DSS offers  REST and SOAP WebServices  with the following functions :

• Signature
  • Compute the digest to be signed (getDataToSign);
  • Incorporate the signature value in the final file (signDocument);
  • Extend an existing signature;
  • Validate a signature;
  • Timestamp a file.
• Server signing
  • Retrieve keys from a token;
  • Retrieve a key from a token by its alias;
  • Sign data toBeSigned with a key by given alias.
  • Sign digest with a key by given alias.
• Document validation
  • Validate a document (signed or timestamped);
  • Retrieve an original signed document.
• Certificate validation
  • Validate a certificate.
• Remote timestamp
  • Timestamp digest.

These services hide the signature complexity (CAdES, PAdES, XAdES, JAdES, ASiC) and made integration easier.

Since DSS v5.6, the REST WebServices are compliant with OpenAPI Specification.