Public key (asymmetric) cryptography is a system based on pairs of keys called public key and private key. The public key is published while the private key is kept secret with the owner. The need for a sender and a receiver to share a secret key and trust some communications channel is eliminated. This concept was introduced in 1976 by Whitfield Diffie and Martin Hellman.

Before any information is uploaded into your CopySafe, it is automatically compressed and encrypted. You will have a password, also called an encryption key, for accessing your data. It is the only way to decrypt your files after retrieval. It is very important to notate this password/key and keep it in a safe place for future reference.

NOTE: According to current mathematical & cryptographic knowledge, this section applies approximately equally to DH & RSA keys. (If anything, DH keys are more secure, but the difference currently appears marginal). Security. One of key factors of the strength of systems like PGP is the size of the public / private key pairs. For the majority of users, the main factor in the selection of PK size will be security.

ADSL line can cope with transferring a set number of bits per second – the bitrate – regardless of direction. This can be varied to allow more bits to download rather than upload and vice versa. ADSL is intended for client computers rather than servers it has been configured to increase the download speed which in turn reduces the upload speed. This type of connection is known as asymmetric.

The story begins: When Julius Caesar sent messages to his trusted acquaintances, he didn't trust the messengers. So he replaced every A by a D, every B by a E, and so on through the alphabet. Only someone who knew the ''shift by 3 rule could decipher his messages. A cryptosystem or cipher system is a method of disguising messages so that only certain people can see through the disguise. Cryptography is the art of creating and using cryptosystems.

Very Important. Without it, your backup data will remain encrypted and unreadable. All data that is selected for backup is encrypted before leaving your computer. We have no way at all of reading this information should you lose your encryption key.

If you need to change your password or encryption key, select either the Change Password or Change Encryption Key buttons from the application that is also supplied by Your-Data. Changing your encryption key involves intensive processing on our servers and may take several minutes. It should therefore not be done unless your encryption key was compromised.

DigiVault, security is of utmost importance. Therefore, if you misplace your 'encryption key' we will be unable to restore any of your data stored on our servers.

We cannot help you if you lose your Personalized Encryption Key. Your encryption and decryption key is designed for your security. If you do not have access to the original software and do not have the printed page that you were prompted to print during the installation, then you willl not be able to access your backup! With 128-bit AES Encryption there is no "reset" key.

No. We cannot recover your encryption key, this is chosen and set by you and is maintained by you and your system, making it invisible to us and anyone else for that matter. top

This depends on the server software and browsers used. Modern browsers and servers (from 2000 onwards) encipher the data with 128-bit, thus guaranteeing a very high degree of protection. When you are purchasing a SSL certificate, make sure it is suitable for this 128-bit encryption. This way, you provide visitors to your website with optimum protection.

Since data never leaves your computer unencrypted, you must have your password/encryption key to recover any files. If you have lost your password/encryption key, e-mail us at support@eCopySafe.com

Encryption garbles your data by using irreversible mathematical functions. It is simply the encoding of data so that it cannot be read by anyone who does not know the password that decodes it.

You can generate a new key pair using the silcd command with the -C option. When SILC Server is installed a key pair is generated automatically for you. However, it is suggested that you check the information found in that key and generate a new key pair if the information is incorrect. You can check the information of your public key by giving command: silc -S file.pub. If you want to generate a new key pair then you can give for example command: silcd -C . --identifier="UN=silc-oper, HN=silc.

Use WonderCrypt to create your private and public key pair. WonderCrypt will also create a Certificate Signing Request Log on to a Certificate Authority website to get a digital certificate. In this case the browser e.g. Internet Explorer will create a private key and public key pair, the browser will automatically submit your public key to the Certificate Authority for signing. You will receive back the signed public key that you will get installed in the browser automatically.

To select the public-key algorithm, choose "Create..." from te "Keys" menu and choose the the public-key algorithm from the "Algorithm" popup menu.