52 lines
1.2 KiB
Rust
52 lines
1.2 KiB
Rust
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//! SM3 → rustls `crypto::hash::Hash` / `crypto::hash::Context`
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use alloc::boxed::Box;
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use rustls::crypto::{self, HashAlgorithm};
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use crate::sm3::Sm3Hasher;
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/// 静态 SM3 哈希实现
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pub(crate) static SM3: Sm3Hash = Sm3Hash;
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pub(crate) struct Sm3Hash;
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impl crypto::hash::Hash for Sm3Hash {
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fn start(&self) -> Box<dyn crypto::hash::Context> {
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Box::new(Sm3Context(Sm3Hasher::new()))
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}
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fn hash(&self, data: &[u8]) -> crypto::hash::Output {
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crypto::hash::Output::new(&Sm3Hasher::digest(data))
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}
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fn output_len(&self) -> usize {
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32
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}
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fn algorithm(&self) -> HashAlgorithm {
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// Reason: SM3 尚无 IANA TLS HashAlgorithm 标准编号，暂用 Unknown(0x07)
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HashAlgorithm::Unknown(0x07)
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}
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}
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struct Sm3Context(Sm3Hasher);
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impl crypto::hash::Context for Sm3Context {
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fn fork_finish(&self) -> crypto::hash::Output {
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crypto::hash::Output::new(&self.0.clone().finalize())
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}
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fn fork(&self) -> Box<dyn crypto::hash::Context> {
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Box::new(Sm3Context(self.0.clone()))
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}
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fn finish(self: Box<Self>) -> crypto::hash::Output {
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crypto::hash::Output::new(&self.0.finalize())
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}
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fn update(&mut self, data: &[u8]) {
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self.0.update(data);
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}
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}
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