In the world of digital solutions, security is key. And one of the most important mechanisms that guarantees this security is the following. cryptographic envelope. While it sounds like a term from a spy movie, it's actually an everyday part of electronic signatures that protects Your data, identity and proof of signature of the document.
The cryptographic envelope is digital package, which links the document, the electronic signature and all the information needed to verify it.
It is because of her:
It's like putting a traditional paper document in an envelope, sealing it and stamping it with your name and the date.
Format | Envelope type | Can it be called a cryptographic envelope? | Example |
Yes - always | Yes, the file .p7s or .asice is a classic envelope | contract.docx.p7s | |
XAdES | Yes - often | Yes, especially when a container is used .asice | invoice.xml.asice |
PAdES | Yes - but „embedded” | Yes, although the signature is embedded in the PDF, the PDF file becomes both a document and an envelope | offer.pdf |
As you can see, each formats creates its own version of the cryptographic envelope - sometimes as a separate file, sometimes as a container, and sometimes as an embedded signature.
Note: different technical approaches, same idea
Thanks to the envelope:
When signing a document in proCertum SmartSign, you can choose your preferred format: PAdES, CAdES or XAdES. The application itself creates the appropriate cryptographic envelope:
The application automatically embeds the certificate, timestamp (if you choose) and takes care of the correctness of the structure.
WebNotarius is a web application from Asseco that allows:
It's an ideal tool when you need to confirm the authenticity of a signature, but don't want to install additional programs.
In summary, kcrypto operta is not an add-on - it the foundation of a secure electronic signature. It is thanks to her that the signed document is:
Solutions from Asseco - proCertum SmartSign i WebNotarius - create and handle envelopes automatically. You just sign, and all the cryptography happens in the background.
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