Botan
2.1.0
Crypto and TLS for C++11
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#include <rsa.h>
Public Member Functions | |
std::string | algo_name () const override |
AlgorithmIdentifier | algorithm_identifier () const override |
bool | check_key (RandomNumberGenerator &rng, bool) const override |
std::unique_ptr< PK_Ops::Encryption > | create_encryption_op (RandomNumberGenerator &rng, const std::string ¶ms, const std::string &provider) const override |
std::unique_ptr< PK_Ops::KEM_Encryption > | create_kem_encryption_op (RandomNumberGenerator &rng, const std::string ¶ms, const std::string &provider) const override |
std::unique_ptr< PK_Ops::Verification > | create_verification_op (const std::string ¶ms, const std::string &provider) const override |
size_t | estimated_strength () const override |
const BigInt & | get_e () const |
const BigInt & | get_n () const |
virtual OID | get_oid () const |
size_t | key_length () const override |
virtual size_t | message_part_size () const |
virtual size_t | message_parts () const |
std::vector< uint8_t > | public_key_bits () const override |
RSA_PublicKey (const AlgorithmIdentifier &alg_id, const std::vector< uint8_t > &key_bits) | |
RSA_PublicKey (const BigInt &n, const BigInt &e) | |
std::vector< uint8_t > | subject_public_key () const |
Protected Member Functions | |
RSA_PublicKey ()=default | |
Protected Attributes | |
BigInt | m_e |
BigInt | m_n |
Botan::RSA_PublicKey::RSA_PublicKey | ( | const AlgorithmIdentifier & | alg_id, |
const std::vector< uint8_t > & | key_bits | ||
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Load a public key.
alg_id | the X.509 algorithm identifier |
key_bits | DER encoded public key bits |
Definition at line 54 of file rsa.cpp.
References Botan::BER_Decoder::decode(), Botan::BER_Decoder::end_cons(), m_e, m_n, Botan::SEQUENCE, and Botan::BER_Decoder::start_cons().
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protecteddefault |
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inlineoverridevirtual |
Get the name of the underlying public key scheme.
Implements Botan::Public_Key.
Definition at line 38 of file rsa.h.
Referenced by Botan::RSA_PrivateKey::create_decryption_op(), create_encryption_op(), Botan::RSA_PrivateKey::create_kem_decryption_op(), create_kem_encryption_op(), Botan::RSA_PrivateKey::create_signature_op(), create_verification_op(), and Botan::RSA_PrivateKey::RSA_PrivateKey().
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overridevirtual |
Implements Botan::Public_Key.
Definition at line 38 of file rsa.cpp.
References Botan::Public_Key::get_oid(), and Botan::AlgorithmIdentifier::USE_NULL_PARAM.
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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::RSA_PrivateKey.
Definition at line 67 of file rsa.cpp.
References Botan::BigInt::is_even(), m_e, and m_n.
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overridevirtual |
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 from Botan::Public_Key.
Definition at line 407 of file rsa.cpp.
References algo_name(), and Botan::Exception::what().
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overridevirtual |
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 from Botan::Public_Key.
Definition at line 437 of file rsa.cpp.
References algo_name().
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overridevirtual |
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 from Botan::Public_Key.
Definition at line 447 of file rsa.cpp.
References algo_name().
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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 33 of file rsa.cpp.
References Botan::if_work_factor(), and key_length().
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inline |
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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 Botan::DL_Scheme_PublicKey::algorithm_identifier(), Botan::Curve25519_PublicKey::algorithm_identifier(), Botan::McEliece_PublicKey::algorithm_identifier(), 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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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 28 of file rsa.cpp.
References Botan::BigInt::bits(), and m_n.
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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overridevirtual |
Implements Botan::Public_Key.
Definition at line 44 of file rsa.cpp.
References Botan::DER_Encoder::encode(), Botan::DER_Encoder::end_cons(), Botan::DER_Encoder::get_contents_unlocked(), m_e, m_n, Botan::SEQUENCE, and Botan::DER_Encoder::start_cons().
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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 |
Definition at line 76 of file rsa.h.
Referenced by check_key(), Botan::RSA_PrivateKey::check_key(), Botan::RSA_PrivateKey::private_key_bits(), public_key_bits(), Botan::RSA_PrivateKey::RSA_PrivateKey(), and RSA_PublicKey().
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protected |
Definition at line 76 of file rsa.h.
Referenced by check_key(), Botan::RSA_PrivateKey::check_key(), key_length(), Botan::RSA_PrivateKey::private_key_bits(), public_key_bits(), Botan::RSA_PrivateKey::RSA_PrivateKey(), and RSA_PublicKey().