digital signature

This article shows practical examples of how to generate and verify Elliptic curve (ECDSA) signatures using OpenSSL. Step 1. Create private and public EC keys Assuming we want to sign data in test.txt then we need to create hash and sign the hash. In many cases we have digest value Read more…

eIDAS standard can have multiple digital signature profiles. These mean how much proof is embedded into the signature metadata for later validation. Following table contains summary of supported eIDAS digital signature profiles XAdES CAdES PAdES STANDARD BASELINE STANDARD BASELINE STANDARD BASELINE XAdES-BES XAdES-B CAdES-BES CAdES-B PAdES-BES PAdES-B XAdES-EPES CAdES-EPES PAdES-EPES Read more…

CEF eSignature building block is very powerful tool. However it is daunting task to get started with it. Because of the complexity most of the smaller development agencies reject all project that has qualified electronic signature component. There are also big players with big budgets who can help you. For Read more…

ID cards are Smart cards with a chip or NFC.  They can be connected to computers or or other devices using a reader with special apps and drivers. Governments are usually providing these drivers, aka “eID Middleware“, to work with national ID cards. Browsers, where the web signing happens, can Read more…