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updated variable comment

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mamoniot 2023-02-22 14:25:32 -05:00
commit 0721e6f0db
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zssp/src/zssp.rs
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@ -1241,7 +1241,7 @@ fn hmac_sha384_2(key: &[u8], a: &[u8], b: &[u8]) -> [u8; 48] {
/// Cryptographically this isn't meaningfully different from HMAC(key, [label]) but this is how NIST rolls.
fn kbkdf<const OUTPUT_BYTES: usize>(key: &[u8], label: u8) -> Secret<OUTPUT_BYTES> {
//These are the values we have assigned to the 5 variables involved in https://csrc.nist.gov/publications/detail/sp/800-108/final:
// K_in = key, [i]_2 = 0x01, Label = 'Z'||'T'||label, Context = 0x00, L = 0x0200
// K_in = key, i = 0x01, Label = 'Z'||'T'||label, Context = 0x00, L = (OUTPUT_BYTES * 8)
Secret::<OUTPUT_BYTES>::from_bytes(
&hmac_sha512(
key,