CSC - Cloud Signature Consortium

A CSC RSSP - Cloud Signature Consortium Remote Signature Service Provider -, written in Node.js using SoftHSMv2 as HSM. This application follows the CSC API V1.0.4.0 specification. It also includes an OAuth 2.0 server for your particular needs.

An ASP.NET Core variant is available at cloud-signature-consortium-asp-net-core

Installing globally via npm:

npm install -g csc-server

Prerequistes

1. Install Mongodb from mongodb.com

2. Install OpenSC that is needed for interacting with the SoftHSMv2 dll module. We will use pkcs11-tool exe.

3. Install SoftHSMv2 or just copy it from the project's release binaries to the resources folder.

• Set environment variabile SOFTHSM2_CONF=%path_to_softhsm2\lib\softhsm2.conf%
• In the file path\to\softhsm2.conf, set directories.tokendir=%path_to_softhsm2\tokens_folder%
• Initialize a new softhsm2 token with %path_to_softhsm2\bin\softhsm2-util.exe%

softhsm2-util --init-token --slot 0 --label "mytoken"

4. Install OpenSSL or just copy it from the project's release binaries to the resources folder.

• Generate a new certificate and private key for your https/SSL/TLS service and put them in the resources folder of the application (the one provided in config.json. See point 5):

openssl req -x509 -newkey rsa:4096 -keyout keySSL.pem -out certSSL.pem -days 365

In the release version you will find the following binaries:

• OpenSSL 1.1.1.d x86 (used by the app)
• SoftHSMv2 (used by the app)
• PKCS11Admin - 0.5.0 (Optional GUI to help you see the token objects)

5. Configure the service settings. See Configuration.

After you successfully installed and configured all the prerequistes, you can proceed to Usage.

Usage

Create your own user:

csc-server --createUser --user="username" --pass="password" --pin="pin"

If you plan to use OAuth 2.0, create your own client:

csc-server --createClient --name=name --id=id --secret=secret --redirectUri=redirectUri

Start CSC Server:

csc-server -l

Now you have a fully functional CSC server.

Example Usage

Usage:
   csc-server [options]

Options:
  --createUser    Create a user using the arguments below.
       --user           Username of the user.
       --pass           Password of the user.
       --pin            PIN associated with the generated private key.

  --createClient  Create an OAuth 2.0 client using the arguments below.
       --name          Name of the client application.
       --id            Client id.',
       --secret        Client_secret.
       --redirectUri   Redirect_uri.

  --listen, -l     Start the server
       --silent, -s     Suppress log messages from output.

  --version, -v    Print the version and exit.
  --help, -h       Print this list and exit.
Examples
   csc-server -l
   csc-server --createUser --user=username --pass=password --pin=pin
   csc-server --createClient --name=name --id=id --secret=secret --redirectUri=redirectUri

Configuration

The configuration file is located at %userprofile%/AppData/Roaming/npm/node_modules/csc-server/config/config.json. Feel free to customize and provide the correct paths of the software you installed in the Prerequistes.

{
    "csc": {
        "access_token_expiring_time": 3600,
        "refresh_token_expiring_time": 7200,
        "sad_expiring_time": 1800,
        "code_expiring_time": 600,
        "otp_expiring_time": 1800,
        "max_results": 10
    },
    "https": {
        "host": "0.0.0.0",
        "port": "8080",
        "certificate": "D:/Scoala/Dizertatie/CSC Framework/resources/certSSL.pem",
        "private_key": "D:/Scoala/Dizertatie/CSC Framework/resources/keySSL.pem",
        "private_key_password": "0000"
    },
    "database_url": "mongodb://localhost:27017/csc",
    "resources_path": "D:/Scoala/Dizertatie/CSC Framework/resources",
    "softhsm2_driver_path": "D:/Scoala/Dizertatie/CSC Framework/utils/SoftHSMv2/lib/softhsm2.dll",
    "openSSL_path": "D:/Scoala/Dizertatie/CSC Framework/utils/openssl-1.1.1-x86/openssl.exe",
    "openSC_path": "C:/Program Files (x86)/OpenSC Project/OpenSC/tools/pkcs11-tool.exe",
    "token": {
        "slot": "189467408",
        "pin": "0000"
    }
}

You can also configure the endpoint /csc/v1/info results in the %userprofile%/AppData/Roaming/npm/node_modules/csc-server/config/info.json configuration file.

{
    "specs": "1.0.3.0",
    "name": "CSC Provider",
    "logo": "https://service.domain.org/images/logo.png",
    "region": "RO",
    "lang": "en-US",
    "description": "An efficient remote signature service",
    "authType": [
            "basic",
            "oauth2code"
    ],
    "oauth2": "https://www.domain.org/",
    "methods": [
            "auth/login",
            "auth/revoke",
            "credentials/list",
            "credentials/info",
            "credentials/authorize",
            "credentials/sendOTP",
            "signatures/signHash",
            "oauth2/authorize",
            "oauth2/token"
    ]
}

Supported PKCS#1 Signing Types

Currently, only CKM_RSA_PKCS is supported with SHA1, SHA256, SHA512. Only no-padded base64 hashes needs to be provided at the service endpoints.

Testing

A Postman request collection is provided in docs folder. There is also a json collection containing the environment variabiles used in the requests based on the server responses through Tests. They can be imported in Postman using File > Import.

Keep in mind that you must open a browser an enter the links provided in the collection for the oauth2/authorize service and oauth2/authorize credentials to actually test them (We simulate an application client throught our browser). After login and user acceptance, the application client's redirect_uri will be called with an authorization code provided in the link as a query parameter. You should copy that code and paste it in the Postman request body of /oauth2/token.

Also you should set SSL certificate verification to off from File > Settings > General, because the service's certificate is not trusted by our computer.

Feel free to test the application.

Authors

• Simion Robert George - simionrobert

See also the list of contributors who participated in this project.

I really appreciate all kinds of feedback and contributions.

Aditional notes: If you have some issues referring parts of code in the master branch add them in the issues section.

License

This project is licensed under the MIT License - see the LICENSE file for details