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Select the "COM Components" tab and click the check "Adobe PDF Reader" and click OK. password in a con guration le is almost as bad as putting it in the source: Anyone who has access to the con guration now also has access to the password Performing some sort of trivial encoding of the password doesn t help Using rot13 or base64 encoding offers very little in terms of security The end result of storing clear-text passwords in con guration les is that the people responsible for con guring, deploying, and maintaining the system have to be trusted with the passwords This exposure makes the application painful to maintain either the set of administrators has to be kept small or the application owners have to trust a large group of people Some Java application servers claim the capability to manage passwords in a more secure way, but their version of secure can be imsy For example, the current version of WebSphere Application Server (Version 61) uses a simple XOR algorithm for obfuscating values A senior technical staff member at IBM said In general, [XOR encoding] is just ne, as a truly stronger solution would require hardware support" [Botzum, 2006] Ha The reality is that XOR is a trivial encoding that does next to nothing to protect the password For a secure solution, the only viable option today appears to be one that you create for yourself The most secure solution for outbound passwords is for an authorized administrator to provide passwords to the system at startup Version 11 of the Payment Card Industry (PCI) Data Security Standards takes this model a step further and requires a split-key approach, in which encryption key components dispersed to two or more people must be combined to access customer credit card information [PCI DSS, 2006] These approaches make automatic restarts impossible, and for many systems, this level of human intervention is impractical For systems that can afford to trade away some security in favor of improved maintainability, the following strategy is often adequate to protect passwords and other secrets: Encrypt passwords and other secrets with a publicly vetted implementation of strong encryption algorithm, and store the cipher text in a con guration le Store the key needed to decrypt the password in a separate le where the running application can access it but most system maintainers cannot For example, assuming that the application runs as the user app, the key ight reside in the le ~app/private/passwdkey Application administrators might have access to only the directory ~app/deployment Diffusing password information forces an attacker to compromise multiple components of the system to gain access to the clear-text password The. . Related: Codabar Generation NET , NET ITF-14 Generation , Interleaved 2 of 5 Generating NET. of how a picture was formed The type of he picture object tells us how it was created: A String_Pic is created from character data that a user supplied to us; a Frame_Pic results from running frame on another Picture, and so on In addition to knowing how an object was created, we also need to store the object(s) from which it was created For a String_Pic, we'll need to remember the characters that the user gave us, which we can do in a vector<string> We create a Frame_Pic by framing another Picture, so we'll need to store the Picture that was framed Similarly, we create HCat_Pics and VCat_Pics by combining two other Pictures These classes will store the Pictures used in creating the resultant new object Before settling on a design that stores Pictures in the Pic_base derived classes, we should think through the implications of this design a bit more deeply Class Picture is an interface class intended for use by our users As such, it captures the interface to our problem domain but not the implementation Specifically, it does not have height, width, or display operations If we think a bit about how these functions might be implemented, we'll see that we'll need access to the corresponding operations on the Picture(s) stored in each of the derived types For example, to calculate height of a VCat_Pic, we need to add the heights of the two Pictures from which it was formed Similarly, we'll obtain the width by finding the maximum of the widths of the two component Pictures An implication of storing a Picture in each of the derived classes is that we'll have to give class Picture functions that duplicate the Pic_base operations Doing so obscures our initial design intent, which was that class Picture should be concerned with interface not implementation We can maintain our design by realizing that what we need in the derived classes is not an interface object but an implementation object This realization implies that instead of storing a Picture, we should store a Ptr<Pic_base> This design keeps a clean separation between interface and implementation, while still maintaining our intention to reference count our implementation objects to avoid unnecessary data duplication Although our design is clean, enough indirection is involved that a picture may help:. j =0 app. QR Code JIS X 0510 Drawer In . 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Using Barcode encoder for .NET framework Control to generate create bar code image in .NET framework applications.Related: .NET EAN-8 Generating , Generate UPC-E .NET , Create ISBN .NET conducted ahead of time Therefore, balancing these two opposing risks, while dif cult, is necessary Reduction of one kind of risk can be accomplished by improving our understanding of how the new assessment will perform when it is introduced Subject matter experts and systems designers can identify a great variety of ways that test takers might respond to the assessment It is also true that any complex performance task has a potentially limitless combination of possible response sets As a consequence, new assessments will not always generate the expected responses from test takers Pretesting new item types, content derivatives, and technological tools with appropriately prepared candidates is a costly, yet valuable risk reduction strategy Pretesting is an ef cient way to identify useful items and cull out inappropriately dif cult, non-discriminating, or coachable items, while trouble-shooting new administration and scoring systems in a low stakes environment Equally valuable is the feedback that can be obtained from the pretest participants Reactions to the demands of the new assessment can identify modi cations or improvements to the performance task An investigation of the responses and sources of variance can also provide important guidance for the development of materials to facilitate candidate preparation Evaluation of pretest results across many tasks built using a principled design can lead to improvements in task design templates, reducing irrelevant variation Finally, a pretest program can build support among program stakeholders in educational, regulatory, or industry settings for the proposed innovation in the test The AICPA conducted a pretesting program in universities and colleges during the development of the computer-based Uniform CPA Examination Signi cant program resources (staff and money) were required to coordinate the overall program However, there was extensive reliance on collaboration with the accounting faculties As a result, this endeavor not only provided important information about the new assessments, but also engendered professional support for the new test The pretest program allowed our assessment to be given at over 200 different schools across the country in just the initial two years The experiences that students had with the new assessment and the buzz on university campuses about the new test were invaluable in reducing anxiety and dispelling misconceptions about the changes to the testing program as well as in generating excitement and support for the new test design Faculty and students alike gained an understanding of what the new test was like nd became spokespersons in support of the innovations. . 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