BypassMaybeReadByte returns a new io.Reader that can be used to make functions inside go's crypto library that take a source of randomness from an io.Reader behave deterministically for the same sequence of random bytes, even where they make use of the internal randutil.MaybeReadByte function to introduce non-determinism.

DecodePEMType decodes a PEM block with the specified type from the supplied data.

InSlice determines whether a value is contained in the provided slice, using the specified checker.

MustDecodePEMType decodes a PEM block with the specified type from the supplied data.

ParseCertificate parses a certificate from the supplied DER encoded data.

ParsePKCS1PrivateKey parses a RSA private key from the supplied DER encoded data.

ConvertibleTo determines whether a value of one type can be converted to another type.

ErrorIs determines whether any error in a chain has a specific value, using xerrors.Is For example: c.Check(err, ErrorIs, io.EOF).

IsFalse determines whether a boolean value is false.

MockArgon2KDF provides a mock implementation of secboot.Argon2KDF that isn't memory intensive.