The Great Ink Cartridge Conspiracy!

Written by Pronto Ink


Buying an inkjet printer these days is no big deal. A reliable printer can be acquired very easily through a store or online for as little as $50. Some suppliers are even giving away inkjet printers on promotions or as free incentives when buying other products. Onrepparttar face of it, it seems like too good an opportunity to pass by - a worthwhile investment you might say.

But, much like a traditional camera that uses film, an inkjet printer is only 'cheap' before you start using it. The cost of keeping it in ink soon mounts up, especially when you're buying OEM (original equipment manufactured) inkjet cartridges as recommended byrepparttar 105108 printer manufacturer. Before you know it you'll find that you've actually spent more onrepparttar 105109 ink cartridges than you did onrepparttar 105110 purchase ofrepparttar 105111 inkjet printer itself!

If you're in this position - and let's face it, most of us are - what follows could be quite a revelation!

Five things inkjet printer manufacturers DON'T want you to know…

1. Inkjet printer manufacturers make their money selling ink cartridges NOT inkjet printers

Selling recommended OEM ink cartridges is a very lucrative business for inkjet printer manufacturers. They know that once you've purchasedrepparttar 105112 printer you'll be coming back to them time and time again to buyrepparttar 105113 ink that they recommend inrepparttar 105114 user guide and any other literature that accompaniesrepparttar 105115 printer. Fair enough you might say, but given thatrepparttar 105116 price of manufacturing an OEM ink cartridge is only a few cents why arerepparttar 105117 cartridges so expensive? The answer is that ink cartridges are in fact stuffed full of manufacturer profit. It is where they make their money, and is precisely why they are happy to give away an inkjet printer for nothing.

Overview of XML Encryption

Written by Pawan Bangar


XML encryption classifies a course of action for encrypting plain text data, generating ciphertext, and decryptingrepparttar ciphertext to retrieverepparttar 105106 plaintext data.

Bothrepparttar 105107 and are optional i.e.repparttar 105108 sender and receiver may agree onrepparttar 105109 encryption method and key in advance. Several elements userepparttar 105110 definitions fromrepparttar 105111 DSIG.

Ifrepparttar 105112 recipient does not knowrepparttar 105113 decryption key in advance, thenrepparttar 105114 sender generates and sends it. The key can be protected in transit by encrypting method or key agreement.

Ifrepparttar 105115 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 encryptrepparttar 105116 data, creating CipherValue, which you place in EncryptedData.

Care must be taken when signing content that may later be encrypted; clearly;repparttar 105117 content must be restored to exactlyrepparttar 105118 original plaintext form forrepparttar 105119 signature to validate properly. To restorerepparttar 105120 plaintext inrepparttar 105121 signed content, userepparttar 105122 decryption transform method for XML signature defined byrepparttar 105123 XML encrypt joint W3C and IETF working group.

This transform also allows specifications of XML fragments that were encrypted and then signed with rest ofrepparttar 105124 document and, therefore, are not decrypted to validaterepparttar 105125 signature. Often, encrypted fragments are removed fromrepparttar 105126 signed information by usingrepparttar 105127 XPATH transform inrepparttar 105128 reference element, sincerepparttar 105129 meaningful information isrepparttar 105130 plaintext.

We can signrepparttar 105131 plaintext version of an encrypted element by includingrepparttar 105132 appropriate reference element pointing to it. Whenrepparttar 105133 signed document is confidential and encrypted after being signed, you should also protect against surreptitious forwarding in whichrepparttar 105134 recipient forwardsrepparttar 105135 signed confidential document to a competitor, encrypted byrepparttar 105136 competitor public key, trying to make it look as ifrepparttar 105137 sender sentrepparttar 105138 confidential information. To prevent surreptitious forwarding,repparttar 105139 signer should appendrepparttar 105140 recipient identities torepparttar 105141 document being signed.

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