* https://web.archive.org/web/20180928121748/https://www.gchq....
IANAM (mathematician), but the formulae look RSA-like, though given the compute at the time, it may have been (too) expensive to try implementing.
* https://web.archive.org/web/20180928121748/https://www.gchq....
IANAM (mathematician), but the formulae look RSA-like, though given the compute at the time, it may have been (too) expensive to try implementing.