Sentences with phrase «symmetric cipher»

A symmetric cipher is an algorithm which takes a key of a given size, and uses that key to scramble input data.

Since it seems there were no restrictions on the security of hash algorithms, and as it is technically possible to create a symmetric cipher using a hash algorithm, would it have been legal to export such a system without it being classified as munitions?

So all you have to do is negotiate the session key with elliptic curve math Diffie - Hellman, use the agreed key for a 128 - bit AES symmetric cipher in Galois / Counter mode, and verify server certificates with SHA256.

These export restrictions required that all symmetric ciphers be...

I believe symmetric ciphers were limited to 64 bits domestically, and 40 bits internationally?

These export restrictions required that all symmetric ciphers be capped at a small enough key size that they could be feasibly cracked by US intelligence agencies.