Lib.rs

Cargo Features

[dependencies]
ink_engine = { version = "5.1.1", default-features = false, features = ["std"] }

default = std

The std feature is set by default whenever ink_engine is added without default-features = false somewhere in the dependency tree.

std default = secp256k1

Enables std of derive_more, ink_primitives, and parity-scale-codec

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

secp256k1 std

Enables secp256k1 ^0.28.2

ECDSA for the off-chain environment.