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CIA triad versus Parkerian Hexad

12-15-2008

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CIA triad versus Parkerian Hexad

If you find a really outrageous quote about infosec, it usually comes from either Donn Parker or Winn Schwartau. (If you find a really good quote about infosec, it usually comes from Gene Spafford or Bruce Schneier.) Donn frequently makes the point that the widely used CIA triad (Confidentiality, Integrity, and Availability) is insufficient to describe the totality of what we need to consider in the infosec field, and proposes a "hexad" of confidentiality, possession, integrity, authenticity, availability, and utility.

(Note also that Donn asserts the definitions of integrity and authenticity in the Wikipedia entry are flawed.)

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LEARN ABOUT PHP

db2_escape_string

DB2_ESCAPE_STRING(3)							 1						      DB2_ESCAPE_STRING(3)

db2_escape_string - Used to escape certain characters

SYNOPSIS

       string db2_escape_string (string  $string_literal)

DESCRIPTION

	Prepends backslashes to special characters in the string argument.

PARAMETERS

	      o $string_literal
		-  The	string that contains special characters that need to be modified. Characters that are prepended with a backslash are x00,
		
, 
, , ', " and x1a.

RETURN VALUES

	Returns $string_literal with the special characters noted above prepended with backslashes.

EXAMPLES

       Example #1

	      A db2_escape_string(3) example

	       Result of using the db2_escape_string(3) function

	      <?php

	      $conn = db2_connect($database, $user, $password);

	      if ($conn) {
		  $str[0] = "All characters: x00 , 
 , 
 ,  , ' , " , x1a .";
		  $str[1] = "Backslash (). Single quote ('). Double quote (")";
		  $str[2] = "The NULL character  must be quoted as well";
		  $str[3] = "Intersting characters: x1a , x00 .";
		  $str[4] = "Nothing to quote";
		  $str[5] = 200676;
		  $str[6] = "";

		  foreach( $str as $string ) {
		      echo "db2_escape_string: " . db2_escape_string($string). "
";
		  }
	      }
	      ?>

	      The above example will output:

	      db2_escape_string: All characters:  , 
 , 
 , \ , ' , " ,  .
	      db2_escape_string: Backslash (\). Single quote ('). Double quote (")
	      db2_escape_string: The NULL character  must be quoted as well
	      db2_escape_string: Intersting characters:  ,  .
	      db2_escape_string: Nothing to quote
	      db2_escape_string: 200676
	      db2_escape_string:

SEE ALSO

       db2_prepare(3).

PHP Documentation Group 												      DB2_ESCAPE_STRING(3)