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verifier-cli: Port attest command to lease-based hiffy interface. #161

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Jan 17, 2024
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verifier-cli: Port attest command to lease-based hiffy interface. #161

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42 changes: 30 additions & 12 deletions verifier-cli/src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ use anyhow::{anyhow, Context, Result};
use attest_data::{Attestation, Nonce};
use clap::{Parser, Subcommand, ValueEnum};
use env_logger::Builder;
use hubpack::SerializedSize;
use log::{debug, error, info, warn, LevelFilter};
use pem_rfc7468::{LineEnding, PemLabel};
use sha3::{Digest, Sha3_256};
Expand Down Expand Up @@ -251,16 +252,22 @@ impl AttestHiffy {
op: &str,
length: usize,
output: &Path,
args: String,
args: Option<&str>,
input: Option<&str>,
) -> Result<()> {
let mut cmd = Command::new("humility");

cmd.arg("hiffy");
cmd.arg(format!("--call={}.{}", self.interface, op));
cmd.arg(format!("--num={}", length));
cmd.arg(format!("--output={}", output.to_string_lossy()));
cmd.arg("--arguments");
cmd.arg(args);
if let Some(args) = args {
cmd.arg("--arguments");
cmd.arg(args);
}
if let Some(i) = input {
cmd.arg(format!("--input={}", i));
}
debug!("executing command: {:?}", cmd);

let output = cmd.output()?;
Expand All @@ -278,15 +285,22 @@ impl AttestHiffy {
}

fn attest(&self, nonce: Nonce, out: &mut [u8]) -> Result<()> {
let mut tmp = tempfile::NamedTempFile::new()?;
let mut attestation_tmp = tempfile::NamedTempFile::new()?;
let mut nonce_tmp = tempfile::NamedTempFile::new()?;

let mut buf = [0u8; Nonce::MAX_SIZE];
hubpack::serialize(&mut buf, &nonce)
.map_err(|_| anyhow!("failed to serialize Nonce"))?;
nonce_tmp.write_all(&buf)?;

self.get_chunk(
"attest",
out.len(),
tmp.path(),
format!("nonce={}", nonce),
attestation_tmp.path(),
None,
Some(&nonce_tmp.path().to_string_lossy()),
)?;
tmp.read_exact(&mut out[..])?;
Ok(())
Ok(attestation_tmp.read_exact(&mut out[..])?)
}

/// Get length of the measurement log in bytes.
Expand Down Expand Up @@ -315,7 +329,8 @@ impl AttestHiffy {
"cert",
Self::CHUNK_SIZE,
tmp.path(),
format!("index={},offset={}", index, offset),
Some(&format!("index={},offset={}", index, offset)),
None,
)?;
tmp.read_exact(&mut out[offset..offset + Self::CHUNK_SIZE])?;
}
Expand All @@ -328,7 +343,8 @@ impl AttestHiffy {
"cert",
remain,
tmp.path(),
format!("index={},offset={}", index, offset),
Some(&format!("index={},offset={}", index, offset)),
None,
)?;
tmp.read_exact(&mut out[offset..])?;
}
Expand All @@ -347,7 +363,8 @@ impl AttestHiffy {
"log",
Self::CHUNK_SIZE,
tmp.path(),
format!("offset={}", offset),
Some(&format!("offset={}", offset)),
None,
)?;
tmp.read_exact(&mut out[offset..offset + Self::CHUNK_SIZE])?;
}
Expand All @@ -360,7 +377,8 @@ impl AttestHiffy {
"log",
remain,
tmp.path(),
format!("offset={}", offset),
Some(&format!("offset={}", offset)),
None,
)?;
tmp.read_exact(&mut out[offset..])?;
}
Expand Down
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