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"Error: Unknown message digest" when using crypto.subtle.verify({'name':'ECDSA', 'hash':'SHA-256'}, ...)

Aperta
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#203 1 commento 0 reazioni 0 assegnatari Vedi su GitHub

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Valutazione

Difficoltà
4/5
Tempo stimato
3-5 giorni
Idoneità per principianti
35/100
Tipo di issue
Bug
Chiarezza
Abbastanza chiara
Stato di attività
Ferma
Stack tecnologico
javascript, nodejs, wasm
Ambito
build-system, cryptography

Direzione di ricerca

Inizia in webextension/content/tls.js, intorno alla chiamata a crypto.subtle.verify alla riga 634, e confronta il percorso di bundle.js in bundle con il comportamento di pgsg-node.js non sottoposto a bundle. Riproduci il problema con node bundle.js e qjs bundle.js, quindi traccia il percorso con cui la verifica ECDSA SHA-256 raggiunge crypto-browserify. Il lavoro è completato quando la verifica in bundle non segnala più “Unknown message digest”, preservando al contempo l’importazione riuscita della chiave.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

I'm trying to bundle the PageSigner pgsg-node.js (written in NodeJS) using browserify, such that I can run it via QuickJS and eventually compile it to WASM. (Not for a browser application however - I need to run it on a WASM VM).

After some necessary edits to the code of pgsg-node.js, I managed to successfully execute both node bundle.js and the QuickJS analogue qjs bundle.js and log the final output to the console. However, that only works if I remove this crucial line:

var result = await crypto.subtle.verify({'name':'ECDSA', 'hash':'SHA-256'}, notary_pk_CryptoKey, ba2ab(sig_p1363), ba2ab(signed_data_ba))

and replace it with var result = true. Otherwise I get the following error after executing node bundle.js:

Error: Unknown message digest
    at new Verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:13849:20)
    at Object.createVerify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:13882:10)
    at Function.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:33318:51)
    at EcdsaProvider.onVerify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:33496:25)
    at EcdsaProvider.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:82175:30)
    at SubtleCrypto.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:82832:39)
    at verifyNotarySig (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:2724:39)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async verifyPgsgV4 (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:723:10)
    at async Object.verifyPgsg (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:661:12) Error
(node:7830) UnhandledPromiseRejectionWarning: Error: Unknown message digest
    at new Verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:13849:20)
    at Object.createVerify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:13882:10)
    at Function.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:33318:51)
    at EcdsaProvider.onVerify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:33496:25)
    at EcdsaProvider.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:82175:30)
    at SubtleCrypto.verify (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:82832:39)
    at verifyNotarySig (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:2724:39)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async verifyPgsgV4 (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:723:10)
    at async Object.verifyPgsg (/home/metzgerj/CoaseContract/pagesigner/webextension/content/pgsg-node/bundle.js:661:12)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:7830) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)
(node:7830) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

What's weird is that at least some of the crypto.subtle functionality works, the line right before

var notary_pk_CryptoKey = await crypto.subtle.importKey(
      "raw", ba2ab(notaryPubkey_ba), {name: 'ECDSA', namedCurve:'P-256'}, true, ["verify"]);

works flawlessly. Also, executing my modified unbundled file node pgsg-node.js does not produce this error.

Lingua principale
JavaScript
Stelle
681
Fork
209
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