Tagged Questions
5
votes
1answer
184 views
Most efficient key algorithm for a TLS server key?
Let's assume I want to setup a HTTPS service on a modern-but-no-so-speedy x86 server without any form of hardware cryptographic accelerator.
Which key algorithm should I choose for the server key in ...
0
votes
1answer
180 views
Purpose and Uses of Root SSL Certificates
I'm trying to wrap my head around the technical inner-workings of SSL and one of the last things I'm choking with is the concept of "root" SSL certificates (as opposed to "non-root"?!?).
When and ...
6
votes
1answer
2k views
What is the actual value of a certificate fingerprint?
In a x509 digital certificate there is a "certificate fingerprint" section. It contains md5, sha1 and sha256. How are these obtained, and during the SSL connection, how are these values checked for?
4
votes
1answer
2k views
openssl verify signature
For S/MIME, I now know I can verify PKCS#7 detached signatures with:
openssl smime -verify -in detachedsign.pem -content content.txt
But what about non-MIME messages?
So if I sign the message ...
5
votes
4answers
3k views
How do the processes for digital certificates, signatures and ssl work?
I have been trying to understand how ssl works. Instead of Alice and Bob, lets consider client and server communication.
Server has a digital certificate acquired from a CA. It also has public and ...
5
votes
3answers
243 views
DHE exchange and client authentication
If a server has a known public key and a Diffie-Helman exchange is performed and signed by that key, is there any benefit to authenticating the client before establishing a secure channel instead of ...
16
votes
9answers
582 views
Does hashing a file from an unsigned website give a false sense of security?
Consider this. Many websites with software downloads also make available MD5 or SHA1 hashes, for users to verify the integrity of the downloaded files. However, few of these sites actually use HTTPS ...
