コード例 #1
0
ファイル: megaclient.py プロジェクト: CyberjujuM/MegaFS
    def login(self):
        password_aes = prepare_key(str_to_a32(self.password))
        del self.password
        uh = stringhash(self.email.lower(), password_aes)
        res = self.api_req({'a': 'us', 'user': self.email, 'uh': uh})

        enc_master_key = base64_to_a32(res['k'])
        self.master_key = decrypt_key(enc_master_key, password_aes)
        if 'tsid' in res:
            tsid = base64urldecode(res['tsid'])
            if a32_to_str(encrypt_key(str_to_a32(tsid[:16]), self.master_key)) == tsid[-16:]:
                self.sid = res['tsid']
        elif 'csid' in res:
            enc_rsa_priv_key = base64_to_a32(res['privk'])
            rsa_priv_key = decrypt_key(enc_rsa_priv_key, self.master_key)

            privk = a32_to_str(rsa_priv_key)
            self.rsa_priv_key = [0, 0, 0, 0]

            for i in xrange(4):
                l = ((ord(privk[0]) * 256 + ord(privk[1]) + 7) / 8) + 2
                self.rsa_priv_key[i] = mpi2int(privk[:l])
                privk = privk[l:]

            enc_sid = mpi2int(base64urldecode(res['csid']))
            decrypter = RSA.construct((self.rsa_priv_key[0] * self.rsa_priv_key[1], 0L, self.rsa_priv_key[2], self.rsa_priv_key[0], self.rsa_priv_key[1]))
            sid = '%x' % decrypter.key._decrypt(enc_sid)
            sid = binascii.unhexlify('0' + sid if len(sid) % 2 else sid)
            self.sid = base64urlencode(sid[:43])
コード例 #2
0
    def login(self):
        password_aes = prepare_key(str_to_a32(self.password))
        del self.password
        uh = stringhash(self.email.lower(), password_aes)
        res = self.api_req({'a': 'us', 'user': self.email, 'uh': uh})

        enc_master_key = base64_to_a32(res['k'])
        self.master_key = decrypt_key(enc_master_key, password_aes)
        if 'tsid' in res:
            tsid = base64urldecode(res['tsid'])
            if a32_to_str(encrypt_key(str_to_a32(tsid[:16]),
                                      self.master_key)) == tsid[-16:]:
                self.sid = res['tsid']
        elif 'csid' in res:
            enc_rsa_priv_key = base64_to_a32(res['privk'])
            rsa_priv_key = decrypt_key(enc_rsa_priv_key, self.master_key)

            privk = a32_to_str(rsa_priv_key)
            self.rsa_priv_key = [0, 0, 0, 0]

            for i in xrange(4):
                l = ((ord(privk[0]) * 256 + ord(privk[1]) + 7) / 8) + 2
                self.rsa_priv_key[i] = mpi2int(privk[:l])
                privk = privk[l:]

            enc_sid = mpi2int(base64urldecode(res['csid']))
            decrypter = RSA.construct(
                (self.rsa_priv_key[0] * self.rsa_priv_key[1], 0L,
                 self.rsa_priv_key[2], self.rsa_priv_key[0],
                 self.rsa_priv_key[1]))
            sid = '%x' % decrypter.key._decrypt(enc_sid)
            sid = binascii.unhexlify('0' + sid if len(sid) % 2 else sid)
            self.sid = base64urlencode(sid[:43])
コード例 #3
0
ファイル: megaclient.py プロジェクト: CyberjujuM/MegaFS
    def uploadfile(self, src_path, target, filename):
        infile = open(src_path, 'rb')
        size = os.path.getsize(src_path)
        ul_url = self.api_req({'a': 'u', 's': size})['p']

        ul_key = [random.randint(0, 0xFFFFFFFF) for _ in xrange(6)]
        encryptor = AES.new(a32_to_str(ul_key[:4]), AES.MODE_CTR, counter = Counter.new(128, initial_value = ((ul_key[4] << 32) + ul_key[5]) << 64))

        file_mac = [0, 0, 0, 0]
        for chunk_start, chunk_size in sorted(get_chunks(size).items()):
            chunk = infile.read(chunk_size)

            chunk_mac = [ul_key[4], ul_key[5], ul_key[4], ul_key[5]]
            for i in xrange(0, len(chunk), 16):
                block = chunk[i:i+16]
                if len(block) % 16:
                    block += '\0' * (16 - len(block) % 16)
                block = str_to_a32(block)
                chunk_mac = [chunk_mac[0] ^ block[0], chunk_mac[1] ^ block[1], chunk_mac[2] ^ block[2], chunk_mac[3] ^ block[3]]
                chunk_mac = aes_cbc_encrypt_a32(chunk_mac, ul_key[:4])

            file_mac = [file_mac[0] ^ chunk_mac[0], file_mac[1] ^ chunk_mac[1], file_mac[2] ^ chunk_mac[2], file_mac[3] ^ chunk_mac[3]]
            file_mac = aes_cbc_encrypt_a32(file_mac, ul_key[:4])

            chunk = encryptor.encrypt(chunk)
            outfile = urllib.urlopen(ul_url + "/" + str(chunk_start), chunk)
            completion_handle = outfile.read()
            outfile.close()

        infile.close()

        meta_mac = (file_mac[0] ^ file_mac[1], file_mac[2] ^ file_mac[3])

        attributes = {'n': filename}
        enc_attributes = enc_attr(attributes, ul_key[:4])
        key = [ul_key[0] ^ ul_key[4], ul_key[1] ^ ul_key[5], ul_key[2] ^ meta_mac[0], ul_key[3] ^ meta_mac[1], ul_key[4], ul_key[5], meta_mac[0], meta_mac[1]]
        return self.api_req({'a': 'p', 't': target, 'n': [{'h': completion_handle, 't': 0, 'a': base64urlencode(enc_attributes), 'k': a32_to_base64(encrypt_key(key, self.master_key))}]})
コード例 #4
0
    def uploadfile(self, src_path, target, filename):
        infile = open(src_path, 'rb')
        size = os.path.getsize(src_path)
        ul_url = self.api_req({'a': 'u', 's': size})['p']

        ul_key = [random.randint(0, 0xFFFFFFFF) for _ in xrange(6)]
        encryptor = AES.new(
            a32_to_str(ul_key[:4]),
            AES.MODE_CTR,
            counter=Counter.new(
                128, initial_value=((ul_key[4] << 32) + ul_key[5]) << 64))

        file_mac = [0, 0, 0, 0]
        for chunk_start, chunk_size in sorted(get_chunks(size).items()):
            chunk = infile.read(chunk_size)

            chunk_mac = [ul_key[4], ul_key[5], ul_key[4], ul_key[5]]
            for i in xrange(0, len(chunk), 16):
                block = chunk[i:i + 16]
                if len(block) % 16:
                    block += '\0' * (16 - len(block) % 16)
                block = str_to_a32(block)
                chunk_mac = [
                    chunk_mac[0] ^ block[0], chunk_mac[1] ^ block[1],
                    chunk_mac[2] ^ block[2], chunk_mac[3] ^ block[3]
                ]
                chunk_mac = aes_cbc_encrypt_a32(chunk_mac, ul_key[:4])

            file_mac = [
                file_mac[0] ^ chunk_mac[0], file_mac[1] ^ chunk_mac[1],
                file_mac[2] ^ chunk_mac[2], file_mac[3] ^ chunk_mac[3]
            ]
            file_mac = aes_cbc_encrypt_a32(file_mac, ul_key[:4])

            chunk = encryptor.encrypt(chunk)
            outfile = urllib.urlopen(ul_url + "/" + str(chunk_start), chunk)
            completion_handle = outfile.read()
            outfile.close()

        infile.close()

        meta_mac = (file_mac[0] ^ file_mac[1], file_mac[2] ^ file_mac[3])

        attributes = {'n': filename}
        enc_attributes = enc_attr(attributes, ul_key[:4])
        key = [
            ul_key[0] ^ ul_key[4], ul_key[1] ^ ul_key[5],
            ul_key[2] ^ meta_mac[0], ul_key[3] ^ meta_mac[1], ul_key[4],
            ul_key[5], meta_mac[0], meta_mac[1]
        ]
        return self.api_req({
            'a':
            'p',
            't':
            target,
            'n': [{
                'h': completion_handle,
                't': 0,
                'a': base64urlencode(enc_attributes),
                'k': a32_to_base64(encrypt_key(key, self.master_key))
            }]
        })