From 02eb0c9f257435595889d15577e4641b2242d0a1 Mon Sep 17 00:00:00 2001 From: Kévin Le Gouguec Date: Thu, 14 Mar 2019 12:38:36 +0100 Subject: [implem-python] Suppression de paramètres redondants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Création d'un nouveau module "helpers" qui contiendra les fonctions utilisées par les deux modes. --- python/helpers.py | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 python/helpers.py (limited to 'python/helpers.py') diff --git a/python/helpers.py b/python/helpers.py new file mode 100644 index 0000000..34949a4 --- /dev/null +++ b/python/helpers.py @@ -0,0 +1,25 @@ +from constants import BLOCK_BYTES + + +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 BlockbytesMatrixToBytes(matrix): + return bytes(byte for block in matrix for byte in block) + -- cgit v1.2.3