The key exchange is the sore spot here.2.2.1.2 Advantagessimple key management, it only needs one secret key for ciphering and deciphering a symmetrical cryptosystem is faster than an asymmetrical one suitable for encrypting large amounts of data only a system which possesses the secret key are ...
The reason why “entropy estimation” is so hard is in part due to the definition of “random” and in part because we know no way to measure what qualifies as a “random sequence”. Thus you could say the output of any entropy generator is the sum (or in some cases the product) of...
For an attacker, it would be sufficient to have access to either skC or skS to calculate the same shared secret and break the cryptosystem; however, refactoring skS from pkS requires solving the elliptic curve discrete logarithm problem, which is assumed to be intractable on conventional computers...