[bug#51289] [PATCH 3/4] gnu: Add BLAKE3 Rust implementation.

[Leo Famulari <leo@famulari.name>]

* gnu/packages/crypto.scm (rust-blake3-0.3): New variable.
---
 gnu/packages/crypto.scm | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index 823b888b82..3b5957ef23 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 David Thompson <davet@gnu.org>
 ;;; Copyright © 2015, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
-;;; Copyright © 2016, 2017, 2018, 2019 Leo Famulari <leo@famulari.name>
+;;; Copyright © 2016, 2017, 2018, 2019, 2021 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016 Lukas Gradl <lgradl@openmailbox>
 ;;; Copyright © 2016–2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
@@ -1500,3 +1500,37 @@ (define-public cryfs
 additional security and privacy measures such as hiding file sizes and directory
 structure.  However CryFS is not considered stable yet by the developers.")
     (license license:lgpl3+)))
+
+(define-public rust-blake3-0.3
+  (package
+    (name "rust-blake3")
+    ;; Version 1 requires Rust >= 1.51.
+    ;; <https://github.com/BLAKE3-team/BLAKE3/releases/tag/1.0.0>
+    (version "0.3.8")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (crate-uri "blake3" version))
+        (file-name (string-append name "-" version ".tar.gz"))
+        (sha256
+          (base32 "1cr5l5szgxm632px41kavl6cgils8h6yhdfkm6jsc5jgiivqai5n"))))
+    (build-system cargo-build-system)
+    (arguments
+      `(#:skip-build? #t
+        #:cargo-inputs
+        (("rust-arrayref" ,rust-arrayref-0.3)
+         ("rust-arrayvec" ,rust-arrayvec-0.5)
+         ("rust-cc" ,rust-cc-1)
+         ("rust-cfg-if" ,rust-cfg-if-0.1)
+         ("rust-constant-time-eq" ,rust-constant-time-eq-0.1)
+         ("rust-crypto-mac" ,rust-crypto-mac-0.8)
+         ("rust-digest" ,rust-digest-0.9)
+         ("rust-rayon" ,rust-rayon-1))))
+    (home-page "https://github.com/BLAKE3-team/BLAKE3")
+    (synopsis "BLAKE3 hash function Rust implementation")
+    (description "This crate provides the official Rust implementation of the
+BLAKE3 cryptographic hash function.  BLAKE3 is faster than MD5, SHA-1, SHA-2,
+SHA-3, and BLAKE2.")
+    ;; Users may choose between these two licenses when redistributing the
+    ;; program provided by this package.
+    (license (list license:cc0 license:asl2.0))))
-- 
2.33.1