def sanitizeKey(key):
sanitizedKey = ""
for y in range(len(key)):
if key[y].isalpha():
sanitizedKey += key[y]
sanitizedKey = toNum(sanitizedKey)
return sanitizedKey
def setList(self, i_strHourList):
self.m_List = []
tmp_lists = i_strHourList.split(",")
for i in range(len(tmp_lists)):
self.m_List.append(common.toNum(tmp_lists[i]))
def decrypt(shift, ciphertext):
temp = toNum(ciphertext)
plaintext = []
for i in temp:
i -= shift
i %= 26
plaintext.append(i)
return toLetter(plaintext)
def encrypt(radius, plaintext):
temp = toNum(plaintext)
ciphertext = []
j = 0
while i =< radius:
while j < plaintext
i %= 26
ciphertext.append(i)
return toLetter(ciphertext)
def decrypt(alpha, beta, ciphertext):
modInv = modularInverse(alpha, 26)
if modInv != None:
plaintext = toNum(ciphertext)
for i in range(len(plaintext)):
if ciphertext[i].isalpha():
plaintext[i] = (modInv * (plaintext[i] - beta)) % 26
return toLetter(plaintext)
else:
return "No MMI for " + str(alpha) + " and 26."
def encrypt(key, plaintext):
ciphertext = []
sanitizedKey = sanitizeKey(key)
numPlaintext = toNum(plaintext)
y = 0 # key index
for x in range(len(plaintext)):
if plaintext[x].isalpha():
ciphertext.append((numPlaintext[x] + sanitizedKey[y]) % 26)
y = (y + 1) % len(sanitizedKey)
else:
ciphertext.append(plainttext[x])
return toLetter(ciphertext)
def decrypt(key, ciphertext):
plaintext = []
sanitizedKey = sanitizeKey(key)
numCiphertext = toNum(ciphertext)
y = 0 # key index
for x in range(len(ciphertext)):
if ciphertext[x].isalpha():
plaintext.append((numCiphertext[x] - sanitizedKey[y]) % 26)
y = (y + 1) % len(sanitizedKey)
else:
plaintext.append(ciphertext[x])
return toLetter(plaintext)
def exist(self, i_nVal):
if '*' in self.m_List:
return True
l_nVal = common.toNum(i_nVal)
if len(self.m_List) > 0:
retVal = l_nVal in self.m_List
if l_nVal >= self.m_From and l_nVal <= self.m_To:
retVal = True
return retVal
def encrypt(alpha, beta, plaintext):
ciphertext = toNum(plaintext)
for i in range(len(ciphertext)):
if plaintext[i].isalpha():
ciphertext[i] = (ciphertext[i] * alpha + beta) % 26
return toLetter(ciphertext)