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-rw-r--r--python/constant.py32
-rw-r--r--python/lilliput.py108
-rw-r--r--python/lilliput_ae_1.py284
-rw-r--r--python/lilliput_ae_2.py277
-rw-r--r--python/lilliput_tbc.py275
-rw-r--r--python/multiplications.py175
-rw-r--r--python/parameters_i_128.py6
-rw-r--r--python/parameters_i_192.py6
-rw-r--r--python/parameters_i_256.py6
-rw-r--r--python/parameters_ii_128.py6
-rw-r--r--python/parameters_ii_192.py6
-rw-r--r--python/parameters_ii_256.py6
12 files changed, 1187 insertions, 0 deletions
diff --git a/python/constant.py b/python/constant.py
new file mode 100644
index 0000000..1bc208c
--- /dev/null
+++ b/python/constant.py
@@ -0,0 +1,32 @@
+Sbox = [32, 0, 178, 133, 59, 53, 166, 164,
+ 48, 228, 106, 44, 255, 89, 226, 14,
+ 248, 30, 122, 128, 21, 189, 62, 177,
+ 232, 243, 162, 194, 218, 81, 42, 16,
+ 33, 1, 35, 120, 92, 36, 39, 181,
+ 55, 199, 43, 31, 174, 10, 119, 95,
+ 111, 9, 157, 129, 4, 90, 41, 220,
+ 57, 156, 5, 87, 151, 116, 121, 23,
+ 68, 198, 230, 233, 221, 65, 242, 138,
+ 84, 202, 110, 74, 225, 173, 182, 136,
+ 28, 152, 126, 206, 99, 73, 58, 93,
+ 12, 239, 246, 52, 86, 37, 46, 214,
+ 103, 117, 85, 118, 184, 210, 97, 217,
+ 113, 139, 205, 11, 114, 108, 49, 75,
+ 105, 253, 123, 109, 96, 60, 47, 98,
+ 63, 34, 115, 19, 201, 130, 127, 83,
+ 50, 18, 160, 124, 2, 135, 132, 134,
+ 147, 78, 104, 70, 141, 195, 219, 236,
+ 155, 183, 137, 146, 167, 190, 61, 216,
+ 234, 80, 145, 241, 51, 56, 224, 169,
+ 163, 131, 161, 27, 207, 6, 149, 7,
+ 158, 237, 185, 245, 76, 192, 244, 45,
+ 22, 250, 180, 3, 38, 179, 144, 79,
+ 171, 101, 252, 254, 20, 247, 227, 148,
+ 238, 172, 140, 26, 222, 203, 40, 64,
+ 125, 200, 196, 72, 107, 223, 165, 82,
+ 229, 251, 215, 100, 249, 240, 211, 94,
+ 102, 150, 143, 29, 69, 54, 204, 197,
+ 77, 159, 191, 15, 209, 8, 235, 67,
+ 66, 25, 231, 153, 168, 142, 88, 193,
+ 154, 212, 24, 71, 170, 175, 188, 91,
+ 213, 17, 208, 176, 112, 187, 13, 186]
diff --git a/python/lilliput.py b/python/lilliput.py
new file mode 100644
index 0000000..e090a10
--- /dev/null
+++ b/python/lilliput.py
@@ -0,0 +1,108 @@
+import lilliput_ae_1
+import lilliput_ae_2
+
+import parameters_i_128 as i_128
+import parameters_i_192 as i_192
+import parameters_i_256 as i_256
+import parameters_ii_128 as ii_128
+import parameters_ii_192 as ii_192
+import parameters_ii_256 as ii_256
+
+BLOCK_BYTES = 16
+N_BYTES = 15
+
+def GetParameters(mode = 1, length = 128) :
+ if(mode == 1 and length == 128) :
+ return (i_128.KEY_BITS, i_128.TWEAK_BITS, i_128.ROUNDS)
+
+ if(mode == 1 and length == 192) :
+ return (i_192.KEY_BITS, i_192.TWEAK_BITS, i_192.ROUNDS)
+
+ if(mode == 1 and length == 256) :
+ return (i_256.KEY_BITS, i_256.TWEAK_BITS, i_256.ROUNDS)
+
+ if(mode == 2 and length == 128) :
+ return (ii_128.KEY_BITS, ii_128.TWEAK_BITS, ii_128.ROUNDS)
+
+ if(mode == 2 and length == 192) :
+ return (ii_192.KEY_BITS, ii_192.TWEAK_BITS, ii_192.ROUNDS)
+
+ if(mode == 2 and length == 256) :
+ return (ii_256.KEY_BITS, ii_256.TWEAK_BITS, ii_256.ROUNDS)
+
+def ArrayToBlockbytesMatrix(array) :
+ length = len(array)
+ pad = 0
+ if(length % BLOCK_BYTES == 0) :
+ number_blocks = int(length / BLOCK_BYTES)
+ else :
+ number_blocks = int((length + (BLOCK_BYTES - (length % BLOCK_BYTES))) / BLOCK_BYTES)
+ pad = 1
+
+ matrix = [[0] * BLOCK_BYTES for block in range(0, number_blocks - pad)]
+ if(pad == 1) :
+ matrix.append([0] * (length % BLOCK_BYTES))
+
+ for byte in range(0, length) :
+ matrix[int(byte / BLOCK_BYTES)][byte % BLOCK_BYTES] = array[byte]
+
+ return matrix
+
+############################################
+
+def mainEnc(mode = 1, length = 128) :
+
+ (key_bits, tweak_bits, rounds) = GetParameters(mode, length)
+
+
+ A = [byte for byte in range(0, 16)]
+ M = [byte for byte in range(0, 17)]
+ N = [0 for byte in range(0, N_BYTES)]
+ key = [byte for byte in range(0, int(key_bits/8))]
+
+ A_BITS = 8 * len(A)
+ M_BITS = 8 * len(M)
+
+ A = ArrayToBlockbytesMatrix(A)
+ M = ArrayToBlockbytesMatrix(M)
+
+
+ if(mode == 1) :
+ (C, tag) = lilliput_ae_1.OCB3Enc(A, M, N, A_BITS, M_BITS, key, key_bits, tweak_bits, rounds)
+ if(mode == 2) :
+ (C, tag) = lilliput_ae_2.SCT2Enc(A, M, N, A_BITS, M_BITS, key, key_bits, tweak_bits, rounds)
+ for block in range(0,len(C)) :
+ for byte in C[block] :
+ print("%02x "%(byte), end="")
+ for byte in tag :
+ print("%02x "%(byte), end="")
+ print()
+
+
+def mainDec(mode = 1, length = 128) :
+
+ (key_bits, tweak_bits, rounds) = GetParameters(mode, length)
+
+
+ A = [byte for byte in range(0, 16)]
+ C = [byte for byte in range(0, 16)]
+ N = [0 for byte in range(0, N_BYTES)]
+ key = [byte for byte in range(0, int(key_bits/8))]
+ tag = []
+
+
+ M_BITS = 8 * len(C)
+ A_BITS = 8 * len(A)
+
+ A = ArrayToBlockbytesMatrix(A)
+ C = ArrayToBlockbytesMatrix(C)
+
+
+ if(mode == 1) :
+ M = lilliput_ae_1.OCB3Dec(A, C, N, tag, A_BITS, M_BITS, key, key_bits, tweak_bits, rounds)
+ if(mode == 2) :
+ M = lilliput_ae_2.SCT2Dec(A, C, N, tag, A_BITS, M_BITS, key, key_bits, tweak_bits, rounds)
+ for block in range(0,len(M)) :
+ for byte in M[block] :
+ print("%02x "%(byte), end="")
+ print()
diff --git a/python/lilliput_ae_1.py b/python/lilliput_ae_1.py
new file mode 100644
index 0000000..4884518
--- /dev/null
+++ b/python/lilliput_ae_1.py
@@ -0,0 +1,284 @@
+"""
+ OCB 3 for lilliput ae i
+"""
+
+import lilliput_tbc as ltbc
+
+BLOCK_BITS = 128
+KEY_BITS = 128
+TWEAK_BITS = 192
+TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+LANE_BITS = 64
+LANES = int((TWEAKEY_BITS) / LANE_BITS)
+ROUNDS = 32
+
+BLOCK_BYTES = int(BLOCK_BITS / 8)
+KEY_BYTES = int(KEY_BITS / 8)
+TWEAK_BYTES = int(TWEAK_BITS / 8)
+TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+
+A_BITS = BLOCK_BITS
+M_BITS = BLOCK_BITS
+N_BITS = 120
+N_BYTES = int(N_BITS / 8)
+
+def InitParameters(key_bits = 128, tweak_bits = 192, rounds = 32) :
+ global KEY_BITS
+ global KEY_BYTES
+ global TWEAK_BITS
+ global TWEAK_BYTES
+ global TWEAKEY_BITS
+ global TWEAKEY_BYTES
+ global LANES
+ global ROUNDS
+
+ KEY_BITS = key_bits
+ TWEAK_BITS = tweak_bits
+ TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+ LANES = int((TWEAKEY_BITS) / LANE_BITS)
+ ROUNDS = rounds
+ KEY_BYTES = int(KEY_BITS / 8)
+ TWEAK_BYTES = int(TWEAK_BITS / 8)
+ TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+
+
+###############################################################################
+
+def XorState(state1, state2) :
+ state_output = [state1[byte] ^ state2[byte] for byte in range(0, len(state1))]
+ return state_output
+
+
+def Padding10LSB(array, number_bits) :
+ shifted = 0
+ for byte in range(0, len(array)) :
+ shifted |= (array[byte] << (8 * byte))
+ shifted = (shifted << (BLOCK_BITS - number_bits)) & 0xffffffffffffffffffffffffffffffff
+
+ padded = shifted | (0x1 << (BLOCK_BITS - number_bits - 1))
+
+ array_padded = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ array_padded[byte] = (padded & (0xff << (8 * byte))) >> (8 * byte)
+
+ return array_padded
+
+
+def LowPart(array, number_bits) :
+ shifted = 0
+ for byte in range(0, len(array)) :
+ shifted |= (array[byte] << (8 * byte))
+
+ mask = 0
+ for bit in range(0, number_bits) :
+ mask |= (0x1 << bit)
+
+ lower_part = shifted & mask
+
+ will_padd = 0
+ if (number_bits % 8) != 0 :
+ will_padd = 1
+
+ lower_part_byte = [0 for byte in range(0, int(number_bits / 8) + will_padd)]
+ for byte in range(0, int(number_bits / 8) + will_padd) :
+ lower_part_byte[byte] = lower_part & 0xff
+ lower_part = lower_part >> 8
+
+ return lower_part_byte
+
+###############################################################################
+
+def TweakAssociatedData(i, padded = 0) :
+ tweak = [0 for byte in range(0, TWEAK_BYTES)]
+
+ mask = 0xff
+ for byte in range(0, TWEAK_BYTES - 1) :
+ tweak[byte] = (i & mask) >> (byte * 8)
+ mask = mask << 8
+
+ mask = (0xf << (8 * (TWEAK_BYTES - 1)))
+ tweak[TWEAK_BYTES - 1] = (i & mask) >> ((TWEAK_BYTES - 1) * 8)
+ if padded == 0 :
+ tweak[TWEAK_BYTES - 1] |= 0x20
+ else :
+ tweak[TWEAK_BYTES - 1] |= 0x60
+ return tweak
+
+
+def BuildAuth(A, key) :
+ Auth = [0 for byte in range(0, BLOCK_BYTES)]
+ l_a = int(A_BITS / BLOCK_BITS)
+ if int(A_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ for i in range(0, l_a) :
+ tweak = TweakAssociatedData(i, padded = 0)
+ enc = ltbc.LilliputTBCEnc(tweak, key, A[i])
+ Auth = XorState(Auth, enc)
+
+ if (A_BITS % BLOCK_BITS) == 0 :
+ return Auth
+
+ tweak = TweakAssociatedData(l_a, padded = 1)
+ ad_padded = Padding10LSB(A[l_a], (A_BITS % BLOCK_BITS))
+ enc = ltbc.LilliputTBCEnc(tweak, key, ad_padded)
+ Auth = XorState(Auth, enc)
+
+ return Auth
+
+################################################################################
+
+def TweakMessage(N, j, null = 0, padded = 0, final_padded = 0) :
+ tweak = [0 for byte in range(0, TWEAK_BYTES)]
+ for byte in range(N_BYTES - 1, -1, -1) :
+ tweak[byte + (TWEAK_BYTES - N_BYTES)] |= (N[byte] & 0xf0) >> 4
+ tweak[byte + (TWEAK_BYTES - N_BYTES - 1)] |= (N[byte] & 0x0f) << 4
+
+ tweak[TWEAK_BYTES - N_BYTES - 1] |= ((j >> 64) & 0xf)
+ for byte in range(TWEAK_BYTES - N_BYTES - 2, -1, -1) :
+ tweak[byte] = (j >> (8 * byte)) & 0xff
+
+ if null == 1 :
+ tweak[TWEAK_BYTES - 1] |= 0x10
+ if padded == 1 :
+ tweak[TWEAK_BYTES - 1] |= 0x40
+ if final_padded == 1 :
+ tweak[TWEAK_BYTES - 1] |= 0x50
+
+ return tweak
+
+
+def TreatMessageEnc(M, N, key) :
+ checksum = [0 for byte in range(0, BLOCK_BYTES)]
+
+ l = int(M_BITS / BLOCK_BITS)
+ if int(M_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ C = [[0 for byte in range(0, BLOCK_BYTES)] for j in range(0, l + will_padd)]
+
+ for j in range(0, l) :
+ checksum = XorState(checksum, M[j])
+ tweak = TweakMessage(N, j, padded = 0)
+ C[j] = ltbc.LilliputTBCEnc(tweak, key, M[j])
+
+ if will_padd == 0 :
+ tweak = TweakMessage(N, l - 1, null = 1)
+ Final = ltbc.LilliputTBCEnc(tweak, key, checksum)
+
+ else :
+ m_padded = Padding10LSB(M[l], M_BITS % BLOCK_BITS)
+ checksum = XorState(checksum, m_padded)
+ tweak = TweakMessage(N, l, padded = 1)
+ pad = ltbc.LilliputTBCEnc(tweak, key, [0 for byte in range(0, BLOCK_BYTES)])
+ lower_part = LowPart(pad, M_BITS % BLOCK_BITS)
+ C[l] = XorState(M[l], lower_part)
+ tweak_final = TweakMessage(N, l, final_padded = 1)
+ Final = ltbc.LilliputTBCEnc(tweak_final, key, checksum)
+
+ return (Final, C)
+
+
+def TreatMessageDec(C, N, key) :
+ checksum = [0 for byte in range(0, BLOCK_BYTES)]
+
+ l = int(M_BITS / BLOCK_BITS)
+ if int(M_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ M = [[0 for byte in range(0, BLOCK_BYTES)] for j in range(0, l + will_padd)]
+
+ for j in range(0, l) :
+ tweak = TweakMessage(N, j, padded = 0)
+ M[j] = ltbc.LilliputTBCDec(tweak, key, C[j])
+ checksum = XorState(checksum, M[j])
+
+
+ if will_padd == 0 :
+ tweak = TweakMessage(N, l - 1, null = 1)
+ Final = ltbc.LilliputTBCEnc(tweak, key, checksum)
+
+ else :
+ tweak = TweakMessage(N, l, padded = 1)
+ pad = ltbc.LilliputTBCEnc(tweak, key, [0 for byte in range(0, BLOCK_BYTES)])
+ lower_part = LowPart(pad, M_BITS % BLOCK_BITS)
+ M[l] = XorState(C[l], lower_part)
+ m_padded = Padding10LSB(M[l], M_BITS % BLOCK_BITS)
+ checksum = XorState(checksum, m_padded)
+ tweak_final = TweakMessage(N, l, final_padded = 1)
+ Final = ltbc.LilliputTBCEnc(tweak_final, key, checksum)
+
+ return (Final, M)
+
+
+
+################################################################################
+def OCB3Enc(A, M, N, associated_data_length_bit, message_length_bit, key, key_bits, tweak_bits, rounds) :
+ InitParameters(key_bits, tweak_bits, rounds)
+
+ global A_BITS
+ global M_BITS
+
+ A_BITS = associated_data_length_bit
+ M_BITS = message_length_bit
+
+ ltbc.KEY_BITS = KEY_BITS
+ ltbc.ROUNDS = ROUNDS
+ ltbc.TWEAK_BITS = TWEAK_BITS
+ ltbc.LANES = LANES
+
+ ltbc.TWEAKEY_BITS = TWEAKEY_BITS
+ ltbc.KEY_BYTES = KEY_BYTES
+ ltbc.TWEAK_BYTES = TWEAK_BYTES
+ ltbc.TWEAKEY_BYTES = TWEAKEY_BYTES
+
+ ltbc.TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ ltbc.RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ ltbc.States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+
+ Auth = BuildAuth(A, key)
+ (Final, C) = TreatMessageEnc(M, N, key)
+ tag = XorState(Auth, Final)
+
+ return (C, tag)
+
+
+def OCB3Dec(A, C, N, tag, associated_data_length_bit, message_length_bit, key, key_bits, tweak_bits, rounds) :
+ InitParameters(key_bits, tweak_bits, rounds)
+
+ global A_BITS
+ global M_BITS
+
+ A_BITS = associated_data_length_bit
+ M_BITS = message_length_bit
+
+ ltbc.KEY_BITS = KEY_BITS
+ ltbc.ROUNDS = ROUNDS
+ ltbc.TWEAK_BITS = TWEAK_BITS
+ ltbc.LANES = LANES
+
+ ltbc.TWEAKEY_BITS = TWEAKEY_BITS
+ ltbc.KEY_BYTES = KEY_BYTES
+ ltbc.TWEAK_BYTES = TWEAK_BYTES
+ ltbc.TWEAKEY_BYTES = TWEAKEY_BYTES
+
+ ltbc.TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ ltbc.RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ ltbc.States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+ Auth = BuildAuth(A, key)
+ (Final, M) = TreatMessageDec(C, N, key)
+ tag2 = XorState(Auth, Final)
+
+ print(M)
+ print(tag2)
+
+ if(tag == tag2) :
+ return M
diff --git a/python/lilliput_ae_2.py b/python/lilliput_ae_2.py
new file mode 100644
index 0000000..40ee485
--- /dev/null
+++ b/python/lilliput_ae_2.py
@@ -0,0 +1,277 @@
+"""
+ SCT 2 for lilliput ae 2
+"""
+
+import lilliput_tbc as ltbc
+
+BLOCK_BITS = 128
+KEY_BITS = 128
+TWEAK_BITS = 128
+TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+LANE_BITS = 64
+LANES = int((TWEAKEY_BITS) / LANE_BITS)
+ROUNDS = 32
+
+BLOCK_BYTES = int(BLOCK_BITS / 8)
+KEY_BYTES = int(KEY_BITS / 8)
+TWEAK_BYTES = int(TWEAK_BITS / 8)
+TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+
+A_BITS = BLOCK_BITS
+M_BITS = BLOCK_BITS
+N_BITS = 120
+N_BYTES = int(N_BITS / 8)
+
+
+def InitParameters(key_bits = 128, tweak_bits = 128, rounds = 32) :
+ global KEY_BITS
+ global KEY_BYTES
+ global TWEAK_BITS
+ global TWEAK_BYTES
+ global TWEAKEY_BITS
+ global TWEAKEY_BYTES
+ global LANES
+ global ROUNDS
+
+ KEY_BITS = key_bits
+ TWEAK_BITS = tweak_bits
+ TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+ LANES = int((TWEAKEY_BITS) / LANE_BITS)
+ ROUNDS = rounds
+ KEY_BYTES = int(KEY_BITS / 8)
+ TWEAK_BYTES = int(TWEAK_BITS / 8)
+ TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+
+
+###############################################################################
+
+def XorState(state1, state2) :
+ state_output = [state1[byte] ^ state2[byte] for byte in range(0, len(state1))]
+ return state_output
+
+def Padding10LSB(array, number_bits) :
+ shifted = 0
+ for byte in range(0, len(array)) :
+ shifted |= (array[byte] << (8 * byte))
+ shifted = (shifted << (BLOCK_BITS - number_bits)) & 0xffffffffffffffffffffffffffffffff
+
+ padded = shifted | (0x1 << (BLOCK_BITS - number_bits - 1))
+
+ array_padded = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ array_padded[byte] = (padded & (0xff << (8 * byte))) >> (8 * byte)
+
+ return array_padded
+
+
+def LowPart(array, number_bits) :
+ shifted = 0
+ for byte in range(0, len(array)) :
+ shifted |= (array[byte] << (8 * byte))
+
+ mask = 0
+ for bit in range(0, number_bits) :
+ mask |= (0x1 << bit)
+
+ lower_part = shifted & mask
+
+ will_padd = 0
+ if (number_bits % 8) != 0 :
+ will_padd = 1
+
+ lower_part_byte = [0 for byte in range(0, int(number_bits / 8) + will_padd)]
+ for byte in range(0, int(number_bits / 8) + will_padd) :
+ lower_part_byte[byte] = lower_part & 0xff
+ lower_part = lower_part >> 8
+
+ return lower_part_byte
+
+###############################################################################
+
+def TweakAssociatedData(i, padded = 0) :
+ tweak = [0 for byte in range(0, TWEAK_BYTES)]
+
+ mask = 0xff
+ for byte in range(0, TWEAK_BYTES - 1) :
+ tweak[byte] = (i & mask) >> (byte * 8)
+ mask = mask << 8
+
+ mask = (0xf << (8 * (TWEAK_BYTES - 1)))
+ tweak[TWEAK_BYTES - 1] = (i & mask) >> ((TWEAK_BYTES - 1) * 8)
+ if padded == 0 :
+ tweak[TWEAK_BYTES - 1] |= 0x20
+ else :
+ tweak[TWEAK_BYTES - 1] |= 0x60
+ return tweak
+
+
+def BuildAuth(A, key) :
+ Auth = [0 for byte in range(0, BLOCK_BYTES)]
+ l_a = int(A_BITS / BLOCK_BITS)
+ if int(A_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ for i in range(0, l_a) :
+ tweak = TweakAssociatedData(i, padded = 0)
+ enc = ltbc.LilliputTBCEnc(tweak, key, A[i])
+ Auth = XorState(Auth, enc)
+
+ if (A_BITS % BLOCK_BITS) == 0 :
+ return Auth
+
+ tweak = TweakAssociatedData(l_a, padded = 1)
+ ad_padded = Padding10LSB(A[l_a], (A_BITS % BLOCK_BITS))
+ enc = ltbc.LilliputTBCEnc(tweak, key, ad_padded)
+ Auth = XorState(Auth, enc)
+
+ return Auth
+
+################################################################################
+
+def TweakTag(j, padded = 0) :
+ tweak = [0 for byte in range(0, TWEAK_BYTES)]
+
+ tweak[TWEAK_BYTES - 1] |= ((j >> 120) & 0xf)
+ for byte in range(TWEAK_BYTES - 2, -1, -1) :
+ tweak[byte] = (j >> (8 * byte)) & 0xff
+
+ if padded == 1 :
+ tweak[TWEAK_BYTES - 1] |= 0x40
+
+ return tweak
+
+def TweakTagEnd(N) :
+ tweak = [0 for byte in range(0, TWEAK_BYTES)]
+
+ for byte in range(0, TWEAK_BYTES - 1) :
+ tweak[byte] = N[byte]
+ tweak[TWEAK_BYTES - 1] = 0x10
+
+ return tweak
+
+
+def AddTagJ(tag, j) :
+ array_j = [0 for byte in range(0, TWEAK_BYTES)]
+ for byte in range(0, TWEAK_BYTES) :
+ array_j[byte] = (j >> (byte * 8))
+
+ xorr = XorState(tag, array_j)
+
+ xorr[TWEAK_BYTES - 1] |= 0x80
+
+ return xorr
+
+
+def MesssageAuthTag(M, N, Auth, key) :
+ l = int(M_BITS / BLOCK_BITS)
+ if int(M_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ tag = list(Auth)
+
+ for j in range(0, l) :
+ tweak = TweakTag(j, padded = 0)
+ encryption = ltbc.LilliputTBCEnc(tweak, key, M[j])
+ tag = XorState(tag, encryption)
+
+ if will_padd == 1 :
+ tweak = TweakTag(l, padded = 1)
+ m_padded = Padding10LSB(M[l], M_BITS % BLOCK_BITS)
+ encryption = ltbc.LilliputTBCEnc(tweak, key, m_padded)
+ tag = XorState(tag, encryption)
+
+ tweak = TweakTagEnd(N)
+ encryption = ltbc.LilliputTBCEnc(tweak, key, tag)
+ tag = encryption
+
+ return tag
+
+
+def MessageEncryption(M, N, tag, key) :
+ l = int(M_BITS / BLOCK_BITS)
+ if int(M_BITS % BLOCK_BITS) > 0 :
+ will_padd = 1
+ else :
+ will_padd = 0
+
+ C = [[0 for byte in range(0, 16)] for j in range(0, l + will_padd)]
+
+ for j in range(0, l) :
+ tweak = AddTagJ(tag, j)
+ padded_nounce = list(N) + [0x00]
+ encryption = ltbc.LilliputTBCEnc(tweak, key, padded_nounce)
+ C[j] = XorState(M[j], encryption)
+
+ if will_padd :
+ tweak = AddTagJ(tag, l)
+ padded_nounce = list(N) + [0x00]
+ encryption = ltbc.LilliputTBCEnc(tweak, key, padded_nounce)
+ C[l] = XorState(M[l], encryption)
+
+ return C
+
+################################################################################
+def SCT2Enc(A, M, N, associated_data_length_bit, message_length_bit, key, key_bits, tweak_bits, rounds) :
+ InitParameters(key_bits, tweak_bits, rounds)
+
+ global A_BITS
+ global M_BITS
+
+ A_BITS = associated_data_length_bit
+ M_BITS = message_length_bit
+
+ ltbc.KEY_BITS = KEY_BITS
+ ltbc.ROUNDS = ROUNDS
+ ltbc.TWEAK_BITS = TWEAK_BITS
+ ltbc.LANES = LANES
+
+ ltbc.TWEAKEY_BITS = TWEAKEY_BITS
+ ltbc.KEY_BYTES = KEY_BYTES
+ ltbc.TWEAK_BYTES = TWEAK_BYTES
+ ltbc.TWEAKEY_BYTES = TWEAKEY_BYTES
+
+ ltbc.TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ ltbc.RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ ltbc.States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+
+ Auth = BuildAuth(A, key)
+ tag = MesssageAuthTag(M, N, Auth, key)
+ C = MessageEncryption(M, N, tag, key)
+
+ return (C, tag)
+
+def SCT2Dec(A, C, N, tag, associated_data_length_bit, message_length_bit, key, key_bits, tweak_bits, rounds) :
+ InitParameters(key_bits, tweak_bits, rounds)
+
+ global A_BITS
+ global M_BITS
+
+ A_BITS = associated_data_length_bit
+ M_BITS = message_length_bit
+
+ ltbc.KEY_BITS = KEY_BITS
+ ltbc.ROUNDS = ROUNDS
+ ltbc.TWEAK_BITS = TWEAK_BITS
+ ltbc.LANES = LANES
+
+ ltbc.TWEAKEY_BITS = TWEAKEY_BITS
+ ltbc.KEY_BYTES = KEY_BYTES
+ ltbc.TWEAK_BYTES = TWEAK_BYTES
+ ltbc.TWEAKEY_BYTES = TWEAKEY_BYTES
+
+ ltbc.TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ ltbc.RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ ltbc.States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+
+ M = MessageEncryption(C, N, tag, key)
+ Auth = BuildAuth(A, key)
+ tag2 = MesssageAuthTag(M, N, Auth, key)
+
+ if(tag == tag2) :
+ return M
diff --git a/python/lilliput_tbc.py b/python/lilliput_tbc.py
new file mode 100644
index 0000000..540d956
--- /dev/null
+++ b/python/lilliput_tbc.py
@@ -0,0 +1,275 @@
+"""
+ Lilliput TBC
+"""
+import random
+import constant
+import multiplications
+
+BLOCK_BITS = 128
+KEY_BITS = 128
+TWEAK_BITS = 192
+LANE_BITS = 64
+LANE_BYTES = LANE_BITS / 8
+LANES = int((TWEAK_BITS+KEY_BITS) / LANE_BITS)
+ROUNDS = 32
+
+BLOCK_BYTES = int(BLOCK_BITS / 8)
+TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+KEY_BYTES = int(KEY_BITS / 8)
+TWEAK_BYTES = int(TWEAK_BITS / 8)
+TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+
+Sbox = constant.Sbox
+MultiplyM = multiplications.MultiplyM
+MultiplyM2 = multiplications.MultiplyM2
+MultiplyM3 = multiplications.MultiplyM3
+MultiplyMR = multiplications.MultiplyMR
+MultiplyMR2 = multiplications.MultiplyMR2
+MultiplyMR3 = multiplications.MultiplyMR3
+
+permutation = [14, 11, 12, 10, 8, 9, 13, 15, 3, 1, 4, 5, 6, 0, 2, 7]
+permutationInv = [13, 9, 14, 8, 10, 11, 12, 15, 4, 5, 3, 1, 2, 6 ,0 ,7]
+
+# Personnal global variables to check better
+TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+
+################################################################################
+
+def BuildTweakey(tweak, key) :
+
+ tweakey = [0 for byte in range(0, TWEAKEY_BYTES)]
+ for byte in range(0, TWEAK_BYTES) :
+ tweakey[byte] = tweak[byte]
+
+ for byte in range(0, KEY_BYTES) :
+ tweakey[byte + TWEAK_BYTES] = key[byte]
+
+ return tweakey
+
+#############################
+
+def RoundTweakeySchedule(tweakey) :
+
+ # Multiplication
+ lanes = [tweakey[word * 8:(word+1) * 8] for word in range(0, LANES)]
+ tweakey_multiplied = []
+ for word in range(0, LANES) :
+ if word == 0 :
+ tweakey_multiplied += list(lanes[0])
+ elif word == 1 :
+ tweakey_multiplied += MultiplyM(lanes[1])
+ elif word == 2 :
+ tweakey_multiplied += MultiplyM2(lanes[2])
+ elif word == 3 :
+ tweakey_multiplied += MultiplyM3(lanes[3])
+ elif word == 4 :
+ tweakey_multiplied += MultiplyMR(lanes[4])
+ elif word == 5 :
+ tweakey_multiplied += MultiplyMR2(lanes[5])
+ elif word == 6 :
+ tweakey_multiplied += MultiplyMR3(lanes[6])
+
+ return tweakey_multiplied ;
+
+
+def SubTweakeyExtract(tweakey, round) :
+ subtweakey = [0 for byte in range(0, 8)]
+
+ for byte in range(0, TWEAKEY_BYTES) :
+ subtweakey[byte % 8] ^= tweakey[byte]
+
+ subtweakey[0] ^= round
+
+ return subtweakey
+
+
+def TweakeyScheduleWhole(tweakey) :
+ # store main tweakey in TKs[0]
+ # and corresponding RTKs[0]
+ TKs[0] = tweakey
+ RTKs[0] = SubTweakeyExtract(TKs[0], 0)
+
+ for round in range(1, ROUNDS) :
+ TKs[round] = RoundTweakeySchedule(TKs[round - 1])
+ RTKs[round] = SubTweakeyExtract(TKs[round], round)
+
+################################################################################
+
+def NonLinearLayer(state, subtweakey) :
+
+ variables_xored = [0 for byte in range(0, 8)]
+ for byte in range(0,8) :
+ variables_xored[byte] = state[byte] ^ subtweakey[byte]
+
+ variables_sboxed = [0 for byte in range(0, 8)]
+ for byte in range(0, 8) :
+ variables_sboxed[byte] = Sbox[variables_xored[byte]]
+
+ state_output = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0,BLOCK_BYTES) :
+ state_output[byte] = state[byte]
+ for byte in range(0, 8) :
+ state_output[15 - byte] ^= variables_sboxed[byte]
+
+ return state_output
+
+
+def LinearLayer(state) :
+ state_output = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ state_output[byte] = state[byte]
+
+ for byte in range(1, 8) :
+ state_output[15] ^= state[byte]
+
+ for byte in range(9, 15) :
+ state_output[byte] ^= state[7]
+
+ return state_output
+
+
+def PermutationLayerEnc(state) :
+ state_output = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ state_output[byte] = state[permutation[byte]]
+
+ return state_output
+
+def PermutationLayerDec(state) :
+ state_output = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ state_output[byte] = state[permutationInv[byte]]
+
+ return state_output
+
+
+def OneRoundEGFNEnc(state, subtweakey, round) :
+ state_non_linear = NonLinearLayer(state, subtweakey)
+ state_linear = LinearLayer(state_non_linear)
+ state_permutation = PermutationLayerEnc(state_linear)
+
+ return state_permutation
+
+def LastRoundEGFN(state, subtweakey, round) :
+ state_non_linear = NonLinearLayer(state, subtweakey)
+ state_linear = LinearLayer(state_non_linear)
+
+ return state_linear
+
+
+def OneRoundEGFNDec(state, subtweakey, round) :
+ state_non_linear = NonLinearLayer(state, subtweakey)
+ state_linear = LinearLayer(state_non_linear)
+ state_permutation = PermutationLayerDec(state_linear)
+
+ return state_permutation
+
+
+################################################################################
+# Lilliput TBC
+
+def LilliputTBCEnc(tweak, key, message) :
+
+ global TKs
+ global RTKs
+ global states
+ TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+ tweakey = BuildTweakey(tweak, key)
+ TweakeyScheduleWhole(tweakey)
+
+ state = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ state[byte] = message[byte]
+
+ for round in range(0, ROUNDS - 1) :
+ state_output = OneRoundEGFNEnc(state, RTKs[round], round = round)
+
+ for byte in range(0, BLOCK_BYTES) :
+ state[byte] = state_output[byte]
+
+ state_output = LastRoundEGFN(state, RTKs[ROUNDS - 1], round = ROUNDS - 1)
+
+ return state_output
+
+
+def LilliputTBCDec(tweak, key, cipher) :
+
+ global TKs
+ global RTKs
+ global states
+ TKs = [[0 for byte in range(0, TWEAKEY_BYTES)] for round in range(0, ROUNDS)]
+ RTKs = [[0 for byte in range(0, 8)] for round in range(0, ROUNDS)]
+ States = [[0 for byte in range(0, BLOCK_BYTES)] for round in range(0, ROUNDS)]
+
+ tweakey = BuildTweakey(tweak, key)
+ TweakeyScheduleWhole(tweakey)
+
+ state = [0 for byte in range(0, BLOCK_BYTES)]
+ for byte in range(0, BLOCK_BYTES) :
+ state[byte] = cipher[byte]
+
+ for round in range(0, ROUNDS - 1) :
+ state_output = OneRoundEGFNDec(state, RTKs[ROUNDS - round - 1], round = round)
+
+ for byte in range(0, BLOCK_BYTES) :
+ state[byte] = state_output[byte]
+
+ state_output = LastRoundEGFN(state, RTKs[0], round = ROUNDS - 1)
+
+ return state_output
+
+################################################################################
+
+
+# def main() :
+#
+# """tweak = [random.randint(0,255) for byte in range(0, number_bytes_tweak)]
+# key = [random.randint(0,255) for byte in range(0, number_bytes_key)]
+# message = [random.randint(0,255) for byte in range(0, 16)]"""
+# #cipher = [204, 93, 118, 73, 153, 116, 241, 228, 56, 160, 234, 207, 42, 199, 19, 147] # null
+# #cipher = [104, 79, 113, 74, 255, 166, 160, 78, 195, 74, 93, 105, 73, 157, 113, 228] # order
+# #message = [188, 215, 240, 41, 132, 182, 200, 249, 156, 157, 29, 189, 13, 48, 148, 11]
+# #cipher = [245, 195, 174, 174, 35, 1, 31, 176, 201, 93, 83, 38, 103, 211, 216, 223]
+# #tweak = [168, 67, 243, 16, 129, 17, 28, 132, 223, 248, 46, 250, 144, 144, 38, 33, 125, 141, 67, 18, 42, 179, 210, 77]
+# #key = [193, 150, 198, 10, 2, 115, 145, 104, 127, 244, 35, 77, 61, 213, 249, 155]
+# global KEY_BITS
+# global TWEAK_BITS
+# global LANES
+# global ROUNDS
+# global TWEAKEY_BITS
+# global KEY_BYTES
+# global TWEAK_BYTES
+# global TWEAKEY_BYTES
+# KEY_BITS = 256
+# TWEAK_BITS = 128
+# TWEAKEY_BITS = KEY_BITS + TWEAK_BITS
+# LANES = int((TWEAKEY_BITS) / LANE_BITS)
+# ROUNDS = 42
+# KEY_BYTES = int(KEY_BITS / 8)
+# TWEAK_BYTES = int(TWEAK_BITS / 8)
+# TWEAKEY_BYTES = int(TWEAKEY_BITS / 8)
+#
+# tweak = [byte for byte in range(0, TWEAK_BYTES)]
+# key = [byte for byte in range(0, KEY_BYTES)]
+# message = [byte for byte in range(0, BLOCK_BYTES)]
+#
+#
+#
+# cipher = LilliputTBCEnc(tweak, key, message)
+# print(message)
+# print(cipher)
+# print(tweak)
+# print(key)
+# for index,byte in enumerate(cipher) :
+# print("%02x "%(cipher[15-index]), end="")
+# print()
+# #deciphered = LilliputTBCDec(tweak, key, cipher, verbose = 0)
+# #print(deciphered)
+#
+# #main()
diff --git a/python/multiplications.py b/python/multiplications.py
new file mode 100644
index 0000000..e753c68
--- /dev/null
+++ b/python/multiplications.py
@@ -0,0 +1,175 @@
+
+# Multiply by matrix M
+def MultiplyM(lane) :
+ multiplied_lane = [lane[(byte-1) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[2] ^= ((lane[6] << 2) & 0xff)
+ multiplied_lane[4] ^= ((lane[4] >> 3) & 0xff)
+ multiplied_lane[5] ^= ((lane[5] << 3) & 0xff)
+
+ return multiplied_lane
+
+def MultiplyM2(lane) :
+ multiplied_lane = [lane[(byte-2) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[2] ^= ((lane[5] << 2) & 0xff)
+ multiplied_lane[3] ^= ((lane[6] << 2) & 0xff)
+ multiplied_lane[4] ^= ((lane[3] >> 3) & 0xff) ^ ((lane[4] >> 6) & 0xff)
+ multiplied_lane[5] ^= ((lane[5] << 6) & 0xff)
+ multiplied_lane[6] ^= ((lane[5] << 3) & 0xff)
+
+ # binary matrix M1
+ multi_mat_l4_m1 = 0
+ l4 = lane[4]
+ multi_mat_l4_m1 ^= ((l4 & 0x8) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x10) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x20) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x40) >> 3) ^ ((l4 & 0x1) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x80) >> 3) ^ ((l4 & 0x2) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x04) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x08) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x10) << 3)
+
+ multiplied_lane[5] ^= multi_mat_l4_m1
+
+ return multiplied_lane
+
+
+def MultiplyM3(lane) :
+ multiplied_lane = [lane[(byte-3) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[2] ^= ((lane[4] << 2) & 0xff) ^ ((lane[5] << 5) & 0xff)
+ multiplied_lane[3] ^= ((lane[5] << 2) & 0xff)
+ multiplied_lane[4] ^= ((lane[2] >> 3) & 0xff) ^ ((lane[3] >> 6) & 0xff) ^ ((lane[6] << 2) & 0xff)
+ multiplied_lane[6] ^= ((lane[5] << 6) & 0xff)
+ multiplied_lane[7] ^= ((lane[5] << 3) & 0xff)
+
+ # binary matrix M1
+ multi_mat_l3_m1 = 0
+ l3 = lane[3]
+ multi_mat_l3_m1 ^= ((l3 & 0x8) >> 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x10) >> 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x20) >> 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x40) >> 3) ^ ((l3 & 0x1) << 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x80) >> 3) ^ ((l3 & 0x2) << 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x04) << 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x08) << 3)
+ multi_mat_l3_m1 ^= ((l3 & 0x10) << 3)
+
+ # binary matrix M1
+ multi_mat_l4_m1 = 0
+ l4 = lane[4]
+ multi_mat_l4_m1 ^= ((l4 & 0x8) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x10) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x20) >> 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x40) >> 3) ^ ((l4 & 0x1) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x80) >> 3) ^ ((l4 & 0x2) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x04) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x08) << 3)
+ multi_mat_l4_m1 ^= ((l4 & 0x10) << 3)
+
+ # binary matrix M2
+ multi_mat_l4_m2 = 0
+ l4 = lane[4]
+ multi_mat_l4_m2 ^= ((l4 & 0x40) >> 6)
+ multi_mat_l4_m2 ^= ((l4 & 0x80) >> 6)
+ multi_mat_l4_m2 ^= (l4 & 0x08)
+ multi_mat_l4_m2 ^= (l4 & 0x10)
+ multi_mat_l4_m2 ^= (l4 & 0x20)
+ multi_mat_l4_m2 ^= (l4 & 0x40) ^ ((l4 & 0x1) << 6)
+ multi_mat_l4_m2 ^= (l4 & 0x80) ^ ((l4 & 0x2) << 6)
+
+
+ multiplied_lane[5] ^= multi_mat_l3_m1 ^ multi_mat_l4_m2
+ multiplied_lane[6] ^= multi_mat_l4_m1
+
+ return multiplied_lane
+
+
+def MultiplyMR(lane) :
+ multiplied_lane = [lane[(byte+1) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[2] ^= ((lane[4] >> 3) & 0xff)
+ multiplied_lane[4] ^= ((lane[6] << 3) & 0xff)
+ multiplied_lane[5] ^= ((lane[3] << 2) & 0xff)
+
+ return multiplied_lane
+
+
+def MultiplyMR2(lane) :
+ multiplied_lane = [lane[(byte+2) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[1] ^= ((lane[4] >> 3) & 0xff)
+ multiplied_lane[2] ^= ((lane[5] >> 3) & 0xff)
+ multiplied_lane[3] ^= ((lane[6] << 3) & 0xff)
+ multiplied_lane[4] ^= ((lane[3] << 2) & 0xff) ^ ((lane[7] << 3) & 0xff)
+ multiplied_lane[5] ^= ((lane[4] << 2) & 0xff)
+
+
+ # binary matrix m3
+ multi_mat_l6_m3 = 0
+ l6 = lane[6]
+ multi_mat_l6_m3 ^= (l6 & 0x1)
+ multi_mat_l6_m3 ^= (l6 & 0x2)
+ multi_mat_l6_m3 ^= (l6 & 0x4)
+ multi_mat_l6_m3 ^= (l6 & 0x8)
+ multi_mat_l6_m3 ^= (l6 & 0x10)
+
+
+ multiplied_lane[2] ^= multi_mat_l6_m3
+
+ return multiplied_lane
+
+def MultiplyMR3(lane) :
+ multiplied_lane = [lane[(byte+3) % 8] for byte in range(0, 8)]
+
+ multiplied_lane[0] ^= ((lane[4] >> 3) & 0xff)
+ multiplied_lane[1] ^= ((lane[5] >> 3) & 0xff)
+ multiplied_lane[3] ^= ((lane[3] << 2) & 0xff) ^ ((lane[7] << 3) & 0xff)
+ multiplied_lane[4] ^= ((lane[0] << 3) & 0xff) ^ ((lane[4] << 2) & 0xff)
+ multiplied_lane[5] ^= ((lane[5] << 2) & 0xff) ^ ((lane[6] << 5) & 0xff)
+
+ # binary matrix m3
+ multi_mat_l6_m3 = 0
+ l6 = lane[6]
+ multi_mat_l6_m3 ^= (l6 & 0x1)
+ multi_mat_l6_m3 ^= (l6 & 0x2)
+ multi_mat_l6_m3 ^= (l6 & 0x4)
+ multi_mat_l6_m3 ^= (l6 & 0x8)
+ multi_mat_l6_m3 ^= (l6 & 0x10)
+
+ # binary matrix m3
+ multi_mat_l7_m3 = 0
+ l7 = lane[7]
+ multi_mat_l7_m3 ^= (l7 & 0x1)
+ multi_mat_l7_m3 ^= (l7 & 0x2)
+ multi_mat_l7_m3 ^= (l7 & 0x4)
+ multi_mat_l7_m3 ^= (l7 & 0x8)
+ multi_mat_l7_m3 ^= (l7 & 0x10)
+
+ # binary matrix m4
+ multi_mat_l3_m4 = 0
+ l3 = lane[3]
+ multi_mat_l3_m4 ^= ((l3 & 0x2) >> 1)
+ multi_mat_l3_m4 ^= ((l3 & 0x4) >> 1)
+ multi_mat_l3_m4 ^= ((l3 & 0x8) >> 1)
+ multi_mat_l3_m4 ^= ((l3 & 0x10) >> 1)
+ multi_mat_l3_m4 ^= ((l3 & 0x20) >> 1)
+
+ # binary matrix m1 for MR
+ multi_mat_l6_m1 = 0
+ l6 = lane[6]
+ multi_mat_l6_m1 ^= ((l6 & 0x8) >> 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x10) >> 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x20) >> 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x40) >> 3) ^ ((l6 & 0x1) << 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x80) >> 3) ^ ((l6 & 0x2) << 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x4) << 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x8) << 3)
+ multi_mat_l6_m1 ^= ((l6 & 0x10) << 3)
+
+
+ multiplied_lane[1] ^= multi_mat_l6_m3
+ multiplied_lane[2] ^= multi_mat_l3_m4 ^ multi_mat_l6_m1 ^ multi_mat_l7_m3
+
+ return multiplied_lane
diff --git a/python/parameters_i_128.py b/python/parameters_i_128.py
new file mode 100644
index 0000000..7f0675a
--- /dev/null
+++ b/python/parameters_i_128.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 128
+TWEAK_BITS = 192
+ROUNDS = 32
diff --git a/python/parameters_i_192.py b/python/parameters_i_192.py
new file mode 100644
index 0000000..c513331
--- /dev/null
+++ b/python/parameters_i_192.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 192
+TWEAK_BITS = 192
+ROUNDS = 36
diff --git a/python/parameters_i_256.py b/python/parameters_i_256.py
new file mode 100644
index 0000000..ab81130
--- /dev/null
+++ b/python/parameters_i_256.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 256
+TWEAK_BITS = 192
+ROUNDS = 42
diff --git a/python/parameters_ii_128.py b/python/parameters_ii_128.py
new file mode 100644
index 0000000..8647a66
--- /dev/null
+++ b/python/parameters_ii_128.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 128
+TWEAK_BITS = 128
+ROUNDS = 32
diff --git a/python/parameters_ii_192.py b/python/parameters_ii_192.py
new file mode 100644
index 0000000..d17d6ec
--- /dev/null
+++ b/python/parameters_ii_192.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 192
+TWEAK_BITS = 128
+ROUNDS = 36
diff --git a/python/parameters_ii_256.py b/python/parameters_ii_256.py
new file mode 100644
index 0000000..159c78f
--- /dev/null
+++ b/python/parameters_ii_256.py
@@ -0,0 +1,6 @@
+"""
+ Lilliput ae i 128
+"""
+KEY_BITS = 256
+TWEAK_BITS = 128
+ROUNDS = 42
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 18:41:56 +0000