What are the best practices for HMAC security?
An example of an AI chatbot conversation about HMAC security best practices.
What are the best practices for HMAC security?
To ensure HMAC security, use a strong secret key, choose a secure hash function, and regularly rotate your keys.
How long should the secret key be?
The secret key should be at least as long as the hash output; for SHA-256, that means a key of at least 256 bits.
Should I use a different key for each application?
Yes, using unique keys for different applications enhances security and limits exposure in case of a breach.
What hash functions are recommended for HMAC?
SHA-256 and SHA-3 are widely recommended for HMAC due to their security and performance.
How often should I rotate my HMAC keys?
It's advisable to rotate your HMAC keys regularly, such as every 6 to 12 months, or immediately after a suspected compromise.
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