Python pad_string_pkcs7 Beispiele

Beispiel #1

def ECB_encryption_oracle(input_string, key):
    app_aft = b64.b64decode(
        "Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkgaGFpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBqdXN0IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUgYnkK"
    )
    _unencrypted = input_string + app_aft
    to_encrypt = s2_1.pad_string_pkcs7(_unencrypted)
    encrypted_string = s2_2.encrypt_AES_ECB(to_encrypt, key)
    return encrypted_string

Beispiel #2

Datei: set_2_7.py Projekt: AlamParihar/Cryptography-Challenges

def CBC_encryption_oracle(user_input):
    prepend = "comment1=cooking%20MCs;userdata="
    append = ";comment2=%20like%20a%20pound%20of%20bacon;"
    user_input = user_input.replace(';', '').replace('=', '')
    to_encrypt = s2_1.pad_string_pkcs7(
        (prepend + user_input + append).encode())
    encrypted_string = s2_2.CBC_encrypt(to_encrypt, unkown_key, IV)
    return encrypted_string

Beispiel #3

Datei: set_2_5.py Projekt: AlamParihar/Cryptography-Challenges

def profile_for(user_input, key):

    if type(user_input) == bytes:
        user_input = user_input.decode()
    user_input = user_input.replace('&', '')
    user_input = user_input.replace('=', '')
    UID = 10
    role = 'user'
    profile = "email={}&UID={}&role={}".format(user_input, str(UID), role)
    to_encrypt = s2_1.pad_string_pkcs7(profile.encode())
    profile = s2_2.encrypt_AES_ECB(to_encrypt, key)
    return profile

Beispiel #4

Datei: set_4_3.py Projekt: AlamParihar/Cryptography-Challenges

def CBC_encryption_oracle(user_input):
    to_encrypt=s2_1.pad_string_pkcs7((user_input))
    encrypted_string=s2_2.CBC_encrypt(to_encrypt, unknown_key, IV)
    return encrypted_string

Beispiel #5

Datei: set_3_1.py Projekt: AlamParihar/Cryptography-Challenges

def u_encrypt_cbc(plain_text):
    padded_plain_text = s2_1.pad_string_pkcs7(plain_text)
    cipher_text = s2_2.CBC_encrypt(padded_plain_text, ukey, IV)
    return cipher_text