Tagged Questions
0
votes
1answer
137 views
Can I ensure that a public key derived from a private key is unique?
In asymmetric cryptography, is it possible to ensure that public key derived from a given private key is unique, no matter the algorithm?
-1
votes
4answers
232 views
Does a renewed certificate open old messages?
I have a digital certificate that I use to exchange messages with peers, my certificate expiration date is due next year, suppose I renew this certificate before it expires, will I be able to open the ...
117
votes
7answers
6k views
How do certification authorities store their private root keys?
Knowledge of a CA private key would allow MitM attackers to transparently supplant any certificates signed by that private key. It would also allow cyber criminals to start forging their own trusted ...
2
votes
1answer
1k views
Is your PGP passphrase used to decrypt an encrypted private key, or needed in conjunction with the private key to decrypt the message?
If the former, then if the private key can be used to digitally sign messages, why doesn't your client offer to encrypt this highly sensitive piece of data?
If the latter, then if someone had access ...
