Hardcoded md5 serial number crack

[chants]

So it looks like you want to do a first pre image attack on MD5.

Wait a second if they are chaining, that opens up a whole new set of opportunities. Why not look into length extension attack and such. You need to explain what is meant by "chaining" in mathematical detail e.g. h(h(bytes[12:16])^bytes[8:12]) where ^ is xor or even concatenation.

The time it takes to handle a group of 4 !!!! Should then based on that list for the final combos be the time per final pair to get the next to last combo etc.

If you want to pass remote validation checks, it may still be impossible as they may further reduced the allowable set or notice unusual activity ertc, no guarantees.