Vol 3, Part H: 3.6.2 Encryption Information message. More...

#include <SMPTypes.hpp>

Inheritance diagram for direct_bt::SMPEncInfoMsg:

Collaboration diagram for direct_bt::SMPEncInfoMsg:

Public Member Functions
	SMPEncInfoMsg (const uint8_t *source, const jau::nsize_t length)

	SMPEncInfoMsg (const jau::uint128_t &long_term_key)

constexpr_cxx20 jau::nsize_t	getDataSize () const noexcept override
	Returns the required data size according to the specified packet, which should be within 0-22 or 64 octets. More...

constexpr jau::uint128_t	getLTK () const noexcept
	Returns the 128-bit Long Term Key (16 octets) More...

constexpr_cxx20 std::string	getName () const noexcept override

Public Member Functions inherited from direct_bt::SMPEncKeyByteStream
	SMPEncKeyByteStream (const uint8_t *source, const jau::nsize_t size)
	Persistent memory, w/ ownership . More...

	SMPEncKeyByteStream (const Opcode opc, const jau::nsize_t size)
	Persistent memory, w/ ownership . More...

virtual	~SMPEncKeyByteStream () noexcept

Public Member Functions inherited from direct_bt::SMPPDUMsg
	SMPPDUMsg (const uint8_t *source, const jau::nsize_t size)
	Persistent memory, w/ ownership . More...

	SMPPDUMsg (const Opcode opc, const jau::nsize_t size)
	Persistent memory, w/ ownership . More...

virtual	~SMPPDUMsg () noexcept

constexpr uint64_t	getTimestamp () const noexcept

constexpr Opcode	getOpcode () const noexcept
	SMP Command Codes Vol 3, Part H (SM): 3.3. More...

constexpr jau::nsize_t	getPDUParamSize () const noexcept
	Returns the actual PDU size less one octet for the opcode, which should result in 0-22 octets or 64 octets. More...

constexpr jau::nsize_t	getDataOffset () const noexcept
	Returns the octet offset to the data segment in this PDU including the mandatory opcode, i.e. More...

virtual std::string	toString () const noexcept

Protected Member Functions
std::string	valueString () const noexcept override

Protected Member Functions inherited from direct_bt::SMPPDUMsg
void	checkOpcode (const Opcode expected) const

void	checkOpcode (const Opcode exp1, const Opcode exp2) const

virtual std::string	baseString () const noexcept

Additional Inherited Members
Public Types inherited from direct_bt::SMPPDUMsg
enum	Opcode : uint8_t { Opcode::UNDEFINED = 0x00, Opcode::PAIRING_REQUEST = 0x01, Opcode::PAIRING_RESPONSE = 0x02, Opcode::PAIRING_CONFIRM = 0x03, Opcode::PAIRING_RANDOM = 0x04, Opcode::PAIRING_FAILED = 0x05, Opcode::ENCRYPTION_INFORMATION = 0x06, Opcode::MASTER_IDENTIFICATION = 0x07, Opcode::IDENTITY_INFORMATION = 0x08, Opcode::IDENTITY_ADDRESS_INFORMATION = 0x09, Opcode::SIGNING_INFORMATION = 0x0A, Opcode::SECURITY_REQUEST = 0x0B, Opcode::PAIRING_PUBLIC_KEY = 0x0C, Opcode::PAIRING_DHKEY_CHECK = 0x0D, Opcode::PAIRING_KEYPRESS_NOTIFICATION = 0x0E }
	SMP Command Codes Vol 3, Part H (SM): 3.3. More...

Static Public Member Functions inherited from direct_bt::SMPPDUMsg
static constexpr uint8_t	number (const Opcode rhs) noexcept

static std::string	getOpcodeString (const Opcode opc) noexcept

static std::unique_ptr< const SMPPDUMsg >	getSpecialized (const uint8_t *buffer, jau::nsize_t const buffer_size) noexcept
	Return a newly created specialized instance pointer to base class. More...

template<class T >
static T *	clone (const T &source) noexcept
	Clone template for convenience, based on derived class's copy-constructor. More...

Protected Attributes inherited from direct_bt::SMPPDUMsg
POctets	pdu
	actual received PDU More...

uint64_t	ts_creation
	creation timestamp in milliseconds More...

Detailed Description

Vol 3, Part H: 3.6.2 Encryption Information message.

Vol 3 (Host), Part H (SM): 3 (SMP), 3.6 SECURITY IN BLUETOOTH LOW ENERGY
Vol 3 (Host), Part H (SM): 3 (SMP), 3.6.1 Key distribution and generation
Vol 3 (Host), Part H (SM): 2 (SM), 2.4.1 Definition of keys and values

Opcode::ENCRYPTION_INFORMATION

[uint8_t opcode]
jau::uint128_t long_term_key

Message is used in the LE legacy pairing Transport Specific Key Distribution to distribute Long Term Key (LTK) that is used when encrypting future connections.

The message shall only be sent when the link has been encrypted or re-encrypted using the generated LTK.

Legacy: #1 in distribution, first value.

Notable: No endian wise conversion shall occur on this data, since the encryption values are interpreted as a byte stream.

Definition at line 1451 of file SMPTypes.hpp.

Constructor & Destructor Documentation

◆ SMPEncInfoMsg() [1/2]

direct_bt::SMPEncInfoMsg::SMPEncInfoMsg	(	const uint8_t *	source,
		const jau::nsize_t	length
	)

inline

Definition at line 1454 of file SMPTypes.hpp.

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◆ SMPEncInfoMsg() [2/2]

direct_bt::SMPEncInfoMsg::SMPEncInfoMsg ( const jau::uint128_t & long_term_key )

inline

Definition at line 1460 of file SMPTypes.hpp.

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Member Function Documentation

◆ getDataSize()

constexpr_cxx20 jau::nsize_t direct_bt::SMPEncInfoMsg::getDataSize ( ) const

inlineoverridevirtualnoexcept

Returns the required data size according to the specified packet, which should be within 0-22 or 64 octets.

See also: SMPPDUMsg::getPDUParamSize()

Reimplemented from direct_bt::SMPPDUMsg.

Definition at line 1466 of file SMPTypes.hpp.

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◆ getLTK()

constexpr jau::uint128_t direct_bt::SMPEncInfoMsg::getLTK ( ) const

inlineconstexprnoexcept

Returns the 128-bit Long Term Key (16 octets)

The generated LTK value being distributed, see Vol 3, Part H, 2.4.2.3 SM - LE legacy pairing - generation of LTK, EDIV and Rand.

Definition at line 1477 of file SMPTypes.hpp.

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◆ getName()

constexpr_cxx20 std::string direct_bt::SMPEncInfoMsg::getName ( ) const

inlineoverridevirtualnoexcept

Reimplemented from direct_bt::SMPPDUMsg.

Definition at line 1479 of file SMPTypes.hpp.

◆ valueString()

std::string direct_bt::SMPEncInfoMsg::valueString ( ) const

inlineoverrideprotectedvirtualnoexcept

Reimplemented from direct_bt::SMPPDUMsg.

Definition at line 1484 of file SMPTypes.hpp.

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

/usr/local/projects/direct_bt/api/direct_bt/SMPTypes.hpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SMPEncInfoMsg() [1/2]

◆ SMPEncInfoMsg() [2/2]

Member Function Documentation

◆ getDataSize()

◆ getLTK()

◆ getName()

◆ valueString()