RSA trapdoor function using the public key. More...
#include <rsa.h>
Inheritance diagram for RSAFunction_ISO:
Public Member Functions | |
| Integer | ApplyFunction (const Integer &x) const |
| Applies the trapdoor. | |
| Integer | PreimageBound () const |
| Returns the maximum size of a message before the trapdoor function is applied. | |
 Public Member Functions inherited from RSAFunction | |
| void | Initialize (const Integer &n, const Integer &e) |
| Initialize a RSA public key. | |
| OID | GetAlgorithmID () const |
| Retrieves the OID of the algorithm. | |
| void | BERDecodePublicKey (BufferedTransformation &bt, bool parametersPresent, size_t size) |
| Decode subjectPublicKey part of subjectPublicKeyInfo. | |
| void | DEREncodePublicKey (BufferedTransformation &bt) const |
| Encode subjectPublicKey part of subjectPublicKeyInfo. | |
| 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 |
| Get a named value. | |
| void | AssignFrom (const NameValuePairs &source) |
| Assign values to this object. | |
| Integer | ImageBound () const |
| Returns the maximum size of a representation after the trapdoor function is applied. | |
| const Integer & | GetModulus () const |
| const Integer & | GetPublicExponent () const |
| void | SetModulus (const Integer &n) |
| void | SetPublicExponent (const Integer &e) |
| Public Member Functions inherited from TrapdoorFunction | |
| Integer | ApplyRandomizedFunction (RandomNumberGenerator &rng, const Integer &x) const |
| Applies the trapdoor function. | |
| bool | IsRandomized () const |
| Determines if the encryption algorithm is randomized. | |
| Public Member Functions inherited from TrapdoorFunctionBounds | |
| virtual Integer | MaxPreimage () const |
| Returns the maximum size of a message before the trapdoor function is applied bound to a public key. | |
| virtual Integer | MaxImage () const |
| Returns the maximum size of a representation after the trapdoor function is applied bound to a public key. | |
| Public Member Functions inherited from X509PublicKey | |
| void | BERDecode (BufferedTransformation &bt) |
| Decode this object from a BufferedTransformation. | |
| void | DEREncode (BufferedTransformation &bt) const |
| Encode this object into a BufferedTransformation. | |
| virtual bool | BERDecodeAlgorithmParameters (BufferedTransformation &bt) |
| Decode algorithm parameters. | |
| virtual bool | DEREncodeAlgorithmParameters (BufferedTransformation &bt) const |
| Encode algorithm parameters. | |
| Public Member Functions inherited from ASN1CryptoMaterial< PublicKey > | |
| void | Save (BufferedTransformation &bt) const |
| DER encode ASN.1 object. | |
| void | Load (BufferedTransformation &bt) |
| BER decode ASN.1 object. | |
| Public Member Functions inherited from ASN1Object | |
| virtual void | BEREncode (BufferedTransformation &bt) const |
| Encode this object into a BufferedTransformation. | |
| Public Member Functions inherited from CryptoMaterial | |
| virtual void | ThrowIfInvalid (RandomNumberGenerator &rng, unsigned int level) const |
| Check this object for errors. | |
| virtual bool | SupportsPrecomputation () const |
| Determines whether the object supports precomputation. | |
| virtual void | Precompute (unsigned int precomputationStorage) |
| Perform precomputation. | |
| virtual void | LoadPrecomputation (BufferedTransformation &storedPrecomputation) |
| Retrieve previously saved precomputation. | |
| virtual void | SavePrecomputation (BufferedTransformation &storedPrecomputation) const |
| Save precomputation for later use. | |
| void | DoQuickSanityCheck () const |
| Perform a quick sanity check. | |
| Public Member Functions inherited from NameValuePairs | |
| template<class T > | |
| bool | GetThisObject (T &object) const |
| Get a copy of this object or subobject. | |
| template<class T > | |
| bool | GetThisPointer (T *&ptr) const |
| Get a pointer to this object. | |
| template<class T > | |
| bool | GetValue (const char *name, T &value) const |
| Get a named value. | |
| template<class T > | |
| T | GetValueWithDefault (const char *name, T defaultValue) const |
| Get a named value. | |
| CRYPTOPP_DLL std::string | GetValueNames () const |
| Get a list of value names that can be retrieved. | |
| CRYPTOPP_DLL bool | GetIntValue (const char *name, int &value) const |
| Get a named value with type int. | |
| CRYPTOPP_DLL int | GetIntValueWithDefault (const char *name, int defaultValue) const |
| Get a named value with type int, with default. | |
| CRYPTOPP_DLL bool | GetWord64Value (const char *name, word64 &value) const |
| Get a named value with type word64. | |
| CRYPTOPP_DLL word64 | GetWord64ValueWithDefault (const char *name, word64 defaultValue) const |
| Get a named value with type word64, with default. | |
| template<class T > | |
| void | GetRequiredParameter (const char *className, const char *name, T &value) const |
| Retrieves a required name/value pair. | |
| CRYPTOPP_DLL void | GetRequiredIntParameter (const char *className, const char *name, int &value) const |
| Retrieves a required name/value pair. | |
Additional Inherited Members | |
| Static Public Member Functions inherited from NameValuePairs | |
| static CRYPTOPP_DLL void CRYPTOPP_API | ThrowIfTypeMismatch (const char *name, const std::type_info &stored, const std::type_info &retrieving) |
| Ensures an expected name and type is present. | |
| Protected Attributes inherited from RSAFunction | |
| Integer | m_n |
| Integer | m_e |
Detailed Description
Member Function Documentation
◆ ApplyFunction()
Applies the trapdoor.
- Parameters
-
x the message on which the encryption function is applied
- Returns
- the message x encrypted under the public key
ApplyFunction is a generalization of encryption under a public key cryptosystem. Derived classes must implement it.
Reimplemented from RSAFunction.
◆ PreimageBound()
|
inlinevirtual |
Returns the maximum size of a message before the trapdoor function is applied.
- Returns
- the maximum size of a message before the trapdoor function is applied
Derived classes must implement PreimageBound().
Reimplemented from RSAFunction.
The documentation for this class was generated from the following files:
