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Questions tagged [two-factor-authentication]

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0answers
18 views

What heirarchical deterministic derivation path is used for FIDO authentication on a Ledger Nano S?

What heirarchical deterministic derivation path is used for FIDO authentication on a Ledger Nano S? Does it ask for a different key each time or is it always the same key? If I connect to Google for ...
1
vote
0answers
126 views

Google Authenticator not verifying for MtGox bankruptcy site

I am trying to file a claim on the mtgox.com site for rehabilitation and part of that requires setting up two-factor authentication via Google Authenticator, but when I enter the 6-digit code it says "...
0
votes
1answer
319 views

Electrum two factor authentication

In the Electrum wallet for pc, it is possible to modify a wallet from normal password to 2fA (two factor authentication ) without creating a new wallet? Also, the fee for the 2fA it's billed only ...
0
votes
1answer
594 views

Doesn't creating a masterkey password on Kraken void the protection of 2FA?

Kraken allows users to create a masterkey that is just a password. Wouldn't creating a password to bypass 2FA completely negate 2FA?
7
votes
7answers
3k views

Practical way to split a bip39 seed into a 2 out of 3 factor auth?

I want to keep off-site paper-backups of my seed, but that increases the risk of a physical attack. Can I somehow split my Mnemonic Code into three parts that I only need two of to recover my trezor?
0
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0answers
21 views

Are there any bitcoin or altcoin wallets that provide a “decentralized” 2fa setup? [duplicate]

Have there been any decentralized 2fa service built into the blockchain? it can be bitcoin or any altcoin.
0
votes
1answer
411 views

Disabling GreenAddress 2FA ∵ Google Authenticator doesn't generate the correct OTPs for it

According to the section "I lost my two-factor/mobile/etc (email/OTP|Authenticator/etc), what can I do?" of the GreenAddress FAQ page, You should always have at least two two-factor options enabled....
1
vote
1answer
181 views

Which coins offer a 2 factor authentication feature built into the blockchain without a centralize authority?

Which coins have the ability to offer a 2 factor authentication feature where it requires a secondary approval mechanism in order to spend from an address?