def encrypt_with_fixed_key(plain):
#string = "Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkgaGFpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBqdXN0IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUgYnkK"
string = "Um9sbGluJyBpbiBteSA1LjA="
plain = plain + base64.b64decode(string)
return ecb_mode.ecb_encrypt(aes_128.aes_128_encrypt, plain, key)
def main():
f = open("ecb_cbc_detect.txt", 'r')
plain = f.read()
f.close()
#print len(plain)
plain = my_rand_str(my_rand(11, 5)) + plain
plain += my_rand_str(my_rand(11, 5))
#plain = pkcs7.pkcs7_pad(plain, 16)
#print len(plain)
key = my_rand_str(16)
iv = my_rand_byte(16)
flag = my_rand(2)
cipher = ''
if flag == 0:
#ecb
cipher = ecb_mode.ecb_encrypt(aes_128.aes_128_encrypt, plain, key)
print "encrypt mode: ECB"
else:
#cbc
cipher = cbc_mode.cbc_encrypt(aes_128.aes_128_encrypt, iv, plain, key)
print "encrypt mode: CBC"
#print base64.b64encode(cipher)
if not ecb_cbc_detect(cipher):
flag -= 1
if flag == 0:
print "Detect succeed"
else:
print "Detect failed"
def main():
key = my_rand_str(16)
plain_dic = profile_for("*****@*****.**")
plain_cookie = my_encode(plain_dic)
plain = plain_cookie
print "plain:\n" + plain
cipher = ecb_encrypt(aes_128_encrypt, plain, key)
plain = ecb_decrypt(aes_128_decrypt, cipher, key)
plain_cookie = plain
plain_dic = my_decode(plain_cookie)
print "plain:\n" + plain
def encrypt_with_fixed_key(plain):
plain = prefix_str + plain + suffix_str
return ecb_mode.ecb_encrypt(aes_128_encrypt, plain, key)
return matrix_to_list(state)
if __name__ == '__main__':
key = 'YELLOW SUBMARINE'
#encrypt
f = open('plain.txt', 'r')
plaintext = f.read()
f.close();
# padding
#plaintext += (16 - (len(plaintext) % 16)) * '\0'
#print len(plaintext), ord(plaintext[-1])
#ciphertext = aes_128_ecb_encrypt(plaintext, key)
ciphertext = ecb_encrypt(aes_128_encrypt, plaintext, key)
f = open('cipher.txt', 'w')
b64_ciphertext = base64.b64encode(ciphertext)
for i in range(0, len(b64_ciphertext), 60):
f.write(b64_ciphertext[i:i+60] + '\n')
f.close()
#decrypt
f = open('aes_128.txt', 'r')
b64_ciphertext = f.read()
f.close();
ciphertext = base64.b64decode(b64_ciphertext)
#plaintext = aes_128_ecb_decrypt(ciphertext, key)