diff options
| -rw-r--r-- | securecookie.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/securecookie.go b/securecookie.go index 7dd373d..b1cb144 100644 --- a/securecookie.go +++ b/securecookie.go @@ -474,6 +474,9 @@ func decode(value []byte) ([]byte, error) { // GenerateRandomKey creates a random key with the given length in bytes. // On failure, returns nil. +// +// Callers should explicitly check for the possibility of a nil return, treat +// it as a failure of the system random number generator, and not continue. func GenerateRandomKey(length int) []byte { k := make([]byte, length) if _, err := io.ReadFull(rand.Reader, k); err != nil { |