Collaborate Disseminate
I noticed some new quantum cryptography algorithms are being developed.
I know very little about quantum computing but my understanding is that it will just be a much more powerful computer and therefore all the current key sizes that we u… Continue reading Why are quantum-proof cryptography algorithms being developed? [migrated]
I’ve seen many HN comments bashing on SMS being insecure. But WhatsApp and signal both use it as their primary authentication method so it can’t be that bad?
Why is it bad? What attacks are it susceptible to?
Continue reading Is SMS a secure authentication method? [duplicate]
I am building an E2EE chat app where there is one asymmetric key pair per group and one asymmetric key pair per user. All messages in a group chat are encrypted with the group public key and decrypted with the group private key.
When Alice… Continue reading How can I verify the hash of the plain text without being able to decrypt the cipher text?