Collaborate Disseminate
I tried factorizing 100 digit numbers in Wolfram and it worked. But I need to put that inside my program so I tried reverse engineering Wolfram’s way of prime factorization, however, this program is slow and will never work on numbers with… Continue reading How to prime factorize 100 digit number public key? [closed]
I am currently writing a program that sends an encrypted file to the client, and I don’t want the user to be able to access the file directly (though the client program will operate on it).
Since the client will be written in Java, which i… Continue reading Best ways to store private keys on a client?
I’m trying to verify that a smartcard (possibly doctored by an attacker) has access to the (ECDSA P-384) private key for which I was given a (signed) public key, in order to verify that the card is genuine. In order to do that, I should pa… Continue reading Verify signature without digest
I know encrypting something with my private key is used for signing. To prove that the message is indeed coming from me.
But what about if I sign something with my public key? That would mean that only I could decrypt it with my private ke… Continue reading What happens when I encrypt something with my RSA Public Key?
I know it will not encrypt anything. But is 1 valid as a public key?
Continue reading Is choosing 1 as a public key valid in the RSA algorithm? [migrated]
On this https://jwt.io/ application, you can paste a jwt and it returns you a public key. How is this public key generated, and how is it exported? Is it contained inside the JWT, and if it is, then how? In raw format?
Somebody out there has taken a big dislike to Robert J. Hansen (‘rjh’) and Daniel Kahn Gillmor (‘dkg’), two well-regarded experts in the specialised world of OpenPGP email encryption. Continue reading OpenPGP experts targeted by long-feared ‘poisoning’ attack
Public and private key pairs lie at the core of how we do encryption here at PreVeil. They are the basis for the end-to-end encryption we use as well as asymmetric cryptography in general. We often find ourselves explaining the concepts of how t… Continue reading What are public and private key pairs and how do they work
The second report in a week has analysed phishing attacks that are attempting – and probably succeeding – in bypassing older forms of two-factor authentication (2FA). Continue reading More phishing attacks on Yahoo and Gmail SMS 2FA authentication
Adobe suffered at a minimum a PR black eye on Friday when one of its private PGP keys was inadvertently published to its Product Incident Security Response Team (PSIRT) blog. Continue reading Adobe Private PGP Key Leak a Blunder, But It Could Have Been Worse