Move most code that relies heavily on Filters into src/filters.

Remove support for (unused) modset settings.

Move tss, fpe, cryptobox, and aont to new dir constructs

1 files changed, 0 insertions, 263 deletions

diff --git a/src/tss/tss.cpp b/src/tss/tss.cpp
deleted file mode 100644
index 0782a27d1..000000000
--- a/src/tss/tss.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
-* RTSS (threshold secret sharing)
-* (C) 2009 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/tss.h>
-#include <botan/loadstor.h>
-#include <botan/pipe.h>
-#include <botan/hex.h>
-#include <botan/sha2_32.h>
-#include <botan/sha160.h>
-#include <memory>
-
-namespace Botan {
-
-namespace {
-
-/**
-Table for GF(2^8) arithmetic (exponentials)
-*/
-const byte EXP[256] = {
-0x01, 0x03, 0x05, 0x0F, 0x11, 0x33, 0x55, 0xFF, 0x1A, 0x2E, 0x72,
-0x96, 0xA1, 0xF8, 0x13, 0x35, 0x5F, 0xE1, 0x38, 0x48, 0xD8, 0x73,
-0x95, 0xA4, 0xF7, 0x02, 0x06, 0x0A, 0x1E, 0x22, 0x66, 0xAA, 0xE5,
-0x34, 0x5C, 0xE4, 0x37, 0x59, 0xEB, 0x26, 0x6A, 0xBE, 0xD9, 0x70,
-0x90, 0xAB, 0xE6, 0x31, 0x53, 0xF5, 0x04, 0x0C, 0x14, 0x3C, 0x44,
-0xCC, 0x4F, 0xD1, 0x68, 0xB8, 0xD3, 0x6E, 0xB2, 0xCD, 0x4C, 0xD4,
-0x67, 0xA9, 0xE0, 0x3B, 0x4D, 0xD7, 0x62, 0xA6, 0xF1, 0x08, 0x18,
-0x28, 0x78, 0x88, 0x83, 0x9E, 0xB9, 0xD0, 0x6B, 0xBD, 0xDC, 0x7F,
-0x81, 0x98, 0xB3, 0xCE, 0x49, 0xDB, 0x76, 0x9A, 0xB5, 0xC4, 0x57,
-0xF9, 0x10, 0x30, 0x50, 0xF0, 0x0B, 0x1D, 0x27, 0x69, 0xBB, 0xD6,
-0x61, 0xA3, 0xFE, 0x19, 0x2B, 0x7D, 0x87, 0x92, 0xAD, 0xEC, 0x2F,
-0x71, 0x93, 0xAE, 0xE9, 0x20, 0x60, 0xA0, 0xFB, 0x16, 0x3A, 0x4E,
-0xD2, 0x6D, 0xB7, 0xC2, 0x5D, 0xE7, 0x32, 0x56, 0xFA, 0x15, 0x3F,
-0x41, 0xC3, 0x5E, 0xE2, 0x3D, 0x47, 0xC9, 0x40, 0xC0, 0x5B, 0xED,
-0x2C, 0x74, 0x9C, 0xBF, 0xDA, 0x75, 0x9F, 0xBA, 0xD5, 0x64, 0xAC,
-0xEF, 0x2A, 0x7E, 0x82, 0x9D, 0xBC, 0xDF, 0x7A, 0x8E, 0x89, 0x80,
-0x9B, 0xB6, 0xC1, 0x58, 0xE8, 0x23, 0x65, 0xAF, 0xEA, 0x25, 0x6F,
-0xB1, 0xC8, 0x43, 0xC5, 0x54, 0xFC, 0x1F, 0x21, 0x63, 0xA5, 0xF4,
-0x07, 0x09, 0x1B, 0x2D, 0x77, 0x99, 0xB0, 0xCB, 0x46, 0xCA, 0x45,
-0xCF, 0x4A, 0xDE, 0x79, 0x8B, 0x86, 0x91, 0xA8, 0xE3, 0x3E, 0x42,
-0xC6, 0x51, 0xF3, 0x0E, 0x12, 0x36, 0x5A, 0xEE, 0x29, 0x7B, 0x8D,
-0x8C, 0x8F, 0x8A, 0x85, 0x94, 0xA7, 0xF2, 0x0D, 0x17, 0x39, 0x4B,
-0xDD, 0x7C, 0x84, 0x97, 0xA2, 0xFD, 0x1C, 0x24, 0x6C, 0xB4, 0xC7,
-0x52, 0xF6, 0x01 };
-
-/**
-Table for GF(2^8) arithmetic (logarithms)
-*/
-const byte LOG[] = {
-0x90, 0x00, 0x19, 0x01, 0x32, 0x02, 0x1A, 0xC6, 0x4B, 0xC7, 0x1B,
-0x68, 0x33, 0xEE, 0xDF, 0x03, 0x64, 0x04, 0xE0, 0x0E, 0x34, 0x8D,
-0x81, 0xEF, 0x4C, 0x71, 0x08, 0xC8, 0xF8, 0x69, 0x1C, 0xC1, 0x7D,
-0xC2, 0x1D, 0xB5, 0xF9, 0xB9, 0x27, 0x6A, 0x4D, 0xE4, 0xA6, 0x72,
-0x9A, 0xC9, 0x09, 0x78, 0x65, 0x2F, 0x8A, 0x05, 0x21, 0x0F, 0xE1,
-0x24, 0x12, 0xF0, 0x82, 0x45, 0x35, 0x93, 0xDA, 0x8E, 0x96, 0x8F,
-0xDB, 0xBD, 0x36, 0xD0, 0xCE, 0x94, 0x13, 0x5C, 0xD2, 0xF1, 0x40,
-0x46, 0x83, 0x38, 0x66, 0xDD, 0xFD, 0x30, 0xBF, 0x06, 0x8B, 0x62,
-0xB3, 0x25, 0xE2, 0x98, 0x22, 0x88, 0x91, 0x10, 0x7E, 0x6E, 0x48,
-0xC3, 0xA3, 0xB6, 0x1E, 0x42, 0x3A, 0x6B, 0x28, 0x54, 0xFA, 0x85,
-0x3D, 0xBA, 0x2B, 0x79, 0x0A, 0x15, 0x9B, 0x9F, 0x5E, 0xCA, 0x4E,
-0xD4, 0xAC, 0xE5, 0xF3, 0x73, 0xA7, 0x57, 0xAF, 0x58, 0xA8, 0x50,
-0xF4, 0xEA, 0xD6, 0x74, 0x4F, 0xAE, 0xE9, 0xD5, 0xE7, 0xE6, 0xAD,
-0xE8, 0x2C, 0xD7, 0x75, 0x7A, 0xEB, 0x16, 0x0B, 0xF5, 0x59, 0xCB,
-0x5F, 0xB0, 0x9C, 0xA9, 0x51, 0xA0, 0x7F, 0x0C, 0xF6, 0x6F, 0x17,
-0xC4, 0x49, 0xEC, 0xD8, 0x43, 0x1F, 0x2D, 0xA4, 0x76, 0x7B, 0xB7,
-0xCC, 0xBB, 0x3E, 0x5A, 0xFB, 0x60, 0xB1, 0x86, 0x3B, 0x52, 0xA1,
-0x6C, 0xAA, 0x55, 0x29, 0x9D, 0x97, 0xB2, 0x87, 0x90, 0x61, 0xBE,
-0xDC, 0xFC, 0xBC, 0x95, 0xCF, 0xCD, 0x37, 0x3F, 0x5B, 0xD1, 0x53,
-0x39, 0x84, 0x3C, 0x41, 0xA2, 0x6D, 0x47, 0x14, 0x2A, 0x9E, 0x5D,
-0x56, 0xF2, 0xD3, 0xAB, 0x44, 0x11, 0x92, 0xD9, 0x23, 0x20, 0x2E,
-0x89, 0xB4, 0x7C, 0xB8, 0x26, 0x77, 0x99, 0xE3, 0xA5, 0x67, 0x4A,
-0xED, 0xDE, 0xC5, 0x31, 0xFE, 0x18, 0x0D, 0x63, 0x8C, 0x80, 0xC0,
-0xF7, 0x70, 0x07 };
-
-byte gfp_mul(byte x, byte y)
-   {
-   if(x == 0 || y == 0)
-      return 0;
-   return EXP[(LOG[x] + LOG[y]) % 255];
-   }
-
-byte rtss_hash_id(const std::string& hash_name)
-   {
-   if(hash_name == "SHA-160")
-      return 1;
-   else if(hash_name == "SHA-256")
-      return 2;
-   else
-      throw Invalid_Argument("RTSS only supports SHA-1 and SHA-256");
-   }
-
-HashFunction* get_rtss_hash_by_id(byte id)
-   {
-   if(id == 1)
-      return new SHA_160;
-   else if(id == 2)
-      return new SHA_256;
-   else
-      throw Decoding_Error("Bad RTSS hash identifier");
-   }
-
-}
-
-RTSS_Share::RTSS_Share(const std::string& hex_input)
-   {
-   Pipe pipe(new Hex_Decoder);
-   pipe.process_msg(hex_input);
-   contents = pipe.read_all();
-   }
-
-byte RTSS_Share::share_id() const
-   {
-   if(!initialized())
-      throw Invalid_State("RTSS_Share::share_id not initialized");
-
-   return contents[20];
-   }
-
-std::string RTSS_Share::to_string() const
-   {
-   Pipe pipe(new Hex_Encoder);
-   pipe.process_msg(contents);
-   return pipe.read_all_as_string();
-   }
-
-std::vector<RTSS_Share>
-RTSS_Share::split(byte M, byte N,
-                  const byte S[], u16bit S_len,
-                  const byte identifier[16],
-                  RandomNumberGenerator& rng)
-   {
-   if(M == 0 || N == 0 || M > N)
-      throw Encoding_Error("RTSS_Share::split: M == 0 or N == 0 or M > N");
-
-   SHA_256 hash; // always use SHA-256 when generating shares
-
-   std::vector<RTSS_Share> shares(N);
-
-   // Create RTSS header in each share
-   for(byte i = 0; i != N; ++i)
-      {
-      shares[i].contents.append(identifier, 16);
-      shares[i].contents.append(rtss_hash_id(hash.name()));
-      shares[i].contents.append(M);
-      shares[i].contents.append(get_byte(0, S_len));
-      shares[i].contents.append(get_byte(1, S_len));
-      }
-
-   // Choose sequential values for X starting from 1
-   for(byte i = 0; i != N; ++i)
-      shares[i].contents.append(i+1);
-
-   // secret = S || H(S)
-   SecureVector<byte> secret(S, S_len);
-   secret.append(hash.process(S, S_len));
-
-   for(size_t i = 0; i != secret.size(); ++i)
-      {
-      std::vector<byte> coefficients(M-1);
-      rng.randomize(&coefficients[0], coefficients.size());
-
-      for(byte j = 0; j != N; ++j)
-         {
-         const byte X = j + 1;
-
-         byte sum = secret[i];
-         byte X_i = X;
-
-         for(size_t k = 0; k != coefficients.size(); ++k)
-            {
-            sum ^= gfp_mul(X_i, coefficients[k]);
-            X_i  = gfp_mul(X_i, X);
-            }
-
-         shares[j].contents.append(sum);
-         }
-      }
-
-   return shares;
-   }
-
-SecureVector<byte>
-RTSS_Share::reconstruct(const std::vector<RTSS_Share>& shares)
-   {
-   const u32bit RTSS_HEADER_SIZE = 20;
-
-   for(size_t i = 0; i != shares.size(); ++i)
-      {
-      if(shares[i].size() != shares[0].size())
-         throw Decoding_Error("Different sized RTSS shares detected");
-      if(shares[i].share_id() == 0)
-         throw Decoding_Error("Invalid (id = 0) RTSS share detected");
-      if(shares[i].size() < RTSS_HEADER_SIZE)
-         throw Decoding_Error("Missing or malformed RTSS header");
-
-      if(!same_mem(shares[0].contents.begin(),
-                   shares[i].contents.begin(), RTSS_HEADER_SIZE))
-         throw Decoding_Error("Different RTSS headers detected");
-      }
-
-   if(shares.size() < shares[0].contents[17])
-      throw Decoding_Error("Insufficient shares to do TSS reconstruction");
-
-   u16bit secret_len = make_u16bit(shares[0].contents[18],
-                                   shares[0].contents[19]);
-
-   byte hash_id = shares[0].contents[16];
-
-   std::auto_ptr<HashFunction> hash(get_rtss_hash_by_id(hash_id));
-
-   if(shares[0].size() != secret_len + hash->OUTPUT_LENGTH + RTSS_HEADER_SIZE + 1)
-      throw Decoding_Error("Bad RTSS length field in header");
-
-   std::vector<byte> V(shares.size());
-   SecureVector<byte> secret;
-
-   for(size_t i = RTSS_HEADER_SIZE + 1; i != shares[0].size(); ++i)
-      {
-      for(size_t j = 0; j != V.size(); ++j)
-         V[j] = shares[j].contents[i];
-
-      byte r = 0;
-      for(size_t k = 0; k != shares.size(); ++k)
-         {
-         // L_i function:
-         byte r2 = 1;
-         for(size_t l = 0; l != shares.size(); ++l)
-            {
-            if(k == l)
-               continue;
-
-            byte share_k = shares[k].share_id();
-            byte share_l = shares[l].share_id();
-
-            if(share_k == share_l)
-               throw Decoding_Error("Duplicate shares found in RTSS recovery");
-
-            byte div = EXP[(255 + LOG[share_l] - LOG[share_k ^ share_l]) % 255];
-
-            r2 = gfp_mul(r2, div);
-            }
-
-         r ^= gfp_mul(V[k], r2);
-         }
-      secret.append(r);
-      }
-
-   if(secret.size() != secret_len + hash->OUTPUT_LENGTH)
-      throw Decoding_Error("Bad length in RTSS output");
-
-   hash->update(secret, secret_len);
-   SecureVector<byte> hash_check = hash->final();
-
-   if(!same_mem(hash_check.begin(), secret + secret_len, hash->OUTPUT_LENGTH))
-      throw Decoding_Error("RTSS hash check failed");
-
-   return SecureVector<byte>(secret, secret_len);
-   }
-
-}