From 0ad5c939272289b511d8ed84ad113a9e75f03ae7 Mon Sep 17 00:00:00 2001
From: Lorenzo Delgado <lorenzo@status.im>
Date: Thu, 2 Mar 2023 11:58:58 +0100
Subject: [PATCH] feat(WAKU2-MESSAGE): add deterministic message hashing test
 vectors (#577)

---
 content/docs/rfcs/14/README.md | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/content/docs/rfcs/14/README.md b/content/docs/rfcs/14/README.md
index 421bb3ae..811cddfd 100644
--- a/content/docs/rfcs/14/README.md
+++ b/content/docs/rfcs/14/README.md
@@ -132,6 +132,38 @@ If an optional attribute, such as `meta`, is absent, the concatenation of attrib
 
 This hashing schema is deemed appropriate for use cases where a cross-implementation deterministic hash is needed, such as message deduplication and integrity validation. The collision probability offered by this hashing schema can be considered negligible. This is due to the deterministic concatenation order of the message attributes, coupled with using a SHA-2 (256-bit) hashing algorithm.
 
+## Test vectors
+
+Waku message hash computation:
+```
+pubsub_topic = "/waku/2/default-waku/proto" (0x2f77616b752f322f64656661756c742d77616b752f70726f746f)
+message.payload = 0x010203045445535405060708
+message.content_topic = "/waku/2/default-content/proto" (0x2f77616b752f322f64656661756c742d636f6e74656e742f70726f746f)
+message.meta = 0x73757065722d736563726574
+
+message_hash = 0x4fdde1099c9f77f6dae8147b6b3179aba1fc8e14a7bf35203fc253ee479f135f
+```
+
+Waku message hash computation (`meta` attribute not present):
+```
+pubsub_topic = "/waku/2/default-waku/proto" (0x2f77616b752f322f64656661756c742d77616b752f70726f746f)
+message.payload = 0x010203045445535405060708
+message.content_topic = "/waku/2/default-content/proto" (0x2f77616b752f322f64656661756c742d636f6e74656e742f70726f746f)
+message.meta = <not-present>
+
+message_hash = 0x87619d05e563521d9126749b45bd4cc2430df0607e77e23572d874ed9c1aaa62
+```
+
+Waku message hash computation (`payload` length 0):
+```
+pubsub_topic = "/waku/2/default-waku/proto" (0x2f77616b752f322f64656661756c742d77616b752f70726f746f)
+message.payload = []
+message.content_topic = "/waku/2/default-content/proto" (0x2f77616b752f322f64656661756c742d636f6e74656e742f70726f746f)
+message.meta = 0x73757065722d736563726574
+
+message_hash = 0xe1a9596237dbe2cc8aaf4b838c46a7052df6bc0d42ba214b998a8bfdbe8487d6
+```
+
 # Security Considerations
 
 ## Confidentiality, integrity, and authenticity