oln::utils::MD5 Class Reference

Class used to compute a MD5 digest. More...

#include <md5.hh>

Collaboration diagram for oln::utils::MD5:

[legend]List of all members.

Public Types
typedef ntg::int_u32	value_type
	Value to work on.
typedef ntg::type_traits< value_type >::storage_type	storage_type
	Representation type of value type.
Public Member Functions
	MD5 (buffer b)
	Constructor.
key	execute ()
	Compute the digest.
key	gen_key ()
	Generate the key.
Protected Member Functions
void	sav ()
	initialization of a MD5 algorithm step.
void	round1 ()
	Round 1 of the algorithm.
void	round2 ()
	Round 2 of the algorithm.
void	round3 ()
	Round 3 of the algorithm.
void	round4 ()
	Round 4 of the algorithm.
void	step ()
	A step of the algorithm.
template<class Fun> void	sub_step (const Fun &fun, storage_type &a, const storage_type &b, const storage_type &c, const storage_type &d, unsigned k, unsigned s, unsigned i)
	Sub step to update a register value.
void	gen_sub_key (std::vector< key::value_type > &v, storage_type x, unsigned base)
	Generate a sub part of the key.
Protected Attributes
buffer	buffer_
	The buffer to process.
std::vector< storage_type >	X
	Vector of 16 words.
std::vector< storage_type >	T
	Vector of 64 words.
unsigned	current_
	Current position in the buffer.
storage_type	aa
	Save of a.
storage_type	bb
	Save of b.
storage_type	cc
	Save of c.
storage_type	dd
	Save of d.
storage_type	a
	A register.
storage_type	b
	B register.
storage_type	c
	C register.
storage_type	d
	D register.
struct {
storage_type	operator() (const storage_type &x, const storage_type &y, const storage_type &z) const
}	F
	Functor for bit operations.
struct {
storage_type	operator() (const storage_type &x, const storage_type &y, const storage_type &z) const
}	G
	Functor for bit operations.
struct {
storage_type	operator() (const storage_type &x, const storage_type &y, const storage_type &z) const
}	H
	Functor for bit operations.
struct {
storage_type	operator() (const storage_type &x, const storage_type &y, const storage_type &z) const
}	I
	Functor for bit operations.

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Detailed Description

Class used to compute a MD5 digest.

Definition at line 44 of file md5.hh.

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Constructor & Destructor Documentation

oln::utils::MD5::MD5 (  buffer  b  )  [inline, explicit]

Constructor. Initialization from a buffer. The buffer to use. Definition at line 234 of file md5.hh.

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Member Function Documentation

key oln::utils::MD5::gen_key (   )  [inline]

Generate the key. Precondition: To avoid meaningless result, you should call execute before. Definition at line 465 of file md5.hh.

void oln::utils::MD5::gen_sub_key (  std::vector< key::value_type > &  v, storage_type  x, unsigned  base )  [inline, protected]

Generate a sub part of the key. v Vector of values (output). x Data to put in v. base Where to put x in v. Definition at line 452 of file md5.hh.

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Member Data Documentation

struct { ... } oln::utils::MD5::F [protected]

Functor for bit operations. F(X,Y,Z) = XY v not(X) Z

struct { ... } oln::utils::MD5::G [protected]

Functor for bit operations. G(X,Y,Z) = XZ v Y not(Z)

struct { ... } oln::utils::MD5::H [protected]

Functor for bit operations. H(X,Y,Z) = X xor Y xor Z

struct { ... } oln::utils::MD5::I [protected]

Functor for bit operations. I(X,Y,Z) = Y xor (X v not(Z))

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

• md5.hh

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