Collaborate Disseminate
As a hobby project I’m thinking about how to write a secure chat where even all metadata are encrypted so that it is impossible to leak any (meta) information by design.
My basic idea is right now:
Each chat is split in blocks identified b… Continue reading What is the best way to encrypt asymmetric metadata?
Our product stores voucher data in a database.
These voucher data can be retrieved with our app to display a voucher that can be used for payments.
Obviously, these voucher data are extremely sensitive because who ever gets access to them … Continue reading Asymmetric crypto algorithm for encryption with hardware token
When we want to send a message from A to B with confidentiality and non repudiation. I want answer and reasons for both the technique
1)
Why First Encrypt then sign is better ?
2)
Why First sign then Encrypt I’d better than 1)
I am trying to learn the RSA algorithm and program it but I am having difficulties and can’t figure out where I went wrong.
First I choose two prime numbers, p and q, my program chose 5 and 7.
Then I choose the Carmichael value which is th… Continue reading RSA Algorithm not working
I’m writing an authentication system and would like some suggestions on improving its security. Currently, I use RSA to communicate data between the client and the server. Here’s the process:
The client and server each have their public a… Continue reading Most secure way to pass data from client to server?
With exponential growth in the number of human and machine actors on the network and more sophisticated technology in more places, identity in this new era is rapidly becoming a super-human problem, according to RSA. Paradoxically, even in this world w… Continue reading The gap in users’ identity security knowledge gives cybercriminals an opening
Assume I wanted to generate an RSA key pair, and create a backup of it. It is possible to back up the randomness source used to generate the keypair instead of the keypair itself and still recover the keys if needed? Is this a secure pract… Continue reading Is backing up the seed used to generate an RSA key pair a secure practice?
I know it’s possible with ECDSA. How bout RSA?
Continue reading Can we extract public key from signature created by RSA? [migrated]
Cybersecurity professionals are eyeing generative AI’s defensive potential with a mix of skepticism and excitement.
The post Reality check: What will generative AI really do for cybersecurity? appeared first on CyberScoop.
Continue reading Reality check: What will generative AI really do for cybersecurity?
I would like to do some testing with very weak RSA keys, like 128-bit or 256-bit to practice a little bit. But OpenSSL denies the creation of such weak keys with
$ openssl genrsa -out test.key 128
Error setting RSA length
40C7C155167F0000:… Continue reading How to generate a weak (e.g. 128-bit) RSA key? [migrated]