28 lines
1.3 KiB
Python
28 lines
1.3 KiB
Python
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import requests
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import json
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import ecdsa
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import binascii
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def get_btc_ohlc_data(server_url, user_private_key):
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# Load user's ECDSA private key
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user_private_key = ecdsa.SigningKey.from_string(binascii.unhexlify(user_private_key), curve=ecdsa.SECP256k1)
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# Get server public key from endpoint
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server_public_key_hex = requests.get(server_url + "/serverkey").text
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server_public_key = ecdsa.VerifyingKey.from_string(binascii.unhexlify(server_public_key_hex), curve=ecdsa.SECP256k1)
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# Get timestamp
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timestamp = str(int(time.time()))
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# Create signature using user's private key
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signature = binascii.hexlify(user_private_key.sign(bytes(timestamp, 'utf-8'))).decode("utf-8")
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# Create authentication header
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auth_header = {"auth": timestamp + ":" + signature}
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# Make request to server with auth header
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response = requests.get(server_url + "/t", headers=auth_header)
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# Verify server's signature
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server_signature = response.headers["signature"]
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if server_public_key.verify(bytes(server_signature, 'utf-8'), bytes(timestamp, 'utf-8')):
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# If signature is valid, return json data
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return json.loads(response.text)
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else:
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# If signature is invalid, return error message
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return {"error": "Invalid signature from server"}
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