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-rw-r--r--src/lib/entropy/proc_walk/proc_walk.cpp30
-rw-r--r--src/lib/entropy/proc_walk/proc_walk.h10
-rw-r--r--src/lib/kdf/kdf.h14
-rw-r--r--src/lib/kdf/kdf1/kdf1.h6
-rw-r--r--src/lib/kdf/kdf2/kdf2.h5
-rw-r--r--src/lib/kdf/mgf1/mgf1.cpp56
-rw-r--r--src/lib/kdf/mgf1/mgf1.h36
-rw-r--r--src/lib/kdf/prf_ssl3/prf_ssl3.h1
-rw-r--r--src/lib/kdf/prf_tls/prf_tls.cpp35
-rw-r--r--src/lib/kdf/prf_tls/prf_tls.h10
-rw-r--r--src/lib/mac/ssl3mac/ssl3_mac.h5
-rw-r--r--src/lib/pbkdf/pbkdf1/pbkdf1.h12
-rw-r--r--src/lib/pbkdf/pbkdf2/pbkdf2.h10
-rw-r--r--src/lib/pk_pad/eme1/eme1.cpp40
-rw-r--r--src/lib/pk_pad/eme1/eme1.h7
-rw-r--r--src/lib/pk_pad/eme1/info.txt1
-rw-r--r--src/lib/pk_pad/emsa4/emsa4.cpp7
-rw-r--r--src/lib/pk_pad/emsa4/emsa4.h21
-rw-r--r--src/lib/pk_pad/emsa4/info.txt1
-rw-r--r--src/lib/pk_pad/mgf1/info.txt (renamed from src/lib/kdf/mgf1/info.txt)2
-rw-r--r--src/lib/pk_pad/mgf1/mgf1.cpp36
-rw-r--r--src/lib/pk_pad/mgf1/mgf1.h25
22 files changed, 143 insertions, 227 deletions
diff --git a/src/lib/entropy/proc_walk/proc_walk.cpp b/src/lib/entropy/proc_walk/proc_walk.cpp
index 050d9dcf7..5a72f46e5 100644
--- a/src/lib/entropy/proc_walk/proc_walk.cpp
+++ b/src/lib/entropy/proc_walk/proc_walk.cpp
@@ -24,20 +24,6 @@
namespace Botan {
-/**
-* Returns file descriptors. Until it doesn't
-*/
-class File_Descriptor_Source
- {
- public:
- /**
- * @return next file descriptor, or -1 if done
- */
- virtual int next_fd() = 0;
-
- virtual ~File_Descriptor_Source() {}
- };
-
namespace {
class Directory_Walker : public File_Descriptor_Source
@@ -130,20 +116,13 @@ int Directory_Walker::next_fd()
}
-/**
-* ProcWalking_EntropySource Destructor
-*/
-ProcWalking_EntropySource::~ProcWalking_EntropySource()
- {
- // for ~unique_ptr
- }
-
void ProcWalking_EntropySource::poll(Entropy_Accumulator& accum)
{
const size_t MAX_FILES_READ_PER_POLL = 2048;
+ const double ENTROPY_ESTIMATE = 1.0 / (8*1024);
if(!m_dir)
- m_dir = new Directory_Walker(m_path);
+ m_dir.reset(new Directory_Walker(m_path));
secure_vector<byte>& io_buffer = accum.get_io_buffer(4096);
@@ -154,8 +133,7 @@ void ProcWalking_EntropySource::poll(Entropy_Accumulator& accum)
// If we've exhaused this walk of the directory, halt the poll
if(fd == -1)
{
- delete m_dir;
- m_dir = nullptr;
+ m_dir.reset();
break;
}
@@ -163,7 +141,7 @@ void ProcWalking_EntropySource::poll(Entropy_Accumulator& accum)
::close(fd);
if(got > 0)
- accum.add(&io_buffer[0], got, .001);
+ accum.add(&io_buffer[0], got, ENTROPY_ESTIMATE);
if(accum.polling_goal_achieved())
break;
diff --git a/src/lib/entropy/proc_walk/proc_walk.h b/src/lib/entropy/proc_walk/proc_walk.h
index 04c3b1bba..3d4c4e4da 100644
--- a/src/lib/entropy/proc_walk/proc_walk.h
+++ b/src/lib/entropy/proc_walk/proc_walk.h
@@ -13,6 +13,13 @@
namespace Botan {
+class File_Descriptor_Source
+ {
+ public:
+ virtual int next_fd() = 0;
+ virtual ~File_Descriptor_Source() {}
+ };
+
/**
* File Tree Walking Entropy Source
*/
@@ -26,10 +33,9 @@ class ProcWalking_EntropySource : public EntropySource
ProcWalking_EntropySource(const std::string& root_dir) :
m_path(root_dir), m_dir(nullptr) {}
- ~ProcWalking_EntropySource();
private:
const std::string m_path;
- class File_Descriptor_Source* m_dir;
+ std::unique_ptr<File_Descriptor_Source> m_dir;
};
}
diff --git a/src/lib/kdf/kdf.h b/src/lib/kdf/kdf.h
index 39e7253f9..0e8f77681 100644
--- a/src/lib/kdf/kdf.h
+++ b/src/lib/kdf/kdf.h
@@ -1,5 +1,5 @@
/*
-* KDF/MGF
+* Key Derivation Function interfaces
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
@@ -114,18 +114,6 @@ class BOTAN_DLL KDF
};
/**
-* Mask Generation Function
-*/
-class BOTAN_DLL MGF
- {
- public:
- virtual void mask(const byte in[], size_t in_len,
- byte out[], size_t out_len) const = 0;
-
- virtual ~MGF() {}
- };
-
-/**
* Factory method for KDF (key derivation function)
* @param algo_spec the name of the KDF to create
* @return pointer to newly allocated object of that type
diff --git a/src/lib/kdf/kdf1/kdf1.h b/src/lib/kdf/kdf1/kdf1.h
index 6a14d2995..539aeaa6e 100644
--- a/src/lib/kdf/kdf1/kdf1.h
+++ b/src/lib/kdf/kdf1/kdf1.h
@@ -10,6 +10,7 @@
#include <botan/kdf.h>
#include <botan/hash.h>
+#include <memory>
namespace Botan {
@@ -27,11 +28,8 @@ class BOTAN_DLL KDF1 : public KDF
KDF* clone() const { return new KDF1(hash->clone()); }
KDF1(HashFunction* h) : hash(h) {}
- KDF1(const KDF1& other) : KDF(), hash(other.hash->clone()) {}
-
- ~KDF1() { delete hash; }
private:
- HashFunction* hash;
+ std::unique_ptr<HashFunction> hash;
};
}
diff --git a/src/lib/kdf/kdf2/kdf2.h b/src/lib/kdf/kdf2/kdf2.h
index e33939df9..60bbf5db1 100644
--- a/src/lib/kdf/kdf2/kdf2.h
+++ b/src/lib/kdf/kdf2/kdf2.h
@@ -10,6 +10,7 @@
#include <botan/kdf.h>
#include <botan/hash.h>
+#include <memory>
namespace Botan {
@@ -26,10 +27,8 @@ class BOTAN_DLL KDF2 : public KDF
KDF* clone() const { return new KDF2(hash->clone()); }
KDF2(HashFunction* h) : hash(h) {}
- KDF2(const KDF2& other) : KDF(), hash(other.hash->clone()) {}
- ~KDF2() { delete hash; }
private:
- HashFunction* hash;
+ std::unique_ptr<HashFunction> hash;
};
}
diff --git a/src/lib/kdf/mgf1/mgf1.cpp b/src/lib/kdf/mgf1/mgf1.cpp
deleted file mode 100644
index e0433a02f..000000000
--- a/src/lib/kdf/mgf1/mgf1.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
-* MGF1
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/mgf1.h>
-#include <botan/exceptn.h>
-#include <botan/internal/xor_buf.h>
-#include <algorithm>
-#include <memory>
-
-namespace Botan {
-
-/*
-* MGF1 Mask Generation Function
-*/
-void MGF1::mask(const byte in[], size_t in_len, byte out[],
- size_t out_len) const
- {
- u32bit counter = 0;
-
- while(out_len)
- {
- hash->update(in, in_len);
- hash->update_be(counter);
- secure_vector<byte> buffer = hash->final();
-
- size_t xored = std::min<size_t>(buffer.size(), out_len);
- xor_buf(out, &buffer[0], xored);
- out += xored;
- out_len -= xored;
-
- ++counter;
- }
- }
-
-/*
-* MGF1 Constructor
-*/
-MGF1::MGF1(HashFunction* h) : hash(h)
- {
- if(!hash)
- throw Invalid_Argument("MGF1 given null hash object");
- }
-
-/*
-* MGF1 Destructor
-*/
-MGF1::~MGF1()
- {
- delete hash;
- }
-
-}
diff --git a/src/lib/kdf/mgf1/mgf1.h b/src/lib/kdf/mgf1/mgf1.h
deleted file mode 100644
index 95a2a2bc5..000000000
--- a/src/lib/kdf/mgf1/mgf1.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
-* MGF1
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#ifndef BOTAN_MGF1_H__
-#define BOTAN_MGF1_H__
-
-#include <botan/kdf.h>
-#include <botan/hash.h>
-
-namespace Botan {
-
-/**
-* MGF1 from PKCS #1 v2.0
-*/
-class BOTAN_DLL MGF1 : public MGF
- {
- public:
- void mask(const byte[], size_t, byte[], size_t) const;
-
- /**
- MGF1 constructor: takes ownership of hash
- */
- MGF1(HashFunction* hash);
-
- ~MGF1();
- private:
- HashFunction* hash;
- };
-
-}
-
-#endif
diff --git a/src/lib/kdf/prf_ssl3/prf_ssl3.h b/src/lib/kdf/prf_ssl3/prf_ssl3.h
index bae8badb8..9b9ecb578 100644
--- a/src/lib/kdf/prf_ssl3/prf_ssl3.h
+++ b/src/lib/kdf/prf_ssl3/prf_ssl3.h
@@ -9,6 +9,7 @@
#define BOTAN_SSLV3_PRF_H__
#include <botan/kdf.h>
+#include <memory>
namespace Botan {
diff --git a/src/lib/kdf/prf_tls/prf_tls.cpp b/src/lib/kdf/prf_tls/prf_tls.cpp
index 006b418c9..6437932a8 100644
--- a/src/lib/kdf/prf_tls/prf_tls.cpp
+++ b/src/lib/kdf/prf_tls/prf_tls.cpp
@@ -19,13 +19,13 @@ namespace {
* TLS PRF P_hash function
*/
void P_hash(secure_vector<byte>& output,
- MessageAuthenticationCode* mac,
+ MessageAuthenticationCode& mac,
const byte secret[], size_t secret_len,
const byte seed[], size_t seed_len)
{
try
{
- mac->set_key(secret, secret_len);
+ mac.set_key(secret, secret_len);
}
catch(Invalid_Key_Length)
{
@@ -41,13 +41,13 @@ void P_hash(secure_vector<byte>& output,
while(offset != output.size())
{
const size_t this_block_len =
- std::min<size_t>(mac->output_length(), output.size() - offset);
+ std::min<size_t>(mac.output_length(), output.size() - offset);
- A = mac->process(A);
+ A = mac.process(A);
- mac->update(A);
- mac->update(seed, seed_len);
- secure_vector<byte> block = mac->final();
+ mac.update(A);
+ mac.update(seed, seed_len);
+ secure_vector<byte> block = mac.final();
xor_buf(&output[offset], &block[0], this_block_len);
offset += this_block_len;
@@ -61,14 +61,8 @@ void P_hash(secure_vector<byte>& output,
*/
TLS_PRF::TLS_PRF()
{
- hmac_md5 = new HMAC(new MD5);
- hmac_sha1 = new HMAC(new SHA_160);
- }
-
-TLS_PRF::~TLS_PRF()
- {
- delete hmac_md5;
- delete hmac_sha1;
+ hmac_md5.reset(new HMAC(new MD5));
+ hmac_sha1.reset(new HMAC(new SHA_160));
}
/*
@@ -85,8 +79,8 @@ secure_vector<byte> TLS_PRF::derive(size_t key_len,
const byte* S1 = secret;
const byte* S2 = secret + (secret_len - S2_len);
- P_hash(output, hmac_md5, S1, S1_len, seed, seed_len);
- P_hash(output, hmac_sha1, S2, S2_len, seed, seed_len);
+ P_hash(output, *hmac_md5, S1, S1_len, seed, seed_len);
+ P_hash(output, *hmac_sha1, S2, S2_len, seed, seed_len);
return output;
}
@@ -98,18 +92,13 @@ TLS_12_PRF::TLS_12_PRF(MessageAuthenticationCode* mac) : hmac(mac)
{
}
-TLS_12_PRF::~TLS_12_PRF()
- {
- delete hmac;
- }
-
secure_vector<byte> TLS_12_PRF::derive(size_t key_len,
const byte secret[], size_t secret_len,
const byte seed[], size_t seed_len) const
{
secure_vector<byte> output(key_len);
- P_hash(output, hmac, secret, secret_len, seed, seed_len);
+ P_hash(output, *hmac, secret, secret_len, seed, seed_len);
return output;
}
diff --git a/src/lib/kdf/prf_tls/prf_tls.h b/src/lib/kdf/prf_tls/prf_tls.h
index fce11eae0..654b7abdb 100644
--- a/src/lib/kdf/prf_tls/prf_tls.h
+++ b/src/lib/kdf/prf_tls/prf_tls.h
@@ -10,7 +10,7 @@
#include <botan/kdf.h>
#include <botan/mac.h>
-#include <botan/hash.h>
+#include <memory>
namespace Botan {
@@ -28,10 +28,9 @@ class BOTAN_DLL TLS_PRF : public KDF
KDF* clone() const { return new TLS_PRF; }
TLS_PRF();
- ~TLS_PRF();
private:
- MessageAuthenticationCode* hmac_md5;
- MessageAuthenticationCode* hmac_sha1;
+ std::unique_ptr<MessageAuthenticationCode> hmac_md5;
+ std::unique_ptr<MessageAuthenticationCode> hmac_sha1;
};
/**
@@ -48,9 +47,8 @@ class BOTAN_DLL TLS_12_PRF : public KDF
KDF* clone() const { return new TLS_12_PRF(hmac->clone()); }
TLS_12_PRF(MessageAuthenticationCode* hmac);
- ~TLS_12_PRF();
private:
- MessageAuthenticationCode* hmac;
+ std::unique_ptr<MessageAuthenticationCode> hmac;
};
}
diff --git a/src/lib/mac/ssl3mac/ssl3_mac.h b/src/lib/mac/ssl3mac/ssl3_mac.h
index 8ddb13ce8..36b3e7f51 100644
--- a/src/lib/mac/ssl3mac/ssl3_mac.h
+++ b/src/lib/mac/ssl3mac/ssl3_mac.h
@@ -10,6 +10,7 @@
#include <botan/hash.h>
#include <botan/mac.h>
+#include <memory>
namespace Botan {
@@ -20,14 +21,14 @@ class BOTAN_DLL SSL3_MAC : public MessageAuthenticationCode
{
public:
std::string name() const;
- size_t output_length() const { return hash->output_length(); }
+ size_t output_length() const { return m_hash->output_length(); }
MessageAuthenticationCode* clone() const;
void clear();
Key_Length_Specification key_spec() const
{
- return Key_Length_Specification(hash->output_length());
+ return Key_Length_Specification(m_hash->output_length());
}
/**
diff --git a/src/lib/pbkdf/pbkdf1/pbkdf1.h b/src/lib/pbkdf/pbkdf1/pbkdf1.h
index 783b70ed9..2f14c3f32 100644
--- a/src/lib/pbkdf/pbkdf1/pbkdf1.h
+++ b/src/lib/pbkdf/pbkdf1/pbkdf1.h
@@ -10,6 +10,7 @@
#include <botan/pbkdf.h>
#include <botan/hash.h>
+#include <memory>
namespace Botan {
@@ -27,15 +28,6 @@ class BOTAN_DLL PKCS5_PBKDF1 : public PBKDF
*/
PKCS5_PBKDF1(HashFunction* hash_in) : hash(hash_in) {}
- /**
- * Copy constructor
- * @param other the object to copy
- */
- PKCS5_PBKDF1(const PKCS5_PBKDF1& other) :
- PBKDF(), hash(other.hash->clone()) {}
-
- ~PKCS5_PBKDF1() { delete hash; }
-
std::string name() const
{
return "PBKDF1(" + hash->name() + ")";
@@ -53,7 +45,7 @@ class BOTAN_DLL PKCS5_PBKDF1 : public PBKDF
size_t iterations,
std::chrono::milliseconds msec) const override;
private:
- HashFunction* hash;
+ std::unique_ptr<HashFunction> hash;
};
}
diff --git a/src/lib/pbkdf/pbkdf2/pbkdf2.h b/src/lib/pbkdf/pbkdf2/pbkdf2.h
index 8bc271fcf..a88f2dd31 100644
--- a/src/lib/pbkdf/pbkdf2/pbkdf2.h
+++ b/src/lib/pbkdf/pbkdf2/pbkdf2.h
@@ -10,6 +10,7 @@
#include <botan/pbkdf.h>
#include <botan/mac.h>
+#include <memory>
namespace Botan {
@@ -38,16 +39,11 @@ class BOTAN_DLL PKCS5_PBKDF2 : public PBKDF
/**
* Create a PKCS #5 instance using the specified message auth code
- * @param mac_fn the MAC to use
+ * @param mac_fn the MAC object to use as PRF
*/
PKCS5_PBKDF2(MessageAuthenticationCode* mac_fn) : mac(mac_fn) {}
-
- /**
- * Destructor
- */
- ~PKCS5_PBKDF2() { delete mac; }
private:
- MessageAuthenticationCode* mac;
+ std::unique_ptr<MessageAuthenticationCode> mac;
};
}
diff --git a/src/lib/pk_pad/eme1/eme1.cpp b/src/lib/pk_pad/eme1/eme1.cpp
index dadb44d0a..9f236ec00 100644
--- a/src/lib/pk_pad/eme1/eme1.cpp
+++ b/src/lib/pk_pad/eme1/eme1.cpp
@@ -21,22 +21,24 @@ secure_vector<byte> EME1::pad(const byte in[], size_t in_length,
{
key_length /= 8;
- if(key_length < in_length + 2*Phash.size() + 1)
+ if(key_length < in_length + 2*m_Phash.size() + 1)
throw Invalid_Argument("EME1: Input is too large");
secure_vector<byte> out(key_length);
- rng.randomize(&out[0], Phash.size());
+ rng.randomize(&out[0], m_Phash.size());
- buffer_insert(out, Phash.size(), &Phash[0], Phash.size());
+ buffer_insert(out, m_Phash.size(), &m_Phash[0], m_Phash.size());
out[out.size() - in_length - 1] = 0x01;
buffer_insert(out, out.size() - in_length, in, in_length);
- mgf->mask(&out[0], Phash.size(),
- &out[Phash.size()], out.size() - Phash.size());
+ mgf1_mask(*m_hash,
+ &out[0], m_Phash.size(),
+ &out[m_Phash.size()], out.size() - m_Phash.size());
- mgf->mask(&out[Phash.size()], out.size() - Phash.size(),
- &out[0], Phash.size());
+ mgf1_mask(*m_hash,
+ &out[m_Phash.size()], out.size() - m_Phash.size(),
+ &out[0], m_Phash.size());
return out;
}
@@ -68,14 +70,17 @@ secure_vector<byte> EME1::unpad(const byte in[], size_t in_length,
secure_vector<byte> input(key_length);
buffer_insert(input, key_length - in_length, in, in_length);
- mgf->mask(&input[Phash.size()], input.size() - Phash.size(),
- &input[0], Phash.size());
- mgf->mask(&input[0], Phash.size(),
- &input[Phash.size()], input.size() - Phash.size());
+ mgf1_mask(*m_hash,
+ &input[m_Phash.size()], input.size() - m_Phash.size(),
+ &input[0], m_Phash.size());
+
+ mgf1_mask(*m_hash,
+ &input[0], m_Phash.size(),
+ &input[m_Phash.size()], input.size() - m_Phash.size());
bool waiting_for_delim = true;
bool bad_input = false;
- size_t delim_idx = 2 * Phash.size();
+ size_t delim_idx = 2 * m_Phash.size();
/*
* GCC 4.5 on x86-64 compiles this in a way that is still vunerable
@@ -99,7 +104,7 @@ secure_vector<byte> EME1::unpad(const byte in[], size_t in_length,
// If we never saw any non-zero byte, then it's not valid input
bad_input |= waiting_for_delim;
- bad_input |= !same_mem(&input[Phash.size()], &Phash[0], Phash.size());
+ bad_input |= !same_mem(&input[m_Phash.size()], &m_Phash[0], m_Phash.size());
if(bad_input)
throw Decoding_Error("Invalid EME1 encoding");
@@ -112,8 +117,8 @@ secure_vector<byte> EME1::unpad(const byte in[], size_t in_length,
*/
size_t EME1::maximum_input_size(size_t keybits) const
{
- if(keybits / 8 > 2*Phash.size() + 1)
- return ((keybits / 8) - 2*Phash.size() - 1);
+ if(keybits / 8 > 2*m_Phash.size() + 1)
+ return ((keybits / 8) - 2*m_Phash.size() - 1);
else
return 0;
}
@@ -121,10 +126,9 @@ size_t EME1::maximum_input_size(size_t keybits) const
/*
* EME1 Constructor
*/
-EME1::EME1(HashFunction* hash, const std::string& P)
+EME1::EME1(HashFunction* hash, const std::string& P) : m_hash(hash)
{
- Phash = hash->process(P);
- mgf = new MGF1(hash);
+ m_Phash = m_hash->process(P);
}
}
diff --git a/src/lib/pk_pad/eme1/eme1.h b/src/lib/pk_pad/eme1/eme1.h
index eb6fc6bf5..3c71919a8 100644
--- a/src/lib/pk_pad/eme1/eme1.h
+++ b/src/lib/pk_pad/eme1/eme1.h
@@ -11,6 +11,7 @@
#include <botan/eme.h>
#include <botan/kdf.h>
#include <botan/hash.h>
+#include <memory>
namespace Botan {
@@ -27,15 +28,13 @@ class BOTAN_DLL EME1 : public EME
* @param P an optional label. Normally empty.
*/
EME1(HashFunction* hash, const std::string& P = "");
-
- ~EME1() { delete mgf; }
private:
secure_vector<byte> pad(const byte[], size_t, size_t,
RandomNumberGenerator&) const;
secure_vector<byte> unpad(const byte[], size_t, size_t) const;
- secure_vector<byte> Phash;
- MGF* mgf;
+ secure_vector<byte> m_Phash;
+ std::unique_ptr<HashFunction> m_hash;
};
}
diff --git a/src/lib/pk_pad/eme1/info.txt b/src/lib/pk_pad/eme1/info.txt
index 7e911f495..7ae3e98da 100644
--- a/src/lib/pk_pad/eme1/info.txt
+++ b/src/lib/pk_pad/eme1/info.txt
@@ -4,6 +4,5 @@ load_on auto
<requires>
hash
-kdf
mgf1
</requires>
diff --git a/src/lib/pk_pad/emsa4/emsa4.cpp b/src/lib/pk_pad/emsa4/emsa4.cpp
index c8b8cbc6a..d05c9bef2 100644
--- a/src/lib/pk_pad/emsa4/emsa4.cpp
+++ b/src/lib/pk_pad/emsa4/emsa4.cpp
@@ -8,6 +8,7 @@
#include <botan/emsa4.h>
#include <botan/mgf1.h>
#include <botan/internal/bit_ops.h>
+#include <botan/internal/xor_buf.h>
namespace Botan {
@@ -55,7 +56,7 @@ secure_vector<byte> EMSA4::encoding_of(const secure_vector<byte>& msg,
EM[output_length - HASH_SIZE - SALT_SIZE - 2] = 0x01;
buffer_insert(EM, output_length - 1 - HASH_SIZE - SALT_SIZE, salt);
- mgf->mask(&H[0], HASH_SIZE, &EM[0], output_length - HASH_SIZE - 1);
+ mgf1_mask(*hash, &H[0], HASH_SIZE, &EM[0], output_length - HASH_SIZE - 1);
EM[0] &= 0xFF >> (8 * ((output_bits + 7) / 8) - output_bits);
buffer_insert(EM, output_length - 1 - HASH_SIZE, H);
EM[output_length-1] = 0xBC;
@@ -102,7 +103,7 @@ bool EMSA4::verify(const secure_vector<byte>& const_coded,
const byte* H = &coded[DB_size];
const size_t H_size = HASH_SIZE;
- mgf->mask(&H[0], H_size, &DB[0], DB_size);
+ mgf1_mask(*hash, &H[0], H_size, &DB[0], DB_size);
DB[0] &= 0xFF >> TOP_BITS;
size_t salt_offset = 0;
@@ -131,7 +132,6 @@ bool EMSA4::verify(const secure_vector<byte>& const_coded,
EMSA4::EMSA4(HashFunction* h) :
SALT_SIZE(h->output_length()), hash(h)
{
- mgf = new MGF1(hash->clone());
}
/*
@@ -140,7 +140,6 @@ EMSA4::EMSA4(HashFunction* h) :
EMSA4::EMSA4(HashFunction* h, size_t salt_size) :
SALT_SIZE(salt_size), hash(h)
{
- mgf = new MGF1(hash->clone());
}
}
diff --git a/src/lib/pk_pad/emsa4/emsa4.h b/src/lib/pk_pad/emsa4/emsa4.h
index 44bf5a429..5202ccbb5 100644
--- a/src/lib/pk_pad/emsa4/emsa4.h
+++ b/src/lib/pk_pad/emsa4/emsa4.h
@@ -10,7 +10,7 @@
#include <botan/emsa.h>
#include <botan/hash.h>
-#include <botan/kdf.h>
+#include <memory>
namespace Botan {
@@ -30,20 +30,21 @@ class BOTAN_DLL EMSA4 : public EMSA
* @param salt_size the size of the salt to use in bytes
*/
EMSA4(HashFunction* hash, size_t salt_size);
-
- ~EMSA4() { delete hash; delete mgf; }
private:
- void update(const byte[], size_t);
+ void update(const byte input[], size_t length);
+
secure_vector<byte> raw_data();
- secure_vector<byte> encoding_of(const secure_vector<byte>&, size_t,
- RandomNumberGenerator& rng);
- bool verify(const secure_vector<byte>&, const secure_vector<byte>&,
- size_t);
+ secure_vector<byte> encoding_of(const secure_vector<byte>& msg,
+ size_t output_bits,
+ RandomNumberGenerator& rng);
+
+ bool verify(const secure_vector<byte>& coded,
+ const secure_vector<byte>& raw,
+ size_t key_bits);
size_t SALT_SIZE;
- HashFunction* hash;
- const MGF* mgf;
+ std::unique_ptr<HashFunction> hash;
};
}
diff --git a/src/lib/pk_pad/emsa4/info.txt b/src/lib/pk_pad/emsa4/info.txt
index b7ea466ce..28214d547 100644
--- a/src/lib/pk_pad/emsa4/info.txt
+++ b/src/lib/pk_pad/emsa4/info.txt
@@ -2,6 +2,5 @@ define EMSA4 20131128
<requires>
hash
-kdf
mgf1
</requires>
diff --git a/src/lib/kdf/mgf1/info.txt b/src/lib/pk_pad/mgf1/info.txt
index c6254b8a0..65d471c8a 100644
--- a/src/lib/kdf/mgf1/info.txt
+++ b/src/lib/pk_pad/mgf1/info.txt
@@ -1,4 +1,4 @@
-define MGF1 20131128
+define MGF1 20140118
<requires>
hash
diff --git a/src/lib/pk_pad/mgf1/mgf1.cpp b/src/lib/pk_pad/mgf1/mgf1.cpp
new file mode 100644
index 000000000..eae2fed59
--- /dev/null
+++ b/src/lib/pk_pad/mgf1/mgf1.cpp
@@ -0,0 +1,36 @@
+/*
+* MGF1
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/mgf1.h>
+#include <botan/exceptn.h>
+#include <botan/internal/xor_buf.h>
+#include <algorithm>
+
+namespace Botan {
+
+void mgf1_mask(HashFunction& hash,
+ const byte in[], size_t in_len,
+ byte out[], size_t out_len)
+ {
+ u32bit counter = 0;
+
+ while(out_len)
+ {
+ hash.update(in, in_len);
+ hash.update_be(counter);
+ secure_vector<byte> buffer = hash.final();
+
+ size_t xored = std::min<size_t>(buffer.size(), out_len);
+ xor_buf(out, &buffer[0], xored);
+ out += xored;
+ out_len -= xored;
+
+ ++counter;
+ }
+ }
+
+}
diff --git a/src/lib/pk_pad/mgf1/mgf1.h b/src/lib/pk_pad/mgf1/mgf1.h
new file mode 100644
index 000000000..bceaf0857
--- /dev/null
+++ b/src/lib/pk_pad/mgf1/mgf1.h
@@ -0,0 +1,25 @@
+/*
+* MGF1
+* (C) 1999-2007,2014 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_MGF1_H__
+#define BOTAN_MGF1_H__
+
+#include <botan/kdf.h>
+#include <botan/hash.h>
+
+namespace Botan {
+
+/**
+* MGF1 from PKCS #1 v2.0
+*/
+void mgf1_mask(HashFunction& hash,
+ const byte in[], size_t in_len,
+ byte out[], size_t out_len);
+
+}
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 23:37:18 +0000