Regular Expressions 101

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number password is 8-16 characters with no space

Checks that a password has a minimum of 6 characters, at least 1 uppercase letter, 1 lowercase letter, and 1 number with no spaces.

Safe Password that allow only with a number, a lowercase, a uppercase, and a special character

Regular expression for password validation Rules: 8-120 chars no spaces must contain at least one a-z char must contain at least one A-Z char must contain at least one digit must contain at least one of the folowing chars: !@#$%^&*()-=¡£_+`~.,/?;:'\"|[]{}

Regex For finding username:password

fjk@1Qaa$

This regex matches only when all the following are true: password has minimum 2 uppercase letters password has minimum 2 lowercase letters password has minimum 2 numerals (0-9) password has minimum 2 special characters, of the group !@#$%^&*()-_=+{};:, password has no more than 2 consecutive identical characters password is composed of 12 to 20 characters belonging ONLY to the above character classes (i.e., no whitespace)

This is a GitHub Advanced Security (GHAS) Secret Scanning Custom Pattern I created to detect likely hardcoded credentials while reducing common false positives in code. Goal: detect assignments for these key names: password secret apikey / api_key / api-key Pattern regex: (?i)\b(password|secret|api[-]?key)\b\s[:=]\s(?!\s\$\{)(?!\sprocess\.env\b)(?:['"])?[A-Za-z0-9!@#$%^&()+=-]{5,}(?:['"])? What it should catch (examples): password: "ahsjdfahsjfhdjsahj" secret = 'kjfskahfsdhfj' apikey: ABCDE12345!@# (unquoted) What it tries NOT to catch (common false positives): password: ${password_somename} (template/variable placeholder) secret: ${VAULT_SECRET} password: process.env.DB_PASSWORD (env var reference, not a hardcoded secret) This is intended as a practical baseline; it won’t be perfect for every language/config style. If you have suggestions to improve the detection accuracy (reduce false positives/false negatives) for GHAS custom patterns, please share.

Password requirements Contains at least 1 number Contains at least 1 special character Contains at least 1 uppercase letter Contains at least 1 lowercase letter It follows AWS in allowing white-space.

A simple URL regex that can handle most "properly" formed URLs, and some URIs. It features named groups to easily destruct matches. URIs can use relative paths (../ and ./) to resources. Example (JavaScript) let url = "https://username:password@example.org:8080/path/to/resource?query=term&query=terms#fragment"; let regex = /{{ URL RegEx }}/i; let { href, origin, protocol, scheme, username, password, host, hostname, port, pathname, search, hash } = regex.exec(url).groups; // href → "https://username:password@example.org:8080/path/to/resource?query=term&query=terms#fragment" // origin → "https://" // protocol → "https:" // scheme → "https" // username → "username" // password → "password" // host → "example.org:8080" // hostname → "example.org" // port → "8080" // pathname → "/path/to/resource" // search → "?query=term&query=terms" // hash → "#fragment"

Group 1 will have meeting id, group 2 will have password

1 Uppercase 1 lower case 1 number 1 not a number or letter

Atleast one charector Atleast one number Min 6 and Max 20 Special charectors optional

Checks for password containing at least 1 Upper case, 1 lower case, 1 digit and 1 special character, all together with a length of at least 8. (This pattern allows any order of the requried elements, other than what was been distributed here before)

Password require: lowercase, uppercase, symbol, not consecutive same letter/number, and not some specific words

This regular expression parses the uri of an one-time password typically masked by a QR Code. The expression supports the core hotp and totp, name, secret and optional counter (for hotp)

This RegEx was posted on a Ruby site as one for enforcing password pattern. I added {8,32} to limit the length of the password, even though I realize no one has passwords longer than that. Rules: at least 1 digit, 1 special character (as defined), 1 upper case and 1 lower case character, between 8 and 32 characters total. The question I have pertains to the trailing .*$ pattern. On the Rubular site, this is required. On regex101.com it does not see to add value to the regex. Do I need the .*$ on the expression?

fjk@1Qaa$

Checks password for following attributes: At least 2 uppercase letters At least 2 lowercase letters At least 2 numbers At least 2 non-alphanumeric characters Length is deliberately not checked as it's best to pre-check using standard coding.

1 caractère minuscule minimum 1 caractère majuscule minimum 1 chiffre minimum 1 caractère spécial minimum pas d'espace 8 caractères minimum en tout

Tests for valid http or https protocol URL. *2 groups- one for protocol,domain, and any subdomains; and one for path, query, params, and fragments(if any. The following WILL match: http://foo.com/blah_blah http://foo.com/blah_blah/ http://foo.com/blah_blah_(wikipedia) http://foo.com/blah_blah_(wikipedia)_(again) http://www.example.com/wpstyle/?p=364 https://www.example.com/foo/?bar=baz&inga=42&quux The following WILL NOT match: http://✪df.ws/123 http://userid:password@example.com:8080 http://userid:password@example.com:8080/ http://userid@example.com http://userid@example.com/ http://userid@example.com:8080 http://مثال.إختبار http://例子.测试 http://उदाहरण.परीक्षा http://-.~_!$&'()*+,;=:%40:80%2f::::::@example.com http://1337.net http://a.b-c.de http://223.255.255.254 The following SHOULD NOT and DO NOT match: http:// http://. http://.. http://../ http://? http://?? http://??/ http://# http://## http://##/ http://foo.bar?q=Spaces should be encoded // //a ///a /// http:///a foo.com rdar://1234 h://test http:// shouldfail.com :// should fail http://foo.bar/foo(bar)baz quux ftps://foo.bar/ http://-error-.invalid/ http://a.b--c.de/ http://-a.b.co http://a.b-.co http://0.0.0.0 http://10.1.1.0 http://10.1.1.255 http://224.1.1.1 http://1.1.1.1.1 http://123.123.123 http://3628126748 http://.www.foo.bar/ http://www.foo.bar./ http://.www.foo.bar./ http://10.1.1.1 I only needed http and https; however others could be added.

1 digit 1 lower case 1 upper case 1 special character (no-space) 8-20 length

Check if the string has a minimum of 6 characters, at least 1 upper case char, at least 1 lower case char and at least 1 number with no spaces.

See the chapter On the Subject of Passwords in Bomb Defusal Manual

PureTrack.net

softwaresfordownloads.com

corridanandco.com

for JS regular expression to validate any http|https|ftp|IPv4 address, supported: authority username:password (example https://username:password@example.com); port :0-65565 (example https://example.com:80); query/queries ?c=1 or ?c=1&d=x (example https://example.com/main.php?c=1&d=x); fragment #name (example https://example.com/main.php#top); WaybackMachine URLs contains *;

password validator

Synopsis The subject password must fullfill several criterias to ensure it's have an acceptable level of minimal security. Success criterias contains at least 1 number (0-9) contains at least 1 uppercase letters contains at least 1 lowercase letters contains at least 1 non-alpha numeric number password is 8-16 characters without whitespaces (space, tab, newline)

Parses connection strings into named groups Key and Value , which can then be handled by whatever programmatic method you like. Ideally handled as key value pairs. I did this in PowerShell using the below: function Resolve-ConnectionString { param( [string]$ConnectionString, [string[]]$IncludeKeys = @(), [switch]$HideSensitiveValues, [switch]$AsObject ) begin { Write-Debug "Enter [$($PSCmdlet.MyInvocation.MyCommand.Name)]..." $PSBoundParameters.Keys.ForEach{ if ($PSBoundParameters.PSItem -is [string]) { Write-Debug "$_ : $($PSBoundParameters.Item($_))" } else { Write-Debug "$_ : $($PSBoundParameters.Item($_).GetType())" } } $SensitiveValueKeys = [System.Collections.Generic.List[string]]::new([string[]]@( 'AccountKey', 'Password', 'SharedAccessKey', 'SharedAccessSignature', 'Token', 'PAT', 'PersonalAccessToken', 'AccessToken' )) Example Connection Strings $testcontent2 = @" AccountEndpoint=https://some-base-name.documents.azure.com:443/;AccountKey=kascuh9823nfsdvxc==; Endpoint=sb://other-more-different-name.servicebus.windows.net/;SharedAccessKeyName=mysak-name;SharedAccessKey=msd8fs2bsc==;EntityPath=someentitypath;TransportType=Amqp Data Source=myServerName.whatever.local;Initial Catalog=MyDatabaseName;Persist Security Info=True;User ID=myUserId;Password=MyBadPractice;MultipleActiveResultSets=True;MultiSubnetFailover=True; "@ $regexString = "(?:(?'Key'[\w|\s]*)=(?'Value'+);?)" } process { if ($AsObject) { $output = [PSCustomObject]::new() } else { $output = @{} } if ($IncludeKeys.Count -gt 0) { $IncludeKeys.ForEach{ Write-Debug "Adding key [$PSItem] to list of sensitive keys" $SensitiveValueKeys.Add($PSItem) } } Write-Debug "SensitiveValueKeys Count: $($SensitiveValueKeys.Count)" [regex]::Matches($ConnectionString, $regexString).foreach{ $Key = $PSItem.Groups.Where({ $PSItem.Name -eq 'Key' })[0].Value $Value = $PSItem.Groups.Where({ $PSItem.Name -eq 'Value' })[0].Value Write-Debug "Key: [$($Key)]" Write-Debug "Value: [$($Value)]" $keyIsSensitive = ($SensitiveValueKeys | ForEach-Object { $Key -like "$PSItem" }).Contains($true) Write-Debug "Key is sensitive: [$($keyIsSensitive)]" if ($HideSensitiveValues -and $keyIsSensitive) { $Value = '**' } elseif ($keyIsSensitive) { Write-Warning "The value of [$($Key)] is sensitive and will be included in the output!!!" } if ($AsObject) { $output | Add-Member -MemberType NoteProperty -Name $Key -Value $Value -Force } else { $output.$Key = $Value } } } end { $output Write-Debug "Exit [$($PSCmdlet.MyInvocation.MyCommand.Name)]..." } }

[ [ { "content": "_}24I:9t58Tu?m@e", "isParticipating": true, "groupNum": 0, "startPos": 66, "endPos": 82 }, { "content": "e", "isParticipating": true, "groupNum": 1, "startPos": 81, "endPos": 82 } ], [ { "content": "|YlzEc|1", "isParticipating": true, "groupNum": 0, "startPos": 83, "endPos": 91 }, { "content": "1", "isParticipating": true, "groupNum": 1, "startPos": 90, "endPos": 91 } ], [ { "content": "#m_4xF%t\"Bu5jeb$", "isParticipating": true, "groupNum": 0, "startPos": 92, "endPos": 108 }, { "content": "$", "isParticipating": true, "groupNum": 1, "startPos": 107, "endPos": 108 } ], [ { "content": "Password1!", "isParticipating": true, "groupNum": 0, "startPos": 109, "endPos": 119 }, { "content": "!", "isParticipating": true, "groupNum": 1, "startPos": 118, "endPos": 119 } ] ]

Regex para validar una contraseña con un minimo 8 caracteres, maximo 16 y debe incluir minusculas, mayusculas, digitos y un caracter especial. Todo sin espacios

Password requirements: Contains at least one uppercase letter. Contains at least one lowercase letter. Contains at least one digit. Does not contain any whitespace characters. Has a minimum length of 8 characters.

Password should contain at least 8 symbols, one lower case, one upper case and one number. https://owasp.org/www-community/password-special-characters

Password Complexity 8-32 Characters, AlphaNumeric with OWASP Special Characters

Support JS and PHP

This regex will validate your password To be stronger, the password must be contain: At least 8 characters At least 1 number At least 1 lowercase character (a-z) At least 1 uppercase character (A-Z) At least 1 special character (! @ # $) I hope I've helped :)

This regular expression allows you to simply check if a password matches with your conditions. By default it will require: 1 {1} uppercase letter [A-Z] or more 1 {1} lowercase letter [a-z] or more 1 {1} number [0-9] or more 1 {1} special character [@#$%^!&+=.\-_*] or more You can easily change the minimum by editing the value in the respective {1}

This regex is to describe the password which has at least 7 characters (OC) with at least a special one (SC). Of course, we know the SC may be in the first, second .... or last of the password. Also, we know the password maybe bigger than just 8. so I wrote the RE to accept any character (AC) from ! to ~ which Contains all characters in the end with * {0, }. but the problem in the beginning before writing 8 characters. The user may enter 7 AC in the first then SC. Or 6 AC then SC then at least 1 AC. Or 5 AC then SC then at least 2 AC. and so on special characters are : https://tools.oratory.com/altcodes.html ! " $ % & ' ( ) , . / : ; ? @ [ \ ] ^ _ ` { | } ~

Successful Heartbeat regex parser for PasswordState Dev Area

Catchall regex parser for PasswordState Dev Area

PasswordState Failed User Logon Dev Area Mapped: SIP DIP Account Subject

Password requirements (minimum length, character groups that must exist) can be easily validated AND extended using look-aheads.

Contrôler si le mot de passe possède des lettres minuscules ou majuscules de a à z, des chiffres de 0 à 9 et des caractères spéciaux.

1 letter - 1 number - 1 special character