219 lines
9.3 KiB
Python
219 lines
9.3 KiB
Python
from src.models import (
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SubstitutionKey, ClientKeys, MutualKeys, ClientPersistentDataKeys, ClientEphemeralDataKeys,
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MutualPersistentDataKeys, MutualEphemeralDataKeys, ClientPersistentMediumKeys, ClientEphemeralMediumKeys,
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MutualPersistentMediumKeys, MutualEphemeralMediumKeys, DarcKey, OuterKey, Mask
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)
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def darc_phase2(
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alphabet_phase1: SubstitutionKey,
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medium_phase1: SubstitutionKey,
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client_keys: ClientKeys,
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mutual_keys: MutualKeys
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):
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alphabet_phase2 = receive_alphabet(
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alphabet_phase1,
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client_keys.persistent.data,
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client_keys.ephemeral.data,
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mutual_keys.persistent.data,
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mutual_keys.ephemeral.data
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)
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medium_phase2 = receive_medium(
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medium_phase1,
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client_keys.persistent.medium,
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client_keys.ephemeral.medium,
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mutual_keys.persistent.medium,
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mutual_keys.ephemeral.medium
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)
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return alphabet_phase2, medium_phase2
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def receive_alphabet(
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alphabet_phase1: SubstitutionKey,
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client_persistent_data_keys: ClientPersistentDataKeys,
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client_ephemeral_data_keys: ClientEphemeralDataKeys,
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mutual_persistent_data_keys: MutualPersistentDataKeys,
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mutual_ephemeral_data_keys: MutualEphemeralDataKeys
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):
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mdi1 = mutual_persistent_data_keys.inner_key_1 << mutual_ephemeral_data_keys.inner_key_1
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mdo1 = mutual_persistent_data_keys.outer_key_1 << mutual_ephemeral_data_keys.outer_key_1
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mdo2 = mutual_persistent_data_keys.outer_key_2 << mutual_ephemeral_data_keys.outer_key_2
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mdo3 = mutual_persistent_data_keys.outer_key_3 << mutual_ephemeral_data_keys.outer_key_3
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cdi1 = client_persistent_data_keys.inner_key_1 << client_ephemeral_data_keys.inner_key_1
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cdo1 = client_persistent_data_keys.outer_key_1 << client_ephemeral_data_keys.outer_key_1
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cdo2 = client_persistent_data_keys.outer_key_2 << client_ephemeral_data_keys.outer_key_2
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ceda = client_ephemeral_data_keys.alpha_key
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cpda = client_persistent_data_keys.alpha_key
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mpda = mutual_persistent_data_keys.alpha_key
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alphabet_phase2 = ((((
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alphabet_phase1 ^
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(((ceda ^ cpda ^ mpda) < mdo1) << (mdi1 < mdo2))
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) < ~mdo3)) << cdi1) < (mdo3 << cdo1 << cdo2)
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return alphabet_phase2
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def receive_medium(
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medium_phase1: SubstitutionKey,
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client_persistent_medium_keys: ClientPersistentMediumKeys,
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client_ephemeral_medium_keys: ClientEphemeralMediumKeys,
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mutual_persistent_medium_keys: MutualPersistentMediumKeys,
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mutual_ephemeral_medium_keys: MutualEphemeralMediumKeys
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):
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mmi1 = mutual_persistent_medium_keys.inner_key_1 << mutual_ephemeral_medium_keys.inner_key_1
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mmo1 = mutual_persistent_medium_keys.outer_key_1 << mutual_ephemeral_medium_keys.outer_key_1
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mmo2 = mutual_persistent_medium_keys.outer_key_2 << mutual_ephemeral_medium_keys.outer_key_2
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mmo3 = mutual_persistent_medium_keys.outer_key_3 << mutual_ephemeral_medium_keys.outer_key_3
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cmi1 = client_persistent_medium_keys.inner_key_1 << client_ephemeral_medium_keys.inner_key_1
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cmo1 = client_persistent_medium_keys.outer_key_1 << client_ephemeral_medium_keys.outer_key_1
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cmo2 = client_persistent_medium_keys.outer_key_2 << client_ephemeral_medium_keys.outer_key_2
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cema = client_ephemeral_medium_keys.alpha_key
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cpma = client_persistent_medium_keys.alpha_key
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mpma = mutual_persistent_medium_keys.alpha_key
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medium_phase2 = (
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(
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medium_phase1 ^
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(((cema ^ cpma ^ mpma) < mmo1) << (mmi1 < mmo2))
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) << (cmi1 < mmo3)
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) < (cmo1 << cmo2)
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return medium_phase2
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def transmit_alphabet(
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alphabet_phase2: DarcKey,
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client_persistent_data_keys: ClientPersistentDataKeys,
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client_ephemeral_data_keys: ClientEphemeralDataKeys,
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mutual_persistent_data_keys: MutualPersistentDataKeys,
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mutual_ephemeral_data_keys: MutualEphemeralDataKeys
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):
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#mpdi2 = mutual_persistent_data_keys.inner_key_2
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mdi2 = mutual_persistent_data_keys.inner_key_2 << mutual_ephemeral_data_keys.inner_key_2
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mdi1 = mutual_persistent_data_keys.inner_key_1 << mutual_ephemeral_data_keys.inner_key_1
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mdo1 = mutual_persistent_data_keys.outer_key_1 << mutual_ephemeral_data_keys.outer_key_1
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mdo2 = mutual_persistent_data_keys.outer_key_2 << mutual_ephemeral_data_keys.outer_key_2
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mdo3 = mutual_persistent_data_keys.outer_key_3 << mutual_ephemeral_data_keys.outer_key_3
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cdi1 = client_persistent_data_keys.inner_key_1 << client_ephemeral_data_keys.inner_key_1
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cdo1 = client_persistent_data_keys.outer_key_1 << client_ephemeral_data_keys.outer_key_1
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cdo2 = client_persistent_data_keys.outer_key_2 << client_ephemeral_data_keys.outer_key_2
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cdo1_cdo2 = cdo1 << cdo2
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ceda = client_ephemeral_data_keys.alpha_key
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cpda = client_persistent_data_keys.alpha_key
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meda = mutual_ephemeral_data_keys.alpha_key
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alphabet_phase3 = (
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(alphabet_phase2 << ((~cdi1 << mdi2) < (mdo3 << cdo1_cdo2))) ^
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(
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(
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((ceda ^ cpda ^ meda) < (mdo1 << cdo1_cdo2)) << ((mdi1 < (mdo2 << cdo1_cdo2)) << (mdi2 < (mdo3 << cdo1_cdo2)))
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)
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)
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)
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return alphabet_phase3
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def transmit_medium(
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medium_phase2: DarcKey,
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client_persistent_medium_keys: ClientPersistentMediumKeys,
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client_ephemeral_medium_keys: ClientEphemeralMediumKeys,
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mutual_persistent_medium_keys: MutualPersistentMediumKeys,
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mutual_ephemeral_medium_keys: MutualEphemeralMediumKeys
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):
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#mpmi2 = mutual_persistent_medium_keys.inner_key_2
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mmi2 = mutual_persistent_medium_keys.inner_key_2 << mutual_ephemeral_medium_keys.inner_key_2
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mmi1 = mutual_persistent_medium_keys.inner_key_1 << mutual_ephemeral_medium_keys.inner_key_1
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mmo1 = mutual_persistent_medium_keys.outer_key_1 << mutual_ephemeral_medium_keys.outer_key_1
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mmo2 = mutual_persistent_medium_keys.outer_key_2 << mutual_ephemeral_medium_keys.outer_key_2
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mmo3 = mutual_persistent_medium_keys.outer_key_3 << mutual_ephemeral_medium_keys.outer_key_3
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cmi1 = client_persistent_medium_keys.inner_key_1 << client_ephemeral_medium_keys.inner_key_1
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cmo1 = client_persistent_medium_keys.outer_key_1 << client_ephemeral_medium_keys.outer_key_1
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cmo2 = client_persistent_medium_keys.outer_key_2 << client_ephemeral_medium_keys.outer_key_2
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cmo1_cmo2 = cmo1 << cmo2
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cpma = client_persistent_medium_keys.alpha_key
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cema = client_ephemeral_medium_keys.alpha_key
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mema = mutual_ephemeral_medium_keys.alpha_key
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medium_phase3 = (
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((medium_phase2 < ~cmo1_cmo2) << ((~cmi1 << mmi2) < mmo3)) ^
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(((cpma ^ cema ^ mema) < mmo1) << ((mmi1 < mmo2) << (mmi2 < mmo3)))
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) < cmo1_cmo2
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return medium_phase3
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def darc_phase3(
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alphabet_phase2: SubstitutionKey,
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medium_phase2: SubstitutionKey,
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client_keys: ClientKeys,
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mutual_keys: MutualKeys
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):
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alphabet_phase3 = transmit_alphabet(
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alphabet_phase2,
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client_keys.persistent.data,
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client_keys.ephemeral.data,
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mutual_keys.persistent.data,
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mutual_keys.ephemeral.data
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)
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medium_phase3 = transmit_medium(
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medium_phase2,
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client_keys.persistent.medium,
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client_keys.ephemeral.medium,
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mutual_keys.persistent.medium,
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mutual_keys.ephemeral.medium
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)
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return alphabet_phase3, medium_phase3
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def merge_message(
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alphabet_phase3: SubstitutionKey,
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medium_phase3: SubstitutionKey,
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client_keys: ClientKeys,
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mutual_keys: MutualKeys,
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message: list[int]
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):
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height = len(alphabet_phase3.matrix)
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width = len(alphabet_phase3.matrix[0])
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msg_len = len(message)
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eof_msg_mask = Mask.init_matrix(width, height, msg_len)
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padded_input_sequence = OuterKey.init_matrix(height)
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padded_input_sequence.matrix = [message + padded_input_sequence.matrix[0][msg_len:]]
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cdo1 = client_keys.persistent.data.outer_key_1 << client_keys.ephemeral.data.outer_key_1
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cdo2 = client_keys.persistent.data.outer_key_2 << client_keys.ephemeral.data.outer_key_2
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mmi3 = mutual_keys.persistent.medium.inner_key_3 << mutual_keys.ephemeral.medium.inner_key_3
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mmi4 = mutual_keys.persistent.medium.inner_key_4 << mutual_keys.ephemeral.medium.inner_key_4
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mmo4 = mutual_keys.persistent.medium.outer_key_4 << mutual_keys.ephemeral.medium.outer_key_4
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mmo5 = mutual_keys.persistent.medium.outer_key_5 << mutual_keys.ephemeral.medium.outer_key_5
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mmo6 = mutual_keys.persistent.medium.outer_key_6 << mutual_keys.ephemeral.medium.outer_key_6
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cmo1 = client_keys.persistent.medium.outer_key_1 << client_keys.ephemeral.medium.outer_key_1
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cmo2 = client_keys.persistent.medium.outer_key_2 << client_keys.ephemeral.medium.outer_key_2
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cmo1_cmo2 = cmo1 << cmo2
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cdo1_cdo2 = cdo1 << cdo2
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nmmo6_nmmo4 = ~(mmo4 << mmo6)
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darc_message = ((
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(
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(medium_phase3 < ~cmo1_cmo2) ^
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((((alphabet_phase3 < ~cdo1_cdo2) < padded_input_sequence) ^ eof_msg_mask) << (
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mmi3 < nmmo6_nmmo4))
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)
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) << (mmi4 < (mmo5 << nmmo6_nmmo4))) < mmo4
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return darc_message
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