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InvertibleRSAFunction Class Reference

#include <rsa.h>

Inheritance diagram for InvertibleRSAFunction:

RSAFunction TrapdoorFunctionInverse PKCS8PrivateKey TrapdoorFunction X509PublicKey RandomizedTrapdoorFunctionInverse ASN1Key PrivateKey RandomizedTrapdoorFunction ASN1Key PublicKey ASN1CryptoMaterial GeneratableCryptoMaterial TrapdoorFunctionBounds ASN1CryptoMaterial CryptoMaterial ASN1Object CryptoMaterial CryptoMaterial ASN1Object CryptoMaterial NameValuePairs NameValuePairs NameValuePairs NameValuePairs List of all members.

Detailed Description

Definition at line 52 of file rsa.h.

Public Member Functions

void Initialize (RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e=17)
void Initialize (const Integer &n, const Integer &e, const Integer &d, const Integer &p, const Integer &q, const Integer &dp, const Integer &dq, const Integer &u)
void Initialize (const Integer &n, const Integer &e, const Integer &d)
 factor n given private exponent

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)

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

Integer CalculateInverse (RandomNumberGenerator &rng, const Integer &x) const
bool Validate (RandomNumberGenerator &rng, unsigned int level) const
 check this object for errors

void GenerateRandom (RandomNumberGenerator &rng, const NameValuePairs &alg)
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

void AssignFrom (const NameValuePairs &source)
 assign values from source to this object

const IntegerGetPrime1 () const
const IntegerGetPrime2 () const
const IntegerGetPrivateExponent () const
const IntegerGetModPrime1PrivateExponent () const
const IntegerGetModPrime2PrivateExponent () const
const IntegerGetMultiplicativeInverseOfPrime2ModPrime1 () const
void SetPrime1 (const Integer &p)
void SetPrime2 (const Integer &q)
void SetPrivateExponent (const Integer &d)
void SetModPrime1PrivateExponent (const Integer &dp)
void SetModPrime2PrivateExponent (const Integer &dq)
void SetMultiplicativeInverseOfPrime2ModPrime1 (const Integer &u)
void Initialize (const Integer &n, const Integer &e)
OID GetAlgorithmID () const
Integer ApplyFunction (const Integer &x) const
Integer PreimageBound () const
Integer ImageBound () const
const IntegerGetModulus () const
const IntegerGetPublicExponent () const
void SetModulus (const Integer &n)
void SetPublicExponent (const Integer &e)
Integer ApplyRandomizedFunction (RandomNumberGenerator &rng, const Integer &x) const
bool IsRandomized () const
virtual Integer MaxPreimage () const
virtual Integer MaxImage () const
virtual bool BERDecodeAlgorithmParameters (BufferedTransformation &bt)
virtual bool DEREncodeAlgorithmParameters (BufferedTransformation &bt) const
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

virtual bool SupportsPrecomputation () const
 whether this object supports precomputation

virtual void Precompute (unsigned int n)
 do precomputation

virtual void LoadPrecomputation (BufferedTransformation &storedPrecomputation)
 retrieve previously saved precomputation

virtual void SavePrecomputation (BufferedTransformation &storedPrecomputation) const
 save precomputation for later use

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
Integer CalculateRandomizedInverse (RandomNumberGenerator &rng, const Integer &x) const
bool IsRandomized () 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


Protected Member Functions

virtual void DEREncodeOptionalAttributes (BufferedTransformation &bt) const
virtual void BERDecodeOptionalAttributes (BufferedTransformation &bt)

Protected Attributes

Integer m_d
Integer m_p
Integer m_q
Integer m_dp
Integer m_dq
Integer m_u
Integer m_n
Integer m_e


Member Function Documentation

bool InvertibleRSAFunction::Validate RandomNumberGenerator rng,
unsigned int  level
const [virtual]
 

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

Reimplemented from RSAFunction.

Definition at line 232 of file rsa.cpp.

References Integer::IsOdd(), Integer::IsPositive(), Integer::One(), and Validate().

Referenced by Validate().

void InvertibleRSAFunction::GenerateRandom RandomNumberGenerator rng,
const NameValuePairs alg
[virtual]
 

parameters: (ModulusSize, PublicExponent (default 17))

Reimplemented from GeneratableCryptoMaterial.

Definition at line 107 of file rsa.cpp.

References Integer::GenerateRandom(), GenerateRandom(), NameValuePairs::GetIntValue(), NameValuePairs::GetValueWithDefault(), Integer::InverseMod(), Integer::IsEven(), and Integer::IsPositive().

Referenced by GenerateRandom().

void InvertibleRSAFunction::AssignFrom const NameValuePairs source  )  [virtual]
 

assign values from source to this object

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

Reimplemented from RSAFunction.

Definition at line 265 of file rsa.cpp.

References AssignFrom().

Referenced by AssignFrom().

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 49 of file simple.h.

References ASN1CryptoMaterial::Load().

Referenced by ASN1CryptoMaterial::Load().

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 1551 of file cryptlib.h.

virtual void CryptoMaterial::Precompute unsigned int  n  )  [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 in DL_GroupParameters< T >, DL_PrivateKeyImpl< GP >, DL_PublicKeyImpl< GP >, DL_GroupParameters< Integer >, DL_GroupParameters< typename EcPrecomputation< EC >::Element >, DL_PrivateKeyImpl< DL_GroupParameters_EC< EC > >, and DL_PublicKeyImpl< DL_GroupParameters_EC< EC > >.

Definition at line 975 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 258 of file cryptlib.h.

References NameValuePairs::GetIntValue().

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


The documentation for this class was generated from the following files:
Generated on Fri Aug 13 09:56:58 2004 for Crypto++ by doxygen 1.3.7