mirror of
https://github.com/servo/servo
synced 2026-05-15 03:16:47 +02:00
adf840a7c4
Adding an optional message to Error::NotSupported. Unblocks https://github.com/servo/servo/issues/39050. The enum definition of NotSupported is now `NotSupported(Option<String>)`. Testing: Just a refactor Fixes: Partially https://github.com/servo/servo/issues/39053 Signed-off-by: Dennis Kraus <kraus@posteo.de>
44 lines
2.2 KiB
Rust
44 lines
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use aws_lc_rs::digest;
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use crate::dom::bindings::error::Error;
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use crate::dom::subtlecrypto::{ALG_SHA1, ALG_SHA256, ALG_SHA384, ALG_SHA512, SubtleAlgorithm};
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/// <https://w3c.github.io/webcrypto/#sha-operations-digest>
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pub(crate) fn digest(
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nomrmalized_algorithm: &SubtleAlgorithm,
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message: &[u8],
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) -> Result<Vec<u8>, Error> {
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// Step 1.
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// If the name member of normalizedAlgorithm is a cases-sensitive string match for "SHA-1":
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// Let result be the result of performing the SHA-1 hash function defined in Section 6.1 of
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// [FIPS-180-4] using message as the input message, M.
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// If the name member of normalizedAlgorithm is a cases-sensitive string match for "SHA-256":
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// Let result be the result of performing the SHA-256 hash function defined in Section 6.2
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// of [FIPS-180-4] using message as the input message, M.
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// If the name member of normalizedAlgorithm is a cases-sensitive string match for "SHA-384":
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// Let result be the result of performing the SHA-384 hash function defined in Section 6.5
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// of [FIPS-180-4] using message as the input message, M.
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// If the name member of normalizedAlgorithm is a cases-sensitive string match for "SHA-512":
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// Let result be the result of performing the SHA-512 hash function defined in Section 6.4
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// of [FIPS-180-4] using message as the input message, M.
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// Step 2. If performing the operation results in an error, then throw an OperationError.
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let result = match nomrmalized_algorithm.name.as_str() {
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ALG_SHA1 => digest::digest(&digest::SHA1_FOR_LEGACY_USE_ONLY, message)
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.as_ref()
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.to_vec(),
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ALG_SHA256 => digest::digest(&digest::SHA256, message).as_ref().to_vec(),
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ALG_SHA384 => digest::digest(&digest::SHA384, message).as_ref().to_vec(),
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ALG_SHA512 => digest::digest(&digest::SHA512, message).as_ref().to_vec(),
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_ => {
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return Err(Error::NotSupported(None));
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},
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};
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// Step 3. Return result.
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Ok(result)
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}
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