diff options
Diffstat (limited to 'lib/blocks.go')
| -rw-r--r-- | lib/blocks.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/blocks.go b/lib/blocks.go index 9b184d1..c4d8be1 100644 --- a/lib/blocks.go +++ b/lib/blocks.go @@ -112,15 +112,15 @@ func Pkcs7Padding(in []byte, k int) []byte { } // Removes PKCS#7 Padding from input `in` -func Pkcs7PaddingUndo(in []byte) []byte { +func Pkcs7PaddingUndo(in []byte) ([]byte, error) { pd := in[len(in)-1] // padding character pl := int(pd) // padding length // Validate for i := len(in) - 1; i >= len(in)-pl; i-- { if in[i] != pd { - panic("input is not pkcs#7 padded!") + return []byte{}, CPError{"input is not pkcs#7 padded"} } } - return in[0:(len(in) - pl)] + return in[0:(len(in) - pl)], nil } |