diff options
Diffstat (limited to 'internal/stupidgcm/stupidgcm.go')
| -rw-r--r-- | internal/stupidgcm/stupidgcm.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/internal/stupidgcm/stupidgcm.go b/internal/stupidgcm/stupidgcm.go index 59636c0..82d0323 100644 --- a/internal/stupidgcm/stupidgcm.go +++ b/internal/stupidgcm/stupidgcm.go @@ -10,6 +10,7 @@ import "C" import ( "crypto/cipher" + "fmt" "log" "unsafe" ) @@ -144,12 +145,12 @@ func (g *StupidGCM) Open(dst, iv, in, authData []byte) ([]byte, error) { if len(iv) != ivLen { log.Panicf("Only %d-byte IVs are supported", ivLen) } - if len(in) <= tagLen { - log.Panic("Input data too short") - } if len(g.key) != keyLen { log.Panicf("Wrong key length: %d. Key has been wiped?", len(g.key)) } + if len(in) <= tagLen { + return nil, fmt.Errorf("stupidgcm: input data too short (%d bytes)", len(in)) + } // If the "dst" slice is large enough we can use it as our output buffer outLen := len(in) - tagLen |