Move most of the remaining libstate code to pk_engine.cpp, move engines

back to the toplevel since most othe dependencies have been removed now
(except get_cipher which still needs changes)

11 files changed, 0 insertions, 779 deletions

diff --git a/src/libstate/engine/gnump/eng_gmp.h b/src/libstate/engine/gnump/eng_gmp.h
deleted file mode 100644
index 8edaae374..000000000
--- a/src/libstate/engine/gnump/eng_gmp.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*************************************************
-* GMP Engine Header File                         *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#ifndef BOTAN_ENGINE_GMP_H__
-#define BOTAN_ENGINE_GMP_H__
-
-#include <botan/engine.h>
-
-namespace Botan {
-
-/*************************************************
-* GMP Engine                                     *
-*************************************************/
-class BOTAN_DLL GMP_Engine : public Engine
-   {
-   public:
-      std::string provider_name() const { return "gmp"; }
-
-#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
-      IF_Operation* if_op(const BigInt&, const BigInt&, const BigInt&,
-                          const BigInt&, const BigInt&, const BigInt&,
-                          const BigInt&, const BigInt&) const;
-#endif
-
-#if defined(BOTAN_HAS_DSA)
-      DSA_Operation* dsa_op(const DL_Group&, const BigInt&,
-                            const BigInt&) const;
-#endif
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-      NR_Operation* nr_op(const DL_Group&, const BigInt&, const BigInt&) const;
-#endif
-
-#if defined(BOTAN_HAS_ELGAMAL)
-      ELG_Operation* elg_op(const DL_Group&, const BigInt&,
-                            const BigInt&) const;
-#endif
-
-#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
-      DH_Operation* dh_op(const DL_Group&, const BigInt&) const;
-#endif
-
-      Modular_Exponentiator* mod_exp(const BigInt&,
-                                     Power_Mod::Usage_Hints) const;
-
-      GMP_Engine();
-   private:
-      static void set_memory_hooks();
-   };
-
-}
-
-#endif
diff --git a/src/libstate/engine/gnump/gmp_dh.cpp b/src/libstate/engine/gnump/gmp_dh.cpp
deleted file mode 100644
index ef2732626..000000000
--- a/src/libstate/engine/gnump/gmp_dh.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-/*************************************************
-* GMP Engine Source File                         *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-#include <gmp.h>
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_DIFFIE_HELLMAN)
-namespace {
-
-/*************************************************
-* GMP DH Operation                               *
-*************************************************/
-class GMP_DH_Op : public DH_Operation
-   {
-   public:
-      BigInt agree(const BigInt& i) const;
-      DH_Operation* clone() const { return new GMP_DH_Op(*this); }
-
-      GMP_DH_Op(const DL_Group& group, const BigInt& x_bn) :
-         x(x_bn), p(group.get_p()) {}
-   private:
-      GMP_MPZ x, p;
-   };
-
-/*************************************************
-* GMP DH Key Agreement Operation                 *
-*************************************************/
-BigInt GMP_DH_Op::agree(const BigInt& i_bn) const
-   {
-   GMP_MPZ i(i_bn);
-   mpz_powm(i.value, i.value, x.value, p.value);
-   return i.to_bigint();
-   }
-
-}
-
-/*************************************************
-* Acquire a DH op                                *
-*************************************************/
-DH_Operation* GMP_Engine::dh_op(const DL_Group& group, const BigInt& x) const
-   {
-   return new GMP_DH_Op(group, x);
-   }
-#endif
-
-}
diff --git a/src/libstate/engine/gnump/gmp_dsa.cpp b/src/libstate/engine/gnump/gmp_dsa.cpp
deleted file mode 100644
index 209c6e0a6..000000000
--- a/src/libstate/engine/gnump/gmp_dsa.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-/*************************************************
-* GMP DSA Engine Source File                     *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-#include <gmp.h>
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_DSA)
-
-namespace {
-
-/*************************************************
-* GMP DSA Operation                              *
-*************************************************/
-class GMP_DSA_Op : public DSA_Operation
-   {
-   public:
-      bool verify(const byte[], u32bit, const byte[], u32bit) const;
-      SecureVector<byte> sign(const byte[], u32bit, const BigInt&) const;
-
-      DSA_Operation* clone() const { return new GMP_DSA_Op(*this); }
-
-      GMP_DSA_Op(const DL_Group& group, const BigInt& y1, const BigInt& x1) :
-         x(x1), y(y1), p(group.get_p()), q(group.get_q()), g(group.get_g()) {}
-   private:
-      const GMP_MPZ x, y, p, q, g;
-   };
-
-/*************************************************
-* GMP DSA Verify Operation                       *
-*************************************************/
-bool GMP_DSA_Op::verify(const byte msg[], u32bit msg_len,
-                        const byte sig[], u32bit sig_len) const
-   {
-   const u32bit q_bytes = q.bytes();
-
-   if(sig_len != 2*q_bytes || msg_len > q_bytes)
-      return false;
-
-   GMP_MPZ r(sig, q_bytes);
-   GMP_MPZ s(sig + q_bytes, q_bytes);
-   GMP_MPZ i(msg, msg_len);
-
-   if(mpz_cmp_ui(r.value, 0) <= 0 || mpz_cmp(r.value, q.value) >= 0)
-      return false;
-   if(mpz_cmp_ui(s.value, 0) <= 0 || mpz_cmp(s.value, q.value) >= 0)
-      return false;
-
-   if(mpz_invert(s.value, s.value, q.value) == 0)
-      return false;
-
-   GMP_MPZ si;
-   mpz_mul(si.value, s.value, i.value);
-   mpz_mod(si.value, si.value, q.value);
-   mpz_powm(si.value, g.value, si.value, p.value);
-
-   GMP_MPZ sr;
-   mpz_mul(sr.value, s.value, r.value);
-   mpz_mod(sr.value, sr.value, q.value);
-   mpz_powm(sr.value, y.value, sr.value, p.value);
-
-   mpz_mul(si.value, si.value, sr.value);
-   mpz_mod(si.value, si.value, p.value);
-   mpz_mod(si.value, si.value, q.value);
-
-   if(mpz_cmp(si.value, r.value) == 0)
-      return true;
-   return false;
-   }
-
-/*************************************************
-* GMP DSA Sign Operation                         *
-*************************************************/
-SecureVector<byte> GMP_DSA_Op::sign(const byte in[], u32bit length,
-                                    const BigInt& k_bn) const
-   {
-   if(mpz_cmp_ui(x.value, 0) == 0)
-      throw Internal_Error("GMP_DSA_Op::sign: No private key");
-
-   GMP_MPZ i(in, length);
-   GMP_MPZ k(k_bn);
-
-   GMP_MPZ r;
-   mpz_powm(r.value, g.value, k.value, p.value);
-   mpz_mod(r.value, r.value, q.value);
-
-   mpz_invert(k.value, k.value, q.value);
-
-   GMP_MPZ s;
-   mpz_mul(s.value, x.value, r.value);
-   mpz_add(s.value, s.value, i.value);
-   mpz_mul(s.value, s.value, k.value);
-   mpz_mod(s.value, s.value, q.value);
-
-   if(mpz_cmp_ui(r.value, 0) == 0 || mpz_cmp_ui(s.value, 0) == 0)
-      throw Internal_Error("GMP_DSA_Op::sign: r or s was zero");
-
-   const u32bit q_bytes = q.bytes();
-
-   SecureVector<byte> output(2*q_bytes);
-   r.encode(output, q_bytes);
-   s.encode(output + q_bytes, q_bytes);
-   return output;
-   }
-
-}
-
-/*************************************************
-* Acquire a DSA op                               *
-*************************************************/
-DSA_Operation* GMP_Engine::dsa_op(const DL_Group& group, const BigInt& y,
-                                  const BigInt& x) const
-   {
-   return new GMP_DSA_Op(group, y, x);
-   }
-#endif
-
-}
diff --git a/src/libstate/engine/gnump/gmp_elg.cpp b/src/libstate/engine/gnump/gmp_elg.cpp
deleted file mode 100644
index 63e9440ff..000000000
--- a/src/libstate/engine/gnump/gmp_elg.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-/*************************************************
-* GMP ElGamal Engine Source File                 *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-#include <gmp.h>
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_ELGAMAL)
-
-namespace {
-
-/*************************************************
-* GMP ElGamal Operation                          *
-*************************************************/
-class GMP_ELG_Op : public ELG_Operation
-   {
-   public:
-      SecureVector<byte> encrypt(const byte[], u32bit, const BigInt&) const;
-      BigInt decrypt(const BigInt&, const BigInt&) const;
-
-      ELG_Operation* clone() const { return new GMP_ELG_Op(*this); }
-
-      GMP_ELG_Op(const DL_Group& group, const BigInt& y1, const BigInt& x1) :
-         x(x1), y(y1), g(group.get_g()), p(group.get_p()) {}
-   private:
-      GMP_MPZ x, y, g, p;
-   };
-
-/*************************************************
-* GMP ElGamal Encrypt Operation                  *
-*************************************************/
-SecureVector<byte> GMP_ELG_Op::encrypt(const byte in[], u32bit length,
-                                       const BigInt& k_bn) const
-   {
-   GMP_MPZ i(in, length);
-
-   if(mpz_cmp(i.value, p.value) >= 0)
-      throw Invalid_Argument("GMP_ELG_Op: Input is too large");
-
-   GMP_MPZ a, b, k(k_bn);
-
-   mpz_powm(a.value, g.value, k.value, p.value);
-   mpz_powm(b.value, y.value, k.value, p.value);
-   mpz_mul(b.value, b.value, i.value);
-   mpz_mod(b.value, b.value, p.value);
-
-   const u32bit p_bytes = p.bytes();
-   SecureVector<byte> output(2*p_bytes);
-   a.encode(output, p_bytes);
-   b.encode(output + p_bytes, p_bytes);
-   return output;
-   }
-
-/*************************************************
-* GMP ElGamal Decrypt Operation                  *
-*************************************************/
-BigInt GMP_ELG_Op::decrypt(const BigInt& a_bn, const BigInt& b_bn) const
-   {
-   if(mpz_cmp_ui(x.value, 0) == 0)
-      throw Internal_Error("GMP_ELG_Op::decrypt: No private key");
-
-   GMP_MPZ a(a_bn), b(b_bn);
-
-   if(mpz_cmp(a.value, p.value) >= 0 || mpz_cmp(b.value, p.value) >= 0)
-      throw Invalid_Argument("GMP_ELG_Op: Invalid message");
-
-   mpz_powm(a.value, a.value, x.value, p.value);
-   mpz_invert(a.value, a.value, p.value);
-   mpz_mul(a.value, a.value, b.value);
-   mpz_mod(a.value, a.value, p.value);
-   return a.to_bigint();
-   }
-
-}
-
-/*************************************************
-* Acquire an ElGamal op                          *
-*************************************************/
-ELG_Operation* GMP_Engine::elg_op(const DL_Group& group, const BigInt& y,
-                                  const BigInt& x) const
-   {
-   return new GMP_ELG_Op(group, y, x);
-   }
-#endif
-
-}
diff --git a/src/libstate/engine/gnump/gmp_if.cpp b/src/libstate/engine/gnump/gmp_if.cpp
deleted file mode 100644
index a4a4d0476..000000000
--- a/src/libstate/engine/gnump/gmp_if.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-/*************************************************
-* GMP IF Engine Source File                      *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-#include <gmp.h>
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
-
-namespace {
-
-/*************************************************
-* GMP IF Operation                               *
-*************************************************/
-class GMP_IF_Op : public IF_Operation
-   {
-   public:
-      BigInt public_op(const BigInt&) const;
-      BigInt private_op(const BigInt&) const;
-
-      IF_Operation* clone() const { return new GMP_IF_Op(*this); }
-
-      GMP_IF_Op(const BigInt& e_bn, const BigInt& n_bn, const BigInt&,
-                const BigInt& p_bn, const BigInt& q_bn, const BigInt& d1_bn,
-                const BigInt& d2_bn, const BigInt& c_bn) :
-         e(e_bn), n(n_bn), p(p_bn), q(q_bn), d1(d1_bn), d2(d2_bn), c(c_bn) {}
-   private:
-      const GMP_MPZ e, n, p, q, d1, d2, c;
-   };
-
-/*************************************************
-* GMP IF Public Operation                        *
-*************************************************/
-BigInt GMP_IF_Op::public_op(const BigInt& i_bn) const
-   {
-   GMP_MPZ i(i_bn);
-   mpz_powm(i.value, i.value, e.value, n.value);
-   return i.to_bigint();
-   }
-
-/*************************************************
-* GMP IF Private Operation                       *
-*************************************************/
-BigInt GMP_IF_Op::private_op(const BigInt& i_bn) const
-   {
-   if(mpz_cmp_ui(p.value, 0) == 0)
-      throw Internal_Error("GMP_IF_Op::private_op: No private key");
-
-   GMP_MPZ j1, j2, h(i_bn);
-
-   mpz_powm(j1.value, h.value, d1.value, p.value);
-   mpz_powm(j2.value, h.value, d2.value, q.value);
-   mpz_sub(h.value, j1.value, j2.value);
-   mpz_mul(h.value, h.value, c.value);
-   mpz_mod(h.value, h.value, p.value);
-   mpz_mul(h.value, h.value, q.value);
-   mpz_add(h.value, h.value, j2.value);
-   return h.to_bigint();
-   }
-
-}
-
-/*************************************************
-* Acquire an IF op                               *
-*************************************************/
-IF_Operation* GMP_Engine::if_op(const BigInt& e, const BigInt& n,
-                                const BigInt& d, const BigInt& p,
-                                const BigInt& q, const BigInt& d1,
-                                const BigInt& d2, const BigInt& c) const
-   {
-   return new GMP_IF_Op(e, n, d, p, q, d1, d2, c);
-   }
-#endif
-
-}
diff --git a/src/libstate/engine/gnump/gmp_mem.cpp b/src/libstate/engine/gnump/gmp_mem.cpp
deleted file mode 100644
index 91ba94dd7..000000000
--- a/src/libstate/engine/gnump/gmp_mem.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-/*************************************************
-* GNU MP Memory Handlers Source File             *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <cstring>
-#include <gmp.h>
-
-namespace Botan {
-
-namespace {
-
-/*************************************************
-* Allocator used by GNU MP                       *
-*************************************************/
-Allocator* gmp_alloc = 0;
-
-/*************************************************
-* Allocation Function for GNU MP                 *
-*************************************************/
-void* gmp_malloc(size_t n)
-   {
-   return gmp_alloc->allocate(n);
-   }
-
-/*************************************************
-* Reallocation Function for GNU MP               *
-*************************************************/
-void* gmp_realloc(void* ptr, size_t old_n, size_t new_n)
-   {
-   void* new_buf = gmp_alloc->allocate(new_n);
-   std::memcpy(new_buf, ptr, std::min(old_n, new_n));
-   gmp_alloc->deallocate(ptr, old_n);
-   return new_buf;
-   }
-
-/*************************************************
-* Deallocation Function for GNU MP               *
-*************************************************/
-void gmp_free(void* ptr, size_t n)
-   {
-   gmp_alloc->deallocate(ptr, n);
-   }
-
-}
-
-/*************************************************
-* Set the GNU MP memory functions                *
-*************************************************/
-void GMP_Engine::set_memory_hooks()
-   {
-   if(gmp_alloc == 0)
-      {
-      gmp_alloc = Allocator::get(true);
-      mp_set_memory_functions(gmp_malloc, gmp_realloc, gmp_free);
-      }
-   }
-
-/*************************************************
-* GMP_Engine Constructor                         *
-*************************************************/
-GMP_Engine::GMP_Engine()
-   {
-   set_memory_hooks();
-   }
-
-}
diff --git a/src/libstate/engine/gnump/gmp_nr.cpp b/src/libstate/engine/gnump/gmp_nr.cpp
deleted file mode 100644
index 97b7e5554..000000000
--- a/src/libstate/engine/gnump/gmp_nr.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-/*************************************************
-* GMP NR Engine Source File                      *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-#include <gmp.h>
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_NYBERG_RUEPPEL)
-
-namespace {
-
-/*************************************************
-* GMP NR Operation                               *
-*************************************************/
-class GMP_NR_Op : public NR_Operation
-   {
-   public:
-      SecureVector<byte> verify(const byte[], u32bit) const;
-      SecureVector<byte> sign(const byte[], u32bit, const BigInt&) const;
-
-      NR_Operation* clone() const { return new GMP_NR_Op(*this); }
-
-      GMP_NR_Op(const DL_Group& group, const BigInt& y1, const BigInt& x1) :
-         x(x1), y(y1), p(group.get_p()), q(group.get_q()), g(group.get_g()) {}
-   private:
-      const GMP_MPZ x, y, p, q, g;
-   };
-
-/*************************************************
-* GMP NR Verify Operation                        *
-*************************************************/
-SecureVector<byte> GMP_NR_Op::verify(const byte sig[], u32bit sig_len) const
-   {
-   const u32bit q_bytes = q.bytes();
-
-   if(sig_len != 2*q_bytes)
-      return false;
-
-   GMP_MPZ c(sig, q_bytes);
-   GMP_MPZ d(sig + q_bytes, q_bytes);
-
-   if(mpz_cmp_ui(c.value, 0) <= 0 || mpz_cmp(c.value, q.value) >= 0 ||
-                                     mpz_cmp(d.value, q.value) >= 0)
-      throw Invalid_Argument("GMP_NR_Op::verify: Invalid signature");
-
-   GMP_MPZ i1, i2;
-   mpz_powm(i1.value, g.value, d.value, p.value);
-   mpz_powm(i2.value, y.value, c.value, p.value);
-   mpz_mul(i1.value, i1.value, i2.value);
-   mpz_mod(i1.value, i1.value, p.value);
-   mpz_sub(i1.value, c.value, i1.value);
-   mpz_mod(i1.value, i1.value, q.value);
-   return BigInt::encode(i1.to_bigint());
-   }
-
-/*************************************************
-* GMP NR Sign Operation                          *
-*************************************************/
-SecureVector<byte> GMP_NR_Op::sign(const byte in[], u32bit length,
-                                    const BigInt& k_bn) const
-   {
-   if(mpz_cmp_ui(x.value, 0) == 0)
-      throw Internal_Error("GMP_NR_Op::sign: No private key");
-
-   GMP_MPZ f(in, length);
-   GMP_MPZ k(k_bn);
-
-   if(mpz_cmp(f.value, q.value) >= 0)
-      throw Invalid_Argument("GMP_NR_Op::sign: Input is out of range");
-
-   GMP_MPZ c, d;
-   mpz_powm(c.value, g.value, k.value, p.value);
-   mpz_add(c.value, c.value, f.value);
-   mpz_mod(c.value, c.value, q.value);
-   mpz_mul(d.value, x.value, c.value);
-   mpz_sub(d.value, k.value, d.value);
-   mpz_mod(d.value, d.value, q.value);
-
-   if(mpz_cmp_ui(c.value, 0) == 0)
-      throw Internal_Error("Default_NR_Op::sign: c was zero");
-
-   const u32bit q_bytes = q.bytes();
-   SecureVector<byte> output(2*q_bytes);
-   c.encode(output, q_bytes);
-   d.encode(output + q_bytes, q_bytes);
-   return output;
-   }
-
-}
-
-/*************************************************
-* Acquire a NR op                                *
-*************************************************/
-NR_Operation* GMP_Engine::nr_op(const DL_Group& group, const BigInt& y,
-                                const BigInt& x) const
-   {
-   return new GMP_NR_Op(group, y, x);
-   }
-#endif
-
-}
diff --git a/src/libstate/engine/gnump/gmp_powm.cpp b/src/libstate/engine/gnump/gmp_powm.cpp
deleted file mode 100644
index a5e3d1c0d..000000000
--- a/src/libstate/engine/gnump/gmp_powm.cpp
+++ /dev/null
@@ -1,51 +0,0 @@
-/*************************************************
-* GMP Modular Exponentiation Source File         *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_gmp.h>
-#include <botan/gmp_wrap.h>
-
-namespace Botan {
-
-namespace {
-
-/*************************************************
-* GMP Modular Exponentiator                      *
-*************************************************/
-class GMP_Modular_Exponentiator : public Modular_Exponentiator
-   {
-   public:
-      void set_base(const BigInt& b) { base = b; }
-      void set_exponent(const BigInt& e) { exp = e; }
-      BigInt execute() const;
-      Modular_Exponentiator* copy() const
-         { return new GMP_Modular_Exponentiator(*this); }
-
-      GMP_Modular_Exponentiator(const BigInt& n) : mod(n) {}
-   private:
-      GMP_MPZ base, exp, mod;
-   };
-
-/*************************************************
-* Compute the result                             *
-*************************************************/
-BigInt GMP_Modular_Exponentiator::execute() const
-   {
-   GMP_MPZ r;
-   mpz_powm(r.value, base.value, exp.value, mod.value);
-   return r.to_bigint();
-   }
-
-}
-
-/*************************************************
-* Return the GMP-based modular exponentiator     *
-*************************************************/
-Modular_Exponentiator* GMP_Engine::mod_exp(const BigInt& n,
-                                           Power_Mod::Usage_Hints) const
-   {
-   return new GMP_Modular_Exponentiator(n);
-   }
-
-}
diff --git a/src/libstate/engine/gnump/gmp_wrap.cpp b/src/libstate/engine/gnump/gmp_wrap.cpp
deleted file mode 100644
index 4c73c2562..000000000
--- a/src/libstate/engine/gnump/gmp_wrap.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-/*************************************************
-* GMP Wrapper Source File                        *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/gmp_wrap.h>
-
-#define GNU_MP_VERSION_CODE_FOR(a,b,c) ((a << 16) | (b << 8) | (c))
-
-#define GNU_MP_VERSION_CODE \
-   GNU_MP_VERSION_CODE_FOR(__GNU_MP_VERSION, __GNU_MP_VERSION_MINOR, \
-                           __GNU_MP_VERSION_PATCHLEVEL)
-
-#if GNU_MP_VERSION_CODE < GNU_MP_VERSION_CODE_FOR(4,1,0)
-  #error Your GNU MP install is too old, upgrade to 4.1 or later
-#endif
-
-namespace Botan {
-
-/*************************************************
-* GMP_MPZ Constructor                            *
-*************************************************/
-GMP_MPZ::GMP_MPZ(const BigInt& in)
-   {
-   mpz_init(value);
-   if(in != 0)
-      mpz_import(value, in.sig_words(), -1, sizeof(word), 0, 0, in.data());
-   }
-
-/*************************************************
-* GMP_MPZ Constructor                            *
-*************************************************/
-GMP_MPZ::GMP_MPZ(const byte in[], u32bit length)
-   {
-   mpz_init(value);
-   mpz_import(value, length, 1, 1, 0, 0, in);
-   }
-
-/*************************************************
-* GMP_MPZ Copy Constructor                       *
-*************************************************/
-GMP_MPZ::GMP_MPZ(const GMP_MPZ& other)
-   {
-   mpz_init_set(value, other.value);
-   }
-
-/*************************************************
-* GMP_MPZ Destructor                             *
-*************************************************/
-GMP_MPZ::~GMP_MPZ()
-   {
-   mpz_clear(value);
-   }
-
-/*************************************************
-* GMP_MPZ Assignment Operator                    *
-*************************************************/
-GMP_MPZ& GMP_MPZ::operator=(const GMP_MPZ& other)
-   {
-   mpz_set(value, other.value);
-   return (*this);
-   }
-
-/*************************************************
-* Export the mpz_t as a bytestring               *
-*************************************************/
-void GMP_MPZ::encode(byte out[], u32bit length) const
-   {
-   size_t dummy = 0;
-   mpz_export(out + (length - bytes()), &dummy, 1, 1, 0, 0, value);
-   }
-
-/*************************************************
-* Return the number of significant bytes         *
-*************************************************/
-u32bit GMP_MPZ::bytes() const
-   {
-   return ((mpz_sizeinbase(value, 2) + 7) / 8);
-   }
-
-/*************************************************
-* GMP to BigInt Conversions                      *
-*************************************************/
-BigInt GMP_MPZ::to_bigint() const
-   {
-   BigInt out(BigInt::Positive, (bytes() + sizeof(word) - 1) / sizeof(word));
-   size_t dummy = 0;
-   mpz_export(out.get_reg(), &dummy, -1, sizeof(word), 0, 0, value);
-
-   if(mpz_sgn(value) < 0)
-      out.flip_sign();
-
-   return out;
-   }
-
-}
diff --git a/src/libstate/engine/gnump/gmp_wrap.h b/src/libstate/engine/gnump/gmp_wrap.h
deleted file mode 100644
index e2a420e6b..000000000
--- a/src/libstate/engine/gnump/gmp_wrap.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*************************************************
-* GMP MPZ Wrapper Header File                    *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#ifndef BOTAN_GMP_MPZ_WRAP_H__
-#define BOTAN_GMP_MPZ_WRAP_H__
-
-#include <botan/bigint.h>
-#include <gmp.h>
-
-namespace Botan {
-
-/*************************************************
-* Lightweight GMP mpz_t Wrapper                  *
-*************************************************/
-class BOTAN_DLL GMP_MPZ
-   {
-   public:
-      mpz_t value;
-
-      BigInt to_bigint() const;
-      void encode(byte[], u32bit) const;
-      u32bit bytes() const;
-
-      GMP_MPZ& operator=(const GMP_MPZ&);
-
-      GMP_MPZ(const GMP_MPZ&);
-      GMP_MPZ(const BigInt& = 0);
-      GMP_MPZ(const byte[], u32bit);
-      ~GMP_MPZ();
-   };
-
-}
-
-#endif
diff --git a/src/libstate/engine/gnump/info.txt b/src/libstate/engine/gnump/info.txt
deleted file mode 100644
index 33fa720f5..000000000
--- a/src/libstate/engine/gnump/info.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-realname "GMP Engine"
-
-define ENGINE_GNU_MP
-
-load_on request
-
-<libs>
-all -> gmp
-</libs>
-
-<requires>
-libstate
-</requires>
-
-<add>
-eng_gmp.h
-gmp_dh.cpp
-gmp_dsa.cpp
-gmp_elg.cpp
-gmp_if.cpp
-gmp_mem.cpp
-gmp_nr.cpp
-gmp_powm.cpp
-gmp_wrap.cpp
-gmp_wrap.h
-</add>