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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/web_package/signed_web_bundles/ed25519_public_key.h"
#include <algorithm>
#include "base/strings/stringprintf.h"
#include "base/types/expected.h"
#include "third_party/boringssl/src/include/openssl/curve25519.h"
namespace web_package {
static_assert(Ed25519PublicKey::kLength == ED25519_PUBLIC_KEY_LEN);
Ed25519PublicKey::Ed25519PublicKey(const Ed25519PublicKey&) = default;
Ed25519PublicKey& Ed25519PublicKey::operator=(const Ed25519PublicKey&) =
default;
Ed25519PublicKey::Ed25519PublicKey(Ed25519PublicKey&&) noexcept = default;
Ed25519PublicKey& Ed25519PublicKey::operator=(Ed25519PublicKey&&) noexcept =
default;
Ed25519PublicKey::~Ed25519PublicKey() = default;
base::expected<Ed25519PublicKey, std::string> Ed25519PublicKey::Create(
base::span<const uint8_t> key) {
auto sized_key = key.to_fixed_extent<kLength>();
if (!sized_key) {
return base::unexpected(base::StringPrintf(
"The Ed25519 public key does not have the correct length. Expected %zu "
"bytes, but received %zu bytes.",
kLength, key.size()));
}
return Create(*sized_key);
}
Ed25519PublicKey Ed25519PublicKey::Create(
base::span<const uint8_t, kLength> key) {
std::array<uint8_t, kLength> bytes;
std::ranges::copy(key, bytes.begin());
return Ed25519PublicKey(std::move(bytes));
}
Ed25519PublicKey::Ed25519PublicKey(std::array<uint8_t, kLength> bytes)
: bytes_(std::move(bytes)) {}
} // namespace web_package
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