Key derivation function
An algorithm that derives cryptographic key material from input secrets and contextual data.
In more detail
A KDF turns inputs such as a secret, password or salt into key material for a particular purpose. Password-based designs can make each guessing attempt more expensive. They still start with the supplied secret, so a weak password or exposed input is not magically fixed by deriving a key from it.
How you might use it
Your wallet processes the password and salt through a password-based KDF before using the resulting key to encrypt its local file.
- Short name
- KDF
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