If there is no such thing, how have people found weaknesses in various cryptographic algorithms over the years? The weaknesses are incorrect algorithms.
If there is no such thing, how have people found weaknesses in various cryptographic algorithms over the years? The weaknesses are incorrect algorithms.
They haven't. Excepting RC4, which is wildly different from every other mainstream cipher, the track record of practical block cipher cryptanalysis (of core algorithms) is meager. If you redesigned DES so that it had 16-byte blocks and keys and the round structure to match, but retained the rest of its core design decisions, it'd presumably be viable (if slow).