Public Types | Public Member Functions | Static Public Member Functions

DL_PublicKey_EC< EC > Class Template Reference

EC public key. More...

#include <eccrypto.h>

Inheritance diagram for DL_PublicKey_EC< EC >:
DL_PublicKeyImpl< DL_GroupParameters_EC< EC > > DL_PublicKey< DL_GroupParameters_EC< EC >::Element > DL_KeyImpl< X509PublicKey, DL_GroupParameters_EC< EC > > DL_Key< DL_GroupParameters_EC< EC >::Element > X509PublicKey ASN1CryptoMaterial< PublicKey > ASN1Object PublicKey CryptoMaterial NameValuePairs

List of all members.

Public Types

typedef EC::Point Element
typedef DL_GroupParameters_EC
< EC >::Element 
Element
typedef DL_GroupParameters_EC< EC > GroupParameters

Public Member Functions

void Initialize (const DL_GroupParameters_EC< EC > &params, const Element &Q)
void Initialize (const EC &ec, const Element &G, const Integer &n, const Element &Q)
void BERDecodePublicKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
 decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
void DEREncodePublicKey (BufferedTransformation &bt) const
 encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
bool Validate (RandomNumberGenerator &rng, unsigned int level) const
 check this object for errors
bool GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const
 to be implemented by derived classes, users should use one of the above functions instead
bool GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const
void AssignFrom (const NameValuePairs &source)
 assign values from source to this object
void AssignFrom (const NameValuePairs &source)
bool SupportsPrecomputation () const
void Precompute (unsigned int precomputationStorage=16)
 do precomputation
void LoadPrecomputation (BufferedTransformation &storedPrecomputation)
 retrieve previously saved precomputation
void SavePrecomputation (BufferedTransformation &storedPrecomputation) const
 save precomputation for later use
const DL_GroupParameters
< Element > & 
GetAbstractGroupParameters () const
virtual const
DL_GroupParameters
< DL_GroupParameters_EC< EC >
::Element > & 
GetAbstractGroupParameters () const =0
DL_GroupParameters< Element > & AccessAbstractGroupParameters ()
virtual DL_GroupParameters
< DL_GroupParameters_EC< EC >
::Element > & 
AccessAbstractGroupParameters ()=0
const
DL_FixedBasePrecomputation
< Element > & 
GetPublicPrecomputation () const
virtual const
DL_FixedBasePrecomputation
< DL_GroupParameters_EC< EC >
::Element > & 
GetPublicPrecomputation () const =0
DL_FixedBasePrecomputation
< Element > & 
AccessPublicPrecomputation ()
virtual
DL_FixedBasePrecomputation
< DL_GroupParameters_EC< EC >
::Element > & 
AccessPublicPrecomputation ()=0
bool operator== (const DL_PublicKeyImpl< DL_GroupParameters_EC< EC > > &rhs) const
virtual const Element & GetPublicElement () const
virtual void SetPublicElement (const Element &y)
virtual Element ExponentiatePublicElement (const Integer &exponent) const
virtual Element CascadeExponentiateBaseAndPublicElement (const Integer &baseExp, const Integer &publicExp) const
OID GetAlgorithmID () const
bool BERDecodeAlgorithmParameters (BufferedTransformation &bt)
bool DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
const DL_GroupParameters_EC< EC > & GetGroupParameters () const
DL_GroupParameters_EC< EC > & AccessGroupParameters ()
void BERDecode (BufferedTransformation &bt)
virtual void BERDecode (BufferedTransformation &bt)=0
 decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)
void DEREncode (BufferedTransformation &bt) const
virtual void DEREncode (BufferedTransformation &bt) const =0
 encode this object into a BufferedTransformation, using DER (Distinguished Encoding Rules)
void Save (BufferedTransformation &bt) const
 save key into a BufferedTransformation
void Load (BufferedTransformation &bt)
 load key from a BufferedTransformation
virtual void BEREncode (BufferedTransformation &bt) const
 encode this object into a BufferedTransformation, using BER
virtual void ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const
 throws InvalidMaterial if this object fails Validate() test
void DoQuickSanityCheck () const
template<class T >
bool GetThisObject (T &object) const
 get a copy of this object or a subobject of it
template<class T >
bool GetThisPointer (T *&p) const
 get a pointer to this object, as a pointer to T
template<class T >
bool GetValue (const char *name, T &value) const
 get a named value, returns true if the name exists
template<class T >
GetValueWithDefault (const char *name, T defaultValue) const
 get a named value, returns the default if the name doesn't exist
std::string GetValueNames () const
 get a list of value names that can be retrieved
bool GetIntValue (const char *name, int &value) const
 get a named value with type int
int GetIntValueWithDefault (const char *name, int defaultValue) const
 get a named value with type int, with default
template<class T >
void GetRequiredParameter (const char *className, const char *name, T &value) const
void GetRequiredIntParameter (const char *className, const char *name, int &value) const

Static Public Member Functions

static void ThrowIfTypeMismatch (const char *name, const std::type_info &stored, const std::type_info &retrieving)
 used by derived classes to check for type mismatch

Detailed Description

template<class EC>
class DL_PublicKey_EC< EC >

EC public key.

Definition at line 142 of file eccrypto.h.


Member Function Documentation

bool DL_PublicKeyImpl< DL_GroupParameters_EC< EC > >::Validate ( RandomNumberGenerator rng,
unsigned int  level 
) const [inline, virtual, inherited]

check this object for errors

Parameters:
level denotes the level of thoroughness: 0 - using this object won't cause a crash or exception (rng is ignored) 1 - this object will probably function (encrypt, sign, etc.) correctly (but may not check for weak keys and such) 2 - make sure this object will function correctly, and do reasonable security checks 3 - do checks that may take a long time
Returns:
true if the tests pass

Implements CryptoMaterial.

Definition at line 845 of file pubkey.h.

void DL_PublicKeyImpl< DL_GroupParameters_EC< EC > >::AssignFrom ( const NameValuePairs source  )  [inline, virtual, inherited]

assign values from source to this object

Note:
This function can be used to create a public key from a private key.

Implements CryptoMaterial.

Definition at line 857 of file pubkey.h.

bool DL_PublicKeyImpl< DL_GroupParameters_EC< EC > >::SupportsPrecomputation (  )  const [inline, virtual, inherited]
Returns:
whether this object supports precomputation

Reimplemented from CryptoMaterial.

Definition at line 862 of file pubkey.h.

void DL_PublicKeyImpl< DL_GroupParameters_EC< EC > >::Precompute ( unsigned int  n = 16  )  [inline, virtual, inherited]

do precomputation

The exact semantics of Precompute() is varies, but typically it means calculate a table of n objects that can be used later to speed up computation.

Reimplemented from CryptoMaterial.

Definition at line 864 of file pubkey.h.

void ASN1CryptoMaterial< PublicKey >::Load ( BufferedTransformation bt  )  [inline, virtual, inherited]

Reimplemented from CryptoMaterial.

Definition at line 240 of file asn.h.

virtual void ASN1Object::BEREncode ( BufferedTransformation bt  )  const [inline, virtual, inherited]

encode this object into a BufferedTransformation, using BER

this may be useful if DEREncode() would be too inefficient

Definition at line 1644 of file cryptlib.h.

bool NameValuePairs::GetIntValue ( const char *  name,
int &  value 
) const [inline, inherited]

get a named value with type int

used to ensure we don't accidentally try to get an unsigned int or some other type when we mean int (which is the most common case)

Definition at line 282 of file cryptlib.h.

Referenced by InvertibleRWFunction::GenerateRandom(), InvertibleRSAFunction::GenerateRandom(), InvertibleRabinFunction::GenerateRandom(), InvertibleLUCFunction::GenerateRandom(), DL_GroupParameters_IntegerBased::GenerateRandom(), DL_GroupParameters_DSA::GenerateRandom(), and InvertibleESIGNFunction::GenerateRandom().


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