Crypto++  8.8
Free C++ class library of cryptographic schemes
Public Types | Public Member Functions | List of all members
DL_PrivateKey_EC< EC > Class Template Reference

Elliptic Curve Discrete Log (DL) private key. More...

+ Inheritance diagram for DL_PrivateKey_EC< EC >:

Public Types

typedef EC::Point Element
 
- Public Types inherited from DL_PrivateKeyImpl< DL_GroupParameters_EC< EC > >
typedef GP::Element Element
 
- Public Types inherited from DL_PrivateKey< GP::Element >
typedef GP::Element Element
 
- Public Types inherited from DL_KeyImpl< PK, GP, O >
typedef GP GroupParameters
 

Public Member Functions

void Initialize (const DL_GroupParameters_EC< EC > &params, const Integer &x)
 Initialize an EC Private Key using {GP,x}. More...
 
void Initialize (const EC &ec, const Element &G, const Integer &n, const Integer &x)
 Initialize an EC Private Key using {EC,G,n,x}. More...
 
void Initialize (RandomNumberGenerator &rng, const DL_GroupParameters_EC< EC > &params)
 Create an EC private key. More...
 
void Initialize (RandomNumberGenerator &rng, const EC &ec, const Element &G, const Integer &n)
 Create an EC private key. More...
 
void BERDecodePrivateKey (BufferedTransformation &bt, bool parametersPresent, size_t size)
 
void DEREncodePrivateKey (BufferedTransformation &bt) const
 
- Public Member Functions inherited from DL_PrivateKeyImpl< DL_GroupParameters_EC< EC > >
bool Validate (RandomNumberGenerator &rng, unsigned int level) const
 Check this object for errors. More...
 
bool GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const
 Get a named value. More...
 
void AssignFrom (const NameValuePairs &source)
 Assign values to this object. More...
 
void GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &params)
 Generate a random key or crypto parameters. More...
 
bool SupportsPrecomputation () const
 Determines whether the object supports precomputation. More...
 
void Precompute (unsigned int precomputationStorage=16)
 Perform precomputation. More...
 
void LoadPrecomputation (BufferedTransformation &storedPrecomputation)
 Retrieve previously saved precomputation. More...
 
void SavePrecomputation (BufferedTransformation &storedPrecomputation) const
 Save precomputation for later use. More...
 
const DL_GroupParameters< Element > & GetAbstractGroupParameters () const
 Retrieves abstract group parameters. More...
 
DL_GroupParameters< Element > & AccessAbstractGroupParameters ()
 Retrieves abstract group parameters. More...
 
const IntegerGetPrivateExponent () const
 Retrieves the private exponent. More...
 
void SetPrivateExponent (const Integer &x)
 Sets the private exponent. More...
 
void BERDecodePrivateKey (BufferedTransformation &bt, bool, size_t)
 Decode privateKey part of privateKeyInfo. More...
 
void DEREncodePrivateKey (BufferedTransformation &bt) const
 Encode privateKey part of privateKeyInfo. More...
 
- Public Member Functions inherited from DL_PrivateKey< GP::Element >
void MakePublicKey (DL_PublicKey< GP::Element > &pub) const
 Initializes a public key from this key. More...
 
bool GetVoidValue (const char *name, const std::type_info &valueType, void *pValue) const
 Get a named value. More...
 
void AssignFrom (const NameValuePairs &source)
 Initialize or reinitialize this key. More...
 
- Public Member Functions inherited from DL_KeyImpl< PK, GP, O >
GetAlgorithmID () const
 
bool BERDecodeAlgorithmParameters (BufferedTransformation &bt)
 
bool DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
 
const GP & GetGroupParameters () const
 
GP & AccessGroupParameters ()
 

Detailed Description

template<class EC>
class DL_PrivateKey_EC< EC >

Elliptic Curve Discrete Log (DL) private key.

Template Parameters
ECelliptic curve field

Definition at line 209 of file eccrypto.h.

Member Function Documentation

◆ Initialize() [1/4]

template<class EC >
void DL_PrivateKey_EC< EC >::Initialize ( const DL_GroupParameters_EC< EC > &  params,
const Integer x 
)
inline

Initialize an EC Private Key using {GP,x}.

Parameters
paramsgroup parameters
xthe private exponent

This Initialize() function overload initializes a private key from existing parameters.

Definition at line 220 of file eccrypto.h.

◆ Initialize() [2/4]

template<class EC >
void DL_PrivateKey_EC< EC >::Initialize ( const EC &  ec,
const Element &  G,
const Integer n,
const Integer x 
)
inline

Initialize an EC Private Key using {EC,G,n,x}.

Parameters
ecthe elliptic curve
Gthe base point
nthe order of the base point
xthe private exponent

This Initialize() function overload initializes a private key from existing parameters.

Definition at line 229 of file eccrypto.h.

◆ Initialize() [3/4]

template<class EC >
void DL_PrivateKey_EC< EC >::Initialize ( RandomNumberGenerator rng,
const DL_GroupParameters_EC< EC > &  params 
)
inline

Create an EC private key.

Parameters
rnga RandomNumberGenerator derived class
paramsthe EC group parameters

This function overload of Initialize() creates a new private key because it takes a RandomNumberGenerator() as a parameter. If you have an existing keypair, then use one of the other Initialize() overloads.

Definition at line 238 of file eccrypto.h.

◆ Initialize() [4/4]

template<class EC >
void DL_PrivateKey_EC< EC >::Initialize ( RandomNumberGenerator rng,
const EC &  ec,
const Element &  G,
const Integer n 
)
inline

Create an EC private key.

Parameters
rnga RandomNumberGenerator derived class
ecthe elliptic curve
Gthe base point
nthe order of the base point

This function overload of Initialize() creates a new private key because it takes a RandomNumberGenerator() as a parameter. If you have an existing keypair, then use one of the other Initialize() overloads.

Definition at line 249 of file eccrypto.h.


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