def post(self): #gathers user input and passes it to write_content
rotate_recieved = self.request.get("rot")
if rotate_recieved == 3.14 or str(rotate_recieved) == "pi":
pass
try:
rotate_recieved = int(rotate_recieved)
message_recieved = self.request.get("message")
encrypted_message = caesar.encrypt(message_recieved,
int(rotate_recieved))
safe_message = cgi.escape(encrypted_message)
form = "<form method='post'>" + write_content(
rotate_recieved, safe_message) + "</form>"
self.response.write(form)
except:
rotate_recieved = 0
message_recieved = self.request.get("message")
encrypted_message = caesar.encrypt(message_recieved,
int(rotate_recieved))
safe_message = cgi.escape(encrypted_message)
form = "<form method='post'>" + write_content(
rotate_recieved, safe_message
) + "</form>" + "<p style='color:red;'>" + "Rotation amount must be an integer!" + "</p>"
self.response.write(form)
def test_encrpyt():
#regl'r cipher
k = 3
m = "Hello"
assert encrypt(k, m) == "khoor"
#What if k is big?
k = 14
m = "Hello"
assert encrypt(k,m) == "vszzc"
#handles spaces by leaving spaces alone.
k=3
m = "Hello hello"
assert encrypt(k,m) == "khoor khoor"
def vigenere(text,encryption_key):
encrypt_code_list = []
encrypt_text = ""
for char in encryption_key:
encrypt_code_list.append(alphabet_position(char))
i = 0
for char in text :
if char == encrypt(char, encrypt_code_list[i]):
encrypt_text = encrypt_text + char
else:
encrypt_text = encrypt_text + encrypt(char, encrypt_code_list[i])
i = i + 1
if i == (len(encrypt_code_list)):
i = 0
return(encrypt_text)
def encryption():
if request.method == 'POST':
shift = request.form['shift']
plaintext = request.form['plaintext']
shift = int(shift)
new_message = encrypt(plaintext, shift)
return render_template('index.html', new_message=new_message)
def post(self):
rotation = int(self.request.get("Rotation"))
text = self.request.get("text")
encrypted_msg = caesar.encrypt(text, rotation)
escaped_msg = cgi.escape(encrypted_msg)
content = build_page(escaped_msg)
self.response.write(content)
def test_caesar_encrypt_upper():
"""
Test caesar upper
"""
assert caesar.encrypt(
"the quick brown fox jumps over the lazy dog".upper(),
10) == "DRO AESMU LBYGX PYH TEWZC YFOB DRO VKJI NYQ"
def post(self):
message = self.request.get("message")
rotation = int(self.request.get("rotation"))
encrypted_message = caesar.encrypt(message, rotation)
escaped_message = cgi.escape(encrypted_message)
content = build_page(escaped_message)
self.response.write(content)
def post(self):
message = self.request.get("message")
rot = self.request.get("rot")
encrypted_text = caesar.encrypt(message, rot)
escaped_message = cgi.escape(encrypted_text)
content = build_page(escaped_message)
self.response.write(content)
def post(self):
message = self.request.get("message") #hello</textarea>hello
rotation = int(self.request.get("rotation")) # 0
encrypted_message = caesar.encrypt(message, rotation) #hello</textarea>hello
escaped_message = cgi.escape(encrypted_message) # hello</textarea>hello
content = build_page(escaped_message)
self.response.write(content)
def post(self):
text = self.request.get("text")
num = int(self.request.get("num"))
answer = encrypt(text, num)
self.response.out.write(page_header.format(answer))
def Caesar():
msg = ''
output = ''
set1 = 'opt1'
set2 = 'opt4'
shift = '0'
if request.method == 'POST':
task = request.form.get('task')
msg = request.form.get('original-text')
set1 = request.form.get('set1')
set2 = request.form.get('set2')
shift = request.form.get('shift')
if task == 'encrypt':
output = caesar.encrypt(msg,int(shift))
if set1 == 'opt1':
pass
elif set1 == 'opt2':
output = removeAllSpecialCharactersExcludingSpaces(output)
elif set1 == 'opt3':
output = removeAllSpecialCharactersIncludingSpaces(output)
elif task == 'decrypt':
output = caesar.decrypt(msg,int(shift))
if set1 == 'opt1':
pass
elif set1 == 'opt2' :
output = removeAllSpecialCharactersExcludingSpaces(output)
elif set1 == 'opt3':
output = removeAllSpecialCharactersIncludingSpaces(output)
if set2 == 'opt4':
pass
elif set2 == 'opt5':
output = output.upper()
elif set2 == 'opt6':
output = output.lower()
return render_template('caesar.html', title='Caesar Cipher', msg=msg, output=output, set1=set1, set2=set2, shift=shift)
def post(self):
message = self.request.get("message")
rotation = int(self.request.get('rotation'))
encrypted_message = caesar.encrypt(message, rotation) # hello</textarea>hello
escaped_message = cgi.escape(encrypted_message)
content = build_page(escaped_message)
self.response.write(content)
def post(self):
message = self.request.get("message")
rot = self.request.get("rot")
encrypted_message = caesar.encrypt(message, int(rot))
escaped_message = cgi.escape(encrypted_message)
self.response.write(build_page(escaped_message, int(rot)))
def post(self):
message = self.request.get("message")
rot = int(self.request.get('rotation'))
encryptedMessage = caesar.encrypt(message, rot)
escapedMessage = cgi.escape(encryptedMessage)
content = buildPage(escapedMessage)
self.response.write(content)
def post(self):
text = self.request.get('text')
rot = self.request.get('rot')
rot = int(rot)
rot13 = encrypt(text, rot)
response = (form % {"text": rot13})
self.response.write(response)
def test_caesar_encrypt_zapor():
"""
Test caesar zapor
"""
assert caesar.encrypt(
"the quick Brown fox_ jumps over the laZy dog?",
-500) == "nby kocwe Vliqh zir_ dogjm ipyl nby fuTs xia?"
def post(self):
rot = self.request.get("rot")
text = self.request.get("text")
rot = int(rot)
answer = encrypt(text, rot)
answer_escaped = cgi.escape(answer)
self.response.out.write(form % {"error": answer_escaped})
def encrypto():
rot = request.form['rot']
rot = int(rot)
text = request.form['text']
new = encrypt(text, rot)
return form.format(new)
def test_caesar_encrypt_insane():
"""
Test caesar insane
"""
assert caesar.encrypt(
"the quick brown fox jumps over the lazy dog?",
500) == "znk waoiq hxuct lud pasvy ubkx znk rgfe jum?"
def webEncrypt():
toEncrypt = request.form['text']
numRot = int(request.form['rot'])
newMessage = encrypt(toEncrypt, numRot)
return form.format(newMessage)
def post(self, crip=""):
answer = self.request.get('crip')
number = self.request.get("number")
newstr = caesar.encrypt(answer,int(number))
escaped_message = cgi.escape(newstr)
form2 = """<form method= "post"><h1>Enter some text to ROT13:</h1><p>Your coded message rotated by """+ number + """!</p><textarea name="crip">""" + escaped_message +"""</textarea><br><br><input type="submit"></form>"""
self.response.write(form2)
def post(self):
message = self.request.get("message")
rotate = int(self.request.get("rotate"))
enc_message = caesar.encrypt(message, rotate)
esc_message = cgi.escape(enc_message)
content = landing_page(esc_message)
self.response.write(content)
def test(input, password):
cprint("Input:", attrs=["bold", "underline"])
print(input + "\n")
cprint("Password:"******"bold", "underline"])
print(password + "\n")
output = caesar.encrypt(input, password)
cprint("Output:", attrs=["bold", "underline"])
print(output + "\n")
revInput = caesar.decrypt(output, password)
cprint("Reversed input:", attrs=["bold", "underline"])
print(revInput)
if revInput == input:
cprint("(Correct)\n", "green")
else:
cprint("\nIncorrect en-/decryption!", "red")
sys.exit(1)
revPassword = reconstruct.reconstruct(input, output)
cprint("Reversed password:"******"bold", "underline"])
print(revPassword)
if reconstruct.compare(reconstruct.convertPassword(password), revPassword):
cprint("(Correct)", "green")
else:
cprint("\nIncorrect reconstruction!", "red")
sys.exit(1)
def post(self):
userNumber = self.request.get('rot')
userNumber = int(userNumber)
userText = self.request.get('text')
userText = encrypt(userText, userNumber)
userText = cgi.escape(userText, quote=True)
self.write_form(userText)
def post(self):
rot = self.request.get("rot")
rot = int(rot)
text = self.request.get("text")
text = cgi.escape(text, quote = True)
user_encrypt = encrypt(text, rot)
self.response.write(form_data % {"value": user_encrypt})
def post(self):
message = self.request.get("message")
rot = self.request.get("rot")
coded = caesar.encrypt(message, int(rot))
escaped_message = cgi.escape(coded)
content = build_page(escaped_message, rot)
self.response.write(content)
def post(self):
message = self.request.get("userTextArea")
rotVal = self.request.get("userInpRotation")
rotVal = int(rotVal)
encrypted_message = caesar.encrypt(message, rotVal)
escape_message = cgi.escape(encrypted_message)
content = page_build(escape_message)
self.response.write(content)
def post(self):
message = self.request.get("message_textarea")
num = int(self.request.get("rotation_number"))
encrypted_message = caesar.encrypt(message, num)
escaped_message = cgi.escape(encrypted_message)
content = build_page(escaped_message)
self.response.write(content)
def post(self):
old_string = self.request.get("old_string")
old_string = cgi.escape (old_string)
rot = self.request.get("rot")
rotint = int(rot)
new_string = encrypt(old_string,rotint)
self.response.out.write("<p>" + old_string + " is the unencrypted version of your word!"+"</p>")
self.response.out.write("<p>"+new_string + " is the encrypted version of your word!"+"</p>")
def post(self):
message = self.request.get("message") #whatever they type
rotation = int(self.request.get("rotation"))
encrypted_message = caesar.encrypt(message,rotation) #messge with brackets
escaped_message = cgi.escape(encrypted_message)
content = build_page(escaped_message)
self.response.write(content)
def get(self): message = 'Hello World' encrypted_message = caesar.encrypt(message, 13) textarea = "<textarea>" + encrypted_message + "</textarea>" submit = "<input type='submit'/>" form = "<form>" + textarea + "<br>" + submit + "</form>" self.response.write(form)
def encrypt(cypher, msg, key):
crypt = ''
if cypher == "caesar":
crypt = caesar.encrypt(msg, int(key))
elif cypher == "vigenere":
crypt = vigenere.encrypt(msg, key)
else:
print 'cypher not found'
return 0
return crypt
def main():
"""Plot relative frequency graph for Caesar, Vigenere, Hill & Playfair ciphers"""
#Values
inputfile = sys.argv[1]
caesar_key = 3
vigenere_key = 'Vigenere'
hill_key = hill.npmatrix([[6,24,1],[13,16,10],[20,17,15]])
playfair_key = 'Playfair key'
#Plaintext
plaintext = open(inputfile, 'r').read().upper()
freq_plain = Counter(plaintext)
e_count = freq_plain['E']
freq_plain = sorted([freq_plain[c] for c in letters], reverse=True)
freq_plain = [i/float(e_count) for i in freq_plain]
#Caesar
caesar_text = caesar.encrypt(plaintext, caesar_key)
freq_caesar = Counter(caesar_text)
freq_caesar = sorted([freq_caesar[c] for c in letters], reverse=True)
freq_caesar = [i/float(e_count) for i in freq_caesar]
#Vigenere
vigenere_text = vigenere.encrypt(plaintext, vigenere_key)
freq_vigenere = Counter(vigenere_text)
freq_vigenere = sorted([freq_vigenere[c] for c in letters], reverse=True)
freq_vigenere = [i/float(e_count) for i in freq_vigenere]
#Hill
hill_text = hill.encrypt(plaintext, hill_key)
freq_hill = Counter(hill_text)
freq_hill = sorted([freq_hill[c] for c in letters], reverse=True)
freq_hill = [i/float(e_count) for i in freq_hill]
#Playfair
playfair_text = playfair.encrypt(plaintext, playfair_key)
freq_playfair = Counter(playfair_text)
freq_playfair = sorted([freq_playfair[c] for c in letters], reverse=True)
freq_playfair = [i/float(e_count) for i in freq_playfair]
#Plotting linegraphs
line_chart = pygal.Line(config=CustomConfig2, style=RedBlueStyle, y_title='Relative frequency')
line_chart.title = 'Relative frequency for various ciphers'
line_chart.add('Plaintext', freq_plain)
line_chart.add('Caesar', freq_caesar)
line_chart.add('Vigenere', freq_vigenere)
line_chart.add('Hill', freq_hill)
line_chart.add('Playfair', freq_playfair)
line_chart.render_in_browser()
print Counter(plaintext)
import caesar
if __name__ == '__main__':
en = [('MIRACLE', 3), ('CALCULATOR', 11), ('ELECTRONIC MAIL', 5),
('DIGITAL SIGNATURE', 2)]
de = ['IGQTI GYCUJ KPIVQ PXXXX', 'UIPNB TKFGG FSTPO',
'AREYY KYYOS VYUTM XGTZ', 'CDTC JCON KPEQ NP', 'ECFDEPO ALCEJ']
for pt in en:
print caesar.encrypt(pt[0], pt[1])
for pt in de:
print "----------------------------------------"
print pt
for (k, s) in enumerate(caesar.try_decrypt(pt)):
print "%s k=%d" % (s, k)
print "----------------------------------------"