client.keys.ecdsa module¶
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class
factom_did.client.keys.ecdsa.
ECDSASecp256k1Key
(public_key=None, private_key=None)¶ Bases:
object
Representation of an ECDSASecp256k1 key. Instances of this class allow signing of messages and signature verification, as well as key creation and derivation of a public key from a private key.
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ON_CHAIN_PUB_KEY_NAME
= 'publicKeyBase58'¶
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get_public_key_on_chain_repr
()¶
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private_key
¶
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public_key
¶
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sign
(message, hash_f=<built-in function openssl_sha256>)¶ Signs a message with the existing private key and signature type.
The message is hashed before being signed, with the provided hash function. The default hash function used is SHA-256.
Parameters: - message (bytes) – The message to sign.
- hash_f (function, optional) – The hash function used to compute the digest of the message before signing it.
Returns: The bytes of the signatures.
Return type: bytes
Raises: AssertionError
– If the supplied message is not bytes, or if a private key has not been specified.
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verify
(message, signature, hash_f=<built-in function openssl_sha256>)¶ Verifies the signature of the given message
Parameters: - message (bytes) – The (allegedly) signed message.
- signature (bytes) – The signature to verify.
- hash_f (function, optional) – The hash function used to compute the digest of the message.
Returns: True if the signature is successfully verified, False otherwise.
Return type: bool
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