state. Sum(b []byte) []byte // Reset resets the Hash to its initial state. Reset() // Size returns the number of bytes Sum will return. Size() int // BlockSize returns the hash's underlying block size. // The Write method must be able to accept any amount // of data, but it may operate more efficiently if all writes // are a multiple of the block size. BlockSize() int } golang.org/fips140@v1.0.0/fips140/v1.0.0/hkdf/cast.go // Copyright 2024 The Go Authors. All rights reserved. // Use of this source...