It is simple tool to sign assemblies. The tool also fixes references.
Nuget package http://nuget.org/packages/sign/
To Install from the Nuget Package Manager Console
PM> Install-Package sign
.\sign.exe --key=".\key.snk" --dirs=".\path\to\assemblies\"
-f, --files List of files to sign
-d, --dirs List of directories contains files to sign
-k, --key Required. *.snk file contains public key.
-p, --filter (Default: (dll|exe)$) File selection filter
-v, --verbose Display all messages.
--help Display this help screen.
Pen by Bram van Rijen from The The Noun Project