Random character sets, also known as codes, can be used for various purposes. Most commonly, they are used to mark something in order to uniquely identify it, for example product packaging, discount coupons or serial numbers. They can also be useful as passwords, one-time access codes or test data. Below you will find some examples of their use, along with sample code formats that can be used for this purpose. Each example allows you to quickly generate a sample set of codes and go to the generator immediately configured for a given example in order to adjust its configuration and generate more codes.
One of the most basic examples of generated codes may be a random string of characters consisting of letters and numbers. Below is an example of several 8 character codes.
In the case of strings of characters containing upper and lower case letters, reading them is often difficult, for this reason, if the code is to be read by a human, let alone rewritten, it is recommended to use a uniform character size, e.g. using only upper case letters. Below is an example of several such 6 character codes.
Sometimes it may be necessary to generate strings of characters consisting of all printable ASCII characters (letters, numbers and special characters). The following example shows in simple way how multiple patterns can be used at once.
Strong passwords should, above all, be long. OWASP ASVS 4.0 recommends that they be at least 12 characters long, which will make breaking them relatively unprofitable. It's a good idea not to rely on minimum requirements, which is why we recommend using at least 16-character, random passwords using letters, numbers and special characters.
If codes are to be transcribed or dictated, it is a good idea to structure them in a way that is easy to read and pronounce. For this purpose, a construction with alternating vowels and consonants can be used.
Serial numbers can take various formats. One of the most popular is a set of four or more fixed-length alphanumeric blocks separated by dashes. This structure allows the code to be long and at the same time easy to read and rewrite.
When you want to give someone a gift card or voucher, it is a good idea to have it marked with a unique code that will allow you to easily verify whether the voucher is valid or has not already been used. Such codes should be relatively short so that they can be dictated quickly, yet random enough so that someone cannot guess the value of another voucher that is not theirs.
If you intend to distribute the codes worldwide, and at the same time want to be able to easily identify which country a code originates from, you can add the country code to each code as a prefix. For example, for codes for the USA, add the prefix US-, for England UK-, and for Germany DE-, etc.
All permutations are, in other words, all possible combinations of words composed of the characters of the original word. If you want to generate all permutations of a word, e.g. ABCD in advanced mode, enter this word in the field "Set of characters that can appear in the code", and then set "Single code length" to the length of the entered word (in this case 4), and "Number of codes to generate" to the number of possible combinations that can be obtained from the selected generator configuration (in this case 256). The exact number of possible combinations can be found in the description of the field "Set of characters that can appear in the code".
Every computer on the Internet has its own IP address that uniquely identifies it. The most common way to write an IPv4 address is to represent it as 4 numbers from 0 to 255 separated by dots. The list of IPv4 addresses can be useful when testing various types of security or access control mechanisms.
When testing systems in which resources are marked with a date, a set of random dates may be useful. One of the most popular date formats in IT systems is the YYYY-MM-DD format, which means that at the beginning there is a four-digit year, then after a dash a two-digit month number with a leading zero, and then after a dash the day of the month also with a leading zero.
Dates and times in IT systems are often written in numerical form using the so-called Unix timestamp. A Unix timestamp is the number of seconds since January 1, 1970 UTC. Unix timestamps are a digital standard for denoting an exact, universal time.
The MD5 message-digest algorithm is a widely used hash function producing a 128-bit hash value. For greater readability the 128-bit (16-byte) MD5 hashes are typically represented as a sequence of 32 hexadecimal digits.
SHA-1 (Secure Hash Algorithm 1) is a hash function which takes an input and produces a 160-bit hash value known as a message digest. For greater readability the 160-bit (20-byte) hashes are typically represented as 40 hexadecimal digits.
A very common practice when developing software is to mark its successive releases or versions with a unique code, the so-called version number. This makes it easy to determine whether the software is up to date (has the latest version number) and to refer to a specific release when problems or bugs are reported. One of the most common ways of numbering software versions is semantic versioning, the so-called "SemVer". The standard version number must take the form X.Y.Z, where X, Y and Z are non-negative integers and must not contain leading zeros. X is the major version, Y is the minor version and Z is the patch version. Each component must grow numerically. For example: 2.19.0 → 2.20.0 → 2.20.1 → 2.21.0.
Car tires are described using a special code, for example 195/65R15 where 195 is the tire width given in millimeters, then there is the / sign followed by the tire profile which determines the height of the tire sidewall, given as a percentage of the width (here 65% from 195 equals 126.75 mm). Then there is the tire type designation in the form of a letter, here R stands for radial tire. The last element is a number indicating the size of the rim that the tire fits on, given in inches, in this example the tire fits a 15-inch rim.
Are you looking for a name for a new male hero of a fantasy novel, or maybe you are starting a new RPG campaign and don't know what to name your companion on a journey to a dungeon full of goblins and demons? You can use our generator to create dozens of sample male names and choose the one that suits you best.
Are you starting a new RPG campaign and don't know what to name your companion on a journey to a dungeon full of trolls and dragons or maybe looking for a fantasy novel female hero name? You can use our generator to create dozens of sample female names and choose the one that suits you best.
You have no idea what decision to make, but you can answer it with Yes or No? You can use the generator to do it for you! Ask a question and click the button below and you will receive a file with the answer to your question where Y means Yes and N means No.