Do not forget to remove this deprecated code someday. (https://rules.sonarsource.com/csharp/RSPEC-1133)

In externally visible method 'ValidationRuleResult QrIbanRule.Validate(ValidationRuleContext context)', validate parameter 'context' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)

Change the visibility of this constructor to 'private protected'. (https://rules.sonarsource.com/csharp/RSPEC-3442)

Make sure that using "unsafe" is safe here. (https://rules.sonarsource.com/csharp/RSPEC-6640)

Make sure that using this pseudorandom number generator is safe here. (https://rules.sonarsource.com/csharp/RSPEC-2245)

Make sure that using "unsafe" is safe here. (https://rules.sonarsource.com/csharp/RSPEC-6640)

Extract this nested ternary operation into an independent statement. (https://rules.sonarsource.com/csharp/RSPEC-3358)

Do not forget to remove this deprecated code someday. (https://rules.sonarsource.com/csharp/RSPEC-1133)

In externally visible method 'ValidationRuleResult QrIbanRule.Validate(ValidationRuleContext context)', validate parameter 'context' is non-null before using it. If appropriate, throw an 'ArgumentNullException' when the argument is 'null'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1062)