1 files changed, 3 insertions, 1 deletions
diff --git a/internal/siv_aead/siv_aead.go b/internal/siv_aead/siv_aead.go
index d5df4ac..9b85fde 100644
--- a/internal/siv_aead/siv_aead.go
+++ b/internal/siv_aead/siv_aead.go
@@ -16,13 +16,15 @@ type sivAead struct {
 var _ cipher.AEAD = &sivAead{}
 
 const (
+	// KeyLen is the required key length. The SIV algorithm supports other lengths,
+	// but we only support 64.
 	KeyLen = 64
 )
 
 // New returns a new cipher.AEAD implementation.
 func New(key []byte) cipher.AEAD {
 	if len(key) != KeyLen {
-		// SIV supports more 32, 48 or 64-byte keys, but in gocryptfs we
+		// SIV supports 32, 48 or 64-byte keys, but in gocryptfs we
 		// exclusively use 64.
 		log.Panicf("Key must be %d byte long (you passed %d)", KeyLen, len(key))
 	}