A strong password generator program with source code

In my previous post https://steemit.com/programming/@royalmacro/a-free-open-source-data-encryption-program-for-steemit-users I share a data encrypton tool with source code, now, today here I share another program, a strong password generator with source code.

This program will generate strong, hard-to-guess passwords. I’ll do it by hashing together “domain name”, “login/user id” & “a secure master key”.
If you use the same secure master key for every password generations then you do not need to write down or, memorize your generated passwords. When you need your password then repeat the same procedure to re-generate it. If your “domain name”, “login/user id” & “a secure master key” are not different then you will generate the same password.

If you use only one secure master key then you have to only memorize your master key, not the passwords.

Lets try it !

Step by Step Development :

Open a new project in Visual Basic 8. Select “Standard EXE”.

Create 5 text boxes & one command button. Text1 textbox, Text2 textbox, Text3 textbox, Text4 textbox, Text5 textbox & Command1 commandbutton.

Add 5 Labels with captions “domain name”, “login/user id”, “secure master key”, “strong password” & “normal password”. And change the caption of the Command1 commandbutton to “Generate”. Add the passwordchar “*” to the Text3 textbox “password char” properties.

Add a module “Module 1” to the project

Add this following codes to the module “Module 1” :

Option Explicit

Public Function CryptRC4(sText As String, sKey As String) As String
Dim baS(0 To 255) As Byte
Dim baK(0 To 255) As Byte
Dim bytSwap     As Byte
Dim lI          As Long
Dim lJ          As Long
Dim lIdx        As Long

For lIdx = 0 To 255
    baS(lIdx) = lIdx
    baK(lIdx) = Asc(Mid$(sKey, 1 + (lIdx Mod Len(sKey)), 1))
Next
For lI = 0 To 255
    lJ = (lJ + baS(lI) + baK(lI)) Mod 256
    bytSwap = baS(lI)
    baS(lI) = baS(lJ)
    baS(lJ) = bytSwap
Next
lI = 0
lJ = 0
For lIdx = 1 To Len(sText)
    lI = (lI + 1) Mod 256
    lJ = (lJ + baS(lI)) Mod 256
    bytSwap = baS(lI)
    baS(lI) = baS(lJ)
    baS(lJ) = bytSwap
    CryptRC4 = CryptRC4 & Chr$((pvCryptXor(baS((CLng(baS(lI)) + baS(lJ)) Mod 256), Asc(Mid$(sText, lIdx, 1)))))
Next
End Function

Public Function pvCryptXor(ByVal lI As Long, ByVal lJ As Long) As Long
If lI = lJ Then
    pvCryptXor = lJ
Else
    pvCryptXor = lI Xor lJ
End If
End Function

Public Function ToHexDump(sText As String) As String
Dim lIdx            As Long

For lIdx = 1 To Len(sText)
    ToHexDump = ToHexDump & Right$("0" & Hex(Asc(Mid(sText, lIdx, 1))), 2)
Next
End Function

Public Function FromHexDump(sText As String) As String
Dim lIdx            As Long

For lIdx = 1 To Len(sText) Step 2
    FromHexDump = FromHexDump & Chr$(CLng("&H" & Mid(sText, lIdx, 2)))
Next
End Function

Input this following code to Form1 :

Private Sub Command1_Click()
Dim KEY As String
Dim Password As String
Dim str1, str2, str3, str4, laststr As String

If Me.Text1.Text = "" Then
MsgBox "Error - You have entered no domain!", vbCritical, "Error"
ElseIf Me.Text2.Text = "" Then
MsgBox "Error - You have entered no Login ID!", vbCritical, "Error"
ElseIf Me.Text3.Text = "" Then
MsgBox "Error - You have entered no master key!", vbCritical, "Error"
ElseIf Len(Me.Text3.Text) < 3 Then
MsgBox "Error - You have entered too short Master Key. Please, enter at least 3 characters!", vbCritical, "Error"
Else

KEY = LCase(Me.Text1.Text) + LCase(Me.Text2.Text)

Password = ToHexDump(CryptRC4(Me.Text3.Text, KEY))
If Len(Password) > 18 Then
Password = Mid$(Password, 1, 18)
End If

str1 = Mid$(Password, 1, 1)
str2 = Mid$(Password, 2, 1)
str3 = Mid$(Password, 3, 1)
str4 = Mid$(Password, 4, 1)
laststr = Mid$(Password, 5, Len(Password) - 4)

If Len(Me.Text3.Text) = 3 Then

Me.Text4.Text = str1 + "S" + str2 + "^" + str3 + "7" + str4 + "l" + laststr
Me.Text5.Text = str1 + "t" + str2 + "3" + str3 + "I" + str4 + "0" + laststr

ElseIf Len(Me.Text3.Text) = 4 Then

Me.Text4.Text = str1 + "R" + str2 + "$" + str3 + "8" + str4 + "j" + laststr
Me.Text5.Text = str1 + "k" + str2 + "7" + str3 + "X" + str4 + "5" + laststr

ElseIf Len(Me.Text3.Text) = 5 Then

Me.Text4.Text = str1 + "E" + str2 + "%" + str3 + "6" + str4 + "g" + laststr
Me.Text5.Text = str1 + "d" + str2 + "2" + str3 + "U" + str4 + "4" + laststr

ElseIf Len(Me.Text3.Text) = 6 Then

Me.Text4.Text = str1 + "H" + str2 + "!" + str3 + "5" + str4 + "m" + laststr
Me.Text5.Text = str1 + "v" + str2 + "1" + str3 + "F" + str4 + "0" + laststr

ElseIf Len(Me.Text3.Text) = 7 Then

Me.Text4.Text = str1 + "J" + str2 + "~" + str3 + "6" + str4 + "c" + laststr
Me.Text5.Text = str1 + "w" + str2 + "7" + str3 + "Q" + str4 + "9" + laststr

ElseIf Len(Me.Text3.Text) = 8 Then

Me.Text4.Text = str1 + "Z" + str2 + "#" + str3 + "8" + str4 + "h" + laststr
Me.Text5.Text = str1 + "o" + str2 + "6" + str3 + "T" + str4 + "4" + laststr

ElseIf Len(Me.Text3.Text) = 9 Then

Me.Text4.Text = str1 + "Y" + str2 + "@" + str3 + "5" + str4 + "d" + laststr
Me.Text5.Text = str1 + "p" + str2 + "4" + str3 + "W" + str4 + "7" + laststr

ElseIf Len(Me.Text3.Text) = 10 Then

Me.Text4.Text = str1 + "Z" + str2 + "&" + str3 + "8" + str4 + "n" + laststr
Me.Text5.Text = str1 + "y" + str2 + "2" + str3 + "G" + str4 + "5" + laststr

ElseIf Len(Me.Text3.Text) = 11 Then

Me.Text4.Text = str1 + "B" + str2 + "*" + str3 + "3" + str4 + "j" + laststr
Me.Text5.Text = str1 + "f" + str2 + "0" + str3 + "V" + str4 + "7" + laststr

ElseIf Len(Me.Text3.Text) = 12 Then

Me.Text4.Text = str1 + "Q" + str2 + "(" + str3 + "6" + str4 + "e" + laststr
Me.Text5.Text = str1 + "r" + str2 + "5" + str3 + "W" + str4 + "9" + laststr

ElseIf Len(Me.Text3.Text) = 13 Then

Me.Text4.Text = str1 + "U" + str2 + ")" + str3 + "7" + str4 + "t" + laststr
Me.Text5.Text = str1 + "m" + str2 + "4" + str3 + "K" + str4 + "7" + laststr

ElseIf Len(Me.Text3.Text) = 14 Then

Me.Text4.Text = str1 + "O" + str2 + "-" + str3 + "2" + str4 + "l" + laststr
Me.Text5.Text = str1 + "w" + str2 + "6" + str3 + "I" + str4 + "4" + laststr

ElseIf Len(Me.Text3.Text) = 15 Then

Me.Text4.Text = str1 + "X" + str2 + "=" + str3 + "7" + str4 + "j" + laststr
Me.Text5.Text = str1 + "d" + str2 + "5" + str3 + "V" + str4 + "6" + laststr

ElseIf Len(Me.Text3.Text) = 16 Then

Me.Text4.Text = str1 + "C" + str2 + "+" + str3 + "6" + str4 + "n" + laststr
Me.Text5.Text = str1 + "m" + str2 + "9" + str3 + "J" + str4 + "8" + laststr

ElseIf Len(Me.Text3.Text) > 16 Then

Me.Text4.Text = str1 + "T" + str2 + "+" + str3 + "6" + str4 + "y" + laststr
Me.Text5.Text = str1 + "l" + str2 + "9" + str3 + "X" + str4 + "8" + laststr


End If
End If
End Sub

Make the exe file :

Completed ! Now run the exe file :

In this tutorial I use “gmail.com” as domain, “samplegmailaccount@gmail.com” as login/user id & “12345678” as my secure master key. And after pressing the “Generate” button I got two types of passwords – strong (0Z5#388h834926252CB6) & normal (0o563T84834926252CB6). Look strong type passwords has special characters & normal has not. Some websites don’t support any special characters as password. So, you can normal password there. If you change any fields of domain, login/user id & secure master key then this program will generate quite different password.

If you use only one secure master key to generate your passwords then you have to only memorize your master key, not the passwords. And you will generate different types of strong passwords for different websites or Login/User IDs.

Thank you :D

Download the source code project

Tags : Open Source Project, Programming, Security, Software, Steemit, Visual Basic,

This Post Was Published On My Steemit Blog. Please, navigate to steemit and cast a free upvote to help me if you like my post. First Time heard about Steemit ? Click Here To Know Everything About Steemit

$3 Donation [Fixed]

Donate

$Any Amount

Comments

What I Learnt Today : 10 Unknown Amazing Facts About Animals - Part CXXXIII

image credit (1) Japanese Macaques make snowballs for fun. (2) The chevrotain is an animal that looks like a tiny deer with fangs. (3) Turritopsis nutricula Immortal jellyfish is the only species known to live forever. (4) One million stray dogs and 500,000 stray cats live in New York City metropolitan area. Turritopsis nutricula Immortal jellyfish image credit (5) Nine-banded armadillos always give birth to identical quadruplets. (6) The flying frog uses flaps of skin between its toes to glide. (7) It takes a sloth two weeks to digest its food. Nine-banded armadillo flying frogs image credit (8) A narwhal tusk is actually an exaggerated front left tooth, and unlike most teeth, it's soft and sensitive on the outside with a tough interior. (9) Humpback whales create the loudest sound of any living creature. (10) The slowest mammal on earth is the tree sloth. It only moves at a speed of 6 feet (1.83 meters) per minute. slot...

The Real Face Of India - Episode 113

The Real Face Of India - Episode#113 I believe that India is the most beautiful country in the world. In this series I show the real face of beautiful India. Half Dozen Photos of Natural Beauties Snap taken : 22 Jan 2018 Camera : SONY, Model : DSC-W710 Other Episodes : Episode#01 , Episode#02 , Episode#03 , Episode#04 , Episode#05 , Episode#06 , Episode#07 , Episode#08 , Episode#09 , Episode#10 , Episode#11 , Episode#12 , Episode#13 , Episode#14 , Episode#15 , Episode#16 , Episode#17 , Episode#18 , Episode#19 , Episode#20 , Episode#21 , Episode#22 , Episode#23 , Episode#24 , Episode#25 , Episode#26 , Episode#27 , Episode#28 , Episode#29 , Episode#30 , Episode#31 , Episode#32 , Episode#33 , Episode#34 , Episode#35 , Episode#36 , Episode#37 ,...

LINES by an unknown author

image credit I just found this poem in a very old book in our local library. There is no author name. I share it here : LINES The stars are dim, the moon shines cold, A gentle breeze sweeps o'er the lea, And softly falls the rippling sea, On jutting reef and headland bold. The chaffinch, eldest child of May, Impatient in his nest awakes, And with his rustling pinion shakes, The dew that gems the hawthorn spray. By mountain paths to pastures new, The lonely shepherd leads his flock, Light wreaths of mist on stream and rock, Spread filmy veils of softest blue. O ye, who through the slow-paced night, Have watched and wept, lift up lour eyes, Soon shall the golden morning rise, And crown the eastern hills with light. [COLLECTED] Tags : Poems, Poetry, Life, This Post...

Deadliest Ancient Indian Weapons

Today here I introduce some ancient destructive weapons which were used in India during 100 to 700 A.D. My visit : Collections of ancient Indian weapons, Chennai Museum 10. Bhuj, Or Kirpan (Dagger) image credit image credit image credit This kind of dagger were mostly used in India during duels. These daggers are small in shape & size, 6-10 inches long and 2-4 inches wide. Weight is up to 500 grams. This dagger is made of steel, jade, gold, diamond, emerald, ruby, agate etc. These daggers were not popular in the wars, only popular for hand-to-hand fighting. 09. Valla Or, Shul (Spear) image credit image credit image credit Valla were very popular in the wars, because, attackers could use it in keeping themselves from safe distances. It has a long sharp steel bladed head. Length is up to 40 inches & weight is up to 5 kilograms. 08. Tri...

Visiting deep inside the Sundarbans & spent days with Bawali - Episode #11

In the last October-November I visited Sundarbans, the world's one of the largest mangrove forest. It was also declared as world heritage site by UNESCO in 1997. In this forest a numerous wildlife species exist - birds, reptiles, fishes, amphibians and also the king of the forest "Royal Bengal Tiger". The ganges dolphins & crocodiles are also living in the canals of Sundarbans. Chital is a one kind of spotted deer living in this forest. The rural life in the area of this coastal forest is also very attractive. They basically maintain their lives by collecting honey, woods and fishes. In the native language they are called as Bawali. I spent some days with them. Here I share some of my tour photographs of Sundarbans and Bawali -- This is a photograph of "Gunin". Every Bawali team has their own "Gunin" before starting journey to the jungle. Who is "Gunin" ? Gunin is one kind of wizard. Bawalis believe that their "Gunin" c...

One Black & White Photograph Daily for 30 days - Day #25

green yard - behind of my village home Camera : Xiaomi Model : 2014818 Location : Bongaon, West Bengal, India Snap Taken : 14 March 2016 Tags : Black & White Photography, Flowers & Plants photography, Landscape photography, Nature, Photography, This Post Was Published On My Steemit Blog . Please, navigate to steemit and cast a free upvote to help me if you like my post. First Time heard about Steemit ? Click Here To Know Everything About Steemit $3 Donation [Fixed] Donate $Any Amount

One Black & White Photograph Daily for 30 days - Day #18

green yard Camera : Nokia Model : N78 Location : Kolkata, West Bengal, India Snap Taken : 25 May 2009 Tags : Black & White Photography, Flowers & Plants photography, Landscape photography, Nature, Photography, This Post Was Published On My Steemit Blog . Please, navigate to steemit and cast a free upvote to help me if you like my post. First Time heard about Steemit ? Click Here To Know Everything About Steemit $3 Donation [Fixed] Donate $Any Amount

One Black & White Photograph Daily for 30 days - Day #29

In front of a park, a row of palm trees Camera : Nokia Model : N78 Location : Kolkata, West Bengal, India Snap Taken : 25 May 2009 Tags : Black & White Photography, Flowers & Plants photography, Landscape photography, Nature, Photography, This Post Was Published On My Steemit Blog . Please, navigate to steemit and cast a free upvote to help me if you like my post. First Time heard about Steemit ? Click Here To Know Everything About Steemit $3 Donation [Fixed] Donate $Any Amount

What I Learnt Today : 10 Unknown Amazing Facts About Animals - Part LXXV

image credit (1) Frogs don’t drink water. They absorb it through their skin. (2) A sun bear claws grow throughout its lifetime and the length of its claws can recognize the age of sun bears. (3) Many animals have been reported to commit suicide, including cows, dogs, bulls, and sheep. (4) There are no ants in Iceland, Greenland, and Antarctica. cheetah image credit (5) A cheetah can accelerate from 0 to 60 mph (95 km/h) in just 3 seconds. That’s faster than a Ferrari Enzo. (6) A Reindeer’s nose warms the air it breathes before it gets to its lungs. (7) Hyenas regularly eat the faeces of other animals. Reindeer’s nose Hyenas image credit (8) A Tasmanian Devil's powerful jaw is three times stronger than the jaw of a Pit Bull Terrier. So if you see one don't muck with it (9) One survey reports that 33 percent of dog owners admit they talk to their dogs on the phone or leave messages on answering machines while they are away. (10) Fennec fox...

mathematics behind chess

Is there any relationship between supposing numerically and supposing in the round of Chess? At the end of the day, should a man having a dynamic personality in Mathematics turned out to be essentially a decent Chess player have aptitudes in Mathematics? It is important to call attention to that because of the subject intricacy, our endeavors will be to clarify essential attributes of both Science and Chess which have been postured by surely understood Mathematicians and Chess players. In like manner, we are not keen on uncovering truths, for instance, from the Theory of Knowledge, Psychology, Epistemology or going further into the specialized and complex parts of Chess. In the first place, let us analyze a few characteristics of Mathernatics. Individuals having poor involvement in Mathematics trust that knowing how to include, subtract, increase or separation empowers them to say that they could ace Mathematics. Others having some aptitu...

Search This Blog