A sign/countersign contract client and server implementation and its supporting toolchain, intended primarily for software licencing.

Technical Details

Contracts are generated and securely signed locally, then remotely countersigned using public-key cryptography (ECDSA) over HTTP/HTTPS.

Exit Codes

Unless otherwise stated commands returns 0 on success, 1 on usage error, 2 on authorization error and 3+ for any other error.

Unexpected errors may produce unexpected output.

Glossary

hf hash file

gkp generate key pair

sf sign file

vf verify file

gc generate contract

pc print contract

scc sign/countersign contract

sccd sign/countersign contract daemon