5

There are some other interesting benefits around the "WHY": You can catalog sign non-executables. inf, ini etc...That's not possible with an embedded Authenticode signature. Sometimes you want to make sure non-PE files have not been tampered with. If you take a binary on system A and copy it to system B, you will break the signature if the required catalog ...


3

The use of the private key cannot reasonably be called “encrypting” since the security objective is to ensure authentication, not confidentiality. There can't be any encryption going on since all the information to reverse it is public. What you describe is a signature scheme, specifically a signature scheme with recovery since the same encoded message ...


1

Hash is perfectly usable here with a different approach. Imagine you have the text. Put your name (or other information you see fit) at the end of the text anh hash the whole thing. Then publish the text WITHOUT your name, but WITH the hash. When you need to prove authorship - just publish the text with your name that hashes to the originally published ...


1

A signature scheme can only then assure integrity, if the signing keys are kept secret. Here's a definition for integrity: Data remain in their given state if at rest. Side notes: Integrity is lost, when data is edited. If they are edited by someone that is authorized to change them, integrity is still lost. If a scheme is in place, to authorize systems ...


1

The fact that it is an EV certificate appears in the certificate policy attribute that is shown in your image. The certificate policy identifies the rules under which the CA has issued them. In this case, it shows that digicert claims it was expended according to the policies with OIDs 2.16.8401.114412.3.1 and 2.23.140.1.4.1. Each CA assign its own OID to ...


1

In DKIM the senders MTA signs the message and some headers using a private key only known to this MTA. The signature was explicitly designed to survive redistribution of the unmodified mail. This kind of redistribution is what you are doing with telnet. In other words: the DKIM signature is specific to the mail itself and not specific to the process of ...


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