Skip to main content

Set minimum size of symmetric encryption


The symmetric encryption mechanism must use a minimum key size of 128 bits.


As the key size increases, the number of possible key combinations grows significantly. Each additional bit in the key size doubles the number of possible keys. A 128-bit key provides a larger key space compared to shorter key sizes, making it more resistant to brute force attacks. Widely used symmetric encryption algorithms, such as Advanced Encryption Standard (AES), use a 128-bit key size as the default or minimum recommended key length.

Supported In​

This requirement is verified in following services




free trial

Search for vulnerabilities in your apps for free with Fluid Attacks' automated security testing! Start your 21-day free trial and discover the benefits of the Continuous Hacking Essential plan. If you prefer the Advanced plan, which includes the expertise of Fluid Attacks' hacking team, fill out this contact form.