From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- .../sandbox/chromium/base/unguessable_token.cc | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 security/sandbox/chromium/base/unguessable_token.cc (limited to 'security/sandbox/chromium/base/unguessable_token.cc') diff --git a/security/sandbox/chromium/base/unguessable_token.cc b/security/sandbox/chromium/base/unguessable_token.cc new file mode 100644 index 0000000000..973b4167bd --- /dev/null +++ b/security/sandbox/chromium/base/unguessable_token.cc @@ -0,0 +1,39 @@ +// Copyright 2016 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "base/unguessable_token.h" + +#include "base/format_macros.h" +#include "base/no_destructor.h" +#include "base/rand_util.h" +#include "base/strings/stringprintf.h" + +namespace base { + +UnguessableToken::UnguessableToken(const base::Token& token) : token_(token) {} + +// static +UnguessableToken UnguessableToken::Create() { + return UnguessableToken(Token::CreateRandom()); +} + +// static +const UnguessableToken& UnguessableToken::Null() { + static const NoDestructor null_token; + return *null_token; +} + +// static +UnguessableToken UnguessableToken::Deserialize(uint64_t high, uint64_t low) { + // Receiving a zeroed out UnguessableToken from another process means that it + // was never initialized via Create(). Treat this case as a security issue. + DCHECK(!(high == 0 && low == 0)); + return UnguessableToken(Token{high, low}); +} + +std::ostream& operator<<(std::ostream& out, const UnguessableToken& token) { + return out << "(" << token.ToString() << ")"; +} + +} // namespace base -- cgit v1.2.3