Merge pull request #1 from AnsahMohammad/AnsahMohammad-patch-1

Ansah mohammad patch 1

vigenere_EncrypterDecrypter.py

@@ -0,0 +1,87 @@
+alphabets='''ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz[]{}#%^^*+=_\|~<>€0987654321 £¥•- :;()$&@".,?'''
+table=[]
+spec_char='''[]{}#%^^*+=_\|~<>€0987654321 £¥•- :;()$&@".,?!'''
+
+for n in range(97):
+	a=alphabets[n:97]+alphabets[0:n]
+	table.append(a)
+
+index={}
+for n in range(97):
+	index.update({alphabets[n]:n})
+
+def scan(word):
+	word=word.lower()
+	c=""
+	spec_char='''[]{}#%^^*+=_\|~<>€0987654321 £¥•- :;()$&@".,?!'''
+	for char in word:
+		if char not in spec_char:
+			c+=char
+	return c
+
+
+
+#table letter scanner
+
+def f(x,y):
+	x=int(x)
+	y=int(y)
+	return table[x][y]
+
+#decrypter??????????????
+def decrypt(msg,key):
+
+	length_msg=len(msg)
+	key_length=len(key)
+	key*=(length_msg//key_length)+1
+	key=key[:length_msg]
+
+	c=""
+
+	k=[]
+
+	for n in range(length_msg):
+		k.append(index[key[n]])
+
+	res=[]
+
+	for n in range(length_msg):
+		for i in range(97):
+			if table[k[n]][i] == msg[n]:
+				res.append(table[i][0])
+
+	result="".join(res)
+	# print(result)
+	return result
+
+
+
+#encrypter???????????????
+
+def encrypt(msg,key):
+	spec_char='''[]{}#%^^*+=_\|~<>€0987654321 £¥•- :;()$&@".,?!'''
+	length_msg=len(msg)
+	key_length=len(key)
+	key*=(length_msg//key_length)+1
+	key=key[:length_msg]
+
+	c=""
+
+	m=[]
+	k=[]
+
+	for n in range(length_msg):
+		m.append(index[msg[n]])
+		k.append(index[key[n]])
+
+	for n in range(length_msg):
+		c+=f(m[n],k[n])
+
+	# print(c)
+	return c
+
+
+a = encrypt("my name is ansah","mak")
+print(a)
+c = decrypt(a,"mak")
+print(c)