aboutsummaryrefslogtreecommitdiff
path: root/libgo/go/crypto/cipher/ctr.go
diff options
context:
space:
mode:
authorIan Lance Taylor <ian@gcc.gnu.org>2011-03-30 15:33:16 +0000
committerIan Lance Taylor <ian@gcc.gnu.org>2011-03-30 15:33:16 +0000
commitf72f4169133572cf62f1e872c5657cdbc4d5de2c (patch)
tree9382d76e5dc68294cdf3c4f2c03a9f61b44fb014 /libgo/go/crypto/cipher/ctr.go
parentf2034d064c29d9620c5562b2b5b517bdc6c7a672 (diff)
downloadgcc-f72f4169133572cf62f1e872c5657cdbc4d5de2c.zip
gcc-f72f4169133572cf62f1e872c5657cdbc4d5de2c.tar.gz
gcc-f72f4169133572cf62f1e872c5657cdbc4d5de2c.tar.bz2
Update to current Go library.
From-SVN: r171732
Diffstat (limited to 'libgo/go/crypto/cipher/ctr.go')
-rw-r--r--libgo/go/crypto/cipher/ctr.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/libgo/go/crypto/cipher/ctr.go b/libgo/go/crypto/cipher/ctr.go
index 04436ec..147b74f 100644
--- a/libgo/go/crypto/cipher/ctr.go
+++ b/libgo/go/crypto/cipher/ctr.go
@@ -22,6 +22,10 @@ type ctr struct {
// NewCTR returns a Stream which encrypts/decrypts using the given Block in
// counter mode. The length of iv must be the same as the Block's block size.
func NewCTR(block Block, iv []byte) Stream {
+ if len(iv) != block.BlockSize() {
+ panic("cipher.NewCTR: iv length must equal block size")
+ }
+
return &ctr{
b: block,
ctr: dup(iv),