Encrypting html pages: encrypt html code and content
What is HTML encryption?
Html encryption is, of course, the technique by which information that has been encoded in HTML (a derivative of SGML, for those who are technically inclined, and therefore one of the wide family of markup languages that include XML and its many sub derivatives).
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There is nothing special about encrypting html since it is merely a piece of digital information that can be encrypted without any concern for what the underlying content is or means. This is in contrast to XML encryption, where an amazingly complex and complicated structure has had to be created in order to relate information items to each other. This happens because in XML, as opposed to html, it is possible to have embedded references to other data items, and if you encrypt those, and later decrypt them, to the unsuspecting viewer, the links resolve and information that was never protected at all can be shown as if it were guaranteed all the time.
So encrypting html can be a very powerful way of assuring a recipient that the information that they are seeing is genuine, has not been altered, and can be relied upon. But only provided that html encryption is not used to appear to protect information that is actually not on the html page at the time of applying the html encryption, but is resolved later. Because that would be a grave misuse of the technique.
Generally speaking, people receiving html pages are not sophisticated in the internal issues of exactly and precisely how information is processed by computer systems. Indeed, and not to put too fine a point on it, there is no shortage of IT professionals who do not know either. In fact, unless you can inspect the actual html code itself you cannot be utterly certain as to what may have been encrypted, and what was not, and should not be relied upon.
So html encryption is a valuable method and technique, but it has some problems if it carries references to information that was not encrypted at the same time as the underlying html. If the other information was also encrypted then the user can place reliance upon it, and otherwise not.
As with many web services, there are two distinct aspects to protecting an html page. To the programmer, the most obvious aspect is the underlying code (including scripts, references to URLs and email addresses) to stop other people copying the underlying content rather than what is displayed by the web pages. However, the second aspect, the visual representation of the information itself (text, pictures, animations, etc.) are themselves copyright works and the managers of a business may see those as equally, if not more important than how the image was created. For example, the appearance of a magazine is probably more important than the underlying coding that presents it.
Thus html encryption can be used to protect the underlying encoding but cannot be used to enforce digital rights management (DRM). Various products are available that just ‘protect’ the underlying code but because of the way these products work (delivering the decryption key along with the encrypted page by a simple script) they are vulnerable to straightforward attacks that appear well documented.
By encrypting HTML pages and code using HTML encryption software you can control who can view your web pages, what they can do with them (copy, print, etc.) and when they can no longer be viewed (expire).
Locklizard no longer provides HTML encryption software. We used to provide HTML encryption (Locklizard Protector) that encrypts both the underlying code and the page content that is displayed, does not deliver the decryption key with the web pages and uses digital rights management (DRM) controls and US Government approved AES encryption to prevent unauthorized use and misuse of your HTML content. This however only worked with static HTML pages and the majority of web sites now only deliver dynamic pages using PHP or ASP scripting.
We can however protect PDF documents for viewing in a Web browser (secure Web Viewer) or in a dedicated offline secure PDF Viewer. The reality is that most web site content is not of a confidential or revenue generating nature (i.e. HTML based ebooks or training courses) so Safeguard PDF Security just protects those documents that are. Safeguard PDF Security enables you to share and sell documents securely and you can make protected documents freely available from your web site for download without the worry that they will be stolen or distributed without your authorization.
We needed to deliver e-book versions of our handbooks while not compromising on security and digital rights. Safeguard PDF security is easy to use and intuitive.
The implementation was painless and we now have a greener, more secure way of distributing training manuals.
Locklizard’s PDF protection is exactly as described – the features are highly effective and I would give it 5 stars.
I would recommend Locklizard to others - their security is simple to use and fit for purpose. It meets common needs of businesses who have information they want to protect.
We would be happy to recommend Locklizard to any company needing a flexible way to secure PDF files.
Safeguard PDF Security has provided us with a very workable solution for sharing of information in a secure fashion. The support has been excellent and very accommodating.
We can cut accounts for a user five minutes before his class starts and he is ready to go. Happy smiling customer, while we still have security and personalized watermarking.
I have immense respect for the product and Locklizard provide great customer satisfaction and service.
We would recommend Safeguard to other companies for its security, cost and ease of use. It does what we expected it to do and more.
Ease of use is a bonus and the implementation was very easy. The product manual is excellent and Locklizard staff are very accommodating.
We sell a highly valued educational product in an open and competitive market so it was important to ensure we had effective security to protect our digital rights.
We highly recommend Locklizard - a professional company with a competitive and professional PDF Security product.
We would absolutely recommend both Locklizard as a company, and Safeguard PDF Security. It has transformed our study materials to the next level.
Not only did this increase sales, but we also believe that it has increased our customers’ ability to learn, which is even more important!
We would recommend Locklizard Safeguard to other companies that need to protect PDF reports. Customers have found the process of accessing the protected documents to be seamless.
Implementation was easy and technical support has been very responsive to requests for help.
Our company would without reservation recommend Locklizard. Their document DRM software opens up delivery of our new products in a timely fashion while knowing that the content will remain secure.
The return on investment to our company has been immediately evident.
We use Safeguard to make sure that documents cannot be opened outside our local network or from a unauthorized computer in order to copy or print the documents.
It is the most feature rich, affordable, & simple to use PDF security product on the market.
Safeguard PDF Security is simple to administer and meets our needs, consistently delivering secured manuals to our customers with ease.
Return on investment has been elimination of many man hours, printing resources and postage – it is estimated that costs decreased by 50% or more.
We would really recommend Safeguard PDF Security to every publishing company for managing ePubs or e-books securely. It is easy to secure PDF files and simple to distribute them to our authorized customers only.
Locklizard also provides a good customer support experience.
The ROI for us is incalculable. We have the security of knowing that our proprietary documents are secure. This is the entire value of our company.
I would most certainly recommend your PDF security product and already have. The ease of implementation was surprising.
We can now sell our manuals without the need to print them first, saving time, money and helping safeguard the environment.
We would recommend Safeguard PDF DRM – it is the perfect solution to sell and send e-documents securely whilst making sure someone cannot copy them.
We would recommend Locklizard to other companies without hesitation.
Their PDF DRM products provide a manageable, cost effective way to protect intellectual investment and they are always looking for ways to improve them. Moreover, their staff provide an excellent level of support.
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