Collaborate Disseminate
I’m new to cryptography. I’m using Swift CryptoKit and I’ve figured out how to seal the data with a symmetric key. Now I can send the sealed data to another user, but they wouldn’t be able to decrypt it without the key. But if someone were… Continue reading How do I securely send a symmetric key between two clients? [duplicate]
I know that both algorithms are similar to the Diffie-Hellman key exchange and are used for exchanging secret keys in a group but I still cannot figure out the key differences between both algorithms.
Is the difference only in the number o… Continue reading Explanation of Burmester-Desmedt group key exchange and Ingemarsson-Tang-Wong (ITW) group key exchange algorithm [migrated]
On our Windows Servers, we have disabled the following key exchange algorithms in registry
SCHANNEL\KeyExchangeAlgorithms\ECDH
SCHANNEL\KeyExchangeAlgorithms\PKCS
This leaves us with only 2 available Cipher Suites that could be offered i… Continue reading Enabling ECDH KeyExchangeAlgorithm in Windows Schannel while disabling CBC based ciphersuites
There is a server (app) that uses OpenSSL to allow clients establish secure connection.
The certificate info for server public key is:
Certificate:
Data:
Version: 1 (0x0)
Serial Number: 1 (0x1)
Signature Algorit… Continue reading How server key limits protocols and ciphers used? [duplicate]
If the key exchange happens when using lets say Wireguard or any other protocols that use IKA, and the connection never drops, could the ISP still detect the VPN traffic using Deep Packet Inspection?
Encryption schemes typically are built on the idea that even if a man in the middle attacker knows exactly what kind of encryption you’re using, they cannot decrypt your messages without the key.
As far as I’m aware, the only mechanism whi… Continue reading Can a man in the middle tell what kind of encryption you’re using from a key exchange? [migrated]
First asked on StackOverflow and referred to this board, here:
I have an embedded system (Netburner 5441x) that encodes public-private RSA keypairs into devices. I have ported OpenSSL into the system but the embedded processor cannot make … Continue reading What is the right way to transfer public-private keypairs over intranet?
I need to know the key exchange of the DHE-DSS cipher suites, will it be the same as mentioned in DHE-RSA?
Continue reading Need to know the key exchange value of the following cipher suites [migrated]
I need to know the key exchange of the DHE-DSS cipher suites, will it be the same as mentioned in DHE-RSA?
Continue reading Need to know the key exchange value of the following cipher suites [migrated]
Given an one-key cipher such that:
E[k1,E(k2,m)]=E[k2, E(k1, m)]
Is there any key distribution protocol that involves only two parties (Alice and Bob) without the key distribution center?
The protocol should allow Alice to send a session k… Continue reading Key distribution protocol involves only 2 parties, given E[k1,E(k2,m)]=E[k2, E(k1, m)]