Split up docs into the reference manual, the website, and everything else.

Add `website` target to makefile.

Some progress towards fixing minimized builds.

TLS now hard requires ECDSA and GCM since otherwise a minimized build
has only insecure options.

Remove boost_thread dependency in command line tool

1 files changed, 37 insertions, 0 deletions

diff --git a/doc/manual/kdf.rst b/doc/manual/kdf.rst
new file mode 100644
index 000000000..4ab2fd5dc
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+++ b/doc/manual/kdf.rst
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+
+.. _key_derivation_function:
+
+Key Derivation Functions
+========================================
+
+Key derivation functions are used to turn some amount of shared secret
+material into uniform random keys suitable for use with symmetric
+algorithms. An example of an input which is useful for a KDF is a
+shared secret created using Diffie-Hellman key agreement.
+
+.. cpp:class:: KDF
+
+  .. cpp:function:: secure_vector<byte> derive_key( \
+     size_t key_len, const std::vector<byte>& secret, \
+     const std::string& salt = "") const
+
+  .. cpp:function:: secure_vector<byte> derive_key( \
+     size_t key_len, const std::vector<byte>& secret, \
+     const std::vector<byte>& salt) const
+
+  .. cpp:function:: secure_vector<byte> derive_key( \
+     size_t key_len, const std::vector<byte>& secret, \
+     const byte* salt, size_t salt_len) const
+
+  .. cpp:function:: secure_vector<byte> derive_key( \
+     size_t key_len, const byte* secret, size_t secret_len, \
+     const std::string& salt) const
+
+   All variations on the same theme. Deterministically creates a
+   uniform random value from *secret* and *salt*. Typically *salt* is
+   a lable or identifier, such as a session id.
+
+You can create a :cpp:class:`KDF` using
+
+.. cpp:function:: KDF* get_kdf(const std::string& algo_spec)
+