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  1. //Saliha Babar                    CS1A               Chapter 10, #12, Page 590
  2. //
  3. /****************************************************************************
  4.  * VERIFY PASSWORD
  5.  * ___________________________________________________________________________
  6.  * This program accepts string and determines whether that string meet certain 
  7.  * password requirements.
  8.  * 
  9.  * The requirements include
  10.  * at least 6 characters, at least one upper case & one lowercase & one digit
  11.  * ____________________________________________________________________________
  12.  * INPUT
  13.  *   SIZE       : maximum size of password
  14.  *   password   : array of characters
  15.  * 
  16.  * OUTPUT
  17.  *   lengthCheck   : check for string length
  18.  *   upperCheck    : check for uppercase letter
  19.  *   lowerCheck    : check for lowercase letter
  20.  *   digitCheck    : check for digits
  21.  * **************************************************************************/
  22. #include <iostream>
  23. #include <cstring>
  24. #include <cctype>
  25. using namespace std;
  26.  
  27. bool CheckLength(char array[], int SIZE);
  28. bool CheckUpper (char array[], int SIZE);
  29. bool CheckLower (char array[], int SIZE);
  30. bool CheckDigit (char array[], int SIZE);
  31.  
  32.  
  33. int main() {
  34. 	const int SIZE = 15;     // INPUT -  maximum size of string
  35. 	char password[SIZE];     // INPUT - array to hold characters
  36. 	bool tryAgain = true ;   // Check for overall criteria
  37. 	bool lengthCheck;        // Check for string length
  38. 	bool upperCheck;         // Check for uppercase letter
  39. 	bool lowerCheck;         // Check for lowercase letter
  40. 	bool digitCheck;         // Check for digits
  41.  
  42. 	cout << "Enter a password up to " <<SIZE-1<< " characters that includes\n";
  43. 	cout << "at least 6 characters\n";
  44. 	cout << "at least one uppercase and one lowercase\n";
  45. 	cout << "at least one digit\n";
  46.  
  47. 	while (tryAgain)
  48. 	{
  49. 		cout << "Enter the password as you wish.\n";
  50. 		cin.getline (password, SIZE);
  51. 		lengthCheck = CheckLength (password, SIZE);
  52. 		upperCheck = CheckUpper (password, SIZE);
  53. 		lowerCheck = CheckLower (password, SIZE);
  54. 		digitCheck = CheckDigit (password, SIZE);
  55.  
  56. 		tryAgain = lengthCheck || upperCheck || lowerCheck || digitCheck;
  57. 	}
  58.  
  59. 	cout << "Your password meets the criteria & verified..\n";
  60.  
  61. 	return 0;
  62. }
  63.  
  64. bool CheckLength(char array[],int SIZE)
  65. {
  66. 	if (strlen(array) < 6)
  67. 	{
  68. 		cout << "You did not entered password with at least 6 characters.\n";
  69. 		return true;
  70. 	}
  71.  
  72. 	else
  73. 	return false;
  74. }
  75.  
  76. bool CheckUpper (char array[], int SIZE)
  77. {
  78. 	for (int i = 0; i < SIZE ; i++)
  79. 	{
  80. 		if (isupper(array[i]))
  81. 		return false;
  82. 	}
  83.  
  84. 	cout << "Your password doesnt contain at least one UpperCase letter\n";
  85. 	return true;
  86. }
  87.  
  88.  
  89. bool CheckLower (char array[], int SIZE)
  90. {
  91. 	for (int i = 0; i < SIZE ; i++)
  92. 	{
  93. 		if (islower(array[i]))
  94. 		return false;
  95. 	}
  96.  
  97. 	cout << "Your password doesnt contain at least one lowercase letter\n";
  98. 	return true;
  99. }
  100.  
  101. bool CheckDigit (char array[], int SIZE)
  102. {
  103. 	for (int i = 0; i < SIZE ; i++)
  104. 	{
  105. 		if (isdigit(array[i]))
  106. 		return false;
  107. 	}
  108.  
  109. 	cout << "Your password doesnt contain at least one digit\n";
  110. 	return true;
  111. }
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Enter a password up to 14 characters that includes
at least 6 characters
at least one uppercase and one lowercase
at least one digit
Enter the password as you wish.
You did not entered password with at least 6 characters.
Enter the password as you wish.
Your password meets the criteria & verified..
https://ideone.com/F8i1VK
HW Chapter 10 Password Verifier
language:
C++ (gcc 8.3)
created:
9 hours ago
visibility:
public

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