w_hat_documentary

풀이 -----BEGIN PUBLIC KEY----- ME0wDQYJKoZIhvcNAQEBBQADPAAwOQIyAyixQTmi5UuIpGYvGmfMOs0ZKcm2J5S7 ZJFq/wKZH4BFbk0O7U1ZHfdwjVry6bT7VokCAwEAAQ== -----END PUBLIC KEY----- b'\x01\x14\x1fUxa\xaa\xb3C\x9b\xe1\xeb\x87\xa0\x12`\x156e\x8a\x05\xf4\xf3x\xf7\xb9\xda\xe5J\x08Cn\\C]V\xdd\x1bH\x96\xb74\xae\xcd\x83\x88A\xd5\x92&' 공개키 파일과 암호화된 데이터 파일을 하나씩 준다. rsactftool을 이용해 풀어보면, 평문값을 구할 수 있다. STR : b'\x00\x02`g\x..

풀이 #!/usr/bin/env python from base64 import b64decode from base64 import b64encode import socket import multiprocessing from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from Crypto.Util.Padding import pad, unpad import hashlib import sys class AESCipher: def __init__(self, key): self.key = key def encrypt(self, data): iv = get_random_bytes(AES.block_size) self.cipher = AE..

풀이 #!/usr/bin/env python from base64 import b64decode from base64 import b64encode import socket import multiprocessing from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from Crypto.Util.Padding import pad, unpad import hashlib import sys class AESCipher: def __init__(self, key): self.key = key def encrypt(self, data): iv = get_random_bytes(AES.block_size) self.cipher = AE..