1 files changed, 0 insertions, 124 deletions
diff --git a/src/libstate/engine/openssl/ossl_dsa.cpp b/src/libstate/engine/openssl/ossl_dsa.cpp
deleted file mode 100644
index 2757234e2..000000000
--- a/src/libstate/engine/openssl/ossl_dsa.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-/*************************************************
-* OpenSSL DSA 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_DSA)
-
-namespace {
-
-/*************************************************
-* OpenSSL DSA Operation                          *
-*************************************************/
-class OpenSSL_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 OpenSSL_DSA_Op(*this); }
-
-      OpenSSL_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 OSSL_BN x, y, p, q, g;
-      OSSL_BN_CTX ctx;
-   };
-
-/*************************************************
-* OpenSSL DSA Verify Operation                   *
-*************************************************/
-bool OpenSSL_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;
-
-   OSSL_BN r(sig, q_bytes);
-   OSSL_BN s(sig + q_bytes, q_bytes);
-   OSSL_BN i(msg, msg_len);
-
-   if(BN_is_zero(r.value) || BN_cmp(r.value, q.value) >= 0)
-      return false;
-   if(BN_is_zero(s.value) || BN_cmp(s.value, q.value) >= 0)
-      return false;
-
-   if(BN_mod_inverse(s.value, s.value, q.value, ctx.value) == 0)
-      return false;
-
-   OSSL_BN si;
-   BN_mod_mul(si.value, s.value, i.value, q.value, ctx.value);
-   BN_mod_exp(si.value, g.value, si.value, p.value, ctx.value);
-
-   OSSL_BN sr;
-   BN_mod_mul(sr.value, s.value, r.value, q.value, ctx.value);
-   BN_mod_exp(sr.value, y.value, sr.value, p.value, ctx.value);
-
-   BN_mod_mul(si.value, si.value, sr.value, p.value, ctx.value);
-   BN_nnmod(si.value, si.value, q.value, ctx.value);
-
-   if(BN_cmp(si.value, r.value) == 0)
-      return true;
-   return false;
-   }
-
-/*************************************************
-* OpenSSL DSA Sign Operation                     *
-*************************************************/
-SecureVector<byte> OpenSSL_DSA_Op::sign(const byte in[], u32bit length,
-                                        const BigInt& k_bn) const
-   {
-   if(BN_is_zero(x.value))
-      throw Internal_Error("OpenSSL_DSA_Op::sign: No private key");
-
-   OSSL_BN i(in, length);
-   OSSL_BN k(k_bn);
-
-   OSSL_BN r;
-   BN_mod_exp(r.value, g.value, k.value, p.value, ctx.value);
-   BN_nnmod(r.value, r.value, q.value, ctx.value);
-
-   BN_mod_inverse(k.value, k.value, q.value, ctx.value);
-
-   OSSL_BN s;
-   BN_mul(s.value, x.value, r.value, ctx.value);
-   BN_add(s.value, s.value, i.value);
-   BN_mod_mul(s.value, s.value, k.value, q.value, ctx.value);
-
-   if(BN_is_zero(r.value) || BN_is_zero(s.value))
-      throw Internal_Error("OpenSSL_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* OpenSSL_Engine::dsa_op(const DL_Group& group, const BigInt& y,
-                                      const BigInt& x) const
-   {
-   return new OpenSSL_DSA_Op(group, y, x);
-   }
-#endif
-
-}