Struct HttpSigner 

pub struct HttpSigner { /* private fields */ }

HTTP request signer using Ed25519 signatures.

Example

use herolib_crypt::httpsig::HttpSigner;
use herolib_crypt::keys::Ed25519Keypair;
use http::Request;

let keypair = Ed25519Keypair::generate()?;
let signer = HttpSigner::new(keypair, "user-123");

let body = b"{\"amount\": 100}";
let mut request = Request::post("https://api.example.com/api/v1/payments")
    .header("content-type", "application/json")
    .body(body.to_vec())?;

signer.sign_request(&mut request, body)?;
// Request now has signature headers

Implementations

impl HttpSigner

pub fn new(keypair: Ed25519Keypair, key_id: impl Into<String>) -> Self

Create a new signer with a keypair and key identifier.

pub fn with_headers(self, headers: Vec<String>) -> Self

Add additional headers to include in the signature.

Example

let signer = HttpSigner::new(keypair, "user-123")
    .with_headers(vec!["content-type".to_string(), "x-request-id".to_string()]);

pub fn with_label(self, label: impl Into<String>) -> Self

Set the signature label (default: “sig1”).

pub fn sign_request<B>( &self, request: &mut Request<B>, body: &[u8], ) -> Result<(), HttpSigError>

Sign an HTTP request.

This method works with any HTTP library that uses http::Request. The signature headers are automatically added to the request.

Arguments

• request - Mutable reference to the HTTP request
• body - Request body bytes

Example

use herolib_crypt::httpsig::HttpSigner;
use herolib_crypt::keys::Ed25519Keypair;
use http::Request;

let keypair = Ed25519Keypair::generate()?;
let signer = HttpSigner::new(keypair, "user-123");

let body = b"{\"amount\": 100}";
let mut request = Request::post("https://api.example.com/payments")
    .header("content-type", "application/json")
    .body(body.to_vec())?;

signer.sign_request(&mut request, body)?;
// Request now has Signature-Input, Signature, and Content-Digest headers

pub fn sign_response<B>( &self, response: &mut Response<B>, body: &[u8], ) -> Result<(), HttpSigError>

Sign an HTTP response.

This method works with any HTTP library that uses http::Response. The signature headers are automatically added to the response.

Arguments

• response - Mutable reference to the HTTP response
• body - Response body bytes