def dencrypt(M,bs,d,n):
a=[]
c=""
i=0
end=len(M[0])
while i<end:
if(i!=end-1):
c=make(str(Pow.resMod(int(M[0][i]),d,n)),bs)
else:
c=make(str(Pow.resMod(int(M[0][i]),d,n)),M[1])
a.append(c)
i+=1
return a
def encrypt(M,bs,e,n):
f=make(str(M),3)
i=0
batches=split(f,bs)[0]
tail=split(f,bs)[1]
while i<len(batches):
batches[i]=str(Pow.resMod(int(batches[i]),e,n))
i+=1
return [batches, tail]
