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intel-trust-authority-as: add runtime data to attestation request #406

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Jun 21, 2024
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intel-trust-authority-as: add runtime data to attestation request #406

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12 changes: 11 additions & 1 deletion kbs/src/api/src/attestation/intel_trust_authority/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,12 @@
use super::Attest;
use anyhow::*;
use async_trait::async_trait;
use base64::{engine::general_purpose::STANDARD, Engine};
use jsonwebtoken::{decode, decode_header, jwk, Algorithm, DecodingKey, Validation};
use kbs_types::{Attestation, Tee};
use reqwest::header::{ACCEPT, CONTENT_TYPE};
use serde::{Deserialize, Serialize};
use serde_json::json;
use std::fs::File;
use std::io::BufReader;
use std::str::FromStr;
Expand All @@ -23,6 +25,7 @@ struct IntelTrustAuthorityTeeEvidence {
#[derive(Serialize, Debug)]
struct AttestReqData {
quote: String,
runtime_data: String,
}

#[derive(Deserialize, Debug)]
Expand Down Expand Up @@ -50,7 +53,7 @@ pub struct IntelTrustAuthority {

#[async_trait]
impl Attest for IntelTrustAuthority {
async fn verify(&self, tee: Tee, _nonce: &str, attestation: &str) -> Result<String> {
async fn verify(&self, tee: Tee, nonce: &str, attestation: &str) -> Result<String> {
if tee != Tee::Tdx && tee != Tee::Sgx {
bail!("Intel Trust Authority: TEE {tee:?} is not supported.");
}
Expand All @@ -61,9 +64,16 @@ impl Attest for IntelTrustAuthority {
serde_json::from_str::<IntelTrustAuthorityTeeEvidence>(&attestation.tee_evidence)
.map_err(|e| anyhow!("Deserialize supported TEE Evidence failed: {:?}", e))?;

let runtime_data = json!({
"tee-pubkey": attestation.tee_pubkey,
"nonce": nonce,
})
.to_string();

// construct attest request data
let req_data = AttestReqData {
quote: evidence.quote,
runtime_data: STANDARD.encode(runtime_data),
};

let attest_req_body = serde_json::to_string(&req_data)
Expand Down
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