Encryption software helps to you protect the privacy of your email messages, documents and sensitive files.
Why you need encryption software
• Sending sensitive messages and files over the Internet is dangerous as all emails are transmitted in an unsecured form. If you need to send sensitive information over the Internet you should encrypt it first.
With encryption and decryption software you can safely send sensitive messages and files
• Need to safely store sensitive information on your computer?
Encryption software works with both – text information and files. Just select what you want to encrypt, and encryption and decryption software helps you keep documents, private information and files in a confidential way.
Nowadays when more and more sensitive information is stored on computers and transmitted over the Internet, we need to ensure information security and safety. Encrypt sensitive information to protect your privacy!
One of the most common uses of encryption is encrypting emails. Sending sensitive messages, documents and files over the Internet is like sending a postcard as all emails are transmitted in an unsecured form. It doesn’t depend on if you send emails via public and private networks. Your message is totally open to interception by anyone along the way – so anybody – your ISP, your boss, etc. can read your emails. Even if you connect to your server and send your emails via SSL, it only means that your emails can’t be seen while transmitting between you and your server. When your email reaches your server, it can be seen by your email service provider. Then your server usually sends your email to the recipient in an unsecured way and your email can also be easily seen by anyone.
Private network, where email goes directly to a mail server and resides there until it is retrieved, also doesn’t provide necessary security level, as you email can be seen e.g. by network administrator, your boss, etc.
Of course, you may believe that your personal email does not contain any private information, but everyone has got something to keep in secret from his family, neighbors or colleagues. It could be financial, social, or professional secrets. There is really only one sure way to protect your email privacy – email encryption.
Encryption and decryption software
Encryption software categories:
– Disk encryption software
– File encryption software
Text encryption to encrypt text, messages, emails and instant messages
There are lots of encryption programs that could be used for both file and email encryption.
Data encryption is an essential part of protecting computer privacy as it ensures the privacy of information that you store on your computer or email by preventing third parties from recovering the original data.
With encryption software you can encrypt and decrypt the entire disk, files, folders, private messages, emals, etc.
When you choose encryption software, first of all check for the features that you really need depending on if you need to encrypt the entire disk, emails, files, etc. The more options encryption software offers, the more complicated it is. So encryption software specifically designed for email encryption is much easier than file encryption software that supports email encryption by transforming emails into files.
Symmetric Encryption (also known as private key encryption) is a type of encryption where the same secret key is used to encrypt and decrypt information or there is a simple transform between the two keys.
A secret key can be a number, a word, or just a string of random letters. Secret key is applied to the information to change the content in a particular way. This might be as simple as shifting each letter by a number of places in the alphabet. Symmetric algorithms require that both the sender and the receiver know the secret key, so they can encrypt and decrypt all information.
AES 256-bit key encryption
AES provides strong encryption and was selected by NIST as a Federal Information Processing Standard in November 2001 (FIPS-197). Currently, there are no computers that could break the encryption key in a reasonable amount of time (it will take millions of years). A password, or more precisely its hash (SHA 256), is used to protect the encryption key. Neither the password nor its hash is stored anywhere. If the password is not correct, it will be impossible to get the encryption key and consequently to decrypt information.
For more security and to prevent Brute Force attack some encryption tools allow you to encrypt the same text or file multiple times -just set number of passes for multiple encryption.
Public Key Encryption
Asymmetric encryption (Public Key Encryption) uses different keys for encryption and decryption. The encryption key is public so that anyone can encrypt a message. However, the decryption key is private, so that only the receiver is able to decrypt the message. It is common to set up ‘key-pairs’ within a network so that each user has a public and private key. The public key is made available to everyone so that they can send messages, but the private key is only made available to the person it belongs to.
The sender and the recipient must have the same software. The recipient makes a pair of keys – public key and private key (both keys can be unlocked with a single password). Public key can be used by anyone with the same software to encrypt a message. Public keys can be freely distributed without worrying since it is only used to scramble (encrypt) the data.The sender does not need the recipient’s password to use his or her public key to encrypt data. The recipient’s other key is a private key that only he or she can use when decrypting the message. Private key should never be distributed since the private key assures that only the intended recipient can unscramble (decrypt) data intended for him or her. The recipient can freely distribute the public key without worrying since it is only used to scramble the data.