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authorJoe Kyo <xunianzu@gmail.com>2017-09-06 10:31:03 +0100
committerFilippo Valsorda <hi@filippo.io>2017-09-06 14:53:44 +0000
commit16edf0b1f7401df07e0d2f96c8b97516e50cffd9 (patch)
tree8032f353c26ce283f32f98d483fbf99fa46462e0
parent6c102e141c5858d1b900afad8dd616370f6091bb (diff)
downloadgo-16edf0b1f7401df07e0d2f96c8b97516e50cffd9.tar.xz
crypto/cipher: panic when IV length does not equal block size in NewOFB
Functions like NewCBCDecrypter, NewCBCEncrypter, NewCFBDecrypter, NewCFBEncrypter and NewCTR all panic when IV length does not equal block size. This commit changes NewOFB to panic too, instead of returning nil silently. Change-Id: Ic4d3ebfad79bb0cf4759fa1c1a400c1a8d043490 Reviewed-on: https://go-review.googlesource.com/61850 Reviewed-by: Filippo Valsorda <hi@filippo.io> Run-TryBot: Filippo Valsorda <hi@filippo.io> TryBot-Result: Gobot Gobot <gobot@golang.org>
-rw-r--r--src/crypto/cipher/ofb.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/crypto/cipher/ofb.go b/src/crypto/cipher/ofb.go
index e86ebcb237..7b35f8995c 100644
--- a/src/crypto/cipher/ofb.go
+++ b/src/crypto/cipher/ofb.go
@@ -19,7 +19,7 @@ type ofb struct {
func NewOFB(b Block, iv []byte) Stream {
blockSize := b.BlockSize()
if len(iv) != blockSize {
- return nil
+ panic("cipher.NewOFB: IV length must equal block size")
}
bufSize := streamBufferSize
if bufSize < blockSize {