def cbc_rt.camellia

bend-osdev-crypto@0.1.0.0 · PROOF.bend:970

import Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-legacy-ciphers@0.1.0.0/camellia.bend as Ca
import bend-osdev-legacy-ciphers@0.1.0.0/LAWS.bend as LL
import bend-osdev-crypto@0.1.0.0/modes.bend as Md
import bend-osdev-crypto@0.1.0.0/inst_cm.bend as CM

970def cbc_rt.camellia(+k: Ca.LcCamelliaKey, bs: List<&2, M.CmBlock>, +iv: M.CmBlock) -> {bs == Md.cr.cbc.dec(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.decrypt, ~CM.CrBlk128.xor, k, Md.cr.cbc.enc(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.encrypt, ~CM.CrBlk128.xor, k, bs, iv), iv) : List<&2, M.CmBlock>}:
971  match bs:
972    case Nil{}:
973      {==}
974    case Con{+p, t}:
975      %Equal.sym(M.CmBlock, Ca.LcCamellia.decrypt(k, Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv))), CM.CrBlk128.xor(p, iv), LL.camellia_round_trip(k, CM.CrBlk128.xor(p, iv))) : {Con{p, t} == Con{CM.CrBlk128.xor(_, iv), Md.cr.cbc.dec(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.decrypt, ~CM.CrBlk128.xor, k, Md.cr.cbc.enc(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.encrypt, ~CM.CrBlk128.xor, k, t, Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv))), Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv)))} : List<&2, M.CmBlock>}
976      %cmblock_xx(p, iv) : {Con{p, t} == Con{_, Md.cr.cbc.dec(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.decrypt, ~CM.CrBlk128.xor, k, Md.cr.cbc.enc(~Ca.LcCamelliaKey, ~M.CmBlock, ~Ca.LcCamellia.encrypt, ~CM.CrBlk128.xor, k, t, Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv))), Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv)))} : List<&2, M.CmBlock>}
977      %cbc_rt.camellia(k, t, Ca.LcCamellia.encrypt(k, CM.CrBlk128.xor(p, iv))) : {Con{p, t} == Con{p, _} : List<&2, M.CmBlock>}
978      {==}