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authorlloyd <[email protected]>2015-02-04 04:03:38 +0000
committerlloyd <[email protected]>2015-02-04 04:03:38 +0000
commit0dd060fed07b0060f94e3bae62e125a85c1bb877 (patch)
treeed4bc7a961e2b30f17ed5e80769c84b0c313c8b7 /src/lib/pubkey/elgamal
parentf9a7c85b74be0f4a7273e8e0591703af83036e81 (diff)
Remove algo factory, engines, global RNG, global state, etc.
Convert all uses of Algorithm_Factory and the engines to using Algo_Registry The shared pool of entropy sources remains but is moved to EntropySource. With that and few remaining initializations (default OIDs and aliases) moved elsewhere, the global state is empty and init and shutdown are no-ops. Remove almost all of the headers and code for handling the global state, except LibraryInitializer which remains as a compatability stub. Update seeding for blinding so only one hacky almost-global RNG instance needs to be setup instead of across all pubkey uses (it uses either the system RNG or an AutoSeeded_RNG if the system RNG is not available).
Diffstat (limited to 'src/lib/pubkey/elgamal')
-rw-r--r--src/lib/pubkey/elgamal/elgamal.cpp16
-rw-r--r--src/lib/pubkey/elgamal/info.txt1
2 files changed, 3 insertions, 14 deletions
diff --git a/src/lib/pubkey/elgamal/elgamal.cpp b/src/lib/pubkey/elgamal/elgamal.cpp
index d59fc1f6b..aacf8ec32 100644
--- a/src/lib/pubkey/elgamal/elgamal.cpp
+++ b/src/lib/pubkey/elgamal/elgamal.cpp
@@ -12,12 +12,6 @@
#include <botan/blinding.h>
#include <botan/workfactor.h>
-#if defined(BOTAN_HAS_SYSTEM_RNG)
- #include <botan/system_rng.h>
-#else
- #include <botan/auto_rng.h>
-#endif
-
namespace Botan {
/*
@@ -155,13 +149,9 @@ ElGamal_Decryption_Operation::ElGamal_Decryption_Operation(const ElGamal_Private
powermod_x_p = Fixed_Exponent_Power_Mod(key.get_x(), p);
mod_p = Modular_Reducer(p);
-#if defined(BOTAN_HAS_SYSTEM_RNG)
- auto& rng = system_rng();
-#else
- AutoSeeded_RNG rng;
-#endif
- BigInt k(rng, p.bits() - 1);
- blinder = Blinder(k, powermod_x_p(k), p);
+ blinder = Blinder(p,
+ [](const BigInt& k) { return k; },
+ [this](const BigInt& k) { return powermod_x_p(k); });
}
secure_vector<byte>
diff --git a/src/lib/pubkey/elgamal/info.txt b/src/lib/pubkey/elgamal/info.txt
index 4fe20e828..068949c66 100644
--- a/src/lib/pubkey/elgamal/info.txt
+++ b/src/lib/pubkey/elgamal/info.txt
@@ -4,6 +4,5 @@ define ELGAMAL 20131128
dl_algo
dl_group
keypair
-libstate
numbertheory
</requires>