POWER_UP_SELF_TEST_FAILED.
/// \details The self tests for an algorithm are performed by the Algortihm class
/// when CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 is defined.
CRYPTOPP_DLL void CRYPTOPP_API DoPowerUpSelfTest(const char *moduleFilename, const byte *expectedModuleMac);
/// \brief Performs the power-up self test on the DLL
/// \details Performs the power-up self test using the filename of this DLL and the
/// embedded module MAC, and sets the self test status to POWER_UP_SELF_TEST_PASSED or
/// POWER_UP_SELF_TEST_FAILED.
/// \details The self tests for an algorithm are performed by the Algortihm class
/// when CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 is defined.
CRYPTOPP_DLL void CRYPTOPP_API DoDllPowerUpSelfTest();
/// \brief Sets the power-up self test status to POWER_UP_SELF_TEST_FAILED
/// \details Sets the power-up self test status to POWER_UP_SELF_TEST_FAILED to simulate failure.
CRYPTOPP_DLL void CRYPTOPP_API SimulatePowerUpSelfTestFailure();
/// \brief Provides the current power-up self test status
/// \returns the current power-up self test status
CRYPTOPP_DLL PowerUpSelfTestStatus CRYPTOPP_API GetPowerUpSelfTestStatus();
#ifndef CRYPTOPP_DOXYGEN_PROCESSING
typedef PowerUpSelfTestStatus (CRYPTOPP_API * PGetPowerUpSelfTestStatus)();
#endif
/// \brief Class object that calculates the MAC on the module
/// \returns the MAC for the module
CRYPTOPP_DLL MessageAuthenticationCode * CRYPTOPP_API NewIntegrityCheckingMAC();
/// \brief Verifies the MAC on the module
/// \param moduleFilename the fully qualified name of the module
/// \param expectedModuleMac the expected MAC of the components protected by the integrity check
/// \param pActualMac the actual MAC of the components calculated by the integrity check
/// \param pMacFileLocation the offest of the MAC in the PE/PE+ module
/// \returns true if the MAC is valid, false otherwise
CRYPTOPP_DLL bool CRYPTOPP_API IntegrityCheckModule(const char *moduleFilename, const byte *expectedModuleMac, SecByteBlock *pActualMac = NULLPTR, unsigned long *pMacFileLocation = NULLPTR);
#ifndef CRYPTOPP_DOXYGEN_PROCESSING
// this is used by Algorithm constructor to allow Algorithm objects to be constructed for the self test
bool PowerUpSelfTestInProgressOnThisThread();
void SetPowerUpSelfTestInProgressOnThisThread(bool inProgress);
void SignaturePairwiseConsistencyTest(const PK_Signer &signer, const PK_Verifier &verifier);
void EncryptionPairwiseConsistencyTest(const PK_Encryptor &encryptor, const PK_Decryptor &decryptor);
void SignaturePairwiseConsistencyTest_FIPS_140_Only(const PK_Signer &signer, const PK_Verifier &verifier);
void EncryptionPairwiseConsistencyTest_FIPS_140_Only(const PK_Encryptor &encryptor, const PK_Decryptor &decryptor);
#endif
/// \brief The placeholder used prior to embedding the actual MAC in the module.
/// \details After the DLL is built but before it is MAC'd, the string CRYPTOPP_DUMMY_DLL_MAC
/// is used as a placeholder for the actual MAC. A post-build step is performed which calculates
/// the MAC of the DLL and embeds it in the module. The actual MAC is written by the
/// <tt>cryptest.exe</tt> program using the <tt>mac_dll</tt> subcommand.
#define CRYPTOPP_DUMMY_DLL_MAC "MAC_51f34b8db820ae8"
NAMESPACE_END
#endif
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