Cryptography
Some constructions are only available in tests, not in smart contracts.
sp.test_account(seed)
Creating a deterministic key-pair from a seed string:
python
# seed is `Alice`
alice = sp.test_account("Alice")
It produces an object with the following properties:
| Property | Type | Description |
|---|---|---|
| alice.address | sp.TAddress | Gives the public-key-hash |
| alice.public_key_hash | sp.TKeyHash | Gives the public-key-hash |
| alice.public_key | sp.TKey | Gives the public-key |
| alice.secret_key | sp.TString | Gives the secret-key |
sp.make_signature(secret_key, message, message_format = 'Raw')
Forges a signature compatible with sp.check_signature(...).
message_format field accepts two values:
- Hex in which case the message will be interpreted as an hexadecimal string;
- Raw (the default) in which case the message is a sp.TBytes value (usually the result of an
sp.packcall).
INFO
sp.test_account methods and sp.make_signature are not available for compilation to Michelson (a smart contract cannot manipulate secret keys).