If two or more encryption algorithms are used together, how do we compute the strength of the final encryption?
And how would the application perform against quantum computers?
The first two tables are accurate, correct?
In the third table where we combine two encryptions together, can we calculate the key length? And bits of encryption? Is it correct?
In the 3rd table, the bits are just added, correct?
encryption | Key length | bits of encryption AES-128 | 128 | 128
Now, if we do add two of them together (combine using cascade encryption)
AES-128 + AES-128 = 256 key length ? | 256 bits of encryption ?
Is that correct?
Or what is the correct answer for:
AES-128 + AES-128 = ___ key length ? ___ bits of encryption ?