DESKeygen.py File Reference

Namespaces
	DESKeygen

Functions
def	DESKeygen.binary_string (k)
	BINARY STRING COVERSION. More...
def	DESKeygen.get_x_bit_permutation (k, pc)
	GET PERMUTATION STRING. More...
def	DESKeygen.perform_xor (first_d, second_d)
def	DESKeygen.compression_to_32 (string)
	GET PERMUTATION STRING. More...

Variables
list	DESKeygen.EXPANSION
	This is an implementation of DES Cipher Algorithm DES = Data Encryption Standard STEP 1: create all constants first. More...
list	DESKeygen.IP
	IP = Initial Permutation This is used to permute the plain_text binary form based on the beloe stated table. More...
list	DESKeygen.PC1
	PC1 = Permuted Choice 1 This is used to permute the plain_text binary form based on the below stated table. More...
list	DESKeygen.PC2
	PC2 = Permuted Choice 2 This is used to permute the plain_text binary form based on the below stated table. More...
list	DESKeygen.LEFTROTS
list	DESKeygen.S
	S-Boxes We now do something strange with each group of six bits: we use them as addresses in tables called "S boxes". More...
list	DESKeygen.Reduced_ka_permutation
int	DESKeygen.hexa_scale = 16
	DESKeygen.key = str(input())
	DESKeygen.plaintext = str(input())
	DESKeygen.L = plaintext[0:8]
	DESKeygen.R = plaintext[8:16]
	DESKeygen.plain_binary = binary_string(plaintext)
	DESKeygen.b_key = binary_string(key)
	DESKeygen.five_six_perm = get_x_bit_permutation(b_key, PC1)
list	DESKeygen.C = []
list	DESKeygen.D = []
	DESKeygen.first = C[i - 1][0]
	DESKeygen.second = D[i - 1][0]
	DESKeygen.Cx = C[i - 1][1:28]+first
	DESKeygen.Dx = D[i - 1][1:28]+second
list	DESKeygen.key_list = []
list	DESKeygen.hex_key_list = []
	DESKeygen.initial_permutation = get_x_bit_permutation(plain_binary, IP)
	DESKeygen.L0 = initial_permutation[0:32]
	DESKeygen.R0 = initial_permutation[32:64]
	DESKeygen.L1 = copy(R0)
	DESKeygen.ER0 = get_x_bit_permutation(R0, EXPANSION)
	DESKeygen.func_ER0K1 = perform_xor(key_list[0], ER0)
	DESKeygen.reduced_value = compression_to_32(func_ER0K1)
	DESKeygen.permuted_reduced_val = get_x_bit_permutation(reduced_value, Reduced_ka_permutation)
	DESKeygen.R1 = perform_xor(L0, permuted_reduced_val)
	DESKeygen.final_bit_string = L1+R1
	DESKeygen.final_res = hex(int(final_bit_string, 2))[2:].upper()