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Documentation #10

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Update main.sagews
canthou Sep 12, 2016
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canthou Sep 12, 2016
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canthou Sep 13, 2016
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canthou Sep 23, 2016
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35 changes: 7 additions & 28 deletions main.sagews
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Original file line number Diff line number Diff line change
Expand Up @@ -32,20 +32,10 @@ for i in range(m):
print "Public Key is: ",PK

#ENCRYPTION--------------------------------------------
Keyboard=[' ','!','"','#','$']
BinaryKeyboard=["00100000","00100001","00100010","00100011","00100100"]

test="!"
index=0
for i in range(len(test)):
if(test[i]==Keyboard[i]):
index=i
test=Keyboard[index]
print test

#A message in binary
Message=[0,1,1,0,1,0,1,1,0,0]
Messagelength=10
#Message to binary
Amessage="A message"
Message=' '.join(format(ord(x), 'b') for x in Amessage)
Messagelength=len(Message)

#EncryptedMessage matrix initialization
EncryptedMessage=matrix(Messagelength,n+1)
Expand All @@ -72,21 +62,10 @@ for i in range(Messagelength):
S[ci,l]=PK[rand,l]
print "Random Set is: ",S
print "----------------------"
sumOfB=0 #this is the variable that will hold the sum of b,of last column
for k in range(n+1):
for j in range(Ssize):
#In each column of EncryptedMessage, the sum of A parameters of each of column of S is entered,except for the last one
if(k<n):
EncryptedMessage[i,k]+=S[j,k]
else:
sumOfB +=S[j,k]
#The sum is mod p
EncryptedMessage[i,k]=Mod(EncryptedMessage[i,k],p)
if Message[i]==0:
#If the bit is 0, we enter in the second column of EncryptedMessage the sum of B of S.
EncryptedMessage[i,n]=Mod(sumOfB,p)
else:
#If the bit is 1, we enter in the second column of EncryptedMessage the sum of the floor of p/2 plus Β of S.
EncryptedMessage[i,n]=Mod(sumOfB+floor(p/2),p)
EncryptedMessage[i,k]+=Mod(S[j,k],p)
if Message[i]==1:
EncryptedMessage[i,n]=Mod(EncryptedMessage[i,n]+floor(p/2),p)
print EncryptedMessage