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-rw-r--r--old/botan/src/pbe/get_pbe.cpp130
-rw-r--r--old/botan/src/pbe/get_pbe.h33
-rw-r--r--old/botan/src/pbe/info.txt16
-rw-r--r--old/botan/src/pbe/pbes1/info.txt19
-rw-r--r--old/botan/src/pbe/pbes1/pbes1.cpp184
-rw-r--r--old/botan/src/pbe/pbes1/pbes1.h53
-rw-r--r--old/botan/src/pbe/pbes2/info.txt23
-rw-r--r--old/botan/src/pbe/pbes2/pbes2.cpp239
-rw-r--r--old/botan/src/pbe/pbes2/pbes2.h53
9 files changed, 750 insertions, 0 deletions
diff --git a/old/botan/src/pbe/get_pbe.cpp b/old/botan/src/pbe/get_pbe.cpp
new file mode 100644
index 0000000..3217101
--- /dev/null
+++ b/old/botan/src/pbe/get_pbe.cpp
@@ -0,0 +1,130 @@
+/*
+* PBE Retrieval
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/get_pbe.h>
+#include <botan/oids.h>
+#include <botan/scan_name.h>
+#include <botan/parsing.h>
+#include <botan/libstate.h>
+
+#if defined(BOTAN_HAS_PBE_PKCS_V15)
+ #include <botan/pbes1.h>
+#endif
+
+#if defined(BOTAN_HAS_PBE_PKCS_V20)
+ #include <botan/pbes2.h>
+#endif
+
+namespace Botan {
+
+/*
+* Get an encryption PBE, set new parameters
+*/
+PBE* get_pbe(const std::string& algo_spec)
+ {
+ SCAN_Name request(algo_spec);
+
+ const std::string pbe = request.algo_name();
+ std::string digest_name = request.arg(0);
+ const std::string cipher = request.arg(1);
+
+ std::vector<std::string> cipher_spec = split_on(cipher, '/');
+ if(cipher_spec.size() != 2)
+ throw Invalid_Argument("PBE: Invalid cipher spec " + cipher);
+
+ const std::string cipher_algo = global_state().deref_alias(cipher_spec[0]);
+ const std::string cipher_mode = cipher_spec[1];
+
+ if(cipher_mode != "CBC")
+ throw Invalid_Argument("PBE: Invalid cipher mode " + cipher);
+
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ const BlockCipher* block_cipher = af.prototype_block_cipher(cipher_algo);
+ if(!block_cipher)
+ throw Algorithm_Not_Found(cipher_algo);
+
+ const HashFunction* hash_function = af.prototype_hash_function(digest_name);
+ if(!hash_function)
+ throw Algorithm_Not_Found(digest_name);
+
+ if(request.arg_count() != 2)
+ throw Invalid_Algorithm_Name(algo_spec);
+
+#if defined(BOTAN_HAS_PBE_PKCS_V15)
+ if(pbe == "PBE-PKCS5v15")
+ return new PBE_PKCS5v15(block_cipher->clone(),
+ hash_function->clone(),
+ ENCRYPTION);
+#endif
+
+#if defined(BOTAN_HAS_PBE_PKCS_V20)
+ if(pbe == "PBE-PKCS5v20")
+ return new PBE_PKCS5v20(block_cipher->clone(),
+ hash_function->clone());
+#endif
+
+ throw Algorithm_Not_Found(algo_spec);
+ }
+
+/*
+* Get a decryption PBE, decode parameters
+*/
+PBE* get_pbe(const OID& pbe_oid, DataSource& params)
+ {
+ SCAN_Name request(OIDS::lookup(pbe_oid));
+
+ const std::string pbe = request.algo_name();
+
+#if defined(BOTAN_HAS_PBE_PKCS_V15)
+ if(pbe == "PBE-PKCS5v15")
+ {
+ if(request.arg_count() != 2)
+ throw Invalid_Algorithm_Name(request.as_string());
+
+ std::string digest_name = request.arg(0);
+ const std::string cipher = request.arg(1);
+
+ std::vector<std::string> cipher_spec = split_on(cipher, '/');
+ if(cipher_spec.size() != 2)
+ throw Invalid_Argument("PBE: Invalid cipher spec " + cipher);
+
+ const std::string cipher_algo = global_state().deref_alias(cipher_spec[0]);
+ const std::string cipher_mode = cipher_spec[1];
+
+ if(cipher_mode != "CBC")
+ throw Invalid_Argument("PBE: Invalid cipher mode " + cipher);
+
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ const BlockCipher* block_cipher = af.prototype_block_cipher(cipher_algo);
+ if(!block_cipher)
+ throw Algorithm_Not_Found(cipher_algo);
+
+ const HashFunction* hash_function =
+ af.prototype_hash_function(digest_name);
+
+ if(!hash_function)
+ throw Algorithm_Not_Found(digest_name);
+
+ PBE* pbe = new PBE_PKCS5v15(block_cipher->clone(),
+ hash_function->clone(),
+ DECRYPTION);
+ pbe->decode_params(params);
+ return pbe;
+ }
+#endif
+
+#if defined(BOTAN_HAS_PBE_PKCS_V20)
+ if(pbe == "PBE-PKCS5v20")
+ return new PBE_PKCS5v20(params);
+#endif
+
+ throw Algorithm_Not_Found(pbe_oid.as_string());
+ }
+
+}
diff --git a/old/botan/src/pbe/get_pbe.h b/old/botan/src/pbe/get_pbe.h
new file mode 100644
index 0000000..04eda66
--- /dev/null
+++ b/old/botan/src/pbe/get_pbe.h
@@ -0,0 +1,33 @@
+/*
+* PBE Lookup
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_LOOKUP_PBE_H__
+#define BOTAN_LOOKUP_PBE_H__
+
+#include <botan/pbe.h>
+#include <string>
+
+namespace Botan {
+
+/**
+* Factory function for PBEs.
+* @param algo_spec the name of the PBE algorithm to retrieve
+* @return a pointer to a PBE with randomly created parameters
+*/
+BOTAN_DLL PBE* get_pbe(const std::string&);
+
+/**
+* Factory function for PBEs.
+* @param pbe_oid the oid of the desired PBE
+* @param params a DataSource providing the DER encoded parameters to use
+* @return a pointer to the PBE with the specified parameters
+*/
+BOTAN_DLL PBE* get_pbe(const OID&, DataSource&);
+
+}
+
+#endif
diff --git a/old/botan/src/pbe/info.txt b/old/botan/src/pbe/info.txt
new file mode 100644
index 0000000..c4210b2
--- /dev/null
+++ b/old/botan/src/pbe/info.txt
@@ -0,0 +1,16 @@
+realname "PBE Base"
+
+load_on dep
+
+define PASSWORD_BASED_ENCRYPTION
+
+<add>
+get_pbe.cpp
+get_pbe.h
+</add>
+
+<requires>
+filters
+libstate
+oid_lookup
+</requires>
diff --git a/old/botan/src/pbe/pbes1/info.txt b/old/botan/src/pbe/pbes1/info.txt
new file mode 100644
index 0000000..70c6bae
--- /dev/null
+++ b/old/botan/src/pbe/pbes1/info.txt
@@ -0,0 +1,19 @@
+realname "PKCS5 v1.5 PBE"
+
+define PBE_PKCS_V15
+
+load_on auto
+
+<add>
+pbes1.cpp
+pbes1.h
+</add>
+
+<requires>
+asn1
+block
+cbc
+filters
+hash
+pbkdf1
+</requires>
diff --git a/old/botan/src/pbe/pbes1/pbes1.cpp b/old/botan/src/pbe/pbes1/pbes1.cpp
new file mode 100644
index 0000000..21bd330
--- /dev/null
+++ b/old/botan/src/pbe/pbes1/pbes1.cpp
@@ -0,0 +1,184 @@
+/*
+* PKCS #5 PBES1
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/pbes1.h>
+#include <botan/pbkdf1.h>
+#include <botan/der_enc.h>
+#include <botan/ber_dec.h>
+#include <botan/cbc.h>
+#include <algorithm>
+
+namespace Botan {
+
+/*
+* Encrypt some bytes using PBES1
+*/
+void PBE_PKCS5v15::write(const byte input[], u32bit length)
+ {
+ while(length)
+ {
+ u32bit put = std::min(DEFAULT_BUFFERSIZE, length);
+ pipe.write(input, length);
+ flush_pipe(true);
+ length -= put;
+ }
+ }
+
+/*
+* Start encrypting with PBES1
+*/
+void PBE_PKCS5v15::start_msg()
+ {
+ if(direction == ENCRYPTION)
+ pipe.append(new CBC_Encryption(block_cipher->clone(),
+ new PKCS7_Padding,
+ key, iv));
+ else
+ pipe.append(new CBC_Decryption(block_cipher->clone(),
+ new PKCS7_Padding,
+ key, iv));
+
+ pipe.start_msg();
+ if(pipe.message_count() > 1)
+ pipe.set_default_msg(pipe.default_msg() + 1);
+ }
+
+/*
+* Finish encrypting with PBES1
+*/
+void PBE_PKCS5v15::end_msg()
+ {
+ pipe.end_msg();
+ flush_pipe(false);
+ pipe.reset();
+ }
+
+/*
+* Flush the pipe
+*/
+void PBE_PKCS5v15::flush_pipe(bool safe_to_skip)
+ {
+ if(safe_to_skip && pipe.remaining() < 64)
+ return;
+
+ SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+ while(pipe.remaining())
+ {
+ u32bit got = pipe.read(buffer, buffer.size());
+ send(buffer, got);
+ }
+ }
+
+/*
+* Set the passphrase to use
+*/
+void PBE_PKCS5v15::set_key(const std::string& passphrase)
+ {
+ PKCS5_PBKDF1 pbkdf(hash_function->clone());
+
+ pbkdf.set_iterations(iterations);
+ pbkdf.change_salt(salt, salt.size());
+ SymmetricKey key_and_iv = pbkdf.derive_key(16, passphrase);
+
+ key.set(key_and_iv.begin(), 8);
+ iv.set(key_and_iv.begin() + 8, 8);
+ }
+
+/*
+* Create a new set of PBES1 parameters
+*/
+void PBE_PKCS5v15::new_params(RandomNumberGenerator& rng)
+ {
+ iterations = 2048;
+ salt.create(8);
+ rng.randomize(salt, salt.size());
+ }
+
+/*
+* Encode PKCS#5 PBES1 parameters
+*/
+MemoryVector<byte> PBE_PKCS5v15::encode_params() const
+ {
+ return DER_Encoder()
+ .start_cons(SEQUENCE)
+ .encode(salt, OCTET_STRING)
+ .encode(iterations)
+ .end_cons()
+ .get_contents();
+ }
+
+/*
+* Decode PKCS#5 PBES1 parameters
+*/
+void PBE_PKCS5v15::decode_params(DataSource& source)
+ {
+ BER_Decoder(source)
+ .start_cons(SEQUENCE)
+ .decode(salt, OCTET_STRING)
+ .decode(iterations)
+ .verify_end()
+ .end_cons();
+
+ if(salt.size() != 8)
+ throw Decoding_Error("PBES1: Encoded salt is not 8 octets");
+ }
+
+/*
+* Return an OID for this PBES1 type
+*/
+OID PBE_PKCS5v15::get_oid() const
+ {
+ const OID base_pbes1_oid("1.2.840.113549.1.5");
+
+ const std::string cipher = block_cipher->name();
+ const std::string digest = hash_function->name();
+
+ if(cipher == "DES" && digest == "MD2")
+ return (base_pbes1_oid + 1);
+ else if(cipher == "DES" && digest == "MD5")
+ return (base_pbes1_oid + 3);
+ else if(cipher == "DES" && digest == "SHA-160")
+ return (base_pbes1_oid + 10);
+ else if(cipher == "RC2" && digest == "MD2")
+ return (base_pbes1_oid + 4);
+ else if(cipher == "RC2" && digest == "MD5")
+ return (base_pbes1_oid + 6);
+ else if(cipher == "RC2" && digest == "SHA-160")
+ return (base_pbes1_oid + 11);
+ else
+ throw Internal_Error("PBE-PKCS5 v1.5: get_oid() has run out of options");
+ }
+
+/*
+* PKCS#5 v1.5 PBE Constructor
+*/
+PBE_PKCS5v15::PBE_PKCS5v15(BlockCipher* cipher,
+ HashFunction* hash,
+ Cipher_Dir dir) :
+ direction(dir), block_cipher(cipher), hash_function(hash)
+ {
+ if(cipher->name() != "DES" && cipher->name() != "RC2")
+ {
+ throw Invalid_Argument("PBE_PKCS5v1.5: Unknown cipher " +
+ cipher->name());
+ }
+
+ if(hash->name() != "MD2" && hash->name() != "MD5" &&
+ hash->name() != "SHA-160")
+ {
+ throw Invalid_Argument("PBE_PKCS5v1.5: Unknown hash " +
+ hash->name());
+ }
+ }
+
+PBE_PKCS5v15::~PBE_PKCS5v15()
+ {
+ delete block_cipher;
+ delete hash_function;
+ }
+
+}
diff --git a/old/botan/src/pbe/pbes1/pbes1.h b/old/botan/src/pbe/pbes1/pbes1.h
new file mode 100644
index 0000000..2e1855d
--- /dev/null
+++ b/old/botan/src/pbe/pbes1/pbes1.h
@@ -0,0 +1,53 @@
+/*
+* PKCS #5 v1.5 PBE
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_PBE_PKCS_V15_H__
+#define BOTAN_PBE_PKCS_V15_H__
+
+#include <botan/pbe.h>
+#include <botan/block_cipher.h>
+#include <botan/hash.h>
+#include <botan/pipe.h>
+
+namespace Botan {
+
+/*
+* PKCS#5 v1.5 PBE
+*/
+class BOTAN_DLL PBE_PKCS5v15 : public PBE
+ {
+ public:
+ void write(const byte[], u32bit);
+ void start_msg();
+ void end_msg();
+
+ PBE_PKCS5v15(BlockCipher* cipher,
+ HashFunction* hash,
+ Cipher_Dir);
+
+ ~PBE_PKCS5v15();
+ private:
+ void set_key(const std::string&);
+ void new_params(RandomNumberGenerator& rng);
+ MemoryVector<byte> encode_params() const;
+ void decode_params(DataSource&);
+ OID get_oid() const;
+
+ void flush_pipe(bool);
+
+ Cipher_Dir direction;
+ BlockCipher* block_cipher;
+ HashFunction* hash_function;
+
+ SecureVector<byte> salt, key, iv;
+ u32bit iterations;
+ Pipe pipe;
+ };
+
+}
+
+#endif
diff --git a/old/botan/src/pbe/pbes2/info.txt b/old/botan/src/pbe/pbes2/info.txt
new file mode 100644
index 0000000..cd37b1e
--- /dev/null
+++ b/old/botan/src/pbe/pbes2/info.txt
@@ -0,0 +1,23 @@
+realname "PKCS5 v2.0 PBE"
+
+define PBE_PKCS_V20
+
+load_on auto
+
+<add>
+pbes2.cpp
+pbes2.h
+</add>
+
+<requires>
+algo_factory
+asn1
+block
+cbc
+filters
+hash
+hmac
+libstate
+oid_lookup
+pbkdf2
+</requires>
diff --git a/old/botan/src/pbe/pbes2/pbes2.cpp b/old/botan/src/pbe/pbes2/pbes2.cpp
new file mode 100644
index 0000000..b7e2589
--- /dev/null
+++ b/old/botan/src/pbe/pbes2/pbes2.cpp
@@ -0,0 +1,239 @@
+/**
+* PKCS #5 PBES2
+* (C) 1999-2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/pbes2.h>
+#include <botan/pbkdf2.h>
+#include <botan/hmac.h>
+#include <botan/cbc.h>
+#include <botan/algo_factory.h>
+#include <botan/libstate.h>
+#include <botan/der_enc.h>
+#include <botan/ber_dec.h>
+#include <botan/parsing.h>
+#include <botan/asn1_obj.h>
+#include <botan/oids.h>
+#include <algorithm>
+#include <memory>
+
+namespace Botan {
+
+/**
+* Encrypt some bytes using PBES2
+*/
+void PBE_PKCS5v20::write(const byte input[], u32bit length)
+ {
+ while(length)
+ {
+ u32bit put = std::min(DEFAULT_BUFFERSIZE, length);
+ pipe.write(input, length);
+ flush_pipe(true);
+ length -= put;
+ }
+ }
+
+/**
+* Start encrypting with PBES2
+*/
+void PBE_PKCS5v20::start_msg()
+ {
+ if(direction == ENCRYPTION)
+ pipe.append(new CBC_Encryption(block_cipher->clone(),
+ new PKCS7_Padding,
+ key, iv));
+ else
+ pipe.append(new CBC_Decryption(block_cipher->clone(),
+ new PKCS7_Padding,
+ key, iv));
+
+ pipe.start_msg();
+ if(pipe.message_count() > 1)
+ pipe.set_default_msg(pipe.default_msg() + 1);
+ }
+
+/**
+* Finish encrypting with PBES2
+*/
+void PBE_PKCS5v20::end_msg()
+ {
+ pipe.end_msg();
+ flush_pipe(false);
+ pipe.reset();
+ }
+
+/**
+* Flush the pipe
+*/
+void PBE_PKCS5v20::flush_pipe(bool safe_to_skip)
+ {
+ if(safe_to_skip && pipe.remaining() < 64)
+ return;
+
+ SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+ while(pipe.remaining())
+ {
+ u32bit got = pipe.read(buffer, buffer.size());
+ send(buffer, got);
+ }
+ }
+
+/**
+* Set the passphrase to use
+*/
+void PBE_PKCS5v20::set_key(const std::string& passphrase)
+ {
+ PKCS5_PBKDF2 pbkdf(new HMAC(hash_function->clone()));
+
+ pbkdf.set_iterations(iterations);
+ pbkdf.change_salt(salt, salt.size());
+ key = pbkdf.derive_key(key_length, passphrase).bits_of();
+ }
+
+/**
+* Create a new set of PBES2 parameters
+*/
+void PBE_PKCS5v20::new_params(RandomNumberGenerator& rng)
+ {
+ iterations = 2048;
+ key_length = block_cipher->MAXIMUM_KEYLENGTH;
+
+ salt.create(8);
+ rng.randomize(salt, salt.size());
+
+ iv.create(block_cipher->BLOCK_SIZE);
+ rng.randomize(iv, iv.size());
+ }
+
+/**
+* Encode PKCS#5 PBES2 parameters
+*/
+MemoryVector<byte> PBE_PKCS5v20::encode_params() const
+ {
+ return DER_Encoder()
+ .start_cons(SEQUENCE)
+ .encode(
+ AlgorithmIdentifier("PKCS5.PBKDF2",
+ DER_Encoder()
+ .start_cons(SEQUENCE)
+ .encode(salt, OCTET_STRING)
+ .encode(iterations)
+ .encode(key_length)
+ .end_cons()
+ .get_contents()
+ )
+ )
+ .encode(
+ AlgorithmIdentifier(block_cipher->name() + "/CBC",
+ DER_Encoder()
+ .encode(iv, OCTET_STRING)
+ .get_contents()
+ )
+ )
+ .end_cons()
+ .get_contents();
+ }
+
+/**
+* Decode PKCS#5 PBES2 parameters
+*/
+void PBE_PKCS5v20::decode_params(DataSource& source)
+ {
+ AlgorithmIdentifier kdf_algo, enc_algo;
+
+ BER_Decoder(source)
+ .start_cons(SEQUENCE)
+ .decode(kdf_algo)
+ .decode(enc_algo)
+ .verify_end()
+ .end_cons();
+
+ if(kdf_algo.oid == OIDS::lookup("PKCS5.PBKDF2"))
+ {
+ BER_Decoder(kdf_algo.parameters)
+ .start_cons(SEQUENCE)
+ .decode(salt, OCTET_STRING)
+ .decode(iterations)
+ .decode_optional(key_length, INTEGER, UNIVERSAL)
+ .verify_end()
+ .end_cons();
+ }
+ else
+ throw Decoding_Error("PBE-PKCS5 v2.0: Unknown KDF algorithm " +
+ kdf_algo.oid.as_string());
+
+ Algorithm_Factory& af = global_state().algorithm_factory();
+
+ std::string cipher = OIDS::lookup(enc_algo.oid);
+ std::vector<std::string> cipher_spec = split_on(cipher, '/');
+ if(cipher_spec.size() != 2)
+ throw Decoding_Error("PBE-PKCS5 v2.0: Invalid cipher spec " + cipher);
+
+ if(!known_cipher(cipher_spec[0]) || cipher_spec[1] != "CBC")
+ throw Decoding_Error("PBE-PKCS5 v2.0: Don't know param format for " +
+ cipher);
+
+ BER_Decoder(enc_algo.parameters).decode(iv, OCTET_STRING).verify_end();
+
+ block_cipher = af.make_block_cipher(cipher_spec[0]);
+ hash_function = af.make_hash_function("SHA-160");
+
+ if(key_length == 0)
+ key_length = block_cipher->MAXIMUM_KEYLENGTH;
+
+ if(salt.size() < 8)
+ throw Decoding_Error("PBE-PKCS5 v2.0: Encoded salt is too small");
+ }
+
+/**
+* Return an OID for PBES2
+*/
+OID PBE_PKCS5v20::get_oid() const
+ {
+ return OIDS::lookup("PBE-PKCS5v20");
+ }
+
+/**
+* Check if this is a known PBES2 cipher
+*/
+bool PBE_PKCS5v20::known_cipher(const std::string& algo)
+ {
+ if(algo == "AES-128" || algo == "AES-192" || algo == "AES-256")
+ return true;
+ if(algo == "DES" || algo == "TripleDES")
+ return true;
+ return false;
+ }
+
+/**
+* PKCS#5 v2.0 PBE Constructor
+*/
+PBE_PKCS5v20::PBE_PKCS5v20(BlockCipher* cipher,
+ HashFunction* digest) :
+ direction(ENCRYPTION), block_cipher(cipher), hash_function(digest)
+ {
+ if(!known_cipher(block_cipher->name()))
+ throw Invalid_Argument("PBE-PKCS5 v2.0: Invalid cipher " + cipher->name());
+ if(hash_function->name() != "SHA-160")
+ throw Invalid_Argument("PBE-PKCS5 v2.0: Invalid digest " + digest->name());
+ }
+
+/**
+* PKCS#5 v2.0 PBE Constructor
+*/
+PBE_PKCS5v20::PBE_PKCS5v20(DataSource& params) : direction(DECRYPTION)
+ {
+ hash_function = 0;
+ block_cipher = 0;
+ decode_params(params);
+ }
+
+PBE_PKCS5v20::~PBE_PKCS5v20()
+ {
+ delete hash_function;
+ delete block_cipher;
+ }
+
+}
diff --git a/old/botan/src/pbe/pbes2/pbes2.h b/old/botan/src/pbe/pbes2/pbes2.h
new file mode 100644
index 0000000..fc460a2
--- /dev/null
+++ b/old/botan/src/pbe/pbes2/pbes2.h
@@ -0,0 +1,53 @@
+/*
+* PKCS #5 v2.0 PBE
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_PBE_PKCS_v20_H__
+#define BOTAN_PBE_PKCS_v20_H__
+
+#include <botan/pbe.h>
+#include <botan/block_cipher.h>
+#include <botan/hash.h>
+#include <botan/pipe.h>
+
+namespace Botan {
+
+/*
+* PKCS#5 v2.0 PBE
+*/
+class BOTAN_DLL PBE_PKCS5v20 : public PBE
+ {
+ public:
+ static bool known_cipher(const std::string&);
+
+ void write(const byte[], u32bit);
+ void start_msg();
+ void end_msg();
+
+ PBE_PKCS5v20(DataSource&);
+ PBE_PKCS5v20(BlockCipher*, HashFunction*);
+
+ ~PBE_PKCS5v20();
+ private:
+ void set_key(const std::string&);
+ void new_params(RandomNumberGenerator& rng);
+ MemoryVector<byte> encode_params() const;
+ void decode_params(DataSource&);
+ OID get_oid() const;
+
+ void flush_pipe(bool);
+
+ Cipher_Dir direction;
+ BlockCipher* block_cipher;
+ HashFunction* hash_function;
+ SecureVector<byte> salt, key, iv;
+ u32bit iterations, key_length;
+ Pipe pipe;
+ };
+
+}
+
+#endif
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