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).

1 files changed, 3 insertions, 6 deletions

diff --git a/src/tests/test_rng.cpp b/src/tests/test_rng.cpp
index 48c1fe863..1f8edf332 100644
--- a/src/tests/test_rng.cpp
+++ b/src/tests/test_rng.cpp
@@ -7,8 +7,8 @@
 #include "test_rng.h"
 #include "tests.h"
 
-#include <botan/libstate.h>
 #include <botan/hex.h>
+#include <botan/lookup.h>
 #include <iostream>
 #include <fstream>
 
@@ -41,21 +41,18 @@ RandomNumberGenerator* get_rng(const std::string& algo_str, const std::string& i
 
    const auto ikm = hex_decode(ikm_hex);
 
-   Algorithm_Factory& af = global_state().algorithm_factory();
-
    const auto algo_name = parse_algorithm_name(algo_str);
 
    const std::string rng_name = algo_name[0];
 
 #if defined(BOTAN_HAS_HMAC_DRBG)
    if(rng_name == "HMAC_DRBG")
-      return new HMAC_DRBG(af.make_mac("HMAC(" + algo_name[1] + ")"),
-                               new AllOnce_RNG(ikm));
+      return new HMAC_DRBG(get_mac("HMAC(" + algo_name[1] + ")"), new AllOnce_RNG(ikm));
 #endif
 
 #if defined(BOTAN_HAS_X931_RNG)
    if(rng_name == "X9.31-RNG")
-      return new ANSI_X931_RNG(af.make_block_cipher(algo_name[1]),
+      return new ANSI_X931_RNG(get_block_cipher(algo_name[1]),
                                new Fixed_Output_RNG(ikm));
 #endif