// Expects key type of []byte for both signing and validation
type SigningMethodHMAC struct {
	Name       string
	Hash       crypto.Hash
	HasherPool sync.Pool
}

// Specific instances for HS256, HS384, HS512
var (
	SigningMethodHS256 *SigningMethodHMAC
	SigningMethodHS384 *SigningMethodHMAC
	SigningMethodHS512 *SigningMethodHMAC
)

const base64BufferSize = 64 * humanize.KiByte

var (