overlaps

1 files changed, 4 insertions, 4 deletions

diff --git a/cipher.go b/cipher.go
index 89441c3..278172d 100644
--- a/cipher.go
+++ b/cipher.go
@@ -44,8 +44,8 @@ func (c *rabbitPoly1305) NonceSize() int { return c.noncesize }
 func (c *rabbitPoly1305) sealRabbit(dst, nonce, plaintext, ad []byte) []byte {
 	ret, out := headtail(dst, len(plaintext)+poly1305.TagSize)
 	ciphertext, tag := out[:len(plaintext)], out[len(plaintext):]
-	if inexactOverlap(out, plaintext) {
-		panic("rabaead: invalid buffer memory overlap") //should never happen
+	if rabbitio.InexactOverlap(out, plaintext) {
+		panic("rabaead: invalid buffer memory overlap")
 	}
 
 	var polyKey [polykeylen]byte
@@ -91,8 +91,8 @@ func (c *rabbitPoly1305) openRabbit(dst, nonce, ciphertext, ad []byte) ([]byte,
 	writeUint64(p, len(ciphertext))
 
 	ret, out := headtail(dst, len(ciphertext))
-	if inexactOverlap(out, ciphertext) {
-		panic("rabaead: invalid buffer memory overlap") //should never happen
+	if rabbitio.InexactOverlap(out, ciphertext) {
+		panic("rabaead: invalid buffer memory overlap")
 	}
 
 	// check data integrity