在开始之前先澄清一下：我知道有类似的主题，但没有真正提供任何直接帮助。另外：这是一个班级项目；所以我不是在寻找任何人为我编写我的项目。提示和建议是我正在寻找的。（这种事情我会去找我的教授，但他懒得检查他的电子邮件。）
该程序旨在获取用户提供的种子，根据整数生成密钥，然后生成 95 x 95 矩阵，其中所有可打印的 ascii 字符都可用于加密/解密目的。（键全部为 alpha，并且大写）
踢球者：所有单元格必须是随机的。见下图： 随机 Vigenere 矩阵
我将在下面发布我的代码（Python 肯定不是我的强项，尽管我肯定会接受建设性的批评。）：
import random
class Vigenere(object):
def __init__(self, seed):
random.seed(seed)
#string containing all valid characters
self.symbols= """!"#$%&'()*+,-./0123456789:;?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\] ^_`abcdefghijklmnopqrstuvwxyz{|}~"""
self.eTable = [[0 for i in range(len(self.symbols))] for i in range(len(self.symbols))]
self.dTable = [[0 for i in range(len(self.symbols))] for i in range(len(self.symbols))]
self.keyWord = ""
self.message = ""
self.ciphertext = ""
self.keywordFromSeed(seed)
def setMessage(self,message):
self.message = message
#Generate psuedorandom keyword from seed
def keywordFromSeed(self,seed):
Letters = []
while seed > 0:
Letters.insert(0,chr((seed % 100) % 26 + 65))
seed = seed // 100
self.keyWord = "".join(Letters)
self.buildVigenere()
#Contructs a 95 x 95 matrix filled randomly
def buildVigenere(self):
n = len(self.symbols)
#Build the vigenere matrix
for i in range(n):
temp = self.symbols
for j in range(n):
r = random.randrange(len(temp))
self.eTable[i][j] = temp[r]
#This line below does not fill entire matrix. Why?
self.dTable[j][(ord(temp[r])-32)] = chr(i+32)
temp = temp.replace(temp[r],'')
def encrypt(self):
for i in range(len(self.message)):
mi = i
ki = i % len(self.keyWord)
self.ciphertext = self.ciphertext + self.eRetrieve(ki,mi)
def decrypt(self):
for i in range(len(self.message)):
emi = i
ki = i % len(self.keyWord)
char = self.dRetrieve(ki,emi)
self.ciphertext = self.ciphertext + char
print(self.ciphertext)
def eRetrieve(self,ki,mi):
row = ord(self.message[mi]) - 32
col = ord(self.keyWord[ki]) - 32
print(row, col)
return self.eTable[row][col]
def dRetrieve(self,ki,emi):
n = len(self.symbols)
whichRow = ord(self.keyWord[ki]) - 32
whichCol = ord(self.message[emi]) - 32
return(self.dTable[whichRow][whichCol])以防万一，这是我的 main.py：
import argparse
import randomized_vigenere as rv
def main():
#Parse parameters
parser = argparse.ArgumentParser()
parser.add_argument("-m", "--mode", dest="mode", default = "encrypt", help="Encrypt or Decrypt")
parser.add_argument("-i", "--inputfile", dest="inputFile", default = "inputFile.txt", help="Input Name")
parser.add_argument("-o", "--outputfile", dest="outputFile", default = "outputFile.txt", help="Output Name")
parser.add_argument("-s", "--seed", dest="seed", default =7487383487438734, help="Integer seed")
args = parser.parse_args()
#Set seed and generate keyword
seed = args.seed
#Construct Matrix
f = open(args.inputFile,'r')
message = f.read()
Matrix = rv.Vigenere(seed)
Matrix.setMessage(message)
if(args.mode == 'encrypt'):
Matrix.encrypt()
Matrix.setMessage(Matrix.ciphertext)
Matrix.decrypt()
else:
Matrix.decrypt()
o = open(args.outputFile,'w')
o.write(str(Matrix.ciphertext))
if __name__ == '__main__':
main()我一直在使用默认种子：7487383487438734
我的明文：ABCdefXYZ