Exemple #1
0
 public static string GeneratePassword(StringOptions options = null)
 {
     options ??= new StringOptions
     {
         RequiredLength          = 10,
         RequireDigit            = true,
         RequireLowercase        = true,
         RequireUppercase        = true,
         RequiredUniqueChars     = 4,
         RequireNonLetterOrDigit = true,
         RequireNonAlphanumeric  = true
     };
     return(GenerateRandomString(options));
 }
Exemple #2
0
        /// <summary>
        /// Generates the random password.
        /// </summary>
        /// <param name="options">The options.</param>
        /// <returns>System.String.</returns>
        public static string GenerateRandomString(StringOptions options = null)
        {
            options ??= new StringOptions
            {
                RequiredLength          = 10,
                RequireDigit            = true,
                RequireLowercase        = true,
                RequireUppercase        = true,
                RequiredUniqueChars     = 4,
                RequireNonLetterOrDigit = true,
                RequireNonAlphanumeric  = true
            };

            var randomChars = new[]
            {
                "ABCDEFGHJKLMNOPQRSTUVWXYZ", // uppercase
                "abcdefghijkmnopqrstuvwxyz", // lowercase
                "0123456789",                // digits
                "!@$?_-"                     // non-alphanumeric
            };

            // Using our private randomizer
            var rand = RandomSeed();

            var chars = new List <char>();

            if (options.RequireUppercase)
            {
                chars.Insert(rand.Next(0, chars.Count),
                             randomChars[0][rand.Next(0, randomChars[0].Length)]);
            }

            if (options.RequireLowercase)
            {
                chars.Insert(rand.Next(0, chars.Count),
                             randomChars[1][rand.Next(0, randomChars[1].Length)]);
            }

            if (options.RequireDigit)
            {
                chars.Insert(rand.Next(0, chars.Count),
                             randomChars[2][rand.Next(0, randomChars[2].Length)]);
            }

            if (options.RequireNonAlphanumeric)
            {
                chars.Insert(rand.Next(0, chars.Count),
                             randomChars[3][rand.Next(0, randomChars[3].Length)]);
            }

            var rcs = randomChars[rand.Next(0, randomChars.Length)];

            for (var i = chars.Count;
                 i < options.RequiredLength ||
                 chars.Distinct().Count() < options.RequiredUniqueChars;
                 i++)
            {
                chars.Insert(rand.Next(0, chars.Count),
                             rcs[rand.Next(0, rcs.Length)]);
            }

            return(new string(chars.ToArray()));
        }