def time_sign(self):
wif = "5J4KCbg1G3my9b9hCaQXnHSm6vrwW9xQTJS6ZciW2Kek7cCkCEk"
message = '576b2c99564392ed50e36c80654224953fdf8b5259528a1a4342c19be2da9b133c44429ac2be4d5dd588ec28e97015c34db80b7e8d8915e023c2501acd3eafe0'
signature = ecda.sign_message(message, wif)
message = 'foo'
signature = ecda.sign_message(message, wif)
message = 'This is a short Message'
signature = ecda.sign_message(message, wif)
message = '1234567890'
signature = ecda.sign_message(message, wif)
def sign(self, account=None, **kwargs):
""" Sign a message with an account's memo key
:param str account: (optional) the account that owns the bet
(defaults to ``default_account``)
:returns: the signed message encapsulated in a known format
"""
if not account:
if "default_account" in config:
account = config["default_account"]
if not account:
raise ValueError("You need to provide an account")
# Data for message
account = Account(account, dpay_instance=self.dpay)
info = self.dpay.info()
meta = dict(timestamp=info["time"],
block=info["head_block_number"],
memokey=account["memo_key"],
account=account["name"])
# wif key
wif = self.dpay.wallet.getPrivateKeyForPublicKey(account["memo_key"])
# signature
message = self.message.strip()
signature = hexlify(
sign_message(SIGNED_MESSAGE_META.format(**locals()),
wif)).decode("ascii")
message = self.message
return SIGNED_MESSAGE_ENCAPSULATED.format(MESSAGE_SPLIT=MESSAGE_SPLIT,
**locals())
def test_sign_message_cross(self, module):
if module == "cryptography":
if not ecda.CRYPTOGRAPHY_AVAILABLE:
return
ecda.SECP256K1_MODULE = "cryptography"
elif module == "secp256k1":
if not ecda.SECP256K1_AVAILABLE:
return
ecda.SECP256K1_MODULE = "secp256k1"
pub_key = py23_bytes(repr(PrivateKey(wif).pubkey), "latin")
signature = ecda.sign_message("Foobar", wif)
ecda.SECP256K1_MODULE = "ecdsa"
pub_key_sig = ecda.verify_message("Foobar", signature)
self.assertEqual(hexlify(pub_key_sig), pub_key)
signature = ecda.sign_message("Foobar", wif)
ecda.SECP256K1_MODULE = module
pub_key_sig = ecda.verify_message("Foobar", signature)
self.assertEqual(hexlify(pub_key_sig), pub_key)
def upload(self, image, account, image_name=None):
""" Uploads an image
:param str/bytes image: path to the image or image in bytes representation which should be uploaded
:param str account: Account which is used to upload. A posting key must be provided.
:param str image_name: optional
.. code-block:: python
from dpaycli import DPay
from dpaycli.imageuploader import ImageUploader
stm = DPay(keys=["5xxx"]) # private posting key
iu = ImageUploader(dpay_instance=stm)
iu.upload("path/to/image.png", "account_name") # "private posting key belongs to account_name
"""
account = Account(account, dpay_instance=self.dpay)
if "posting" not in account:
account.refresh()
if "posting" not in account:
raise AssertionError("Could not access posting permission")
for authority in account["posting"]["key_auths"]:
posting_wif = self.dpay.wallet.getPrivateKeyForPublicKey(
authority[0])
if isinstance(image, string_types):
image_data = open(image, 'rb').read()
elif isinstance(image, io.BytesIO):
image_data = image.read()
else:
image_data = image
message = py23_bytes(self.challenge, "ascii") + image_data
signature = sign_message(message, posting_wif)
signature_in_hex = hexlify(signature).decode("ascii")
files = {image_name or 'image': image_data}
url = "%s/%s/%s" % (self.base_url, account["name"], signature_in_hex)
r = requests.post(url, files=files)
return r.json()
def _request(self, account, method, params, key):
"""Assemble the request, hash it, sign it and send it to the Conveyor
instance. Returns the server response as JSON.
:param str account: account name
:param str method: Conveyor method name to be called
:param dict params: request parameters as `dict`
:param str key: DPay posting key for signing
"""
params_bytes = py23_bytes(json.dumps(params), self.ENCODING)
params_enc = base64.b64encode(params_bytes).decode(self.ENCODING)
timestamp = datetime.utcnow().strftime(self.TIMEFORMAT)[:-3] + "Z"
nonce_int = random.getrandbits(64)
nonce_bytes = struct.pack('>Q', nonce_int) # 64bit ULL, big endian
nonce_str = "%016x" % (nonce_int)
message = self.prehash_message(timestamp, account, method,
params_enc, nonce_bytes)
signature = sign_message(message, key)
signature_hex = hexlify(signature).decode(self.ENCODING)
request = {
"jsonrpc": "2.0",
"id": self.id,
"method": method,
"params": {
"__signed": {
"account": account,
"nonce": nonce_str,
"params": params_enc,
"signatures": [signature_hex],
"timestamp": timestamp
}
}
}
r = requests.post(self.url, data=json.dumps(request))
self.id += 1
return r.json()