void
file::write_from_string(
const string_ref path,
const byte_buffer_ref content
)
{
io::file_stream f(path, io::file_access::write);
f.write(content.get_buffer(), content.get_size());
}
void
circuit_node::set_shared_secret(
const crypto::big_integer& peer_public,
const byte_buffer_ref kh // derivative key data, for verification of derivation
)
{
// assert(kh.get_size() == 20)
crypto::big_integer shared_secret = _dh.get_shared_secret(peer_public);
auto key_material = derive_keys(shared_secret.to_bytes());
if (memcmp(key_material.get_buffer(), kh.get_buffer(), kh.get_size()) == 0)
{
_crypto_state = new circuit_node_crypto_state(key_material);
}
}
void
curve25519_public_key::import(
const byte_buffer_ref key
)
{
memory::copy(_blob.X, key.get_buffer(), key_size_in_bytes);
}
void
curve25519_private_key::import(
const byte_buffer_ref key
)
{
memory::copy(_blob.d, key.get_buffer(), key_size_in_bytes);
detail::curve25519_donna(_blob.X, _blob.d, basepoint_9);
}