PKCS#7, CMS, CAdES signing and verification - SecureBlackbox®
PKIBlackbox package of SecureBlackbox supports digital signing of data and validation of signatures using X.509 certificates according to PKCS#7 / CMS and CAdES standards.
You can sign and verify any data (text data is being treated as binary and signed as-is) and create enveloping (wrapping) and detached signature types.
Timestamping of digital signatures is supported using CAdES standard. Supported CAdES profiles include CAdES-BES, CAdES-EPES, CAdES-T, CAdES-X, CAdES-XL, CAdES-A.