2. Inkjet cartridges supplied for 'free' with inkjet printers are rarely full

OEM ink cartridges supplied with printer are designed only to provide enough ink for a few pages to get you 'started'. From manufacturer's perspective this is a great selling technique, as free cartridges can often make difference between a retailer closing a sale or losing it…and once you've got printer manufacturer is going to make money out of you every time you order more OEM ink! Supplying ink cartridges that are not full shortens timeframe over which consumers start ordering OEM ink cartridges too. This brings manufacturer into profit on each customer much more quickly than had they supplied full cartridges for free with printer.

3. Consumers have a choice about which inkjet cartridges to buy

It's true! Contrary to popular belief consumers are not obliged to purchase expensive OEM ink cartridges from manufacturer. They can in fact opt to buy cheaper 'compatible' ink cartridges or remanufactured cartridges, often realizing savings on their ink purchase of between 50% and 75%!! All major inkjet cartridge brands are covered, including Apple, Canon, Hewlett Packard, Lexmark, Brother, Epson, IBM and Xerox. What's more they do job just as well as OEM cartridges but at a much lower cost!

4. Compatible inkjet cartridges DO NOT automatically void a printer's warranty

Regardless of what you might have heard compatible inkjet cartridges WILL NOT automatically void your printer warranty. In fact, it is ILLEGAL for manufacturers in United States

If recipient does not know decryption key in advance, then sender generates and sends it. The key can be protected in transit by encrypting method or key agreement.

If plaintext data to encrypt is an XML element or content, you encode it using UTF-8 and perform any necessary transforms to it, otherwise, if it is an external resource, you simply consider it as an octet sequence. You then encrypt data, creating CipherValue, which you place in EncryptedData.

Care must be taken when signing content that may later be encrypted; clearly; content must be restored to exactly original plaintext form for signature to validate properly. To restore plaintext in signed content, use decryption transform method for XML signature defined by XML encrypt joint W3C and IETF working group.

This transform also allows specifications of XML fragments that were encrypted and then signed with rest of document and, therefore, are not decrypted to validate signature. Often, encrypted fragments are removed from signed information by using XPATH transform in reference element, since meaningful information is plaintext.

We can sign plaintext version of an encrypted element by including appropriate reference element pointing to it. When signed document is confidential and encrypted after being signed, you should also protect against surreptitious forwarding in which recipient forwards signed confidential document to a competitor, encrypted by competitor public key, trying to make it look as if sender sent confidential information. To prevent surreptitious forwarding, signer should append recipient identities to document being signed.