How does asymmetric (public key) encryption keep data secure?

woman looking at encrypted files

The Advanced Encryption Standard (AES) is a powerful symmetric encryption algorithm that is used to secure data transmission over computer networks. Developed by the National Institute of Standards and Technology (NIST) in 2001, AES replaced the Data Encryption Standard (DES), which had become vulnerable to attacks due to advances in computing technology.

AES uses a fixed block size of 128 bits and supports three key sizes: 128, 192, and 256 bits. Among these, AES 128 is considered the best choice for most applications due to its superior performance and security.

One of the main advantages of AES 128 is its speed. The algorithm is designed to be highly optimized for both software and hardware implementation, making it very fast and efficient. AES 128 encryption and decryption can be performed in real-time on most modern computers and mobile devices, without any noticeable delay. This is especially important for applications that require fast data transmission, such as video streaming, online gaming, and VoIP calls.

Another advantage of AES 128 is its security. AES has been extensively studied and analyzed by security experts around the world, and no practical attacks have been found that can break the encryption. AES 128 uses a complex encryption algorithm that involves multiple rounds of substitution, permutation, and key expansion, making it highly resistant to brute-force attacks. The key size of 128 bits provides sufficient security for most applications, while still allowing for efficient key management.

Furthermore, AES 128 is widely supported by software and hardware platforms, making it easy to integrate into existing systems. It is the default encryption algorithm used by many popular security protocols, such as SSL/TLS, SSH, and IPsec. This means that AES 128 can be used to secure data transmission over the internet, VPNs, and local networks, ensuring end-to-end encryption and data integrity.

In summary, AES 128 is considered one of the best choices for most applications due to its superior speed, security, and compatibility. Its use is recommended for applications that require fast data transmission, strong encryption, and efficient key management. While AES 192 and 256 may offer slightly stronger security, they come at a cost of increased complexity and performance overhead, which may not be necessary for most applications. As such, AES 128 remains a popular and widely used encryption algorithm, trusted by security experts and industry professionals alike – and this is why eCrypter uses it for all file sharing…