Botan 2.19.3
Crypto and TLS for C&
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#include <pgp_s2k.h>
Public Member Functions | |
std::unique_ptr< PasswordHash > | default_params () const override |
std::unique_ptr< PasswordHash > | from_iterations (size_t iter) const override |
std::unique_ptr< PasswordHash > | from_params (size_t iter, size_t, size_t) const override |
std::string | name () const override |
RFC4880_S2K_Family (HashFunction *hash) | |
std::unique_ptr< PasswordHash > | tune (size_t output_len, std::chrono::milliseconds msec, size_t max_mem) const override |
Static Public Member Functions | |
static std::unique_ptr< PasswordHashFamily > | create (const std::string &algo_spec, const std::string &provider="") |
static std::unique_ptr< PasswordHashFamily > | create_or_throw (const std::string &algo_spec, const std::string &provider="") |
static std::vector< std::string > | providers (const std::string &algo_spec) |
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inline |
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staticinherited |
Create an instance based on a name If provider is empty then best available is chosen.
algo_spec | algorithm name |
provider | provider implementation to choose |
Definition at line 33 of file pwdhash.cpp.
References Botan::SCAN_Name::algo_name(), Botan::SCAN_Name::arg(), Botan::SCAN_Name::arg_count(), BOTAN_UNUSED, Botan::HashFunction::create(), Botan::MessageAuthenticationCode::create(), and hash.
Referenced by botan_pwdhash(), botan_pwdhash_timed(), and Botan::PasswordHashFamily::create_or_throw().
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staticinherited |
Create an instance based on a name, or throw if the algo/provider combination cannot be found. If provider is empty then best available is chosen.
Definition at line 101 of file pwdhash.cpp.
References Botan::PasswordHashFamily::create().
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overridevirtual |
Return some default parameter set for this PBKDF that should be good enough for most users. The value returned may change over time as processing power and attacks improve.
Implements Botan::PasswordHashFamily.
Definition at line 188 of file pgp_s2k.cpp.
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overridevirtual |
Return a parameter chosen based on a rough approximation with the specified iteration count. The exact value this returns for a particular algorithm may change from over time. Think of it as an alternative to tune, where time is expressed in terms of PBKDF2 iterations rather than milliseconds.
Implements Botan::PasswordHashFamily.
Definition at line 193 of file pgp_s2k.cpp.
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overridevirtual |
Create a password hash using some scheme specific format. Eg PBKDF2 and PGP-S2K set iterations in i1 Scrypt uses N,r,p in i{1-3} Bcrypt-PBKDF just has iterations Argon2{i,d,id} would use iterations, memory, parallelism for i{1-3}, and Argon2 type is part of the family.
Values not needed should be set to 0
Implements Botan::PasswordHashFamily.
Definition at line 183 of file pgp_s2k.cpp.
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overridevirtual |
Implements Botan::PasswordHashFamily.
Definition at line 154 of file pgp_s2k.cpp.
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staticinherited |
Definition at line 111 of file pwdhash.cpp.
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overridevirtual |
Return a new parameter set tuned for this machine
output_length | how long the output length will be |
msec | the desired execution time in milliseconds |
max_memory_usage_mb | some password hash functions can use a tunable amount of memory, in this case max_memory_usage limits the amount of RAM the returned parameters will require, in mebibytes (2**20 bytes). It may require some small amount above the request. Set to zero to place no limit at all. |
Implements Botan::PasswordHashFamily.
Definition at line 159 of file pgp_s2k.cpp.
References Botan::Timer::bytes_per_second(), Botan::RFC4880_round_iterations(), and Botan::Timer::run_until_elapsed().
Referenced by Botan::OpenPGP_S2K::pbkdf().