1 files changed, 34 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/tools/security/sha1collisiondetection/default.nix b/nixpkgs/pkgs/tools/security/sha1collisiondetection/default.nix
new file mode 100644
index 000000000000..38da14484147
--- /dev/null
+++ b/nixpkgs/pkgs/tools/security/sha1collisiondetection/default.nix
@@ -0,0 +1,34 @@
+{ stdenv, fetchFromGitHub, libtool, which }:
+
+stdenv.mkDerivation  rec {
+  name = "sha1collisiondetection-${version}";
+  version = "1.0.3";
+
+  src = fetchFromGitHub {
+    owner = "cr-marcstevens";
+    repo = "sha1collisiondetection";
+    rev = "stable-v${version}";
+    sha256 = "0xn31hkkqs0kj9203rzx6w4nr0lq8fnrlm5i76g0px3q4v2dzw1s";
+  };
+
+  makeFlags = [ "PREFIX=$(out)" ];
+
+  doCheck = true;
+
+  nativeBuildInputs = [ libtool which ];
+
+  meta = with stdenv.lib; {
+    description = "Library and command line tool to detect SHA-1 collision";
+    longDescription = ''
+      This library and command line tool were designed as near drop-in
+      replacements for common SHA-1 libraries and sha1sum. They will
+      compute the SHA-1 hash of any given file and additionally will
+      detect cryptanalytic collision attacks against SHA-1 present in
+      each file. It is very fast and takes less than twice the amount
+      of time as regular SHA-1.
+      '';
+    platforms = platforms.all;
+    maintainers = with maintainers; [ leenaars ];
+    license = licenses.mit;
+  };
+}