CCrypter Class Reference

Encryption/decryption context with key information. More...

#include <crypter.h>

Public Member Functions
bool	SetKeyFromPassphrase (const SecureString &strKeyData, const std::vector< unsigned char > &chSalt, const unsigned int nRounds, const unsigned int nDerivationMethod)
bool	Encrypt (const CKeyingMaterial &vchPlaintext, std::vector< unsigned char > &vchCiphertext) const
bool	Decrypt (const std::vector< unsigned char > &vchCiphertext, CKeyingMaterial &vchPlaintext) const
bool	SetKey (const CKeyingMaterial &chNewKey, const std::vector< unsigned char > &chNewIV)
void	CleanKey ()
	CCrypter ()
	~CCrypter ()

Private Member Functions
int	BytesToKeySHA512AES (const std::vector< unsigned char > &chSalt, const SecureString &strKeyData, int count, unsigned char *key, unsigned char *iv) const

Private Attributes
std::vector< unsigned char, secure_allocator< unsigned char > >	vchKey
std::vector< unsigned char, secure_allocator< unsigned char > >	vchIV
bool	fKeySet

Friends
class	wallet_crypto::TestCrypter

Detailed Description

Encryption/decryption context with key information.

Definition at line 76 of file crypter.h.

Constructor & Destructor Documentation

CCrypter()

CCrypter::CCrypter ( )

inline

Definition at line 99 of file crypter.h.

References fKeySet, vchIV, vchKey, WALLET_CRYPTO_IV_SIZE, and WALLET_CRYPTO_KEY_SIZE.

~CCrypter()

CCrypter::~CCrypter ( )

inline

Definition at line 106 of file crypter.h.

References CleanKey().

Member Function Documentation

BytesToKeySHA512AES()

int CCrypter::BytesToKeySHA512AES ( const std::vector< unsigned char > &  chSalt, const SecureString &  strKeyData, int  count, unsigned char *  key, unsigned char *  iv  ) const

private

Definition at line 16 of file crypter.cpp.

References count, CSHA512::Finalize(), memcpy(), memory_cleanse(), CSHA512::OUTPUT_SIZE, CSHA512::Reset(), WALLET_CRYPTO_IV_SIZE, WALLET_CRYPTO_KEY_SIZE, and CSHA512::Write().

Referenced by SetKeyFromPassphrase().

CleanKey()

void CCrypter::CleanKey ( )

inline

Definition at line 92 of file crypter.h.

References fKeySet, memory_cleanse(), vchIV, and vchKey.

Referenced by ~CCrypter().

Decrypt()

bool CCrypter::Decrypt	(	const std::vector< unsigned char > &	vchCiphertext,
		CKeyingMaterial &	vchPlaintext
	)		const

Definition at line 92 of file crypter.cpp.

References AES256CBCDecrypt::Decrypt(), fKeySet, vchIV, and vchKey.

Referenced by CWallet::ChangeWalletPassphrase(), DecryptSecret(), TestCrypter::TestDecrypt(), and CWallet::Unlock().

Encrypt()

bool CCrypter::Encrypt	(	const CKeyingMaterial &	vchPlaintext,
		std::vector< unsigned char > &	vchCiphertext
	)		const

Definition at line 74 of file crypter.cpp.

References AES_BLOCKSIZE, AES256CBCEncrypt::Encrypt(), fKeySet, vchIV, and vchKey.

Referenced by CWallet::ChangeWalletPassphrase(), EncryptSecret(), CWallet::EncryptWallet(), and TestCrypter::TestEncryptSingle().

SetKey()

bool CCrypter::SetKey	(	const CKeyingMaterial &	chNewKey,
		const std::vector< unsigned char > &	chNewIV
	)

Definition at line 62 of file crypter.cpp.

References fKeySet, memcpy(), vchIV, vchKey, WALLET_CRYPTO_IV_SIZE, and WALLET_CRYPTO_KEY_SIZE.

Referenced by DecryptSecret(), and EncryptSecret().

SetKeyFromPassphrase()

bool CCrypter::SetKeyFromPassphrase	(	const SecureString &	strKeyData,
		const std::vector< unsigned char > &	chSalt,
		const unsigned int	nRounds,
		const unsigned int	nDerivationMethod
	)

Definition at line 42 of file crypter.cpp.

References BytesToKeySHA512AES(), fKeySet, memory_cleanse(), vchIV, vchKey, WALLET_CRYPTO_KEY_SIZE, and WALLET_CRYPTO_SALT_SIZE.

Referenced by BOOST_AUTO_TEST_CASE(), CWallet::ChangeWalletPassphrase(), CWallet::EncryptWallet(), TestCrypter::TestPassphraseSingle(), and CWallet::Unlock().

Friends And Related Function Documentation

wallet_crypto::TestCrypter

friend class wallet_crypto::TestCrypter

friend

Definition at line 78 of file crypter.h.

Member Data Documentation

fKeySet

bool CCrypter::fKeySet

private

Definition at line 82 of file crypter.h.

Referenced by CCrypter(), CleanKey(), Decrypt(), Encrypt(), SetKey(), and SetKeyFromPassphrase().

vchIV

std::vector<unsigned char, secure_allocator<unsigned char> > CCrypter::vchIV

private

Definition at line 81 of file crypter.h.

Referenced by CCrypter(), CleanKey(), Decrypt(), Encrypt(), SetKey(), SetKeyFromPassphrase(), and TestCrypter::TestPassphraseSingle().

vchKey

std::vector<unsigned char, secure_allocator<unsigned char> > CCrypter::vchKey

private

Definition at line 80 of file crypter.h.

Referenced by CCrypter(), CleanKey(), Decrypt(), Encrypt(), SetKey(), SetKeyFromPassphrase(), and TestCrypter::TestPassphraseSingle().

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The documentation for this class was generated from the following files:

• src/wallet/crypter.h
• src/wallet/crypter.cpp