Botan  2.1.0
Crypto and TLS for C++11
Public Member Functions | List of all members
Botan::EMSA Class Referenceabstract

#include <emsa.h>

Inheritance diagram for Botan::EMSA:
Botan::EMSA1 Botan::EMSA_PKCS1v15 Botan::EMSA_PKCS1v15_Raw Botan::EMSA_Raw Botan::EMSA_X931 Botan::ISO_9796_DS2 Botan::ISO_9796_DS3 Botan::PSSR

Public Member Functions

virtual EMSAclone ()=0
 
virtual secure_vector< uint8_t > encoding_of (const secure_vector< uint8_t > &msg, size_t output_bits, RandomNumberGenerator &rng)=0
 
virtual secure_vector< uint8_t > raw_data ()=0
 
virtual void update (const uint8_t input[], size_t length)=0
 
virtual bool verify (const secure_vector< uint8_t > &coded, const secure_vector< uint8_t > &raw, size_t key_bits)=0
 
virtual ~EMSA ()=default
 

Detailed Description

EMSA, from IEEE 1363s Encoding Method for Signatures, Appendix

Any way of encoding/padding signatures

Definition at line 21 of file emsa.h.

Constructor & Destructor Documentation

virtual Botan::EMSA::~EMSA ( )
virtualdefault

Member Function Documentation

virtual EMSA* Botan::EMSA::clone ( )
pure virtual
Returns
a new object representing the same encoding method as *this

Implemented in Botan::ISO_9796_DS3, Botan::EMSA_PKCS1v15_Raw, Botan::ISO_9796_DS2, Botan::PSSR, Botan::EMSA_PKCS1v15, Botan::EMSA_X931, Botan::EMSA1, and Botan::EMSA_Raw.

virtual secure_vector<uint8_t> Botan::EMSA::encoding_of ( const secure_vector< uint8_t > &  msg,
size_t  output_bits,
RandomNumberGenerator rng 
)
pure virtual

Return the encoding of a message

Parameters
msgthe result of raw_data()
output_bitsthe desired output bit size
rnga random number generator
Returns
encoded signature

Implemented in Botan::EMSA_PKCS1v15_Raw, and Botan::EMSA_PKCS1v15.

virtual secure_vector<uint8_t> Botan::EMSA::raw_data ( )
pure virtual
Returns
raw hash

Implemented in Botan::EMSA_PKCS1v15_Raw, and Botan::EMSA_PKCS1v15.

virtual void Botan::EMSA::update ( const uint8_t  input[],
size_t  length 
)
pure virtual

Add more data to the signature computation

Parameters
inputsome data
lengthlength of input in bytes

Implemented in Botan::EMSA_PKCS1v15_Raw, and Botan::EMSA_PKCS1v15.

virtual bool Botan::EMSA::verify ( const secure_vector< uint8_t > &  coded,
const secure_vector< uint8_t > &  raw,
size_t  key_bits 
)
pure virtual

Verify the encoding

Parameters
codedthe received (coded) message representative
rawthe computed (local, uncoded) message representative
key_bitsthe size of the key in bits
Returns
true if coded is a valid encoding of raw, otherwise false

Implemented in Botan::EMSA_PKCS1v15_Raw, and Botan::EMSA_PKCS1v15.


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