SSH: Use OpenSSH tools

... instead of our own SSH library.

Advantages:
    - Full compatibility with OpenSSH behavior guaranteed.
    - Minimal maintenance effort.
    - Less code to build.
    - Big chunk of 3rd party sources can be removed from our repository.

One the downside, Windows users now need to install OpenSSH for
RemoteLinux support. Hoewever, people doing embedded development
probably have it installed anyway.

[ChangeLog] Switched SSH backend to OpenSSH

Fixes: QTCREATORBUG-15744
Fixes: QTCREATORBUG-15807
Fixes: QTCREATORBUG-19306
Fixes: QTCREATORBUG-20210
Change-Id: Ifcfefdd39401e45ba1f4aca35d2c5bf7046c7aab
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 0 insertions, 66 deletions

diff --git a/src/libs/3rdparty/botan/src/lib/pubkey/blinding.cpp b/src/libs/3rdparty/botan/src/lib/pubkey/blinding.cpp
deleted file mode 100644
index ecd420780c..0000000000
--- a/src/libs/3rdparty/botan/src/lib/pubkey/blinding.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
-* Blinding for public key operations
-* (C) 1999-2010,2015 Jack Lloyd
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/blinding.h>
-
-namespace Botan {
-
-Blinder::Blinder(const BigInt& modulus,
-                 RandomNumberGenerator& rng,
-                 std::function<BigInt (const BigInt&)> fwd,
-                 std::function<BigInt (const BigInt&)> inv) :
-      m_reducer(modulus),
-      m_rng(rng),
-      m_fwd_fn(fwd),
-      m_inv_fn(inv),
-      m_modulus_bits(modulus.bits()),
-      m_e{},
-      m_d{},
-      m_counter{}
-   {
-   const BigInt k = blinding_nonce();
-   m_e = m_fwd_fn(k);
-   m_d = m_inv_fn(k);
-   }
-
-BigInt Blinder::blinding_nonce() const
-   {
-   return BigInt(m_rng, m_modulus_bits - 1);
-   }
-
-BigInt Blinder::blind(const BigInt& i) const
-   {
-   if(!m_reducer.initialized())
-      throw Exception("Blinder not initialized, cannot blind");
-
-   ++m_counter;
-
-   if((BOTAN_BLINDING_REINIT_INTERVAL > 0) && (m_counter > BOTAN_BLINDING_REINIT_INTERVAL))
-      {
-      const BigInt k = blinding_nonce();
-      m_e = m_fwd_fn(k);
-      m_d = m_inv_fn(k);
-      m_counter = 0;
-      }
-   else
-      {
-      m_e = m_reducer.square(m_e);
-      m_d = m_reducer.square(m_d);
-      }
-
-   return m_reducer.multiply(i, m_e);
-   }
-
-BigInt Blinder::unblind(const BigInt& i) const
-   {
-   if(!m_reducer.initialized())
-      throw Exception("Blinder not initialized, cannot unblind");
-
-   return m_reducer.multiply(i, m_d);
-   }
-
-}