mirror of
https://github.com/denoland/deno.git
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324 lines
8.8 KiB
Rust
324 lines
8.8 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::generic_error;
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use deno_core::error::AnyError;
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use deno_core::GarbageCollected;
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use digest::Digest;
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use digest::DynDigest;
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use digest::ExtendableOutput;
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use digest::Update;
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use std::cell::RefCell;
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use std::rc::Rc;
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pub struct Hasher {
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pub hash: Rc<RefCell<Option<Hash>>>,
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}
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impl GarbageCollected for Hasher {}
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impl Hasher {
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pub fn new(
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algorithm: &str,
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output_length: Option<usize>,
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) -> Result<Self, AnyError> {
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let hash = Hash::new(algorithm, output_length)?;
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Ok(Self {
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hash: Rc::new(RefCell::new(Some(hash))),
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})
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}
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pub fn update(&self, data: &[u8]) -> bool {
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if let Some(hash) = self.hash.borrow_mut().as_mut() {
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hash.update(data);
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true
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} else {
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false
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}
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}
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pub fn digest(&self) -> Option<Box<[u8]>> {
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let hash = self.hash.borrow_mut().take()?;
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Some(hash.digest_and_drop())
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}
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pub fn clone_inner(
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&self,
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output_length: Option<usize>,
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) -> Result<Option<Self>, AnyError> {
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let hash = self.hash.borrow();
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let Some(hash) = hash.as_ref() else {
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return Ok(None);
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};
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let hash = hash.clone_hash(output_length)?;
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Ok(Some(Self {
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hash: Rc::new(RefCell::new(Some(hash))),
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}))
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}
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}
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macro_rules! match_fixed_digest {
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($algorithm_name:expr, fn <$type:ident>() $body:block, _ => $other:block) => {
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match $algorithm_name {
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"blake2b512" => {
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type $type = ::blake2::Blake2b512;
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$body
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}
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"blake2s256" => {
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type $type = ::blake2::Blake2s256;
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$body
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}
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_ => crate::ops::crypto::digest::match_fixed_digest_with_eager_block_buffer!($algorithm_name, fn <$type>() $body, _ => $other)
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}
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};
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}
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pub(crate) use match_fixed_digest;
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macro_rules! match_fixed_digest_with_eager_block_buffer {
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($algorithm_name:expr, fn <$type:ident>() $body:block, _ => $other:block) => {
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match $algorithm_name {
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"rsa-sm3" | "sm3" | "sm3withrsaencryption" => {
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type $type = ::sm3::Sm3;
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$body
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}
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"rsa-md4" | "md4" | "md4withrsaencryption" => {
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type $type = ::md4::Md4;
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$body
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}
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"md5-sha1" => {
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type $type = crate::ops::crypto::md5_sha1::Md5Sha1;
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$body
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}
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_ => crate::ops::crypto::digest::match_fixed_digest_with_oid!($algorithm_name, fn <$type>() $body, _ => $other)
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}
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};
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}
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pub(crate) use match_fixed_digest_with_eager_block_buffer;
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macro_rules! match_fixed_digest_with_oid {
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($algorithm_name:expr, fn $(<$type:ident>)?($($hash_algorithm:ident: Option<RsaPssHashAlgorithm>)?) $body:block, _ => $other:block) => {
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match $algorithm_name {
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"rsa-md5" | "md5" | "md5withrsaencryption" | "ssl3-md5" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::md5::Md5;)?
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$body
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}
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"rsa-ripemd160" | "ripemd" | "ripemd160" | "ripemd160withrsa"
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| "rmd160" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::ripemd::Ripemd160;)?
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$body
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}
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"rsa-sha1"
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| "rsa-sha1-2"
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| "sha1"
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| "sha1-2"
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| "sha1withrsaencryption"
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| "ssl3-sha1" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha1);)?
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$(type $type = ::sha1::Sha1;)?
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$body
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}
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"rsa-sha224" | "sha224" | "sha224withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha224);)?
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$(type $type = ::sha2::Sha224;)?
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$body
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}
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"rsa-sha256" | "sha256" | "sha256withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha256);)?
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$(type $type = ::sha2::Sha256;)?
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$body
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}
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"rsa-sha384" | "sha384" | "sha384withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha384);)?
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$(type $type = ::sha2::Sha384;)?
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$body
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}
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"rsa-sha512" | "sha512" | "sha512withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha512);)?
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$(type $type = ::sha2::Sha512;)?
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$body
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}
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"rsa-sha512/224" | "sha512-224" | "sha512-224withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha512_224);)?
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$(type $type = ::sha2::Sha512_224;)?
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$body
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}
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"rsa-sha512/256" | "sha512-256" | "sha512-256withrsaencryption" => {
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$(let $hash_algorithm = Some(RsaPssHashAlgorithm::Sha512_256);)?
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$(type $type = ::sha2::Sha512_256;)?
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$body
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}
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"rsa-sha3-224" | "id-rsassa-pkcs1-v1_5-with-sha3-224" | "sha3-224" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::sha3::Sha3_224;)?
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$body
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}
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"rsa-sha3-256" | "id-rsassa-pkcs1-v1_5-with-sha3-256" | "sha3-256" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::sha3::Sha3_256;)?
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$body
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}
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"rsa-sha3-384" | "id-rsassa-pkcs1-v1_5-with-sha3-384" | "sha3-384" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::sha3::Sha3_384;)?
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$body
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}
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"rsa-sha3-512" | "id-rsassa-pkcs1-v1_5-with-sha3-512" | "sha3-512" => {
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$(let $hash_algorithm = None;)?
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$(type $type = ::sha3::Sha3_512;)?
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$body
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}
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_ => $other,
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}
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};
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}
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pub(crate) use match_fixed_digest_with_oid;
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pub enum Hash {
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FixedSize(Box<dyn DynDigest>),
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Shake128(Box<sha3::Shake128>, /* output_length: */ Option<usize>),
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Shake256(Box<sha3::Shake256>, /* output_length: */ Option<usize>),
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}
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use Hash::*;
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impl Hash {
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pub fn new(
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algorithm_name: &str,
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output_length: Option<usize>,
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) -> Result<Self, AnyError> {
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match algorithm_name {
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"shake128" => return Ok(Shake128(Default::default(), output_length)),
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"shake256" => return Ok(Shake256(Default::default(), output_length)),
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_ => {}
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}
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let algorithm = match_fixed_digest!(
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algorithm_name,
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fn <D>() {
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let digest: D = Digest::new();
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if let Some(length) = output_length {
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if length != digest.output_size() {
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return Err(generic_error(
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"Output length mismatch for non-extendable algorithm",
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));
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}
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}
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FixedSize(Box::new(digest))
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},
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_ => {
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return Err(generic_error(format!(
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"Digest method not supported: {algorithm_name}"
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)))
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}
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);
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Ok(algorithm)
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}
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pub fn update(&mut self, data: &[u8]) {
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match self {
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FixedSize(context) => DynDigest::update(&mut **context, data),
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Shake128(context, _) => Update::update(&mut **context, data),
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Shake256(context, _) => Update::update(&mut **context, data),
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};
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}
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pub fn digest_and_drop(self) -> Box<[u8]> {
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match self {
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FixedSize(context) => context.finalize(),
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// The default output lengths align with Node.js
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Shake128(context, output_length) => {
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context.finalize_boxed(output_length.unwrap_or(16))
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}
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Shake256(context, output_length) => {
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context.finalize_boxed(output_length.unwrap_or(32))
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}
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}
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}
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pub fn clone_hash(
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&self,
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output_length: Option<usize>,
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) -> Result<Self, AnyError> {
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let hash = match self {
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FixedSize(context) => {
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if let Some(length) = output_length {
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if length != context.output_size() {
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return Err(generic_error(
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"Output length mismatch for non-extendable algorithm",
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));
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}
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}
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FixedSize(context.box_clone())
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}
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Shake128(context, _) => Shake128(context.clone(), output_length),
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Shake256(context, _) => Shake256(context.clone(), output_length),
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};
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Ok(hash)
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}
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pub fn get_hashes() -> Vec<&'static str> {
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vec![
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"RSA-MD4",
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"RSA-MD5",
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"RSA-RIPEMD160",
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"RSA-SHA1",
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"RSA-SHA1-2",
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"RSA-SHA224",
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"RSA-SHA256",
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"RSA-SHA3-224",
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"RSA-SHA3-256",
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"RSA-SHA3-384",
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"RSA-SHA3-512",
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"RSA-SHA384",
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"RSA-SHA512",
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"RSA-SHA512/224",
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"RSA-SHA512/256",
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"RSA-SM3",
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"blake2b512",
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"blake2s256",
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"id-rsassa-pkcs1-v1_5-with-sha3-224",
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"id-rsassa-pkcs1-v1_5-with-sha3-256",
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"id-rsassa-pkcs1-v1_5-with-sha3-384",
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"id-rsassa-pkcs1-v1_5-with-sha3-512",
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"md4",
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"md4WithRSAEncryption",
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"md5",
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"md5-sha1",
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"md5WithRSAEncryption",
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"ripemd",
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"ripemd160",
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"ripemd160WithRSA",
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"rmd160",
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"sha1",
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"sha1WithRSAEncryption",
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"sha224",
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"sha224WithRSAEncryption",
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"sha256",
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"sha256WithRSAEncryption",
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"sha3-224",
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"sha3-256",
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"sha3-384",
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"sha3-512",
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"sha384",
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"sha384WithRSAEncryption",
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"sha512",
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"sha512-224",
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"sha512-224WithRSAEncryption",
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"sha512-256",
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"sha512-256WithRSAEncryption",
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"sha512WithRSAEncryption",
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"shake128",
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"shake256",
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"sm3",
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"sm3WithRSAEncryption",
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"ssl3-md5",
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"ssl3-sha1",
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]
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}
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}
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