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| CodeSonar® 9.0p0 Hot Tips | CONFIDENTIAL | CodeSecure Inc |
A weak, possibly reversible initialization vector is written to a field.
Some cryptography algorithms are nowadays considered as outdated and unsafe or actually broken, since they are too easy to decode. This checker identifies uses of unsafe algorithms for cryptography.
| クラス名 | Weak Initialization Vector Field (C#) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 日本語クラス名 | Weak Initialization Vector Field (C#) | |||||||||
| クラス分類 | セキュリティ (security) | |||||||||
| ニーモニック | CSHARP.CRYPTO.WIVF | |||||||||
| カテゴリー |
|
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| 対応言語 | C# で利用可能です。 |
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| 有効/無効設定 | このワーニングクラスのチェックはデフォルトで有効になっています。チェックを無効にするにはプロジェクト設定ファイル
（configuration file）に以下の WARNING_FILTER ルールを追加してください。
WARNING_FILTER += discard class="Weak Initialization Vector Field (C#)" |
English (en)
using System;
using System.Security.Cryptography;
namespace TestNameSpace
{
class MyAlgorithm : SymmetricAlgorithm
{
public override void GenerateIV()
{
IVValue = new byte[15]; // 'Weak Initialization Vector Field (C#)'
// warning issued here
}
// ... other declared methods
}
}
Generate a secure random Initialization Vector.
設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。