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authorlloyd <[email protected]>2008-10-26 02:18:05 +0000
committerlloyd <[email protected]>2008-10-26 02:18:05 +0000
commit17231ebbb95cc45cca50eabc4799c3058fc78ee9 (patch)
tree72b419fcd6a398463ccd0f763dc8bc639ab88b5c /src/libstate/lookup.h
parent6f2a68c40d85026da907c8ce5366998f14a99d9c (diff)
Move libstate and selftest out of core/ dir to toplevel
Diffstat (limited to 'src/libstate/lookup.h')
-rw-r--r--src/libstate/lookup.h244
1 files changed, 244 insertions, 0 deletions
diff --git a/src/libstate/lookup.h b/src/libstate/lookup.h
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+/*************************************************
+* Algorithm Lookup Header File *
+* (C) 1999-2007 Jack Lloyd *
+*************************************************/
+
+#ifndef BOTAN_LOOKUP_H__
+#define BOTAN_LOOKUP_H__
+
+#include <botan/base.h>
+#include <botan/enums.h>
+#include <botan/filters.h>
+#include <botan/mode_pad.h>
+#include <botan/kdf.h>
+#include <botan/pk_pad.h>
+#include <botan/libstate.h>
+#include <botan/s2k.h>
+
+namespace Botan {
+
+/*************************************************
+* Retrieve an object from the lookup table *
+*************************************************/
+// NOTE: these functions return internally stored objects, library retains ownership
+
+BOTAN_DLL const BlockCipher*
+retrieve_block_cipher(Library_State&, const std::string&);
+
+BOTAN_DLL const StreamCipher*
+retrieve_stream_cipher(Library_State&, const std::string&);
+
+BOTAN_DLL const HashFunction*
+retrieve_hash(Library_State&, const std::string&);
+
+BOTAN_DLL const MessageAuthenticationCode*
+retrieve_mac(Library_State&, const std::string&);
+
+BOTAN_DLL const S2K* retrieve_s2k(Library_State&, const std::string&);
+
+BOTAN_DLL const BlockCipherModePaddingMethod*
+retrieve_bc_pad(Library_State&, const std::string&);
+
+/*************************************************
+* Get an algorithm object *
+*************************************************/
+// NOTE: these functions create and return new objects, letting the caller assume ownership of them
+
+/**
+* Block cipher factory method.
+* @param name the name of the desired block cipher
+* @return the block cipher object
+*/
+BOTAN_DLL BlockCipher* get_block_cipher(const std::string& name);
+
+
+/**
+* Stream cipher factory method.
+* @param name the name of the desired stream cipher
+* @return the stream cipher object
+*/
+BOTAN_DLL StreamCipher* get_stream_cipher(const std::string& name);
+
+/**
+* Hash function factory method.
+* @param name the name of the desired hash function
+* @return the hash function object
+*/
+BOTAN_DLL HashFunction* get_hash(const std::string& name);
+
+/**
+* MAC factory method.
+* @param name the name of the desired MAC
+* @return the MAC object
+*/
+BOTAN_DLL MessageAuthenticationCode* get_mac(const std::string& name);
+
+/**
+* String to key algorithm factory method.
+* @param name the name of the desired string to key (S2K) algorithm
+* @return the string to key algorithm object
+*/
+BOTAN_DLL S2K* get_s2k(const std::string& name);
+
+/**
+* Block cipher padding mode factory/retrieval method.
+* @param name the name of the desired block cipher padding mode
+* @return the block cipher padding mode object
+*/
+BOTAN_DLL const BlockCipherModePaddingMethod* get_bc_pad(const std::string& name);
+
+/*************************************************
+* Get an EMSA/EME/KDF/MGF function *
+*************************************************/
+// NOTE: these functions create and return new objects, letting the caller assume ownership of them
+
+/**
+* Factory method for EME (message-encoding methods for encryption) objects
+* @param name the name of the EME to create
+* @return the desired EME object
+*/
+BOTAN_DLL EME* get_eme(const std::string& name);
+
+/**
+* Factory method for EMSA (message-encoding methods for signatures with appendix) objects
+* @param name the name of the EME to create
+* @return the desired EME object
+*/
+BOTAN_DLL EMSA* get_emsa(const std::string& name);
+
+/**
+* Factory method for MGF (mask generation function)
+* @param name the name of the MGF to create
+* @return the desired MGF object
+*/
+BOTAN_DLL MGF* get_mgf(const std::string& name);
+
+/**
+* Factory method for KDF (key derivation function)
+* @param name the name of the KDF to create
+* @return the desired KDF object
+*/
+BOTAN_DLL KDF* get_kdf(const std::string& name);
+
+/*************************************************
+* Get a cipher object *
+*************************************************/
+
+/**
+* Factory method for general symmetric cipher filters.
+* @param name the name of the desired cipher
+* @param key the key to be used for encryption/decryption performed by the filter
+* @param iv the initialization vector to be used
+* @param dir determines whether the filter will be an encrypting or decrypting
+* filter
+* @return the encryption or decryption filter
+*/
+BOTAN_DLL Keyed_Filter* get_cipher(const std::string& name,
+ const SymmetricKey& key,
+ const InitializationVector& iv,
+ Cipher_Dir dir);
+/**
+* Factory method for general symmetric cipher filters.
+* @param name the name of the desired cipher
+* @param key the key to be used for encryption/decryption performed by the filter
+* @param dir determines whether the filter will be an encrypting or decrypting
+* filter
+* @return the encryption or decryption filter
+*/
+BOTAN_DLL Keyed_Filter* get_cipher(const std::string& name,
+ const SymmetricKey& key,
+ Cipher_Dir dir);
+
+/** Factory method for general symmetric cipher filters. No key will
+* be set in the filter.
+* @param name the name of the desired cipher
+* @param dir determines whether the filter will be an encrypting or decrypting filter
+* @return the encryption or decryption filter
+*/
+BOTAN_DLL Keyed_Filter* get_cipher(const std::string& name, Cipher_Dir dir);
+
+/**
+* Check if an algorithm exists.
+* @param name the name of the algorithm to check for
+* @return true if the algorithm exists, false otherwise
+*/
+BOTAN_DLL bool have_algorithm(const std::string& name);
+
+/**
+* Check if a block cipher algorithm exists.
+* @param name the name of the algorithm to check for
+* @return true if the algorithm exists, false otherwise
+*/
+BOTAN_DLL bool have_block_cipher(const std::string& name);
+
+/**
+* Check if a stream cipher algorithm exists.
+* @param name the name of the algorithm to check for
+* @return true if the algorithm exists, false otherwise
+*/
+BOTAN_DLL bool have_stream_cipher(const std::string& name);
+
+/**
+* Check if a hash algorithm exists.
+* @param name the name of the algorithm to check for
+* @return true if the algorithm exists, false otherwise
+*/
+BOTAN_DLL bool have_hash(const std::string& name);
+
+/**
+* Check if a MAC algorithm exists.
+* @param name the name of the algorithm to check for
+* @return true if the algorithm exists, false otherwise
+*/
+BOTAN_DLL bool have_mac(const std::string& name);
+
+/*************************************************
+* Query information about an algorithm *
+*************************************************/
+
+/**
+* Find out the block size of a certain symmetric algorithm.
+* @param name the name of the algorithm
+* @return the block size of the specified algorithm
+*/
+BOTAN_DLL u32bit block_size_of(const std::string& name);
+
+/**
+* Find out the output length of a certain symmetric algorithm.
+* @param name the name of the algorithm
+* @return the output length of the specified algorithm
+*/
+BOTAN_DLL u32bit output_length_of(const std::string& name);
+
+/**
+* Find out the whether a certain key length is allowd for a given symmetric algorithm.
+* @param keylen the key length in question
+* @param name the name of the algorithm
+* @return true if the key length is valid for that algorithm, false otherwise
+*/
+BOTAN_DLL bool valid_keylength_for(u32bit keylen, const std::string& name);
+
+/**
+* Find out the minimum key size of a certain symmetric algorithm.
+* @param name the name of the algorithm
+* @return the minimum key length of the specified algorithm
+*/
+BOTAN_DLL u32bit min_keylength_of(const std::string& name);
+
+/**
+* Find out the maximum key size of a certain symmetric algorithm.
+* @param name the name of the algorithm
+* @return the maximum key length of the specified algorithm
+*/
+BOTAN_DLL u32bit max_keylength_of(const std::string& name);
+
+/**
+* Find out the size any valid key is a multiple of for a certain algorithm.
+* @param name the name of the algorithm
+* @return the size any valid key is a multiple of
+*/
+BOTAN_DLL u32bit keylength_multiple_of(const std::string& name);
+
+}
+
+#endif