- ecdsa_sign(+Key, +Data, -Signature, +Options)
- Create an ECDSA signature for Data with EC private key Key.
Among the most common cases is signing a hash that was created
with crypto_data_hash/3 or other predicates of this library. For
this reason, the default encoding (
hex) assumes that Data is
an atom, string, character list or code list representing the
data in hexadecimal notation. See rsa_sign/4 for an example.
Options:
- encoding(+Encoding)
- Encoding to use for Data. Default is
hex. Alternatives
are octet, utf8 and text.