chacha

commit 915a4e8f3003172c7506029e3cc29066e09fb7df
parent f35e58b1f912f0f37fa7f2a88635a0238e80ea7d
Author: Jared Tobin <jared@jtobin.io>
Date:   Sat, 16 May 2026 12:53:52 -0230

misc: s/pure/fast

Diffstat:
M
README.md
 | 
5
++---
M
flake.nix
 | 
2
+-
M
lib/Crypto/Cipher/ChaCha20.hs
 | 
2
+-
M
ppad-chacha.cabal
 | 
4
++--

4 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/README.md b/README.md
@@ -4,7 +4,7 @@
 ![](https://img.shields.io/badge/license-MIT-brightgreen)
 [![](https://img.shields.io/badge/haddock-chacha-lightblue)](https://docs.ppad.tech/chacha)
 
-A pure Haskell implementation of the ChaCha20 stream cipher as specified
+A fast Haskell implementation of the ChaCha20 stream cipher as specified
 by [RFC8439][8439].
 
 ## Usage
@@ -36,8 +36,7 @@ Haddocks (API documentation, etc.) are hosted at
 
 ## Performance
 
-The aim is best-in-class performance for pure, highly-auditable Haskell
-code.
+The aim is best-in-class performance.
 
 Current benchmark figures on the simple "sunscreen input" from RFC8439
 on an M4 Silicon MacBook Air look like (use `cabal bench` to run the
diff --git a/flake.nix b/flake.nix
@@ -1,5 +1,5 @@
 {
-  description = "A pure Haskell ChaCha stream cipher.";
+  description = "A fast Haskell ChaCha stream cipher.";
 
   inputs = {
     ppad-base16 = {
diff --git a/lib/Crypto/Cipher/ChaCha20.hs b/lib/Crypto/Cipher/ChaCha20.hs
@@ -10,7 +10,7 @@
 -- License: MIT
 -- Maintainer: Jared Tobin <jared@ppad.tech>
 --
--- A pure ChaCha20 implementation, as specified by
+-- A fast ChaCha20 implementation, as specified by
 -- [RFC 8439](https://datatracker.ietf.org/doc/html/rfc8439).
 
 module Crypto.Cipher.ChaCha20 (
diff --git a/ppad-chacha.cabal b/ppad-chacha.cabal
@@ -1,7 +1,7 @@
 cabal-version:      3.0
 name:               ppad-chacha
 version:            0.2.1
-synopsis:           A pure ChaCha20 stream cipher
+synopsis:           A fast ChaCha20 stream cipher
 license:            MIT
 license-file:       LICENSE
 author:             Jared Tobin
@@ -11,7 +11,7 @@ build-type:         Simple
 tested-with:        GHC == 9.10.3
 extra-doc-files:    CHANGELOG
 description:
-  A pure ChaCha20 stream cipher and block function.
+  A fast ChaCha20 stream cipher and block function.
 
 flag llvm
   description: Use GHC's LLVM backend.