Botan
1.10.9
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#include <elgamal.h>
Public Member Functions | |
std::string | algo_name () const |
AlgorithmIdentifier | algorithm_identifier () const |
bool | check_key (RandomNumberGenerator &rng, bool) const |
ElGamal_PrivateKey (const AlgorithmIdentifier &alg_id, const MemoryRegion< byte > &key_bits, RandomNumberGenerator &rng) | |
ElGamal_PrivateKey (RandomNumberGenerator &rng, const DL_Group &group, const BigInt &priv_key=0) | |
const DL_Group & | get_domain () const |
virtual OID | get_oid () const |
const BigInt & | get_x () const |
const BigInt & | get_y () const |
DL_Group::Format | group_format () const |
const BigInt & | group_g () const |
const BigInt & | group_p () const |
const BigInt & | group_q () const |
size_t | max_input_bits () const |
virtual size_t | message_part_size () const |
virtual size_t | message_parts () const |
virtual AlgorithmIdentifier | pkcs8_algorithm_identifier () const |
MemoryVector< byte > | pkcs8_private_key () const |
MemoryVector< byte > | x509_subject_public_key () const |
Protected Member Functions | |
void | gen_check (RandomNumberGenerator &rng) const |
virtual void | load_check (RandomNumberGenerator &rng) const |
void | load_check (RandomNumberGenerator &rng) const |
Protected Attributes | |
DL_Group | group |
BigInt | x |
BigInt | y |
Botan::ElGamal_PrivateKey::ElGamal_PrivateKey | ( | const AlgorithmIdentifier & | alg_id, |
const MemoryRegion< byte > & | key_bits, | ||
RandomNumberGenerator & | rng | ||
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Definition at line 46 of file elgamal.cpp.
References Botan::DL_Scheme_PublicKey::group_g(), Botan::DL_Scheme_PublicKey::group_p(), Botan::Private_Key::load_check(), Botan::power_mod(), Botan::DL_Scheme_PrivateKey::x, and Botan::DL_Scheme_PublicKey::y.
Botan::ElGamal_PrivateKey::ElGamal_PrivateKey | ( | RandomNumberGenerator & | rng, |
const DL_Group & | group, | ||
const BigInt & | priv_key = 0 |
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) |
Definition at line 28 of file elgamal.cpp.
References Botan::dl_work_factor(), Botan::Private_Key::gen_check(), Botan::DL_Scheme_PublicKey::group, Botan::DL_Scheme_PublicKey::group_g(), Botan::DL_Scheme_PublicKey::group_p(), Botan::Private_Key::load_check(), Botan::power_mod(), Botan::BigInt::randomize(), Botan::DL_Scheme_PrivateKey::x, and Botan::DL_Scheme_PublicKey::y.
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inlinevirtualinherited |
Get the name of the underlying public key scheme.
Implements Botan::Public_Key.
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virtualinherited |
Implements Botan::Public_Key.
Definition at line 15 of file dl_algo.cpp.
References Botan::DL_Group::DER_encode(), Botan::Public_Key::get_oid(), Botan::DL_Scheme_PublicKey::group, and Botan::DL_Scheme_PublicKey::group_format().
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virtual |
Test the key values for consistency.
rng | rng to use |
strong | whether to perform strong and lengthy version of the test |
Reimplemented from Botan::DL_Scheme_PrivateKey.
Definition at line 58 of file elgamal.cpp.
References Botan::DL_Scheme_PrivateKey::check_key(), and Botan::KeyPair::encryption_consistency_check().
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protectedinherited |
Self-test after generating a key
rng | a random number generator |
Definition at line 49 of file pk_keys.cpp.
References Botan::Public_Key::algo_name(), and Botan::Public_Key::check_key().
Referenced by Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), ElGamal_PrivateKey(), Botan::NR_PrivateKey::NR_PrivateKey(), Botan::RSA_PrivateKey::RSA_PrivateKey(), and Botan::RW_PrivateKey::RW_PrivateKey().
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inlineinherited |
Get the DL domain parameters of this key.
Definition at line 33 of file dl_algo.h.
Referenced by Botan::Server_Key_Exchange::Server_Key_Exchange().
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virtualinherited |
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::IF_Scheme_PublicKey::algorithm_identifier(), Botan::GOST_3410_PublicKey::algorithm_identifier(), and Botan::EC_PublicKey::algorithm_identifier().
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inlineinherited |
Get the secret key x.
Definition at line 95 of file dl_algo.h.
Referenced by Botan::ElGamal_Decryption_Operation::ElGamal_Decryption_Operation().
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inlineinherited |
Get the public value y with y = g^x mod p where x is the secret key.
Definition at line 38 of file dl_algo.h.
Referenced by Botan::ElGamal_Encryption_Operation::ElGamal_Encryption_Operation().
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inlinevirtualinherited |
Get the underlying groups encoding format.
Implements Botan::DL_Scheme_PublicKey.
Definition at line 26 of file elgamal.h.
References Botan::DL_Group::ANSI_X9_42.
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inlineinherited |
Get the generator g of the underlying DL group.
Definition at line 56 of file dl_algo.h.
Referenced by Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_Verification_Operation::DSA_Verification_Operation(), Botan::ElGamal_Encryption_Operation::ElGamal_Encryption_Operation(), ElGamal_PrivateKey(), Botan::NR_PrivateKey::NR_PrivateKey(), and Botan::NR_Verification_Operation::NR_Verification_Operation().
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inlineinherited |
Get the prime p of the underlying DL group.
Definition at line 44 of file dl_algo.h.
Referenced by Botan::DL_Scheme_PublicKey::check_key(), Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_Verification_Operation::DSA_Verification_Operation(), Botan::ElGamal_Decryption_Operation::ElGamal_Decryption_Operation(), Botan::ElGamal_Encryption_Operation::ElGamal_Encryption_Operation(), ElGamal_PrivateKey(), Botan::NR_PrivateKey::NR_PrivateKey(), Botan::NR_Verification_Operation::NR_Verification_Operation(), and Botan::DH_PublicKey::public_value().
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inlineinherited |
Get the prime q of the underlying DL group.
Definition at line 50 of file dl_algo.h.
Referenced by Botan::NR_PrivateKey::check_key(), Botan::DSA_PrivateKey::check_key(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_Verification_Operation::DSA_Verification_Operation(), Botan::NR_PrivateKey::NR_PrivateKey(), and Botan::NR_Verification_Operation::NR_Verification_Operation().
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protectedvirtualinherited |
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().
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protectedvirtualinherited |
Self-test after loading a key
rng | a random number generator |
Reimplemented from Botan::Public_Key.
Definition at line 40 of file pk_keys.cpp.
References Botan::Public_Key::algo_name(), and Botan::Public_Key::check_key().
Referenced by Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), ElGamal_PrivateKey(), Botan::IF_Scheme_PrivateKey::IF_Scheme_PrivateKey(), and Botan::NR_PrivateKey::NR_PrivateKey().
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inlinevirtualinherited |
Get the maximum message size in bits supported by this public key.
Implements Botan::Public_Key.
Definition at line 28 of file elgamal.h.
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inlinevirtualinherited |
Find out the message part size supported by this scheme/key.
Reimplemented in Botan::GOST_3410_PublicKey, Botan::ECDSA_PublicKey, Botan::NR_PublicKey, and Botan::DSA_PublicKey.
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inlinevirtualinherited |
Find out the number of message parts supported by this scheme.
Reimplemented in Botan::GOST_3410_PublicKey, Botan::ECDSA_PublicKey, Botan::NR_PublicKey, and Botan::DSA_PublicKey.
Definition at line 50 of file pk_keys.h.
Referenced by Botan::EAC_Signed_Object::check_signature(), Botan::X509_Object::check_signature(), and Botan::choose_sig_format().
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inlinevirtualinherited |
Reimplemented in Botan::GOST_3410_PrivateKey.
Definition at line 98 of file pk_keys.h.
Referenced by Botan::PKCS8::BER_encode().
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virtualinherited |
Implements Botan::Private_Key.
Definition at line 36 of file dl_algo.cpp.
References Botan::DER_Encoder::encode(), Botan::DER_Encoder::get_contents(), and Botan::DL_Scheme_PrivateKey::x.
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virtualinherited |
Implements Botan::Public_Key.
Definition at line 21 of file dl_algo.cpp.
References Botan::DER_Encoder::encode(), Botan::DER_Encoder::get_contents(), and Botan::DL_Scheme_PublicKey::y.
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protectedinherited |
The DL group
Definition at line 79 of file dl_algo.h.
Referenced by Botan::DL_Scheme_PublicKey::algorithm_identifier(), Botan::DL_Scheme_PublicKey::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(), Botan::DL_Scheme_PublicKey::DL_Scheme_PublicKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_PublicKey::DSA_PublicKey(), ElGamal_PrivateKey(), Botan::ElGamal_PublicKey::ElGamal_PublicKey(), Botan::NR_PrivateKey::NR_PrivateKey(), and Botan::NR_PublicKey::NR_PublicKey().
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protectedinherited |
The DL private key
Definition at line 109 of file dl_algo.h.
Referenced by Botan::NR_PrivateKey::check_key(), Botan::DSA_PrivateKey::check_key(), Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DL_Scheme_PrivateKey::DL_Scheme_PrivateKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), ElGamal_PrivateKey(), Botan::NR_PrivateKey::NR_PrivateKey(), and Botan::DL_Scheme_PrivateKey::pkcs8_private_key().
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protectedinherited |
The DL public key
Definition at line 74 of file dl_algo.h.
Referenced by Botan::DL_Scheme_PrivateKey::check_key(), Botan::DH_PrivateKey::DH_PrivateKey(), Botan::DH_PublicKey::DH_PublicKey(), Botan::DL_Scheme_PublicKey::DL_Scheme_PublicKey(), Botan::DSA_PrivateKey::DSA_PrivateKey(), Botan::DSA_PublicKey::DSA_PublicKey(), ElGamal_PrivateKey(), Botan::ElGamal_PublicKey::ElGamal_PublicKey(), Botan::NR_PrivateKey::NR_PrivateKey(), Botan::NR_PublicKey::NR_PublicKey(), Botan::DH_PublicKey::public_value(), and Botan::DL_Scheme_PublicKey::x509_subject_public_key().