sha1MessageDigest Class Reference

Inheritance diagram for sha1MessageDigest:

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Collaboration diagram for sha1MessageDigest:

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List of all members.

Public Member Functions
	sha1MessageDigest ()
void	update (const byte_t b)
void	update (const string &s)
void	update (const byte_t *buffer, const unsigned long len)
void	update (const byte_t *buffer, const unsigned long offset, const unsigned long len)
void	finalize ()
void	finalize (const string &s)
void	finalize (const byte_t *buffer, const unsigned long len)
void	finalize (const byte_t *buffer, const unsigned long offset, const unsigned long len)
int	getDigestLength () const
const byte_t *	getDigest () const
void	reset ()
Protected Member Functions
void	init ()
Static Protected Member Functions
static void	transform (unsigned long state[5], const byte_t buffer[64])
Protected Attributes
unsigned long	m_state [5]
unsigned long	m_count [2]
byte_t	m_buffer [64]
byte_t	m_digest [20]

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Constructor & Destructor Documentation

sha1MessageDigest

(

)

References sha1MessageDigest::init().

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Member Function Documentation

void finalize	(	const byte_t *	buffer,
		const unsigned long	offset,
		const unsigned long	len
	)			[virtual]

Completes the hash computation by performing final operations such as padding.

This is equivalent to calling update() and then finalize().

Implements messageDigest.

References sha1MessageDigest::finalize().

void finalize	(	const byte_t *	buffer,
		const unsigned long	len
	)			[virtual]

Completes the hash computation by performing final operations such as padding.

This is equivalent to calling update() and then finalize().

Implements messageDigest.

References sha1MessageDigest::finalize(), and sha1MessageDigest::update().

void finalize

(

const string &

s

)

[virtual]

Completes the hash computation by performing final operations such as padding.

This is equivalent to calling update() and then finalize().

Implements messageDigest.

References sha1MessageDigest::finalize().

void finalize

(

)

[virtual]

Completes the hash computation by performing final operations such as padding.

Implements messageDigest.

References sha1MessageDigest::m_buffer, sha1MessageDigest::m_count, sha1MessageDigest::m_digest, sha1MessageDigest::m_state, and sha1MessageDigest::update().

Referenced by sha1MessageDigest::finalize().

const byte_t * getDigest

(

)

const [virtual]

Returns the hash, as computed by the algorithm.

You must call finalize() before using this function, or the hash will not be correct. To get the size of the returned array, call getDigestLength().

Returns:

computed hash

Implements messageDigest.

References sha1MessageDigest::m_digest.

int getDigestLength

(

)

const [virtual]

Returns the length of the hash.

This is the length of the array returned by getDigest().

Returns:

length of computed hash

Implements messageDigest.

void init

(

)

[protected]

References sha1MessageDigest::m_count, and sha1MessageDigest::m_state.

Referenced by sha1MessageDigest::reset(), and sha1MessageDigest::sha1MessageDigest().

void reset

(

)

[virtual]

Resets the algorithm to its initial state, so that you can compute a new hash using the same object.

Implements messageDigest.

References sha1MessageDigest::init().

static void transform	(	unsigned long	state[5],
		const byte_t	buffer[64]
	)			[static, protected]

Referenced by sha1MessageDigest::update().

void update	(	const byte_t *	buffer,
		const unsigned long	offset,
		const unsigned long	len
	)			[virtual]

Updates the digest using the specified array of bytes, starting at the specified offset.

Parameters:

	buffer	array of bytes
	offset	offset to start from in the array of bytes
	len	number of bytes to use, starting at offset

Implements messageDigest.

References sha1MessageDigest::update().

void update	(	const byte_t *	buffer,
		const unsigned long	len
	)			[virtual]

Updates the digest using the specified array of bytes.

Parameters:

	buffer	array of bytes
	len	number of bytes to use in the buffer

Implements messageDigest.

References sha1MessageDigest::m_buffer, sha1MessageDigest::m_count, sha1MessageDigest::m_state, and sha1MessageDigest::transform().

void update

(

const string &

s

)

[virtual]

Updates the digest using the specified string.

Parameters:

s

the string with which to update the digest.

Implements messageDigest.

References sha1MessageDigest::update().

void update

(

const byte_t

b

)

[virtual]

Updates the digest using the specified byte.

Parameters:

b

the byte with which to update the digest.

Implements messageDigest.

Referenced by sha1MessageDigest::finalize(), and sha1MessageDigest::update().

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Member Data Documentation

byte_t m_buffer[64] [protected]

Referenced by sha1MessageDigest::finalize(), and sha1MessageDigest::update().

unsigned long m_count[2] [protected]

Referenced by sha1MessageDigest::finalize(), sha1MessageDigest::init(), and sha1MessageDigest::update().

byte_t m_digest[20] [protected]

Referenced by sha1MessageDigest::finalize(), and sha1MessageDigest::getDigest().

unsigned long m_state[5] [protected]

Referenced by sha1MessageDigest::finalize(), sha1MessageDigest::init(), and sha1MessageDigest::update().

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

• sha1MessageDigest.hpp
• sha1MessageDigest.cpp