chacha

commit 12f9b40459a470f2e870b041ac89fd92877287c8
parent 9adca9651d3098b8fa2ce48f663c5ac6105dc90e
Author: Jared Tobin <jared@jtobin.io>
Date:   Sun, 22 Jun 2025 22:55:18 +0400

lib: error docs

Diffstat:
M
lib/Crypto/Cipher/ChaCha20.hs
 | 
5
+++--

1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/Crypto/Cipher/ChaCha20.hs b/lib/Crypto/Cipher/ChaCha20.hs
@@ -269,9 +269,10 @@ _block state@(ChaCha s) counter = do
     PA.writePrimArray s idx (iv + sv)
   serialize state
 
+-- | Error values.
 data Error =
-    InvalidKey
-  | InvalidNonce
+    InvalidKey   -- ^ the provided key was not 256 bits long
+  | InvalidNonce -- ^ the provided nonce was none 96 bits long
   deriving (Eq, Show)
 
 -- RFC8439 2.3