Cargo Features

[dependencies]
sha1-checked = { version = "0.10.0", default-features = false, features = ["std", "oid", "zeroize"] }
default = oid, std

These default features are set whenever sha1-checked is added without default-features = false somewhere in the dependency tree.

std default

Enables std of digest and sha1

oid default

Enable OID support

Enables oid of digest and sha1

zeroize

Enables zeroize