Botan 2.19.3
Crypto and TLS for C&
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#include <pbkdf2.h>
Public Member Functions | |
void | derive_key (uint8_t out[], size_t out_len, const char *password, size_t password_len, const uint8_t salt[], size_t salt_len) const override |
size_t | iterations () const override |
virtual size_t | memory_param () const |
virtual size_t | parallelism () const |
PBKDF2 (const MessageAuthenticationCode &prf, size_t iter) | |
PBKDF2 (const MessageAuthenticationCode &prf, size_t olen, std::chrono::milliseconds msec) | |
std::string | to_string () const override |
virtual size_t | total_memory_usage () const |
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inline |
Botan::PBKDF2::PBKDF2 | ( | const MessageAuthenticationCode & | prf, |
size_t | olen, | ||
std::chrono::milliseconds | msec | ||
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Definition at line 185 of file pbkdf2.cpp.
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overridevirtual |
Derive a key from a password
out | buffer to store the derived key, must be of out_len bytes |
out_len | the desired length of the key to produce |
password | the password to derive the key from |
password_len | the length of password in bytes |
salt | a randomly chosen salt |
salt_len | length of salt in bytes |
This function is const, but is not thread safe. Different threads should either use unique objects, or serialize all access.
Implements Botan::PasswordHash.
Definition at line 195 of file pbkdf2.cpp.
References Botan::pbkdf2(), and salt_len.
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inlineoverridevirtual |
Most password hashes have some notion of iterations.
Implements Botan::PasswordHash.
Definition at line 49 of file pbkdf2.h.
Referenced by Botan::PKCS5_PBKDF2::pbkdf(), and Botan::pbkdf2().
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inlinevirtualinherited |
Some password hashing algorithms have a parameter which controls how much memory is used. If not supported by some algorithm, returns 0.
Reimplemented in Botan::Argon2, Botan::Bcrypt_PBKDF, and Botan::Scrypt.
Definition at line 40 of file pwdhash.h.
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inlinevirtualinherited |
Some password hashing algorithms have a parallelism parameter. If the algorithm does not support this notion, then the function returns zero. This allows distinguishing between a password hash which just does not support parallel operation, vs one that does support parallel operation but which has been configured to use a single lane.
Reimplemented in Botan::Argon2, Botan::Bcrypt_PBKDF, and Botan::Scrypt.
Definition at line 50 of file pwdhash.h.
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overridevirtual |
Implements Botan::PasswordHash.
Definition at line 190 of file pbkdf2.cpp.
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inlinevirtualinherited |
Returns an estimate of the total memory usage required to perform this key derivation.
If this algorithm uses a small and constant amount of memory, with no effort made towards being memory hard, this function returns 0.
Reimplemented in Botan::Argon2, Botan::Bcrypt_PBKDF, and Botan::Scrypt.
Definition at line 59 of file pwdhash.h.