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| author | Ian Lance Taylor <iant@golang.org> | 2018-09-24 21:46:21 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2018-09-24 21:46:21 +0000 |
| commit | dd931d9b48647e898dc80927c532ae93cc09e192 (patch) | |
| tree | 71be2295cd79b8a182f6130611658db8628772d5 /libgo/go/crypto/cipher/cfb.go | |
| parent | 779d8a5ad09b01428726ea5a0e6c87bd9ac3c0e4 (diff) | |
| download | gcc-dd931d9b48647e898dc80927c532ae93cc09e192.zip gcc-dd931d9b48647e898dc80927c532ae93cc09e192.tar.gz gcc-dd931d9b48647e898dc80927c532ae93cc09e192.tar.bz2 | |
libgo: update to Go 1.11
Reviewed-on: https://go-review.googlesource.com/136435
gotools/:
* Makefile.am (mostlyclean-local): Run chmod on check-go-dir to
make sure it is writable.
(check-go-tools): Likewise.
(check-vet): Copy internal/objabi to check-vet-dir.
* Makefile.in: Rebuild.
From-SVN: r264546
Diffstat (limited to 'libgo/go/crypto/cipher/cfb.go')
| -rw-r--r-- | libgo/go/crypto/cipher/cfb.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libgo/go/crypto/cipher/cfb.go b/libgo/go/crypto/cipher/cfb.go index 9b4eebf..80c9bc2 100644 --- a/libgo/go/crypto/cipher/cfb.go +++ b/libgo/go/crypto/cipher/cfb.go @@ -6,6 +6,8 @@ package cipher +import "crypto/internal/subtle" + type cfb struct { b Block next []byte @@ -16,6 +18,12 @@ type cfb struct { } func (x *cfb) XORKeyStream(dst, src []byte) { + if len(dst) < len(src) { + panic("crypto/cipher: output smaller than input") + } + if subtle.InexactOverlap(dst[:len(src)], src) { + panic("crypto/cipher: invalid buffer overlap") + } for len(src) > 0 { if x.outUsed == len(x.out) { x.b.Encrypt(x.out, x.next) |