if anybody is interested i found the way to encrypt xiaomi.eu rom.
I downloaded miui_MIMIX2SGlobal_V10.3.2.0.PDGMIXM_7e27e6e0d5_9.0.zip and xiaomi.eu_multi_MIMix2S_V10.3.1.0.PDGCNXM_v10-9.zip
than i extracted these three files from global rom:
vendor.transfer.list
vendor.new.dat.br...