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-rw-r--r--src/libstate/lookup.cpp179
1 files changed, 35 insertions, 144 deletions
diff --git a/src/libstate/lookup.cpp b/src/libstate/lookup.cpp
index 9016dbe6e..01f4a3d42 100644
--- a/src/libstate/lookup.cpp
+++ b/src/libstate/lookup.cpp
@@ -12,138 +12,34 @@
namespace Botan {
/**
-* Acquire a block cipher
-*/
-const BlockCipher* retrieve_block_cipher(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.prototype_block_cipher(algo_spec);
- }
-
-/**
-* Get a block cipher by name
-*/
-BlockCipher* get_block_cipher(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.make_block_cipher(algo_spec);
- }
-
-/**
-* Acquire a stream cipher
-*/
-const StreamCipher* retrieve_stream_cipher(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.prototype_stream_cipher(algo_spec);
- }
-
-/**
-* Get a stream cipher by name
-*/
-StreamCipher* get_stream_cipher(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.make_stream_cipher(algo_spec);
- }
-
-/**
-* Acquire a hash function
-*/
-const HashFunction* retrieve_hash(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.prototype_hash_function(algo_spec);
- }
-
-/**
-* Get a hash function by name
-*/
-HashFunction* get_hash(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.make_hash_function(algo_spec);
- }
-
-/**
-* Query if Botan has the named hash function
-*/
-bool have_hash(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return (af.prototype_hash_function(algo_spec) != 0);
- }
-
-/**
-* Acquire an authentication code
-*/
-const MessageAuthenticationCode* retrieve_mac(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.prototype_mac(algo_spec);
- }
-
-/**
-* Get a MAC by name
-*/
-MessageAuthenticationCode* get_mac(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return af.make_mac(algo_spec);
- }
-
-/**
-* Query if Botan has the named MAC
-*/
-bool have_mac(const std::string& algo_spec)
- {
- Algorithm_Factory& af = global_state().algorithm_factory();
- return (af.prototype_mac(algo_spec) != 0);
- }
-
-/**
* Query if an algorithm exists
*/
bool have_algorithm(const std::string& name)
{
- if(retrieve_block_cipher(name))
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(af.prototype_block_cipher(name))
return true;
- if(retrieve_stream_cipher(name))
+ if(af.prototype_stream_cipher(name))
return true;
- if(retrieve_hash(name))
+ if(af.prototype_hash_function(name))
return true;
- if(retrieve_mac(name))
+ if(af.prototype_mac(name))
return true;
return false;
}
/**
-* Query if Botan has the named block cipher
-*/
-bool have_block_cipher(const std::string& name)
- {
- return (retrieve_block_cipher(name) != 0);
- }
-
-/**
-* Query if Botan has the named stream cipher
-*/
-bool have_stream_cipher(const std::string& name)
- {
- return (retrieve_stream_cipher(name) != 0);
- }
-
-/**
* Query the block size of a cipher or hash
*/
u32bit block_size_of(const std::string& name)
{
- const BlockCipher* cipher = retrieve_block_cipher(name);
- if(cipher)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const BlockCipher* cipher = af.prototype_block_cipher(name))
return cipher->BLOCK_SIZE;
- const HashFunction* hash = retrieve_hash(name);
- if(hash)
+ if(const HashFunction* hash = af.prototype_hash_function(name))
return hash->HASH_BLOCK_SIZE;
throw Algorithm_Not_Found(name);
@@ -154,12 +50,12 @@ u32bit block_size_of(const std::string& name)
*/
u32bit output_length_of(const std::string& name)
{
- const HashFunction* hash = retrieve_hash(name);
- if(hash)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const HashFunction* hash = af.prototype_hash_function(name))
return hash->OUTPUT_LENGTH;
- const MessageAuthenticationCode* mac = retrieve_mac(name);
- if(mac)
+ if(const MessageAuthenticationCode* mac = af.prototype_mac(name))
return mac->OUTPUT_LENGTH;
throw Algorithm_Not_Found(name);
@@ -170,16 +66,15 @@ u32bit output_length_of(const std::string& name)
*/
bool valid_keylength_for(u32bit key_len, const std::string& name)
{
- const BlockCipher* bc = retrieve_block_cipher(name);
- if(bc)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const BlockCipher* bc = af.prototype_block_cipher(name))
return bc->valid_keylength(key_len);
- const StreamCipher* sc = retrieve_stream_cipher(name);
- if(sc)
+ if(const StreamCipher* sc = af.prototype_stream_cipher(name))
return sc->valid_keylength(key_len);
- const MessageAuthenticationCode* mac = retrieve_mac(name);
- if(mac)
+ if(const MessageAuthenticationCode* mac = af.prototype_mac(name))
return mac->valid_keylength(key_len);
throw Algorithm_Not_Found(name);
@@ -190,16 +85,15 @@ bool valid_keylength_for(u32bit key_len, const std::string& name)
*/
u32bit min_keylength_of(const std::string& name)
{
- const BlockCipher* bc = retrieve_block_cipher(name);
- if(bc)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const BlockCipher* bc = af.prototype_block_cipher(name))
return bc->MINIMUM_KEYLENGTH;
- const StreamCipher* sc = retrieve_stream_cipher(name);
- if(sc)
+ if(const StreamCipher* sc = af.prototype_stream_cipher(name))
return sc->MINIMUM_KEYLENGTH;
- const MessageAuthenticationCode* mac = retrieve_mac(name);
- if(mac)
+ if(const MessageAuthenticationCode* mac = af.prototype_mac(name))
return mac->MINIMUM_KEYLENGTH;
throw Algorithm_Not_Found(name);
@@ -210,16 +104,15 @@ u32bit min_keylength_of(const std::string& name)
*/
u32bit max_keylength_of(const std::string& name)
{
- const BlockCipher* bc = retrieve_block_cipher(name);
- if(bc)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const BlockCipher* bc = af.prototype_block_cipher(name))
return bc->MAXIMUM_KEYLENGTH;
- const StreamCipher* sc = retrieve_stream_cipher(name);
- if(sc)
+ if(const StreamCipher* sc = af.prototype_stream_cipher(name))
return sc->MAXIMUM_KEYLENGTH;
- const MessageAuthenticationCode* mac = retrieve_mac(name);
- if(mac)
+ if(const MessageAuthenticationCode* mac = af.prototype_mac(name))
return mac->MAXIMUM_KEYLENGTH;
throw Algorithm_Not_Found(name);
@@ -230,16 +123,15 @@ u32bit max_keylength_of(const std::string& name)
*/
u32bit keylength_multiple_of(const std::string& name)
{
- const BlockCipher* bc = retrieve_block_cipher(name);
- if(bc)
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ if(const BlockCipher* bc = af.prototype_block_cipher(name))
return bc->KEYLENGTH_MULTIPLE;
- const StreamCipher* sc = retrieve_stream_cipher(name);
- if(sc)
+ if(const StreamCipher* sc = af.prototype_stream_cipher(name))
return sc->KEYLENGTH_MULTIPLE;
- const MessageAuthenticationCode* mac = retrieve_mac(name);
- if(mac)
+ if(const MessageAuthenticationCode* mac = af.prototype_mac(name))
return mac->KEYLENGTH_MULTIPLE;
throw Algorithm_Not_Found(name);
@@ -257,8 +149,7 @@ Keyed_Filter* get_cipher(const std::string& algo_spec,
while(Engine* engine = i.next())
{
- Keyed_Filter* algo = engine->get_cipher(algo_spec, direction, af);
- if(algo)
+ if(Keyed_Filter* algo = engine->get_cipher(algo_spec, direction, af))
return algo;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 16:53:00 +0000