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Best practices for key derivation
blog.trailofbits.com | blog | #cryptography | #api-security | #best-practices | #trail-of-bits | #key-derivation | #kdf | #hkdf
Summary
Trail of Bits covers KDF best practices: HKDF extraction and expansion, misuse patterns like the Flickr API signature forgery, and guidance on salts, info parameters, and combining keys.
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