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All about Encryption

All about Encryption

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Home Page > Computers > Security > All about Encryption

All about Encryption

Posted: Jan 21, 2010 |Comments: 0
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Encryption

Encryption and science and art of writing messages in encrypted form or in code. And part of a field of study that deals with secret communications, used, among other purposes, to:

• authenticate the identity of users;
• authenticate and protect the confidentiality of personal communications and commercial transactions and banking;
• protect the integrity of electronic funds transfers.

A message encrypted by an encryption method should be private, that is, only those who sent and received that should have access to the contents of the message. In addition, a message should be, that is, the person who received it must verify that the sender and even someone who claims to be and be able to identify whether a message may have been modified.

The current encryption methods are safe and effective and based on the use of one or more keys. The key and a string that can contain letters, digits and symbols (such as a password), and and converted into a number, the methods used to encrypt and decrypt messages.

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Currently, cryptographic methods can be divided into two broad categories, according to the type of key used: a single key cryptography and public key cryptography and privacy.

What is encryption of unique key?

A single key cryptography uses the same key to both encode and decode messages. Although this method is quite efficient in relation to the processing time, ie the time taken to encode and decode messages, the main disadvantages is the use of a secure environment for the key can be shared between persons or entities wishing to exchange encrypted information.

What is cryptography of public and private key?

The public key cryptography and private uses two different keys, one to encode and decode messages to another. In this method each person or entity has two keys: one public, which can be freely disseminated, and one private, which must be kept secret by its owner.

Messages encoded with the public key can only be decrypted using the corresponding private key.

Be the example, where Joseph and Mary want to communicate confidentially. So they have to perform the following procedures:

1. José encodes a message using the public key of Mary, which is available for the use of any person;

2. Once encrypted, José sends the message to Mary, through the Internet;

3. Maria receives and decodes the message using its private key, and that only their knowledge;

4. If Mary want to answer the message, you must perform the same procedure, but using the public key of Joseph

Although this method has much lower performance compared to processing time, when compared with the encryption key only, has the major advantage of free distribution of public keys, not requiring a secure environment so that keys are combined in advance.

Moreover, it can be used to generate digital signatures.

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Luis Miguel -
About the Author:

Luis miguel love software especially the POS Software system. Visit this at POS Software system and see the Pos Software

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Hi, I accidently encrypted my TomTom GPS with Pointsec software encryption and now the device has blocked and I can’t connect it to my personal computer to restore the software… How can I decrypt?
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Configuring TLS for encryption of messages from Google

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Clip 05/01: Brian Holyfield, Gotham Digital Science Hacking a Web service generally is not rocket science. But what if the Web service requires that messages are sent using a binary protocol? What is required encryption, but you have shown no key? These are some common scenarios that are likely to encounter when they try to create a Web service using Windows Communication Foundation (WCF), built for the attack. Through a series of live demonstrations will show the presentation, how to recognize and attack the WCF web services and discuss tips and useful tools to facilitate testing of WCF services. Participants will leave with the skills necessary to effectively perform penetration tests against WCF applications. The following demonstrations will be performed live (time permitting): – Burp Plug-in for WCF binary messages (SOAP NBFS MC) – De-compilation of Silverlight XAP for the preservation of meta data WCF – Crafting Meta Data Exchange (MEX) applications recovery WCF metadata – communication with WCF WS-S Message Encryption Anonymous – create your own WCF Test Client (in less than 10 lines of code) – TCP port probing the WCF duplex callback channels Presentation Outline: 1. Overview 2 WCF Silverlight WCF Web Services 2. MC NBFS Protocol 2b. Meta Data retrieval WCF 2c. Analyze Insurance WCF Silverlight XAP third third Binding. WS-S 3b Message Encryption. Customers fourth custom WCF Services WCF Duplex fourth. Call Back offensive channels for more information and presentation …
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Portal delivery of testing and delivery to the inbox Google Message Encryption

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Free, powerful and easy to use encryption software for files and email from the PC-Encrypt Inc RELEASED

Free, powerful and easy to use encryption software for files and email from the PC-Encrypt Inc RELEASED

(Business Wire) June 26, 2004

Well protected private / confidential information on laptops and in email correspondence with free software provided for PC ENCRYPT Inc.

email these days is multi-virus and SPAM. Hackers are constantly trying to access your computer. It is obvious that the privacy of users is in great danger.

start getting information in less time than it takes to read this message.

PC V9.1 encrypt to encrypt files / folders not only the strongest encryption available, but now also faster to clean / delete and status indicators improved. Files of several gigabytes can now be included with the automatic processing of files in Windows Restrictions apply.

book, users will never remember a password, and free “Key-Exchange” service allows you to send a password to another user (s) in the world, easily, safely, immediately.

INC has been providing strong encryption, robust universal security software encryption since 1998. For more information, visit http://www.pc-encrypt.com, or call 905-336-2981.

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Vocus, PRWeb and advertising Wire are trademarks or registered trademarks of Vocus, Inc. or Vocus PRW Holdings, LLC.

MultiPad Message Encryption System

This is a message encryption system i have spent the last few days working on. It requires all three parts of the message to decrypt (Message, Keys, message specific program) its rather difficult to decrypt. And the password that is used to open the application is hashed so it cannot be easily stolen.

Torpisc Presentation. (C) Torpisc. www.torpisc.com: (Shafie Software Solutions. All Rights Reserved.) This presentation is a brief overview of Torpisc. It gives an overview of the cycle of design, test, and use of Torpisc to anyone who is not familiar with this application. After watching this video please make sure that you watch the “Torpisc Design Demo”, “Torpisc Testing Demo”, and “Torpisc Usage Demo” presentations to learn more about Torpisc. If you just want to use Solitaire in stealth mode and don’t care about designing and testing Solitaire variants, then skip the other presentations and just watch “Torpisc Usage Demo Part I” and “Torpisc Usage Demo Part II”.

Encryption-Decryption Challenge

Be the first to either comment or pm me the exact message contained within the encrypted message in this video will win $50 (US currency). And, yes, I’m quite serious–your answer must be exactly correct, and you must be the first to submit the correct answer in order to win.

Good luck–as soon as someone wins, it shall be posted.

Rate, comment, subscribe, and enjoy.

Duration : 0:2:15

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SendAnywhere Encryption Tutorial

Secure HIPAA MaxMD mdSendAnywhere Messaging. Send Secure Encrypted eMail from Anywhere. HIPAA and HITECH Compliant. Electronic Safe Communication. mdEmail Client selection of Secure Send. Confirmation of Secure Send. Encrypted Message. User Name and Password Required. View Encrypted Message. mdEmail Login Page. Authenticate. Attachments can Also be Viewed.
No Special Equipment Required to Send or to View Encrypted Message.

Duration : 0:4:54

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Encrypt messages with OpenGPG

Learn how to install free encryption software, create a personal private and public key pair. Import a friend’s public key and encrypt a message for only their eyes.

http://ComputerRenovations.com

Sources:

http://www.gpg4win.org/

http://www.gnupg.org/

Duration : 0:5:33

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How To: Get eircom wireless code (WEP)

This video explains how easy it is to get the key without having to ring up Eircom just enter 192.168.1.254 into you already connected computer and click on the wireless tab to find the “encryption key” in the center!

http://www.filefront.com/15682449/Eircom_Thinger.zip

SUBSCRIBE!!

Any other questions just send me a message for an answer!!

Duration : 0:2:58

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Encrypted Image CONTEST (read instructions)

That is an application of a pixel-analyser program I made, now used for a contest purpose.

In this video there’s hidden a message in 10 seconds fragments, between the ‘vid start’ and ‘vid end’ frames, that are just a reference.

How could you find it?

Easy, just pick the first image (in the first 10 seconds following ‘vid start’) and save it.
2.Do the same with three more.
3.Do pixel-comparison between the first image saved and the others consecutively to find the answer! (There might be some ‘noise’, but the message will be easy to read)

Post it the first as a comment to be the WINNER!!! (no prize but the pride of winning)

AS requested, find the hi-res original vid here:

http://www.jukimv1986.com/ENC.zip

it’s easier to work with it, as it is the original video file (no pixel conversion errors, perfect timing)

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Other frightening uses of this:
-Subliminal messages
-Mind Control
-Terrorist or hackers messaging
-…?

Duration : 0:0:43

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