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Adjust to new fingerprint algorithm

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This commit is contained in:
Tyler Beckman 2023-07-29 18:29:18 -06:00
parent f70b1fcce8
commit c59825b2fd
Signed by: Ty
GPG key ID: 2813440C772555A4
2 changed files with 27 additions and 14 deletions
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2
crates/asp/Cargo.toml
View file

@ -15,7 +15,7 @@ openssl = "0.10.55"
reqwest = "0.11.18"
serde = { version = "1.0.164", features = ["derive"] }
serde-email = "2.0.0"
serde_json = "1.0.99"
serde_json = { version = "1.0.99", features = ["preserve_order"] }
sha2 = "0.10.7"
thiserror = "1.0.40"
tokio = { version = "1.28.2", features = ["macros", "rt-multi-thread"] }

39
crates/asp/src/utils/jwk.rs
View file

@ -1,5 +1,5 @@
use anyhow::{bail, Context};
use data_encoding::{BASE32_NOPAD, BASE64URL_NOPAD, BASE64_NOPAD};
use data_encoding::{BASE32_NOPAD, BASE64_NOPAD};
use josekit::{
jwe::JweHeader,
jwe::{self, alg::aesgcmkw::AesgcmkwJweAlgorithm::A256gcmkw},
@ -10,6 +10,7 @@ use josekit::{
jws::ES256,
};
use openssl::pkey::PKey;
use serde_json::Map;
use sha2::{Digest, Sha512};
pub trait JwtExt {
@ -22,18 +23,30 @@ pub trait JwtExt {
impl JwtExt for Jwk {
fn get_fingerprint(&self) -> anyhow::Result<String> {
// Get the "x" value of the JWK
let fingerprint = self
.parameter("x")
.context(r#"Jwk "x" parameter was not present"#)?;
// Base64url decode the "x" value and use that as the public key value
let fingerprint = BASE64URL_NOPAD
.decode(
// The as_str() can be unwrapped safely because it is impossible to create a Jwk struct where the "x" value is not a string
fingerprint.as_str().unwrap().as_bytes(),
)
.unwrap(); // The decode() can be unwrapped safely because it is impossible to create a Jwk struct where the "x" value is not base64url decodable
// Sha512 hash the public key
// Construct a JSON object with only the "crv", "kty", "x", and potentially "y" values
let fingerprint: String = {
let mut map = Map::new();
map.insert(
"crv".to_string(),
self.curve()
.context("Key did not contain a 'crv' value")?
.into(),
);
map.insert("kty".to_string(), self.key_type().into());
map.insert(
"x".to_string(),
self.parameter("x")
.context("Key did not contain an 'x' value")?
.clone(),
);
if let Some(y) = self.parameter("y") {
map.insert("y".to_string(), y.clone());
}
serde_json::to_string(&map)
.context("Unable to serialize key into ordered, minimal JSON")?
};
// Sha512 hash the JSON
let fingerprint: Vec<u8> = {
let mut hash = Sha512::new();
hash.update(fingerprint);