vanetza::security::Backend Class Reference

#include <backend.hpp>

Inheritance diagram for vanetza::security::Backend:

Public Member Functions
virtual EcdsaSignature	sign_data (const ecdsa256::PrivateKey &private_key, const ByteBuffer &data)=0
	calculate signature for given data and private key
virtual Signature	sign_digest (const PrivateKey &, const ByteBuffer &digest)=0
	calculate signature for given digest and private key
virtual bool	verify_data (const ecdsa256::PublicKey &public_key, const ByteBuffer &data, const EcdsaSignature &sig)=0
	try to verify data using public key and signature
virtual bool	verify_digest (const PublicKey &public_key, const ByteBuffer &digest, const Signature &sig)=0
	try to verify digest using public key and signature
virtual boost::optional< Uncompressed >	decompress_point (const EccPoint &ecc_point)=0
	decompress a possibly compressed elliptic curve point
virtual ByteBuffer	calculate_hash (HashAlgorithm algo, const ByteBuffer &data)=0
	calculate hash value of data

Detailed Description

Interface to cryptographic features

Definition at line 24 of file backend.hpp.

Member Function Documentation

calculate_hash()

virtual ByteBuffer vanetza::security::Backend::calculate_hash ( HashAlgorithm algo, const ByteBuffer & data )

pure virtual

calculate hash value of data

Parameters

algo	hash algorithm
data	buffer with data

Returns

buffer containing calculated hash value

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

decompress_point()

virtual boost::optional< Uncompressed > vanetza::security::Backend::decompress_point ( const EccPoint & ecc_point )

pure virtual

decompress a possibly compressed elliptic curve point

Parameters

ecc_point

elliptic curve point

Returns

uncompressed point

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

sign_data()

virtual EcdsaSignature vanetza::security::Backend::sign_data ( const ecdsa256::PrivateKey & private_key, const ByteBuffer & data )

pure virtual

calculate signature for given data and private key

Parameters

private_key	Secret private key
data	buffer with plaintext data

Returns

calculated signature

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

sign_digest()

virtual Signature vanetza::security::Backend::sign_digest ( const PrivateKey & , const ByteBuffer & digest )

pure virtual

calculate signature for given digest and private key

Parameters

private_key	secret private key
digest	hash value of data

Returns

calculated signature

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

verify_data()

virtual bool vanetza::security::Backend::verify_data ( const ecdsa256::PublicKey & public_key, const ByteBuffer & data, const EcdsaSignature & sig )

pure virtual

try to verify data using public key and signature

Parameters

public_key	Public key
data	plaintext
sig	signature of data

Returns

true if the data could be verified

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

verify_digest()

virtual bool vanetza::security::Backend::verify_digest ( const PublicKey & public_key, const ByteBuffer & digest, const Signature & sig )

pure virtual

try to verify digest using public key and signature

Parameters

public_key	public key
digest	hash value of data
sig	signature of data

Returns

true if data could be verified

Implemented in vanetza::security::BackendCryptoPP, vanetza::security::BackendNull, and vanetza::security::BackendOpenSsl.

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

• vanetza/security/backend.hpp