// ContainsReservedChars - returns whether the input string contains reserved characters.
func ContainsReservedChars(s string) bool {
	return strings.ContainsAny(s, reservedChars)
}

// IsAccessKeyValid - validate access key for right length.
func IsAccessKeyValid(accessKey string) bool {
	return len(accessKey) >= accessKeyMinLen
}

// IsSecretKeyValid - validate secret key for right length.
func IsSecretKeyValid(secretKey string) bool {