TrustedCoin server fails to sign transaction for 2fa_segwit wallet: "Internal Server Error" (electrum 4.3.3)

[Lokoshepherd]

Hi i have latest version Electrum but when i gonna use it send btc i get a messenge TrustedcoinExpection(Internal server error)
What this mean a update or gonna fix server error soon?

[ecdsa]

what happens if you click on the TrustedCoin icon in the status bar?
the server works for me.

[Lokoshepherd]

I get the i gonna choose 20 or 100 Payment fe Skickat från Proton Mail mobil

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-------- Originalmeddelande -------- Den 5 jan. 2023 17:19, ThomasV skrev:

what happens if you click on the TrustedCoin icon in the status bar? the server works for me. — Reply to this email directly, [view it on GitHub](#8128 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/A5DCY23VRWVXTLA2VJQQMZ3WQ3YCBANCNFSM6AAAAAATSDUQIU). You are receiving this because you authored the thread.Message ID: ***@***.***>

[Lokoshepherd]

Ok so its not any server error do you know inget this Messenge? Skickat från Proton Mail mobil

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-------- Originalmeddelande -------- Den 5 jan. 2023 17:30, Lokoshepherd skrev:

I get the i gonna choose 20 or 100 Payment fe Skickat från Proton Mail mobil -------- Originalmeddelande -------- Den 5 jan. 2023 17:19, ThomasV skrev: > what happens if you click on the TrustedCoin icon in the status bar? > the server works for me. > > — > Reply to this email directly, [view it on GitHub](#8128 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/A5DCY23VRWVXTLA2VJQQMZ3WQ3YCBANCNFSM6AAAAAATSDUQIU). > You are receiving this because you authored the thread.Message ID: ***@***.***> — Reply to this email directly, [view it on GitHub](#8128 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/A5DCY2YCJ3S4K4HPADXOLTTWQ3ZKHANCNFSM6AAAAAATSDUQIU). You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[Lokoshepherd]

I have try on my phone to dont work get same error messenge server error

[Lokoshepherd]

It was 2fa dont work on my laptop when i disable 2fa all works with electrum

[Lokoshepherd]

Its not safe now?

[badmofo]

I'm pretty sure this caused by my service (Trustedcoin) puking on some of the 4.3.3 PSBT changes. I'm in the process of trying to diagnose / remedy and hope to have a fix within 24 hrs. In the meantime 2FA folks can either wait for a fix, downgrade or restore-from-seed to disable 2FA.

[SomberNight]

@badmofo Ah, sorry for that. :/

I can reproduce the server error when trying to sign a tx with a 2fa_segwit seeded wallet.
Signing works with a legacy 2fa wallet (pre-segwit).

Looks like the cause is d3227d7 (re #8039).
That is, if I revert that, the server can sign.

Like the commit message says, previously for segwit inputs in a PSBT we were only putting PSBT_IN_NON_WITNESS_UTXO, but now both PSBT_IN_NON_WITNESS_UTXO and PSBT_IN_WITNESS_UTXO get included. The latter field can be derived from the former (and the rest of the PSBT):

electrum/electrum/transaction.py

Lines 1299 to 1302 in a4a2134

	if self.witness_utxo:
	if self.utxo.outputs()[self.prevout.out_idx] != self.witness_utxo:
	raise PSBTInputConsistencyFailure(f"PSBT input validation: "
	f"If both non-witness UTXO and witness UTXO are provided, they must be consistent")

I am fairly certain you could safely discard the latter field (and require the presence of PSBT_IN_NON_WITNESS_UTXO - both old and new versions provide that).

[Sadbee69]

Guys pls help. give an information when will the problem with Internal Server Error and trustedcoin be solved. I have no money more and i want to eat but all my money stays on not working btc wallet with this error. I just want to live please help to decide this problem

[badmofo]

Fix applied to the Trustedcoin server. This bug can be closed.

[Lokoshepherd]

Thanks for fix it with one are more save 2fa Google or master key 2fa?