1 files changed, 0 insertions, 93 deletions
diff --git a/src/engine/openssl/ossl_elg.cpp b/src/engine/openssl/ossl_elg.cpp
deleted file mode 100644
index 25d628ba8..000000000
--- a/src/engine/openssl/ossl_elg.cpp
+++ /dev/null
@@ -1,93 +0,0 @@
-/*************************************************
-* OpenSSL Engine Source File                     *
-* (C) 1999-2007 Jack Lloyd                       *
-*************************************************/
-
-#include <botan/eng_ossl.h>
-#include <botan/bn_wrap.h>
-#include <openssl/opensslv.h>
-
-#if OPENSSL_VERSION_NUMBER < 0x0090700F
-  #error Your OpenSSL install is too old, upgrade to 0.9.7 or later
-#endif
-
-namespace Botan {
-
-#if defined(BOTAN_HAS_ELGAMAL)
-
-namespace {
-
-/*************************************************
-* OpenSSL ElGamal Operation                      *
-*************************************************/
-class OpenSSL_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 OpenSSL_ELG_Op(*this); }
-      OpenSSL_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:
-      OSSL_BN x, y, g, p;
-      OSSL_BN_CTX ctx;
-   };
-
-/*************************************************
-* OpenSSL ElGamal Encrypt Operation              *
-*************************************************/
-SecureVector<byte> OpenSSL_ELG_Op::encrypt(const byte in[], u32bit length,
-                                           const BigInt& k_bn) const
-   {
-   OSSL_BN i(in, length);
-
-   if(BN_cmp(i.value, p.value) >= 0)
-      throw Invalid_Argument("OpenSSL_ELG_Op: Input is too large");
-
-   OSSL_BN a, b, k(k_bn);
-
-   BN_mod_exp(a.value, g.value, k.value, p.value, ctx.value);
-   BN_mod_exp(b.value, y.value, k.value, p.value, ctx.value);
-   BN_mod_mul(b.value, b.value, i.value, p.value, ctx.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;
-   }
-
-/*************************************************
-* OpenSSL ElGamal Decrypt Operation              *
-*************************************************/
-BigInt OpenSSL_ELG_Op::decrypt(const BigInt& a_bn, const BigInt& b_bn) const
-   {
-   if(BN_is_zero(x.value))
-      throw Internal_Error("OpenSSL_ELG_Op::decrypt: No private key");
-
-   OSSL_BN a(a_bn), b(b_bn), t;
-
-   if(BN_cmp(a.value, p.value) >= 0 || BN_cmp(b.value, p.value) >= 0)
-      throw Invalid_Argument("OpenSSL_ELG_Op: Invalid message");
-
-   BN_mod_exp(t.value, a.value, x.value, p.value, ctx.value);
-   BN_mod_inverse(a.value, t.value, p.value, ctx.value);
-   BN_mod_mul(a.value, a.value, b.value, p.value, ctx.value);
-   return a.to_bigint();
-   }
-
-}
-
-/*************************************************
-* Acquire an ElGamal op                          *
-*************************************************/
-ELG_Operation* OpenSSL_Engine::elg_op(const DL_Group& group, const BigInt& y,
-                                      const BigInt& x) const
-   {
-   return new OpenSSL_ELG_Op(group, y, x);
-   }
-#endif
-
-}