Botan
2.1.0
Crypto and TLS for C++11
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#include <pow_mod.h>
Public Types | |
enum | Usage_Hints { NO_HINTS = 0x0000, BASE_IS_FIXED = 0x0001, BASE_IS_SMALL = 0x0002, BASE_IS_LARGE = 0x0004, BASE_IS_2 = 0x0008, EXP_IS_FIXED = 0x0100, EXP_IS_SMALL = 0x0200, EXP_IS_LARGE = 0x0400 } |
Public Member Functions | |
BigInt | execute () const |
Fixed_Exponent_Power_Mod ()=default | |
Fixed_Exponent_Power_Mod (const BigInt &exponent, const BigInt &modulus, Usage_Hints hints=NO_HINTS) | |
BigInt | operator() (const BigInt &b) const |
void | set_base (const BigInt &base) const |
void | set_exponent (const BigInt &exponent) const |
void | set_modulus (const BigInt &modulus, Usage_Hints=NO_HINTS, bool disable_montgomery_arith=false) const |
Static Public Member Functions | |
static size_t | window_bits (size_t exp_bits, size_t base_bits, Power_Mod::Usage_Hints hints) |
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inherited |
Enumerator | |
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NO_HINTS | |
BASE_IS_FIXED | |
BASE_IS_SMALL | |
BASE_IS_LARGE | |
BASE_IS_2 | |
EXP_IS_FIXED | |
EXP_IS_SMALL | |
EXP_IS_LARGE |
Definition at line 39 of file pow_mod.h.
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default |
Botan::Fixed_Exponent_Power_Mod::Fixed_Exponent_Power_Mod | ( | const BigInt & | exponent, |
const BigInt & | modulus, | ||
Usage_Hints | hints = NO_HINTS |
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) |
Definition at line 193 of file pow_mod.cpp.
References Botan::Power_Mod::set_exponent().
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inherited |
All three of the above functions must have already been called.
Definition at line 107 of file pow_mod.cpp.
References Botan::Modular_Exponentiator::execute().
Referenced by Botan::power_mod().
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inherited |
Set the base
Definition at line 81 of file pow_mod.cpp.
References Botan::BigInt::is_negative(), Botan::BigInt::is_zero(), and Botan::Modular_Exponentiator::set_base().
Referenced by Botan::Fixed_Base_Power_Mod::Fixed_Base_Power_Mod(), and Botan::power_mod().
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inherited |
Set the exponent
Definition at line 94 of file pow_mod.cpp.
References Botan::BigInt::is_negative(), and Botan::Modular_Exponentiator::set_exponent().
Referenced by Fixed_Exponent_Power_Mod(), and Botan::power_mod().
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inherited |
modulus | the modulus |
hints | Passed to set_modulus if modulus > 0 |
disable_montgomery_arith | Disables use of Montgomery representation. Likely only useful for testing. |
Definition at line 61 of file pow_mod.cpp.
References Botan::BigInt::is_odd().
Referenced by Botan::Power_Mod::Power_Mod().
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staticinherited |
Definition at line 117 of file pow_mod.cpp.
References Botan::Power_Mod::BASE_IS_FIXED, and Botan::Power_Mod::EXP_IS_LARGE.
Referenced by Botan::Fixed_Window_Exponentiator::set_base(), and Botan::Montgomery_Exponentiator::set_base().