# Function crypto::hkdf::hkdf_extract [−] [src]

    pub fn hkdf_extract<D: Digest>(
        digest: D,
        salt: &[u8],
        ikm: &[u8],
        prk: &mut [u8]
    )

Execute the HKDF-Extract function. Applications MUST NOT use this for password hashing.

# Arguments

- digest - The digest function to use.
- salt - The optional salt value (a non-secret random value) to use.
- ikm - The input keying material to use.
- prk - The output buffer to fill with a digest.output_bytes() length pseudo random key.

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