refactor var names

src/client_darc.py

@@ -93,7 +93,7 @@ def transmit_alphabet(
         mutual_persistent_data_keys: MutualPersistentDataKeys,
         mutual_ephemeral_data_keys: MutualEphemeralDataKeys
 ):
-    mdpi2 = mutual_persistent_data_keys.inner_key_2
+    mpdi2 = mutual_persistent_data_keys.inner_key_2
     mdi1 = mutual_persistent_data_keys.inner_key_1 << mutual_ephemeral_data_keys.inner_key_1
     mdo1 = mutual_persistent_data_keys.outer_key_1 << mutual_ephemeral_data_keys.outer_key_1
     mdo2 = mutual_persistent_data_keys.outer_key_2 << mutual_ephemeral_data_keys.outer_key_2
@@ -110,16 +110,10 @@ def transmit_alphabet(
     meda = mutual_ephemeral_data_keys.alpha_key
 
     alphabet_phase3 = (
-            (alphabet_phase2 << ((~cdi1 << mdpi2) < (mdo3 << cdo1_cdo2))) ^
-            ((((ceda ^ cpda ^ meda) < mdo1) << ((mdi1 < mdo2) << (mdpi2 < mdo3))) < cdo1_cdo2)
-    )
-
-
-    alphabet_phase3 = (
-            (alphabet_phase2 << ((~cdi1 << mdpi2) < (mdo3 << cdo1_cdo2))) ^
+            (alphabet_phase2 << ((~cdi1 << mpdi2) < (mdo3 << cdo1_cdo2))) ^
             (
                     (
-                            ((ceda ^ cpda ^ meda) < (mdo1 << cdo1_cdo2)) << ((mdi1 < (mdo2 << cdo1_cdo2)) << (mdpi2 < (mdo3 << cdo1_cdo2)))
+                            ((ceda ^ cpda ^ meda) < (mdo1 << cdo1_cdo2)) << ((mdi1 < (mdo2 << cdo1_cdo2)) << (mpdi2 < (mdo3 << cdo1_cdo2)))
                     )
             )
     )
@@ -133,7 +127,7 @@ def transmit_medium(
         mutual_persistent_medium_keys: MutualPersistentMediumKeys,
         mutual_ephemeral_medium_keys: MutualEphemeralMediumKeys
 ):
-    mmpi1 = mutual_persistent_medium_keys.inner_key_2
+    mpmi2 = mutual_persistent_medium_keys.inner_key_2
     mmi1 = mutual_persistent_medium_keys.inner_key_1 << mutual_ephemeral_medium_keys.inner_key_1
     mmo1 = mutual_persistent_medium_keys.outer_key_1 << mutual_ephemeral_medium_keys.outer_key_1
     mmo2 = mutual_persistent_medium_keys.outer_key_2 << mutual_ephemeral_medium_keys.outer_key_2
@@ -150,8 +144,8 @@ def transmit_medium(
     mema = mutual_ephemeral_medium_keys.alpha_key
 
     medium_phase3 = (
-                            ((medium_phase2 < ~cmo1_cmo2) << ((~cmi1 << mmpi1) < mmo3)) ^
-                            (((cpma ^ cema ^ mema) < mmo1) << ((mmi1 < mmo2) << (mmpi1 < mmo3)))
+                            ((medium_phase2 < ~cmo1_cmo2) << ((~cmi1 << mpmi2) < mmo3)) ^
+                            (((cpma ^ cema ^ mema) < mmo1) << ((mmi1 < mmo2) << (mpmi2 < mmo3)))
                     ) < cmo1_cmo2
 
     return medium_phase3
@@ -185,19 +179,16 @@ def merge_message(
         medium_phase3: AlphabetKey,
         client_keys: ClientKeys,
         mutual_keys: MutualKeys,
-        input_sequence: list[int]
+        message: list[int]
 ):
     height = len(alphabet_phase3.matrix)
     width = len(alphabet_phase3.matrix[0])
-    msg_len = len(input_sequence)
+    msg_len = len(message)
 
     eof_msg_mask = Mask.init_matrix(width, height, msg_len)
 
-    if msg_len < height:
-        padded_input_sequence = OuterKey.init_matrix(height)
-        padded_input_sequence.matrix = [input_sequence + padded_input_sequence.matrix[0][msg_len:]]
-    else:
-        padded_input_sequence = OuterKey(matrix=[input_sequence])
+    padded_input_sequence = OuterKey.init_matrix(height)
+    padded_input_sequence.matrix = [message + padded_input_sequence.matrix[0][msg_len:]]
 
     cdo1 = client_keys.persistent.data.outer_key_1 << client_keys.ephemeral.data.outer_key_1
     cdo2 = client_keys.persistent.data.outer_key_2 << client_keys.ephemeral.data.outer_key_2

src/server_darc.py

@@ -40,12 +40,12 @@ def translate_data(
 
     spda = server_persistent_data_keys.alpha_key
     seda = server_ephemeral_data_keys.alpha_key
-    alpha_phase1 = (
+    alphabet_phase1 = (
             ((alphabet < sdo1) << (sdi1 < mdo3)) ^
             (((spda ^ seda) < mdo1) << (mdi1 < mdo2))
     )
 
-    return alpha_phase1
+    return alphabet_phase1
 
 
 def translate_medium(
@@ -61,8 +61,8 @@ def translate_medium(
     spma = server_persistent_medium_keys.alpha_key
     sema = server_ephemeral_medium_keys.alpha_key
 
-    operand = medium ^ (((spma ^ sema) < mmo1) << (mmi1 < mmo2))
-    return operand
+    medium_phase1 = medium ^ (((spma ^ sema) < mmo1) << (mmi1 < mmo2))
+    return medium_phase1
 
 
 def darc_phase_4(alphabet: AlphabetKey, darc_message: AlphabetKey, server_keys: ServerKeys, mutual_keys: MutualKeys):
@@ -105,11 +105,11 @@ def phase4_translate_alphabet(
     mpda = mutual_persistent_data_keys.alpha_key
     meda = mutual_ephemeral_data_keys.alpha_key
 
-    translated_alpha = (
+    translated_alphabet = (
             ((alphabet < sdo1) << ((sdi1 << mpdi2) < mdo3)) ^
             (((spda ^ seda ^ mpda ^ meda) < mdo1) << ((mdi1 < mdo2) << (mpdi2 < mdo3)))
     )
-    return translated_alpha
+    return translated_alphabet
 
 
 def phase4_unwrap_medium(
@@ -137,16 +137,16 @@ def phase4_unwrap_medium(
     mpma = mutual_persistent_medium_keys.alpha_key
     mema = mutual_ephemeral_medium_keys.alpha_key
 
-    medium_unwrapped = (
+    unwrapped_medium = (
                                ((darc_message < ~mmo4) << ~(mmi4 < (mmo5 << nmmo6_nmmo4))) ^
                                (((spma ^ sema ^ mpma ^ mema) < mmo1) << ((mmi1 < mmo2) << (mpmi2 < mmo3)))
                        ) << (~mmi3 < nmmo6_nmmo4)
-    return medium_unwrapped
+    return unwrapped_medium
 
 
-def resolve_message(translated_alphabet: AlphabetKey, translated_messasge: AlphabetKey) -> list[int]:
+def resolve_message(translated_alphabet: AlphabetKey, unwrapped_medium: AlphabetKey) -> list[int]:
     alphabet_map = {str(key): idx for idx, key in enumerate(translated_alphabet.matrix)}
-    encoded_message = [str(alpha) for alpha in translated_messasge.matrix]
+    encoded_message = [str(alpha) for alpha in unwrapped_medium.matrix]
 
     message = []
     for alpha in encoded_message: