Module grin_core::libtx::aggsig

Aggregated Signature functions used in the creation of Grin transactions. This module interfaces into the underlying Rust Aggsig library

Functions

add_signatures	Adds signatures
calculate_partial_sig	Calculates a partial signature given the signer's secure key, the sum of all public nonces and (optionally) the sum of all public keys.
create_secnonce	Creates a new secure nonce (as a SecretKey), guaranteed to be usable during aggsig creation.
sign_from_key_id	Creates a single-signer aggsig signature from a key id. Generally, this function is used to create transaction kernel signatures for coinbase outputs. Returns Ok(Signature) if the signature is valid, or a Signature ErrorKind otherwise
sign_single	Just a simple sig, creates its own nonce if not provided
sign_with_blinding	Just a simple sig, creates its own nonce, etc
verify_completed_sig	Verifies a completed (summed) signature, which must include the message and pubkey sum values that are used during signature creation time to create 'e' Returns Ok(()) if the signature is valid, or a Signature ErrorKind otherwise
verify_partial_sig	Verifies a partial signature from a public key. All nonce and public key sum values must be identical to those provided in the call to calculate_partial_sig. Returns Result::Ok if the signature is valid, or a Signature ErrorKind otherwise
verify_single	Verifies an aggsig signature
verify_single_from_commit	Simple verification a single signature from a commitment. The public key used to verify the signature is derived from the commit. Returns Ok(()) if the signature is valid, or a Signature ErrorKind otherwise