Botan
1.11.15
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#include <ecdsa.h>
Public Member Functions | |
std::string | algo_name () const |
AlgorithmIdentifier | algorithm_identifier () const |
bool | check_key (RandomNumberGenerator &rng, bool strong) const |
std::vector< byte > | DER_domain () const |
const EC_Group & | domain () const |
EC_Group_Encoding | domain_format () const |
ECDSA_PublicKey (const EC_Group &dom_par, const PointGFp &public_point) | |
ECDSA_PublicKey (const AlgorithmIdentifier &alg_id, const secure_vector< byte > &key_bits) | |
size_t | estimated_strength () const override |
virtual OID | get_oid () const |
size_t | max_input_bits () const |
size_t | message_part_size () const |
size_t | message_parts () const |
const PointGFp & | public_point () const |
void | set_parameter_encoding (EC_Group_Encoding enc) |
std::vector< byte > | x509_subject_public_key () const |
Protected Member Functions | |
ECDSA_PublicKey () | |
virtual void | load_check (RandomNumberGenerator &rng) const |
Protected Attributes | |
EC_Group_Encoding | domain_encoding |
EC_Group | domain_params |
PointGFp | public_key |
Botan::ECDSA_PublicKey::ECDSA_PublicKey | ( | const EC_Group & | dom_par, |
const PointGFp & | public_point | ||
) | [inline] |
Construct a public key from a given public point.
dom_par | the domain parameters associated with this key |
public_point | the public point defining this key |
Definition at line 29 of file ecdsa.h.
: EC_PublicKey(dom_par, public_point) {}
Botan::ECDSA_PublicKey::ECDSA_PublicKey | ( | const AlgorithmIdentifier & | alg_id, |
const secure_vector< byte > & | key_bits | ||
) | [inline] |
Definition at line 33 of file ecdsa.h.
: EC_PublicKey(alg_id, key_bits) {}
Botan::ECDSA_PublicKey::ECDSA_PublicKey | ( | ) | [inline, protected] |
std::string Botan::ECDSA_PublicKey::algo_name | ( | ) | const [inline, virtual] |
Get this keys algorithm name.
Implements Botan::Public_Key.
Definition at line 41 of file ecdsa.h.
Referenced by Botan::CVC_EAC::create_cvc_req(), and Botan::CVC_EAC::create_self_signed_cert().
{ return "ECDSA"; }
AlgorithmIdentifier Botan::EC_PublicKey::algorithm_identifier | ( | ) | const [virtual, inherited] |
Implements Botan::Public_Key.
Reimplemented in Botan::GOST_3410_PublicKey.
Definition at line 50 of file ecc_key.cpp.
References Botan::EC_PublicKey::DER_domain(), and Botan::Public_Key::get_oid().
Referenced by Botan::GOST_3410_PrivateKey::pkcs8_algorithm_identifier().
{ return AlgorithmIdentifier(get_oid(), DER_domain()); }
bool Botan::EC_PublicKey::check_key | ( | RandomNumberGenerator & | rng, |
bool | strong | ||
) | const [virtual, inherited] |
Test the key values for consistency.
rng | rng to use |
strong | whether to perform strong and lengthy version of the test |
Implements Botan::Public_Key.
Reimplemented in Botan::ECDSA_PrivateKey.
Definition at line 44 of file ecc_key.cpp.
References Botan::PointGFp::on_the_curve(), and Botan::EC_PublicKey::public_point().
{ return public_point().on_the_curve(); }
std::vector<byte> Botan::EC_PublicKey::DER_domain | ( | ) | const [inline, inherited] |
Return the DER encoding of this keys domain in whatever format is preset for this particular key
Definition at line 72 of file ecc_key.h.
Referenced by Botan::EC_PublicKey::algorithm_identifier().
{ return domain().DER_encode(domain_format()); }
const EC_Group& Botan::EC_PublicKey::domain | ( | ) | const [inline, inherited] |
Get the domain parameters of this key.
Invalid_State | is thrown if the domain parameters of this point are not set |
Definition at line 60 of file ecc_key.h.
Referenced by Botan::GOST_3410_PublicKey::algorithm_identifier(), Botan::EC_PrivateKey::EC_PrivateKey(), Botan::EC_PublicKey::EC_PublicKey(), Botan::EC_PublicKey::estimated_strength(), and Botan::GOST_3410_PublicKey::GOST_3410_PublicKey().
{ return domain_params; }
EC_Group_Encoding Botan::EC_PublicKey::domain_format | ( | ) | const [inline, inherited] |
Get the domain parameter encoding to be used when encoding this key.
Definition at line 79 of file ecc_key.h.
{ return domain_encoding; }
size_t Botan::EC_PublicKey::estimated_strength | ( | ) | const [override, virtual, inherited] |
Return the estimated strength of the underlying key against the best currently known attack. Note that this ignores anything but pure attacks against the key itself and do not take into account padding schemes, usage mistakes, etc which might reduce the strength. However it does suffice to provide an upper bound.
Implements Botan::Public_Key.
Definition at line 21 of file ecc_key.cpp.
References Botan::EC_PublicKey::domain(), and Botan::ecp_work_factor().
{ return ecp_work_factor(domain().get_curve().get_p().bits()); }
OID Botan::Public_Key::get_oid | ( | ) | const [virtual, inherited] |
Get the OID of the underlying public key scheme.
Definition at line 17 of file pk_keys.cpp.
References Botan::Public_Key::algo_name(), and Botan::OIDS::lookup().
Referenced by Botan::DL_Scheme_PublicKey::algorithm_identifier(), Botan::Curve25519_PublicKey::algorithm_identifier(), Botan::IF_Scheme_PublicKey::algorithm_identifier(), Botan::GOST_3410_PublicKey::algorithm_identifier(), Botan::EC_PublicKey::algorithm_identifier(), and Botan::McEliece_PublicKey::algorithm_identifier().
{ try { return OIDS::lookup(algo_name()); } catch(Lookup_Error) { throw Lookup_Error("PK algo " + algo_name() + " has no defined OIDs"); } }
void Botan::Public_Key::load_check | ( | RandomNumberGenerator & | rng | ) | const [protected, virtual, inherited] |
Self-test after loading a key
rng | a random number generator |
Reimplemented in Botan::Private_Key.
Definition at line 31 of file pk_keys.cpp.
References Botan::Public_Key::algo_name(), and Botan::Public_Key::check_key().
{ if(!check_key(rng, BOTAN_PUBLIC_KEY_STRONG_CHECKS_ON_LOAD)) throw Invalid_Argument(algo_name() + ": Invalid public key"); }
size_t Botan::ECDSA_PublicKey::max_input_bits | ( | ) | const [inline, virtual] |
size_t Botan::ECDSA_PublicKey::message_part_size | ( | ) | const [inline, virtual] |
size_t Botan::ECDSA_PublicKey::message_parts | ( | ) | const [inline, virtual] |
Find out the number of message parts supported by this scheme.
Reimplemented from Botan::Public_Key.
Definition at line 50 of file ecdsa.h.
{ return 2; }
const PointGFp& Botan::EC_PublicKey::public_point | ( | ) | const [inline, inherited] |
Get the public point of this key.
Invalid_State | is thrown if the domain parameters of this point are not set |
Definition at line 45 of file ecc_key.h.
Referenced by Botan::EC_PublicKey::check_key(), Botan::ECDSA_PrivateKey::check_key(), Botan::EC_PublicKey::EC_PublicKey(), Botan::GOST_3410_PublicKey::x509_subject_public_key(), and Botan::EC_PublicKey::x509_subject_public_key().
{ return public_key; }
void Botan::EC_PublicKey::set_parameter_encoding | ( | EC_Group_Encoding | enc | ) | [inherited] |
Set the domain parameter encoding to be used when encoding this key.
enc | the encoding to use |
Definition at line 60 of file ecc_key.cpp.
References Botan::EC_PublicKey::domain_encoding, Botan::EC_PublicKey::domain_params, Botan::EC_DOMPAR_ENC_EXPLICIT, Botan::EC_DOMPAR_ENC_IMPLICITCA, Botan::EC_DOMPAR_ENC_OID, and Botan::EC_Group::get_oid().
Referenced by Botan::DE_EAC::create_cvc_req(), Botan::DE_EAC::link_cvca(), and Botan::DE_EAC::sign_request().
{ if(form != EC_DOMPAR_ENC_EXPLICIT && form != EC_DOMPAR_ENC_IMPLICITCA && form != EC_DOMPAR_ENC_OID) throw Invalid_Argument("Invalid encoding form for EC-key object specified"); if((form == EC_DOMPAR_ENC_OID) && (domain_params.get_oid() == "")) throw Invalid_Argument("Invalid encoding form OID specified for " "EC-key object whose corresponding domain " "parameters are without oid"); domain_encoding = form; }
std::vector< byte > Botan::EC_PublicKey::x509_subject_public_key | ( | ) | const [virtual, inherited] |
Implements Botan::Public_Key.
Reimplemented in Botan::GOST_3410_PublicKey.
Definition at line 55 of file ecc_key.cpp.
References Botan::PointGFp::COMPRESSED, Botan::EC2OSP(), Botan::EC_PublicKey::public_point(), and Botan::unlock().
{ return unlock(EC2OSP(public_point(), PointGFp::COMPRESSED)); }
EC_Group_Encoding Botan::EC_PublicKey::domain_encoding [protected, inherited] |
Definition at line 89 of file ecc_key.h.
Referenced by Botan::EC_PrivateKey::EC_PrivateKey(), Botan::EC_PublicKey::EC_PublicKey(), and Botan::EC_PublicKey::set_parameter_encoding().
EC_Group Botan::EC_PublicKey::domain_params [protected, inherited] |
Definition at line 87 of file ecc_key.h.
Referenced by Botan::EC_PrivateKey::EC_PrivateKey(), Botan::EC_PublicKey::EC_PublicKey(), Botan::GOST_3410_PublicKey::GOST_3410_PublicKey(), and Botan::EC_PublicKey::set_parameter_encoding().
PointGFp Botan::EC_PublicKey::public_key [protected, inherited] |
Definition at line 88 of file ecc_key.h.
Referenced by Botan::EC_PrivateKey::EC_PrivateKey(), Botan::EC_PublicKey::EC_PublicKey(), and Botan::GOST_3410_PublicKey::GOST_3410_PublicKey().