Botan
2.1.0
Crypto and TLS for C++11
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#include <dl_algo.h>
Public Member Functions | |
virtual std::string | algo_name () const =0 |
AlgorithmIdentifier | algorithm_identifier () const override |
bool | check_key (RandomNumberGenerator &rng, bool) const override |
virtual std::unique_ptr< PK_Ops::Encryption > | create_encryption_op (RandomNumberGenerator &rng, const std::string ¶ms, const std::string &provider) const |
virtual std::unique_ptr< PK_Ops::KEM_Encryption > | create_kem_encryption_op (RandomNumberGenerator &rng, const std::string ¶ms, const std::string &provider) const |
virtual std::unique_ptr< PK_Ops::Verification > | create_verification_op (const std::string ¶ms, const std::string &provider) const |
DL_Scheme_PublicKey (const AlgorithmIdentifier &alg_id, const std::vector< uint8_t > &key_bits, DL_Group::Format group_format) | |
size_t | estimated_strength () const override |
const DL_Group & | get_domain () const |
virtual OID | get_oid () const |
const BigInt & | get_y () const |
virtual DL_Group::Format | group_format () const =0 |
const BigInt & | group_g () const |
const BigInt & | group_p () const |
const BigInt & | group_q () const |
size_t | key_length () const override |
virtual size_t | message_part_size () const |
virtual size_t | message_parts () const |
DL_Scheme_PublicKey & | operator= (const DL_Scheme_PublicKey &other)=default |
std::vector< uint8_t > | public_key_bits () const override |
std::vector< uint8_t > | subject_public_key () const |
Protected Member Functions | |
DL_Scheme_PublicKey ()=default | |
Protected Attributes | |
DL_Group | m_group |
BigInt | m_y |
Botan::DL_Scheme_PublicKey::DL_Scheme_PublicKey | ( | const AlgorithmIdentifier & | alg_id, |
const std::vector< uint8_t > & | key_bits, | ||
DL_Group::Format | group_format | ||
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Create a public key.
alg_id | the X.509 algorithm identifier |
key_bits | DER encoded public key bits |
group_format | the underlying groups encoding format |
Definition at line 37 of file dl_algo.cpp.
References Botan::DL_Group::BER_decode(), Botan::BER_Decoder::decode(), m_group, m_y, and Botan::AlgorithmIdentifier::parameters.
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protecteddefault |
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pure virtualinherited |
Get the name of the underlying public key scheme.
Implemented in Botan::XMSS_WOTS_PublicKey, Botan::XMSS_PublicKey, Botan::TPM_PrivateKey, Botan::XMSS_WOTS_Addressed_PublicKey, Botan::ECDSA_PublicKey, Botan::ECDH_PublicKey, Botan::GOST_3410_PublicKey, Botan::ECGDSA_PublicKey, Botan::ECKCDSA_PublicKey, Botan::RSA_PublicKey, Botan::McEliece_PublicKey, Botan::DH_PublicKey, Botan::DSA_PublicKey, Botan::ElGamal_PublicKey, and Botan::Curve25519_PublicKey.
Referenced by Botan::PKCS8::BER_encode(), Botan::TLS::Policy::check_peer_key_acceptable(), Botan::X509_Object::check_signature(), Botan::TLS::Handshake_State::choose_sig_format(), Botan::choose_sig_format(), Botan::TLS::Client_Key_Exchange::Client_Key_Exchange(), Botan::Private_Key::create_decryption_op(), Botan::Public_Key::create_encryption_op(), Botan::Private_Key::create_kem_decryption_op(), Botan::Public_Key::create_kem_encryption_op(), Botan::Private_Key::create_key_agreement_op(), Botan::Private_Key::create_signature_op(), Botan::Public_Key::create_verification_op(), Botan::Public_Key::get_oid(), Botan::TLS::Handshake_State::parse_sig_format(), Botan::PK_Decryptor_EME::PK_Decryptor_EME(), Botan::PK_Encryptor_EME::PK_Encryptor_EME(), Botan::PK_KEM_Decryptor::PK_KEM_Decryptor(), Botan::PK_KEM_Encryptor::PK_KEM_Encryptor(), Botan::PK_Key_Agreement::PK_Key_Agreement(), Botan::PK_Signer::PK_Signer(), Botan::PK_Verifier::PK_Verifier(), and Botan::verify_cert_constraints_valid_for_key_type().
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overridevirtual |
Implements Botan::Public_Key.
Definition at line 26 of file dl_algo.cpp.
References Botan::DL_Group::DER_encode(), Botan::Public_Key::get_oid(), group_format(), and m_group.
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overridevirtual |
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::DL_Scheme_PrivateKey, Botan::DSA_PrivateKey, and Botan::ElGamal_PrivateKey.
Definition at line 63 of file dl_algo.cpp.
References group_p(), group_q(), m_group, m_y, Botan::power_mod(), and Botan::DL_Group::verify_group().
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virtualinherited |
This is an internal library function exposed on key types. In almost all cases applications should use wrappers in pubkey.h
Return an encryption operation for this key/params or throw
rng | a random number generator. The PK_Op may maintain a reference to the RNG and use it many times. The rng must outlive any operations which reference it. |
params | additional parameters |
provider | the provider to use |
Reimplemented in Botan::RSA_PublicKey, and Botan::ElGamal_PublicKey.
Definition at line 79 of file pk_keys.cpp.
References Botan::Public_Key::algo_name().
Referenced by Botan::PK_Encryptor_EME::PK_Encryptor_EME().
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virtualinherited |
This is an internal library function exposed on key types. In almost all cases applications should use wrappers in pubkey.h
Return a KEM encryption operation for this key/params or throw
rng | a random number generator. The PK_Op may maintain a reference to the RNG and use it many times. The rng must outlive any operations which reference it. |
params | additional parameters |
provider | the provider to use |
Reimplemented in Botan::RSA_PublicKey, and Botan::McEliece_PublicKey.
Definition at line 87 of file pk_keys.cpp.
References Botan::Public_Key::algo_name().
Referenced by Botan::PK_KEM_Encryptor::PK_KEM_Encryptor().
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virtualinherited |
This is an internal library function exposed on key types. In almost all cases applications should use wrappers in pubkey.h
Return a verification operation for this key/params or throw
params | additional parameters |
provider | the provider to use |
Reimplemented in Botan::XMSS_WOTS_PublicKey, Botan::XMSS_PublicKey, Botan::RSA_PublicKey, Botan::XMSS_WOTS_Addressed_PublicKey, Botan::GOST_3410_PublicKey, Botan::ECDSA_PublicKey, Botan::ECGDSA_PublicKey, Botan::ECKCDSA_PublicKey, and Botan::DSA_PublicKey.
Definition at line 95 of file pk_keys.cpp.
References Botan::Public_Key::algo_name().
Referenced by Botan::PK_Verifier::PK_Verifier().
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overridevirtual |
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 dl_algo.cpp.
References Botan::dl_work_factor(), and key_length().
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inline |
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virtualinherited |
Get the OID of the underlying public key scheme.
Reimplemented in Botan::XMSS_WOTS_Addressed_PublicKey.
Definition at line 30 of file pk_keys.cpp.
References Botan::Public_Key::algo_name(), and Botan::OIDS::lookup().
Referenced by algorithm_identifier(), Botan::Curve25519_PublicKey::algorithm_identifier(), Botan::McEliece_PublicKey::algorithm_identifier(), Botan::RSA_PublicKey::algorithm_identifier(), Botan::GOST_3410_PublicKey::algorithm_identifier(), Botan::EC_PublicKey::algorithm_identifier(), Botan::TPM_PrivateKey::algorithm_identifier(), and Botan::XMSS_WOTS_Addressed_PublicKey::get_oid().
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inline |
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pure virtual |
Get the underlying groups encoding format.
Implemented in Botan::DH_PublicKey, Botan::DSA_PublicKey, and Botan::ElGamal_PublicKey.
Referenced by algorithm_identifier().
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inline |
Get the generator g of the underlying DL group.
Definition at line 55 of file dl_algo.h.
Referenced by Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), and Botan::ElGamal_PrivateKey::ElGamal_PrivateKey().
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inline |
Get the prime p of the underlying DL group.
Definition at line 43 of file dl_algo.h.
Referenced by check_key(), Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::ElGamal_PrivateKey::ElGamal_PrivateKey(), and Botan::DH_PublicKey::public_value().
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inline |
Get the prime q of the underlying DL group.
Definition at line 49 of file dl_algo.h.
Referenced by check_key(), Botan::DSA_PrivateKey::check_key(), and Botan::DSA_PrivateKey::DSA_PrivateKey().
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overridevirtual |
Return an integer value best approximating the length of the primary security parameter. For example for RSA this will be the size of the modulus, for ECDSA the size of the ECC group, and for McEliece the size of the code will be returned.
Implements Botan::Public_Key.
Definition at line 16 of file dl_algo.cpp.
References Botan::BigInt::bits(), Botan::DL_Group::get_p(), and m_group.
Referenced by estimated_strength().
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inlinevirtualinherited |
Returns how large each of the message parts refered to by message_parts() is
This function is public but applications should have few reasons to ever call this.
Reimplemented in Botan::GOST_3410_PublicKey, Botan::ECDSA_PublicKey, Botan::ECGDSA_PublicKey, Botan::ECKCDSA_PublicKey, and Botan::DSA_PublicKey.
Definition at line 114 of file pk_keys.h.
Referenced by Botan::PK_Signer::PK_Signer(), and Botan::PK_Verifier::PK_Verifier().
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inlinevirtualinherited |
Returns more than 1 if the output of this algorithm (ciphertext, signature) should be treated as more than one value. This is used for algorithms like DSA and ECDSA, where the (r,s) output pair can be encoded as either a plain binary list or a TLV tagged DER encoding depending on the protocol.
This function is public but applications should have few reasons to ever call this.
Reimplemented in Botan::GOST_3410_PublicKey, Botan::ECDSA_PublicKey, Botan::ECGDSA_PublicKey, Botan::ECKCDSA_PublicKey, and Botan::DSA_PublicKey.
Definition at line 103 of file pk_keys.h.
Referenced by Botan::X509_Object::check_signature(), Botan::choose_sig_format(), Botan::PK_Signer::PK_Signer(), and Botan::PK_Verifier::PK_Verifier().
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default |
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overridevirtual |
Implements Botan::Public_Key.
Definition at line 32 of file dl_algo.cpp.
References Botan::DER_Encoder::encode(), Botan::DER_Encoder::get_contents_unlocked(), and m_y.
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inherited |
Definition at line 17 of file pk_keys.cpp.
References Botan::Public_Key::algorithm_identifier(), Botan::BIT_STRING, Botan::DER_Encoder::encode(), Botan::DER_Encoder::end_cons(), Botan::DER_Encoder::get_contents_unlocked(), Botan::Public_Key::public_key_bits(), Botan::SEQUENCE, and Botan::DER_Encoder::start_cons().
Referenced by Botan::X509::BER_encode(), and Botan::X509::PEM_encode().
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protected |
The DL group
Definition at line 89 of file dl_algo.h.
Referenced by algorithm_identifier(), check_key(), Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DH_PublicKey::DH_PublicKey(), Botan::DL_Scheme_PrivateKey::DL_Scheme_PrivateKey(), DL_Scheme_PublicKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_PublicKey::DSA_PublicKey(), Botan::ElGamal_PrivateKey::ElGamal_PrivateKey(), Botan::ElGamal_PublicKey::ElGamal_PublicKey(), and key_length().
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protected |
The DL public key
Definition at line 84 of file dl_algo.h.
Referenced by check_key(), Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DH_PublicKey::DH_PublicKey(), DL_Scheme_PublicKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_PublicKey::DSA_PublicKey(), Botan::ElGamal_PrivateKey::ElGamal_PrivateKey(), Botan::ElGamal_PublicKey::ElGamal_PublicKey(), public_key_bits(), and Botan::DH_PublicKey::public_value().