Collaborate Disseminate
The popularity of eSignature solutions has skyrocketed in the last year, as part of companies’ digital transformation efforts in the COVID-19 environment. Organizations considering eSignature solutions need to be thoughtful about the eSignature technol… Continue reading How do I select an eSignature solution for my business?
I sign my emails using PGP/MIME through Thunderbird. The scheme creates a detached signature of the whole email (body and headers), and add it as a separate attachment. The signature is valid for that email, and only for that email because… Continue reading Prevent PGP Signature from being Forwarded [closed]
A little bit of background: I want to sign my emails for my own safety. None of my intended recipients are users of digital signatures. If one day someone were to impersonate me, I can prove my own identity, and disprove the identity of my… Continue reading Standard form of email signature
Why are Leighton-Micali Signature Scheme (LMS) and eXtended Merkle Signature Scheme (XMSS) no candidates in the NIST Post-Quantum Cryptography Standardization process?
Both are mentioned in the final draft of Recommendation for Stateful Ha… Continue reading Why are LMS and XMSS no candidates in the Post-Quantum Cryptography Standardization process?
I am going through a short course on security. One of the videos is talking about non-repudiation in regards to cryptography and sending messages between Alice and Bob. This video talks about how digital signatures can be used to verify th… Continue reading How can digital signatures assure the sender their message has been correctly received?
I develop an app and was able to gather some clients, the next step in the application backlog is a Licensing module.
I used and modified some code that helped me in the matter and was able to accomplish a simple licensing system. Although… Continue reading Licensing application approach [closed]
The popularity of eSignature solutions has skyrocketed in the last year, as part of companies’ digital transformation efforts in the COVID-19 environment. However, not all eSignatures are necessarily right for business. Considering eSignature solutions… Continue reading Not all eSignature solutions are necessarily right for business
Frankly, I wasn’t sure whether this belongs in crypto.stackexchange.com or here, so forgive me. I’ve been going through a book where in one of the chapters the author tries to illustrate public key cryptography by imagining a "four-st… Continue reading Understanding public key cryptography example
I need to receive emails and put them in different "inboxes". Identifying and validating an inbox involves a database hit in order to search for the to-address.
I would like to not hit the db if I know that the to-address is not … Continue reading Possible to generate short signed strings?
When I use XAdES for file types other than XML, how is the file digested for signature?
My understanding is that XAdES is XMLDSIG with a couple extra fields. For XML signatures, the signature is embedded directly into the XML. For other fi… Continue reading XMLDSIG and XAdES for non-XML file types