Author Archives: whitebat 199

AWS KMS to sign messages – trouble using python’s ecdsa lib when getting the verifiying key [migrated]

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I’m signing my messages using my code below:
def sign_msg_hash(self, msg_hash: HexBytes):
signature = self._kms_client.sign(
KeyId=self._key_id,
Message=msg_hash,
MessageType="DIGEST",
… Continue reading AWS KMS to sign messages – trouble using python’s ecdsa lib when getting the verifiying key [migrated]→

How do centralized crypto exchanges store seed phrases and users’ private keys?

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Say I’m trying to develop a CEX, hence I will hold custody of users’ keys. How would I go about doing that and ensuring safety and security?
From what I know, I can generate the users’ keys from a seed phrase and store the path used to gen… Continue reading How do centralized crypto exchanges store seed phrases and users’ private keys?→