Alexander gave me a working code on Java, which counts the ECP that I needed.
I was very busy. Thank you !
I was very busy. Thank you !
Olexandr Basalaiev
Winning proposal
4
0
Budget: 2000 UAH Deadline: 30 days
Experience with domestic cryptography
(For the bet I need to get 80 characters from the discussion of the scope)
I found here you didn’t have a completely signed file(So it would be simple),You have a file of a special format asice
https://en.wikipedia.org/wiki/Associated_Signature_Containers
This zip archive inside which your source file is there the same meta-inf folder and in it sign.xml .and in this file there are certificates(which must be obtained and broken to the Ukrainian crypto algorithm) and digital signature and other info) In general more complicated(This our ukr portal knew this format and its specification-So uploaded and downloaded files are the same by hash(I first this brain brought out))- in that file all asice magic in sign.xml
