AES - 256 Advanced Encryption Standard
Trust AES 256 Bit Encryption
AES‑256 uses a symmetric block cipher design with a fixed 128‑bit block size and a 256‑bit encryption key. The larger key size dramatically increases cryptographic strength, making brute‑force attacks computationally impractical.
With 2²⁵⁶ possible key combinations, AES‑256 provides an extraordinarily high level of protection—even against advanced attackers and state‑level threats.
Overview: Performance and Flexibility
While AES‑256 provides the strongest AES security level, it remains highly efficient. Software‑based AES‑256 implementations offer flexibility and portability across platforms.
AES‑256 is recognized globally as a gold standard for encryption. Its combination of strength, efficiency, and widespread adoption makes it a preferred choice for organizations that cannot compromise on data security.
Platforms
Algorithm Availability:
ARMv9A, ARMv8A, ARMv8A, ARMv7M4/7 | x86_64 devices.
Other configurations are available upon request.
Features
- Support of HMAC-SHA, MD5, and AES-GCM (RFC 7714) Authentication types.
- Support of Counter, F8, CBC, and AES-GCM (RFC 7714) Encryption types.
- Support for packet replay protection.
- Compliance with RFC3711 and RFC7714.
- The AES encryption standard was approved by the National Security Agency (NSA) to protect both secret and top-secret government information.
- AES 256 used extensively in government and military applications, as well as by businesses operating in highly regulated industries.
- It has since become an industry standard for encrypting information.
- It is an open standard, which means it can be used for public, private, commercial, and non-commercial implementations.
- AES-256 encryption is virtually uncrackable using any brute-force (trial-and-error) method.
Description
AES is a symmetric block cipher that the U.S. government selects to protect classified data. Advanced Encryption Standard 256 Bit (AES-256) is a United States government standard algorithm for encrypting and decrypting data.
256 bit encryption is a security protocol that encrypts and decrypts the data exchanged between the browser and the server using the 256-bit encryption key.
AES‑256 encrypts data through a series of 14 transformation rounds, each performing complex mathematical operations that include:
- Byte substitution
- Row shifting
- Column mixing
- Key expansion and addition
These repeated transformations ensure that even small changes in the plaintext or key produce completely different ciphertext, providing strong resistance against cryptographic analysis.
About AES-GCM
AES-GCM (Advanced Encryption Standard Galois/Counter Mode) is a widely adopted encryption method that delivers both data confidentiality and authentication in a single cryptographic operation. It protects sensitive information from unauthorized access while ensuring that data has not been modified during transmission or storage.
AES-GCM encryption is a secure authenticated encryption standard that protects sensitive data by combining confidentiality, integrity, and authentication in a fast, efficient cryptographic process. As organizations increasingly rely on cloud services, online transactions, and real-time communications, AES-GCM has become a preferred encryption standard due to its strong security, efficiency, and high performance.
AES-256 standard is optional encryption feature in our Linux VoIP Engine™ build.