mirror of https://github.com/ctz/rustls
52 lines
1.3 KiB
Rust
52 lines
1.3 KiB
Rust
#![allow(clippy::duplicate_mod)]
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use super::ring_like;
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use crate::crypto;
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use alloc::boxed::Box;
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#[cfg(feature = "tls12")]
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pub(crate) static HMAC_SHA256: Hmac = Hmac(&ring_like::hmac::HMAC_SHA256);
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#[cfg(feature = "tls12")]
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pub(crate) static HMAC_SHA384: Hmac = Hmac(&ring_like::hmac::HMAC_SHA384);
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#[cfg(test)]
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#[allow(dead_code)] // only for TLS1.2 prf test
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pub(crate) static HMAC_SHA512: Hmac = Hmac(&ring_like::hmac::HMAC_SHA512);
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pub(crate) struct Hmac(&'static ring_like::hmac::Algorithm);
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impl crypto::hmac::Hmac for Hmac {
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fn with_key(&self, key: &[u8]) -> Box<dyn crypto::hmac::Key> {
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Box::new(Key(ring_like::hmac::Key::new(*self.0, key)))
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}
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fn hash_output_len(&self) -> usize {
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self.0.digest_algorithm().output_len()
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}
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fn fips_mode(&self) -> bool {
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super::fips_mode()
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}
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}
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struct Key(ring_like::hmac::Key);
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impl crypto::hmac::Key for Key {
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fn sign_concat(&self, first: &[u8], middle: &[&[u8]], last: &[u8]) -> crypto::hmac::Tag {
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let mut ctx = ring_like::hmac::Context::with_key(&self.0);
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ctx.update(first);
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for d in middle {
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ctx.update(d);
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}
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ctx.update(last);
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crypto::hmac::Tag::new(ctx.sign().as_ref())
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}
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fn tag_len(&self) -> usize {
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self.0
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.algorithm()
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.digest_algorithm()
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.output_len()
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}
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}
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