diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 62e18e48c15..c76210d86a4 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -2303,6 +2303,11 @@
     github = "kirelagin";
     name = "Kirill Elagin";
   };
+  kisonecat = {
+    email = "kisonecat@gmail.com";
+    github = "kisonecat";
+    name = "Jim Fowler";
+  };
   kkallio = {
     email = "tierpluspluslists@gmail.com";
     name = "Karn Kallio";
diff --git a/pkgs/tools/security/hashcash/default.nix b/pkgs/tools/security/hashcash/default.nix
new file mode 100644
index 00000000000..a28822ecd95
--- /dev/null
+++ b/pkgs/tools/security/hashcash/default.nix
@@ -0,0 +1,31 @@
+{ stdenv, fetchurl, openssl }:
+
+stdenv.mkDerivation rec {
+  pname = "hashcash";
+  version = "1.22";
+  
+  buildInputs = [ openssl ];
+
+  src = fetchurl {
+    url = "http://www.hashcash.org/source/hashcash-${version}.tgz";
+    sha256 = "15kqaimwb2y8wvzpn73021bvay9mz1gqqfc40gk4hj6f84nz34h1";
+  };
+  
+  makeFlags = [
+    "generic-openssl"
+    "LIBCRYPTO=-lcrypto"
+  ];
+
+  installFlags = [
+    "INSTALL_PATH=${placeholder "out"}/bin"
+    "MAN_INSTALL_PATH=${placeholder "out"}/share/man/man1"
+    "DOC_INSTALL_PATH=${placeholder "out"}/share/doc/hashcash-$(version)"
+  ];
+  
+  meta = with stdenv.lib; {
+    description = "Proof-of-work algorithm used as spam and denial-of-service counter measure";
+    homepage = http://hashcash.org;
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ kisonecat ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7961a049a9a..ae8bf32a4a3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3241,6 +3241,8 @@ in
 
   hardlink = callPackage ../tools/system/hardlink { };
 
+  hashcash = callPackage ../tools/security/hashcash { };
+
   hashcat = callPackage ../tools/security/hashcat { };
 
   hash_extender = callPackage ../tools/security/hash_extender { };