diff options
Diffstat (limited to 'chacha20poly1305/chacha20poly1305_amd64.go')
| -rw-r--r-- | chacha20poly1305/chacha20poly1305_amd64.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/chacha20poly1305/chacha20poly1305_amd64.go b/chacha20poly1305/chacha20poly1305_amd64.go index 50695a1..b850e77 100644 --- a/chacha20poly1305/chacha20poly1305_amd64.go +++ b/chacha20poly1305/chacha20poly1305_amd64.go @@ -56,7 +56,10 @@ func (c *chacha20poly1305) seal(dst, nonce, plaintext, additionalData []byte) [] ret, out := sliceForAppend(dst, len(plaintext)+16) if alias.InexactOverlap(out, plaintext) { - panic("chacha20poly1305: invalid buffer overlap") + panic("chacha20poly1305: invalid buffer overlap of output and input") + } + if alias.AnyOverlap(out, additionalData) { + panic("chacha20poly1305: invalid buffer overlap of output and additional data") } chacha20Poly1305Seal(out[:], state[:], plaintext, additionalData) return ret @@ -73,7 +76,10 @@ func (c *chacha20poly1305) open(dst, nonce, ciphertext, additionalData []byte) ( ciphertext = ciphertext[:len(ciphertext)-16] ret, out := sliceForAppend(dst, len(ciphertext)) if alias.InexactOverlap(out, ciphertext) { - panic("chacha20poly1305: invalid buffer overlap") + panic("chacha20poly1305: invalid buffer overlap of output and input") + } + if alias.AnyOverlap(out, additionalData) { + panic("chacha20poly1305: invalid buffer overlap of output and additional data") } if !chacha20Poly1305Open(out, state[:], ciphertext, additionalData) { for i := range out { |