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Encryption is the most effective way to achieve data security. Encryption was originally used on the Web to send coded messages back and forth; it is now used primarily for credit card transactions.
The number of bits used in the code reflects the complexity of the mathematical equation used to encrypt the data.
To read an encrypted file, you must have access to a secret key or password which will allow you to decrypt the file data. Key lengths are measured in the number of binary bits in them.
For example, a one-bit key could have the values of only 0 or 1. A two-bit key could have the binary values 00, 01, 10, or 11 (that is, 0, 1, 2, or 3, in decimal).
What is 40-bit Encryption?
40-bit encryption refers to the size of the key used to encrypt a message
This form of security would take one high-powered machine approximately one year (or two machines 6 months, etc.) to break one encrypted message, and thus, gain access to whatever is encrypted in that data
What is 128-bit Encryption?
128-bit encryption refers to the size of the key used to encrypt a message, and is an exceptionally safe form of security for Internet and data content
128-bit encryption provides a significantly greater amount of cryptographic protection than 40-bit encryption. Some experts have estimated it would take longer than the estimated life of our universe to break a 128-bit encrypted message.
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