What is the best nuclear missile crypto system?
- by The Rook
You are on a submarine and there is an encrypted message that you want to read. Two people must use their keys at the same time in order to obtain the plain text. What is best cryptographic primitive to use? Are the following two implementations suitable?
plain_text=decrypt(Key1 XOR key2,ciper_text,IV)
plain_text=decrypt(Key1,rc4_encrypt(key2,ciper_text,IV2),IV1)