Function padLeft

admin/pkg/authtoken/authtoken.go:186–194

padLeft pads a byte slice with zeros on the left such that its length is n. If the slice is already longer than n, it is returned as is.

(b []byte, n int)

// padLeft pads a byte slice with zeros on the left such that its length is n.
// If the slice is already longer than n, it is returned as is.
func padLeft(b []byte, n int) []byte {
	if len(b) >= n {
		return b
	}

	padded := make([]byte, n)
	copy(padded[n-len(b):], b)
	return padded
}