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Add Curve25519 method in help.txt + add new specs file (#1096)

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BONNAURE Olivier 2024-01-21 15:58:48 +01:00 committed by GitHub
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32
test/tool/net/curve25519_test.lua Normal file
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@ -0,0 +1,32 @@
-- Copyright 2022 Justine Alexandra Roberts Tunney
--
-- Permission to use, copy, modify, and/or distribute this software for
-- any purpose with or without fee is hereby granted, provided that the
-- above copyright notice and this permission notice appear in all copies.
--
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
-- WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-- WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
-- AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
-- DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
-- PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
-- TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
-- PERFORMANCE OF THIS SOFTWARE.
local secret1 = GetRandomBytes(32)
local public1 = Curve25519(secret1, "\9")
local secret2 = GetRandomBytes(32)
local public2 = Curve25519(secret2, "\9")
local secret3 = GetRandomBytes(32)
local public3 = Curve25519(secret3, "\9")
local shared_key1 = Curve25519(secret1, public2)
local shared_key2 = Curve25519(secret2, public1)
local shared_key3 = Curve25519(secret2, public3)
local shared_key4 = Curve25519(secret3, public2)
assert(shared_key1 == shared_key2)
assert(shared_key1 ~= shared_key3)
assert(shared_key2 ~= shared_key3)
assert(shared_key4 == shared_key3)

16
tool/net/help.txt
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@ -1137,6 +1137,22 @@ FUNCTIONS
The name can be one of the following strings: MD5, SHA1, SHA224,
SHA256, SHA384, SHA512, and BLAKE2B256.
Curve25519(secret:str, public_or_basepoint:str) -> str
Returns the shared key for the specified secret and public values.
The second argument can be either a public key or a basepoint, used
for generating a shared or public key.
Here a small usage sample :
>: secret1 = GetRandomBytes(32)
>: public1 = Curve25519(secret1, "\9")
>: secret2 = GetRandomBytes(32)
>: public2 = Curve25519(secret2, "\9")
>: shared_key1 = Curve25519(secret1, public2)
>: shared_key2 = Curve25519(secret2, public1)
>: shared_key1 == shared_key2
true
GetRemoteAddr() → ip:uint32,port:uint16
Returns client ip4 address and port, e.g. 0x01020304,31337 would
represent 1.2.3.4:31337. This is the same as GetClientAddr except