gnu: Add rust-twofish-0.7.

* gnu/packages/crates-io.scm (rust-twofish-0.7): New variable.

gnu/packages/crates-io.scm

@@ -69847,6 +69847,29 @@ design abstracts away all the internals of the WebSocket protocol but still
 makes them accessible for those who wants full control over the network.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-twofish-0.7
+  (package
+    (name "rust-twofish")
+    (version "0.7.1")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "twofish" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "04w0ii2c0c9ws08aw6c7illh9zql22il9lbwjk1mgir30aiq73m7"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-cipher" ,rust-cipher-0.4))
+       #:cargo-development-inputs
+       (("rust-cipher" ,rust-cipher-0.4)
+        ("rust-hex-literal" ,rust-hex-literal-0.3))))
+    (home-page "https://github.com/RustCrypto/block-ciphers")
+    (synopsis "Twofish block cipher")
+    (description "Twofish block cipher")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-twoway-0.2
   (package
     (name "rust-twoway")