threshcrypto

type DummyCrypto struct {
	// The only accepted signature share suffix
	DummySigShareSuffix []byte

	// Current node ID
	Self t.NodeID

	// The only accepted full signature
	DummySigFull []byte
}

type MirModule struct {
	// contains filtered or unexported fields
}

type TBLSInst struct {
	// contains filtered or unexported fields
}

type ThreshCrypto interface {
	// SignShare signs the provided data and returns the resulting signature share.
	// The data to be signed is the concatenation of all the passed byte slices.
	// A signature share produced by SignShare is verifiable using VerifyShare.
	// After obtaining signature shares from T group members, the full signature can be constructed with Recover.
	// Returns the signature (and a nil error) on success, and a non-nil error otherwise.
	SignShare(data [][]byte) ([]byte, error)

	// VerifyShare verifies that a signature share is valid for the given data and node (if applicable).
	// Returns nil on success (i.e., if the given signature share is valid) and a non-nil error otherwise.
	VerifyShare(data [][]byte, signatureShare []byte, nodeID t.NodeID) error

	// Recover constructs a full signature from signature shares over data.
	// All signature shares MUST have been previously verified with VerifyShare, and must come from
	// different nodes.
	// Returns the full signature (and a nil error) on success and a non-nil error otherwise.
	// Signatures returned by Recover are guaranteed to be valid.
	Recover(data [][]byte, signatureShares [][]byte) ([]byte, error)

	// VerifyFull verifies a full signature from the group over data.
	// Returns nil on success (i.e., if the given signature is valid) and a non-nil error otherwise.
	VerifyFull(data [][]byte, signature []byte) error
}