OID Class Reference

Object Identifier. More...

#include <asn.h>

Public Member Functions
	OID ()
	Construct an OID.
	OID (word32 v)
	Construct an OID.
	OID (BufferedTransformation &bt)
	Construct an OID.
OID &	operator+= (word32 rhs)
	Append a value to an OID.
void	DEREncode (BufferedTransformation &bt) const
	DER encode this OID.
void	BERDecode (BufferedTransformation &bt)
	BER decode an OID.
void	BERDecodeAndCheck (BufferedTransformation &bt) const
	BER decode an OID.
bool	Empty () const
	Determine if OID is empty.
const std::vector< word32 > &	GetValues () const
	Retrieve OID value array.
std::ostream &	Print (std::ostream &out) const
	Print an OID.

Friends
bool	operator== (const OID &lhs, const OID &rhs)
	Compare two OIDs for equality.
bool	operator!= (const OID &lhs, const OID &rhs)
	Compare two OIDs for inequality.
bool	operator< (const OID &lhs, const OID &rhs)
	Compare two OIDs for ordering.
bool	operator<= (const OID &lhs, const OID &rhs)
	Compare two OIDs for ordering.
bool	operator>= (const OID &lhs, const OID &rhs)
	Compare two OIDs for ordering.

Detailed Description

Object Identifier.

Definition at line 264 of file asn.h.

Constructor & Destructor Documentation

~OID()

virtual OID::~OID ( )

inlinevirtual

Definition at line 267 of file asn.h.

OID() [1/3]

OID::OID ( )

inline

Construct an OID.

Definition at line 270 of file asn.h.

OID() [2/3]

OID::OID ( word32  v )

inline

Construct an OID.

Parameters

v	value to initialize the OID

Definition at line 274 of file asn.h.

OID() [3/3]

OID::OID ( BufferedTransformation &  bt )

inline

Construct an OID.

Parameters

bt	BufferedTransformation object

Definition at line 278 of file asn.h.

Member Function Documentation

operator+=()

OID & OID::operator+= ( word32  rhs )

inline

Append a value to an OID.

Parameters

rhs	the value to append

Definition at line 284 of file asn.h.

DEREncode()

void OID::DEREncode

(

BufferedTransformation &

bt

)

const

DER encode this OID.

Parameters

bt	BufferedTransformation object

BERDecode()

void OID::BERDecode

(

BufferedTransformation &

bt

)

BER decode an OID.

Parameters

bt	BufferedTransformation object

BERDecodeAndCheck()

void OID::BERDecodeAndCheck

(

BufferedTransformation &

bt

)

const

BER decode an OID.

Parameters

bt	BufferedTransformation object

Exceptions

BERDecodeErr()

if decoded value doesn't match an expected OID

BERDecodeAndCheck() can be used to parse an OID and verify it matches an expected.

  BERSequenceDecoder key(bt);
  ...
  BERSequenceDecoder algorithm(key);
  GetAlgorithmID().BERDecodeAndCheck(algorithm);

Empty()

bool OID::Empty ( ) const

inline

Determine if OID is empty.

Returns

true if OID has 0 elements, false otherwise

Since

Crypto++ 8.0

Definition at line 311 of file asn.h.

GetValues()

const std::vector< word32 > & OID::GetValues ( ) const

inline

Retrieve OID value array.

Returns

OID value vector

Since

Crypto++ 8.0

Definition at line 318 of file asn.h.

Print()

std::ostream & OID::Print

(

std::ostream &

out

)

const

Print an OID.

Parameters

out	ostream object

Returns

ostream reference

Print() writes the OID in a customary format, like 1.2.840.113549.1.1.11. The caller is reposnsible to convert the OID to a friendly name, like sha256WithRSAEncryption.

Since

Crypto++ 8.3

Friends And Related Symbol Documentation

operator==

bool operator== ( const OID &  lhs, const OID &  rhs  )

friend

Compare two OIDs for equality.

Parameters

lhs	the first OID
rhs	the second OID

Returns

true if the OIDs are equal, false otherwise

operator!=

bool operator!= ( const OID &  lhs, const OID &  rhs  )

friend

Compare two OIDs for inequality.

Parameters

lhs	the first OID
rhs	the second OID

Returns

true if the OIDs are not equal, false otherwise

operator<

bool operator< ( const OID &  lhs, const OID &  rhs  )

friend

Compare two OIDs for ordering.

Parameters

lhs	the first OID
rhs	the second OID

Returns

true if the first OID is less than the second OID, false otherwise

operator<() calls std::lexicographical_compare() on each element in the array of values.

operator<=

bool operator<= ( const OID &  lhs, const OID &  rhs  )

friend

Compare two OIDs for ordering.

Parameters

lhs	the first OID
rhs	the second OID

Returns

true if the first OID is less than or equal to the second OID, false otherwise

operator<=() is implemented in terms of operator==() and operator<().

Since

Crypto++ 8.3

operator>=

bool operator>= ( const OID &  lhs, const OID &  rhs  )

friend

Compare two OIDs for ordering.

Parameters

lhs	the first OID
rhs	the second OID

Returns

true if the first OID is greater than or equal to the second OID, false otherwise

operator>=() is implemented in terms of operator<().

Since

Crypto++ 8.3

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

• asn.h