package hkdf

Import Path
	vendor/golang.org/x/crypto/hkdf (on go.dev)

Dependency Relation
	imports 4 packages, and imported by one package

Involved Source Files

	  d hkdf.go
		Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation
		Function (HKDF) as defined in RFC 5869.
		
		HKDF is a cryptographic key derivation function (KDF) with the goal of
		expanding limited input keying material into one or more cryptographically
		strong secret keys.
Package-Level Functions (total 3)

	 func Expand(hash func() hash.Hash, pseudorandomKey, info []byte) io.Reader
		Expand returns a Reader, from which keys can be read, using the given
		pseudorandom key and optional context info, skipping the extraction step.
		
		The pseudorandomKey should have been generated by Extract, or be a uniformly
		random or pseudorandom cryptographically strong key. See RFC 5869, Section
		3.3. Most common scenarios will want to use New instead.

	 func Extract(hash func() hash.Hash, secret, salt []byte) []byte
		Extract generates a pseudorandom key for use with Expand from an input secret
		and an optional independent salt.
		
		Only use this function if you need to reuse the extracted key with multiple
		Expand invocations and different context values. Most common scenarios,
		including the generation of multiple keys, should use New instead.

	 func New(hash func() hash.Hash, secret, salt, info []byte) io.Reader
		New returns a Reader, from which keys can be read, using the given hash,
		secret, salt and context info. Salt and info can be nil.

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