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You do not need to be an expert to use AES Crypt, nor do you need to understand cryptography. AES Crypt is designed to be as simple to use as possible, yet still provide the strongest encryption strength available. With over a million downloads, AES Crypt has made it easy for so many people to secure information.
Using a powerful bit encryption algorithm, AES Crypt can safely secure your most sensitive files. Once a file is encrypted, you do not have to worry about a person reading your sensitive information, as an encrypted file is completely useless without the password. They are known as symmetric and asymmetric also known as public key. Symmetric-key algorithms uses the same single cryptographic key for both encryption and decryption, similar to the mechanical device we discussed last time called the Scytale.
This is the faster method, but delivering the key securely to the third party must be managed to ensure safety. Asymmetric cryptography or public-key encryption requires the use of two keys, one that is private and another that is public. The public key is used to encrypt data, but does not need to be secured, as data cannot be decrypted without the private key.
Note that different algorithms use different key lengths, where the longer the key the more secure the system as it is harder to break. Blocks To make things even more secure, data is encrypted in blocks, which are a sequence of bits. Common sizes range from 56, 64, , and Using bit block sizes is particularly recommended as a better practice when encrypting files larger than 32 gigabytes up to Exabytes.
This standard has been adopted worldwide for symmetric encryption for data at rest. AES is a symmetric block cipher, operating on fixed-size blocks of data. This successor to the DES cipher algorithm increases both the block and key size compared with DES, making it more robust. Doubling the block size increases the number of possible blocks by a factor of , making it much more secure than the older DES standard. The length of these keys means that brute-force attacks on AES are not possible at this time.
While there are other encryption protocols including open source ones such as TwoFish, BlowFish and 3DES, the advantage of working with an international standard is that the increased visibility leads to more testing and an overall more proven system. AES has undergone rigorous testing and survived numerous hacking attempts for years and still has never been broken.
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AES – The Advanced Encryption Standard Explained
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