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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Some cryptography algorithms are nowadays considered as outdated and unsafe or actually broken, since they are too easy to decode.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.
| Class Name | Weak Initialization Vector Field (C#) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | |||||||||
| Mnemonic | CSHARP.CRYPTO.WIVF | |||||||||
| Categories |
|
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| Availability | Available for C# only. |
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| Enabling | Checks for this warning class are enabled by
default. To disable them, add the following WARNING_FILTER rule to the
project configuration file.
WARNING_FILTER += discard class="Weak Initialization Vector Field (C#)" |
Japanese (ja)
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.
The following configuration file parameters affect checks for this warning class.