#include <cKeyExDHM.h>

Inheritance diagram for GrayLib::cKeyExDHM:

Public Member Functions
	cKeyExDHM () noexcept

	~cKeyExDHM ()

bool	isKeyEx () const

bool	isKeyValid () const

virtual HRESULT	MakeKeyExParams (BYTE pOut, size_t nSizeOut, IRandomNoise pRandom) override

virtual HRESULT	ReadKeyEx (const BYTE pBuffer, const BYTE end) override

virtual HRESULT	ReadKeyPublic (const BYTE *pInput, size_t nSizeIn) override

HRESULT	MakePublicDHM (size_t nSizeX, BYTE pOutput, size_t nOutputSize, IRandomNoise pRandom)

HRESULT	MakePrivateDHM (BYTE pOutput, size_t nOutputSize, IRandomNoise *pRandom)

HRESULT	ReadFromBlock (const BYTE *dhmin, size_t dhminlen)

HRESULT	ReadFromFile (const FILECHAR_t *pszFilePath)

	UNITTEST_FRIEND (cKeyExDHM)

Public Member Functions inherited from GrayLib::cKeyExBase
virtual	~cKeyExBase ()

Public Attributes
size_t	m_len
	size(P) in chars More...

cBigUnsigned	m_P
	prime modulus. m_dhm_P More...

cBigInteger	m_G
	generator. m_dhm_G More...

cBigInteger	m_GX
	self = G^X mod P More...

cBigInteger	m_GY
	peer = G^Y mod P More...

cBigInteger	m_K
	key = GY^X mod P More...

cBigUnsigned	m_RP
	cached R^2 mod P More...

cBigInteger	m_Vi
	blinding value More...

cBigInteger	m_Vf
	un-blinding value More...

cBigInteger	m_XPrev
	previous X More...

Public Attributes inherited from GrayLib::cKeyExBase
cBigUnsigned	m_X
	secret value (private key) More...

Static Public Attributes
static const char *	k_pszPEM = "DH PARAMETERS"

static const char *	k_default_P
	InitSSL SetKeyExDHMParams default params for RFC5114. More...

static const char *	k_default_G
	DHM_RFC5114_MODP_1024_G. More...

Detailed Description

Key exchange DHM (Diffie-Hellman) (For RSA keys) for: SSL_KeyExchange_DHE_PSK, SSL_KeyExchange_DHE_RSA

RFC 2409 defines a number of standardized Diffie-Hellman groups that can be used. RFC 3526 defines a number of standardized Diffie-Hellman for IKE. RFC 5114 defines a number of standardized Diffie-Hellman groups that can be used.

Some are included here for convenience.

Included are: RFC 2409 6.2. 1024-bit MODP Group (Second Oakley Group) RFC 3526 3. 2048-bit MODP Group RFC 3526 4. 3072-bit MODP Group RFC 5114 2.1. 1024-bit MODP Group with 160-bit Prime Order Subgroup RFC 5114 2.2. 2048-bit MODP Group with 224-bit Prime Order Subgroup

Constructor & Destructor Documentation

◆ cKeyExDHM()

GrayLib::cKeyExDHM::cKeyExDHM ( )

inlinenoexcept

◆ ~cKeyExDHM()

GrayLib::cKeyExDHM::~cKeyExDHM ( )

inline

Free and clear the components of a DHM key

Member Function Documentation

◆ isKeyEx()

bool GrayLib::cKeyExDHM::isKeyEx ( ) const

inline

◆ isKeyValid()

bool GrayLib::cKeyExDHM::isKeyValid ( ) const

inline

◆ MakeKeyExParams()

HRESULT GrayLib::cKeyExDHM::MakeKeyExParams	(	BYTE *	pOut,
		size_t	nSizeOut,
		IRandomNoise *	pRandom
	)

overridevirtual

Setup and write the ServerKeyExchange parameters

pOut = destination buffer
nSizeOut = number of chars written
pRandom = RNG function
Note
This function assumes that this->P and this->G have already been properly set (for example using SetStr or SetBinary).

Returns
0 if successful, or <0 = error code

Setup and write the ServerKeyExchange parameters

Implements GrayLib::cKeyExBase.

◆ MakePrivateDHM()

HRESULT GrayLib::cKeyExDHM::MakePrivateDHM	(	BYTE *	pOutput,
		size_t *	nOutputSize,
		IRandomNoise *	pRandom
	)

Derive and export the shared secret (G^Y)^X mod P

pOutput = destination buffer
nOutputSize = on entry, must hold the size of the destination buffer on exit, holds the actual number of bytes written
pRandom = RNG function, for blinding purposes
Returns
0 if successful, or <0 = error code

Note
If non-NULL, pRandom is used to blind the input as countermeasure against timing attacks. Blinding is automatically used if and only if our secret value X is re-used and costs nothing otherwise, so it is recommended to always pass a non-NULL pRandom argument.

Premaster secret Derive and export the shared secret (G^Y)^X mod P

◆ MakePublicDHM()

HRESULT GrayLib::cKeyExDHM::MakePublicDHM	(	size_t	nSizeX,
		BYTE *	pOutput,
		size_t	nOutputSize,
		IRandomNoise *	pRandom
	)

Create own private value X and export G^X

nSizeX = private value size in bytes
pOutput = destination buffer
nOutputSize = must be equal to this->P.len
pRandom = RNG function
Returns
0 if successful, or <0 = error code

Create own private value X and export G^X MakeKeyPublic

◆ ReadFromBlock()

HRESULT GrayLib::cKeyExDHM::ReadFromBlock	(	const BYTE *	dhmin,
		size_t	dhminlen
	)

Parse DHM parameters

dhmin = input buffer
dhminlen = size of the buffer
Returns
0 if successful, or a specific DHM or PEM error code

Parse DHM parameters

◆ ReadFromFile()

HRESULT GrayLib::cKeyExDHM::ReadFromFile ( const FILECHAR_t * pszFilePath )

Load and parse DHM parameters

pszFilePath = filename to read the DHM Parameters from
Returns
0 if successful, or a specific DHM or PEM error code

◆ ReadKeyEx()

HRESULT GrayLib::cKeyExDHM::ReadKeyEx	(	const BYTE *	pBuffer,
		const BYTE *	end
	)

overridevirtual

Parse the ServerKeyExchange parameters

pBuffer = &(start of input buffer)
end = end of buffer
Returns
length if successful, or <0 = error code

Parse the ServerKeyExchange parameters

Implements GrayLib::cKeyExBase.

◆ ReadKeyPublic()

HRESULT GrayLib::cKeyExDHM::ReadKeyPublic	(	const BYTE *	pInput,
		size_t	nSizeIn
	)

overridevirtual

Import the peer's public value G^Y

pInput = input buffer
nSizeIn = size of buffer
Returns
0 if successful, or <0 = error code

Import the peer's public value G^Y

Implements GrayLib::cKeyExBase.

◆ UNITTEST_FRIEND()

GrayLib::cKeyExDHM::UNITTEST_FRIEND ( cKeyExDHM )

Member Data Documentation

◆ k_default_G

const char * GrayLib::cKeyExDHM::k_default_G

static

Initial value:

=
                "A4D1CBD5C3FD34126765A442EFB99905F8104DD258AC507F"
                "D6406CFF14266D31266FEA1E5C41564B777E690F5504F213"
                "160217B4B01B886A5E91547F9E2749F4D7FBD7D3B9A92EE1"
                "909D0D2263F80A76A6A24C087A091F531DBF0A0169B6A28A"
                "D662A4D18E73AFA32D779D5918D08BC8858F4DCEF97C2A24"
                "855E6EEB22B3B2E5"

DHM_RFC5114_MODP_1024_G.

◆ k_default_P

const char * GrayLib::cKeyExDHM::k_default_P

static

Initial value:

=       
                "B10B8F96A080E01DDE92DE5EAE5D54EC52C99FBCFB06A3C6"
                "9A6A9DCA52D23B616073E28675A23D189838EF1E2EE652C0"
                "13ECB4AEA906112324975C3CD49B83BFACCBDD7D90C4BD70"
                "98488E9C219A73724EFFD6FAE5644738FAA31A4FF55BCCC0"
                "A151AF5F0DC8B4BD45BF37DF365C1A65E68CFDA76D4DA708"
                "DF1FB2BC2E4A4371"

InitSSL SetKeyExDHMParams default params for RFC5114.

DHM_RFC5114_MODP_1024_P

◆ k_pszPEM

const char * GrayLib::cKeyExDHM::k_pszPEM = "DH PARAMETERS"

static

◆ m_G

cBigInteger GrayLib::cKeyExDHM::m_G

generator. m_dhm_G

◆ m_GX

cBigInteger GrayLib::cKeyExDHM::m_GX

self = G^X mod P

◆ m_GY

cBigInteger GrayLib::cKeyExDHM::m_GY

peer = G^Y mod P

◆ m_K

cBigInteger GrayLib::cKeyExDHM::m_K

key = GY^X mod P

◆ m_len

size_t GrayLib::cKeyExDHM::m_len

size(P) in chars

◆ m_P

cBigUnsigned GrayLib::cKeyExDHM::m_P

prime modulus. m_dhm_P

◆ m_RP

cBigUnsigned GrayLib::cKeyExDHM::m_RP

cached R^2 mod P

◆ m_Vf

cBigInteger GrayLib::cKeyExDHM::m_Vf

un-blinding value

◆ m_Vi

cBigInteger GrayLib::cKeyExDHM::m_Vi

blinding value

◆ m_XPrev

cBigInteger GrayLib::cKeyExDHM::m_XPrev

previous X

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

c:/Dennis/Source/Gray/GrayLib/include/KeyEx/cKeyExDHM.h
c:/Dennis/Source/Gray/GrayLib/src/KeyEx/cKeyExDHM.cpp

Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ cKeyExDHM()

◆ ~cKeyExDHM()

Member Function Documentation

◆ isKeyEx()

◆ isKeyValid()

◆ MakeKeyExParams()

◆ MakePrivateDHM()

◆ MakePublicDHM()

◆ ReadFromBlock()

◆ ReadFromFile()

◆ ReadKeyEx()

◆ ReadKeyPublic()

◆ UNITTEST_FRIEND()

Member Data Documentation

◆ k_default_G

◆ k_default_P

◆ k_pszPEM

◆ m_G

◆ m_GX

◆ m_GY

◆ m_K

◆ m_len

◆ m_P

◆ m_RP

◆ m_Vf

◆ m_Vi

◆ m_XPrev