dotnet-EasyPasswordGenerator

.net lib to generated passwords with special requirements very easy

Easy generation and validation of passwords with one ore more of the following requirements:

• MinLength
• MaxLength
• AllowLowerCase
• RequireLowerCase
• AllowUpperCase
• RequireUpperCase
• AllowNumbers
• RequireNumber
• AllowSpecial
• RequireSpecial
• MaxConsecutiveSameCharacter
• DisableConfusableCharacters
• ForbiddenSequences
  • e.g. dont allow username in password

install

install via nuget: Weltmeyer.EasyPasswordGenerator

dotnet add package Weltmeyer.EasyPasswordGenerator

https://www.nuget.org/packages/Weltmeyer.EasyPasswordGenerator

usage

Using parameters

var pass = PasswordGenerator.Generate(minLength: 10, maxLength: 15) //generates a Password with 10 to 15 characters, can container all characters

Using Configuration

 var cfgGenerator = new PasswordConfiguration
        {
            MinLength = 10, MaxLength = 20,
            AllowSpecial = false,
            AllowNumbers = false,
            AllowUpperCase = false,
            AllowLowerCase = true,
            ForbiddenSequences = new[] { "aa", "bb", "cc" }
        };
 var pass = PasswordGenerator.Generate(cfgGenerator);

Validate password requirements:

    [Test]
    public void TestFail_MissingNumber()
    {
        var str = "abcdefgh";
        var validationResult = PasswordGenerator.Validate(str.ToCharArray(), new PasswordConfiguration
        {
            RequireNumber = true,
        });
        Assert.False(validationResult.Success);
        Assert.Contains(PasswordValidationResult.EnmValidationError.NumbersRequired, validationResult.ValidationErrors);
    }

You can find more examples in the unit-tests