diff options
author | Niall Sheridan <nsheridan@gmail.com> | 2019-07-07 21:33:44 +0100 |
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committer | Niall Sheridan <nsheridan@gmail.com> | 2019-07-07 21:33:44 +0100 |
commit | 8c12c6939aab9106db14ec2d11d983bc5b29fb2c (patch) | |
tree | f9dc8a7d167c6355e47a65c52d4eb7b9ea03e6c8 /vendor/golang.org/x/crypto/internal/subtle | |
parent | 0bd454cc448b812da6c693b451d86ff4cadbb6b2 (diff) |
Switch to modules
Diffstat (limited to 'vendor/golang.org/x/crypto/internal/subtle')
-rw-r--r-- | vendor/golang.org/x/crypto/internal/subtle/aliasing.go | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing.go deleted file mode 100644 index f38797b..0000000 --- a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build !appengine - -// Package subtle implements functions that are often useful in cryptographic -// code but require careful thought to use correctly. -package subtle // import "golang.org/x/crypto/internal/subtle" - -import "unsafe" - -// AnyOverlap reports whether x and y share memory at any (not necessarily -// corresponding) index. The memory beyond the slice length is ignored. -func AnyOverlap(x, y []byte) bool { - return len(x) > 0 && len(y) > 0 && - uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) && - uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1])) -} - -// InexactOverlap reports whether x and y share memory at any non-corresponding -// index. The memory beyond the slice length is ignored. Note that x and y can -// have different lengths and still not have any inexact overlap. -// -// InexactOverlap can be used to implement the requirements of the crypto/cipher -// AEAD, Block, BlockMode and Stream interfaces. -func InexactOverlap(x, y []byte) bool { - if len(x) == 0 || len(y) == 0 || &x[0] == &y[0] { - return false - } - return AnyOverlap(x, y) -} |