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DL_PrivateKey_GFP< GP > Class Template Reference

#include <gfpcrypt.h>

Inheritance diagram for DL_PrivateKey_GFP< GP >:

DL_PrivateKeyImpl< GP > DL_PrivateKey< GP::Element > DL_KeyImpl< PKCS8PrivateKey, GP > DL_Key< GP::Element > PKCS8PrivateKey ASN1Key PrivateKey ASN1CryptoMaterial GeneratableCryptoMaterial ASN1Object CryptoMaterial CryptoMaterial NameValuePairs NameValuePairs List of all members.

Detailed Description

template<class GP>
class DL_PrivateKey_GFP< GP >

DL private key (in GF(p) groups).

Definition at line 230 of file gfpcrypt.h.

Public Types

typedef GP::Element Element
typedef GP GroupParameters

Public Member Functions

void Initialize (RandomNumberGenerator &rng, unsigned int modulusBits)
void Initialize (RandomNumberGenerator &rng, const Integer &p, const Integer &g)
void Initialize (RandomNumberGenerator &rng, const Integer &p, const Integer &q, const Integer &g)
void Initialize (const DL_GroupParameters_IntegerBased &params, const Integer &x)
void Initialize (const Integer &p, const Integer &g, const Integer &x)
void Initialize (const Integer &p, const Integer &q, const Integer &g, const Integer &x)
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
void AssignFrom (const NameValuePairs &source)
void GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &params)
 generate a random key or crypto parameters
bool SupportsPrecomputation () const
 whether this object supports precomputation
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
DL_GroupParameters< Element > & AccessAbstractGroupParameters ()
const IntegerGetPrivateExponent () const
void SetPrivateExponent (const Integer &x)
void BERDecodeKey (BufferedTransformation &bt)
 decode subjectPublicKey part of subjectPublicKeyInfo, or privateKey part of privateKeyInfo, without the BIT STRING or OCTET STRING header
void DEREncodeKey (BufferedTransformation &bt) const
 encode subjectPublicKey part of subjectPublicKeyInfo, or privateKey part of privateKeyInfo, without the BIT STRING or OCTET STRING header
void MakePublicKey (DL_PublicKey< GP::Element > &pub) const
OID GetAlgorithmID () const
bool BERDecodeAlgorithmParameters (BufferedTransformation &bt)
bool DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
const GP & GetGroupParameters () const
GP & AccessGroupParameters ()
void BERDecode (BufferedTransformation &bt)
 decode this object from a BufferedTransformation, using BER (Basic Encoding Rules)
void DEREncode (BufferedTransformation &bt) const
 encode this object into a BufferedTransformation, using DER (Distinguished Encoding Rules)
virtual void BERDecodeOptionalAttributes (BufferedTransformation &bt)
 decode optional attributes including context-specific tag
virtual void DEREncodeOptionalAttributes (BufferedTransformation &bt) const
 encode optional attributes including context-specific tag
virtual void BERDecodeKey2 (BufferedTransformation &bt, bool parametersPresent, unsigned int size)
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> 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
void GenerateRandomWithKeySize (RandomNumberGenerator &rng, unsigned int keySize)
 calls the above function with a NameValuePairs object that just specifies "KeySize"

Static Public Member Functions

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


Member Function Documentation

template<class GP>
bool DL_PrivateKeyImpl< GP >::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 776 of file pubkey.h.

template<class GP>
void DL_PrivateKeyImpl< GP >::GenerateRandom RandomNumberGenerator rng,
const NameValuePairs params
[inline, virtual, inherited]
 

generate a random key or crypto parameters

Exceptions:
KeyingErr if algorithm parameters are invalid, or if a key can't be generated (e.g., if this is a public key object)

Reimplemented from GeneratableCryptoMaterial.

Definition at line 799 of file pubkey.h.

template<class GP>
void DL_PrivateKeyImpl< GP >::Precompute unsigned int  precomputationStorage = 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 812 of file pubkey.h.

void PKCS8PrivateKey::BERDecodeOptionalAttributes BufferedTransformation bt  )  [virtual, inherited]
 

decode optional attributes including context-specific tag

/note default implementation stores attributes to be output in DEREncodeOptionalAttributes Definition at line 578 of file asn.cpp.

Referenced by PKCS8PrivateKey::BERDecode().

void ASN1CryptoMaterial::Load BufferedTransformation bt  )  [inline, virtual, inherited]
 

load key from a BufferedTransformation

Exceptions:
KeyingErr if decode fails
Note:
Generally does not check that the key is valid. Call ValidateKey() or ThrowIfInvalidKey() to check that.

Reimplemented from CryptoMaterial.

Definition at line 52 of file simple.h.

References ASN1Object::BERDecode().

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 1561 of file cryptlib.h.

Referenced by ASN1CryptoMaterial::Save().

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 278 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 file:
Generated on Wed Jul 21 19:15:48 2004 for Crypto++ by doxygen 1.3.7-20040704