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Fix request signature.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2026-04-28 00:19:50 +02:00
parent 3d3b46a5b5
commit 3fa5204949
3 changed files with 14 additions and 9 deletions
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5
src/usb/lwip/rest_server.c
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@@ -686,14 +686,13 @@ static int rest_verify_request_signature(const rest_request_t *request, const re
const char *method_str = rest_method_to_string(request->method);
size_t body_len = request->body_len > 0 ? request->body_len : strlen((const char *)body_empty);
uint8_t derived_key[32];
if (rest_session_derive_key(session, derived_key) != 0) {
if (rest_session_derive_shared(session, derived_key) != 0) {
mbedtls_md_free(&ctx);
return PICOKEYS_EXEC_ERROR;
}
uint32_t seq = htonl(rest_request_get_seq(request));
if (mbedtls_md_hmac_starts(&ctx, (const unsigned char *)derived_key, sizeof(derived_key)) != 0 ||
mbedtls_md_hmac_starts(&ctx, (const unsigned char *)session->id, sizeof(session->id)) != 0 ||
mbedtls_md_hmac_update(&ctx, (const unsigned char *)session->id, sizeof(session->id)) != 0 ||
mbedtls_md_hmac_update(&ctx, (const unsigned char *)method_str, strlen(method_str)) != 0 ||
mbedtls_md_hmac_update(&ctx, (const unsigned char *)request->path, strlen(request->path)) != 0 ||
mbedtls_md_hmac_update(&ctx, (const unsigned char *)&seq, sizeof(uint32_t)) != 0 ||