gnu: Add rust-pkcs1-0.2.

* gnu/packages/crates-io.scm (rust-pkcs1-0.2): New variable.

Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

gnu/packages/crates-io.scm

@@ -38613,6 +38613,32 @@ written with declarative macros.")
     (description "This crate provides utilities for pinning values on the stack.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-pkcs1-0.2
+  (package
+    (name "rust-pkcs1")
+    (version "0.2.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "pkcs1" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "0b2f1a0lf5h53zrjvcqbxzjhh89gcfa1myhf6z7w10ypg61fwsqi"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-der" ,rust-der-0.4)
+        ("rust-pem-rfc7468" ,rust-pem-rfc7468-0.2)
+        ("rust-zeroize" ,rust-zeroize-1))))
+    (home-page "https://github.com/RustCrypto/formats/tree/master/pkcs1")
+    (synopsis "Implementation of Public-Key Cryptography Standards (PKCS) #1")
+    (description
+     "This package provides a pure Rust implementation of Public-Key
+Cryptography Standards (PKCS) #1: RSA Cryptography Specifications Version 2.2
+(RFC 8017)")
+    (license (list license:asl2.0 license:expat))))
+
 (define-public rust-pkg-config-0.3
   (package
     (name "rust-pkg-config")