bit := (src >> n) & 1
		block |= bit << uint((len(permutation)-1)-position)
	}
	return
}

func initFeistelBox() {
	for s := range sBoxes {
		for i := 0; i < 4; i++ {
			for j := 0; j < 16; j++ {
				f := uint64(sBoxes[s][i][j]) << (4 * (7 - uint(s)))
				f = permuteBlock(f, permutationFunction[:])

				// Row is determined by the 1st and 6th bit.
				// Column is the middle four bits.

	41, 50, 35, 46, 33, 37, 44, 52,
	30, 48, 40, 49, 29, 36, 43, 54,
	15, 4, 25, 19, 9, 1, 26, 16,
	5, 11, 23, 8, 12, 7, 17, 0,
	22, 3, 10, 14, 6, 20, 27, 24,
}

// 8 S-boxes composed of 4 rows and 16 columns
// Used in the DES cipher function
var sBoxes = [8][4][16]uint8{
	// S-box 1
	{
		{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
		{0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},

	"error": log.ErrorLevel,
	"none":  log.NoneLevel,
}

// ScopeTopic returns a ControlZ topic that allows visualization of process logging scopes.
func ScopeTopic() fw.Topic {
	return scopeTopic{}
}

func (scopeTopic) Title() string {
	return "Logging Scopes"
}

func (scopeTopic) Prefix() string {
	return "scope"
}

func getScopeInfo(s *log.Scope) *scopeInfo {
	return &scopeInfo{

//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.

package scopes

import "istio.io/istio/pkg/log"

// Framework is the general logging scope for the framework.

                        * 👉 `security_scopes` 🔢 ✔️ 🏠 `scopes` ⏮️ `list` ⚗ 🌐 👫 ↔ 📣 🔛,:
                            * `security_scopes.scopes` 🔜 🔌 `["me", "items"]` *➡ 🛠️* `read_own_items`.
                            * `security_scopes.scopes` 🔜 🔌 `["me"]` *➡ 🛠️* `read_users_me`, ↩️ ⚫️ 📣 🔗 `get_current_active_user`.

//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.

package scopes

import (
	"istio.io/istio/cni/pkg/constants"
	"istio.io/istio/pkg/log"
)

// Required to get global logging to work
var (
	CNIAgent  = log.RegisterScope(constants.CNIAgentLogScope, "CNI agent scope")

    Aber OAuth2 mit Scopes kann bequem in Ihre API (mit OpenAPI) und deren API-Dokumentation integriert werden.

    Dennoch, verwenden Sie solche Scopes oder andere Sicherheits-/Autorisierungsanforderungen in Ihrem Code so wie Sie es möchten.

    In vielen Fällen kann OAuth2 mit Scopes ein Overkill sein.

    Aber wenn Sie wissen, dass Sie es brauchen oder neugierig sind, lesen Sie weiter.

## OAuth2-Scopes und OpenAPI

    Nevertheless, you still enforce those scopes, or any other security/authorization requirement, however you need, in your code.

    In many cases, OAuth2 with scopes can be an overkill.

    But if you know you need it, or you are curious, keep reading.

## OAuth2 scopes and OpenAPI

{{ define "content" }}
<p>
        Logging for this process is organized in scopes. Each scope has different
        output controls which determine how much and what kind of logging is produced
        by the scope.
</p>

<table>
    <thead>
        <tr>
            <th>Scope</th>
            <th>Description</th>
            <th>Output Level</th>
            <th>Stack Trace Level</th>
            <th>Log Callers?</th>
        </tr>

                        * `security_scopes` 参数的属性 `scopes` 是包含上述声明的所有作用域的**列表**，因此：
                            * `security_scopes.scopes` 包含用于*路径操作*的 `["me", "items"]`
                            * `security_scopes.scopes` 包含*路径操作* `read_users_me` 的 `["me"]`，因为它在依赖项里被声明
                            * `security_scopes.scopes` 包含用于*路径操作* `read_system_status` 的 `[]`（空列表），并且它的依赖项 `get_current_user` 也没有声明任何 `scope`