New answers tagged mnemonic-seed
2
You can use them, but you need to ensure that the hardware wallets use the same address derivation paths. For the hardware wallets you mentioned (Trezor and Ledger) both of them use the BIP 39/BIP 44 derivation paths, so that should work, especially in the case of Bitcoin. However care has to be taken for certain coins (ETH or any other ERC-20 for example) ...
2
Bitcoin Core uses BIP32, but does not implement BIP39 - As such, you cannot export a set of seed words, since the seed to BIP32 master key conversions is one way only, and it is not possible to obtain seed words if you only have the master key.
You should simply back up the master key itself, and import it into another instance of bitcoin core when needed. ...
3
I am assuming that you are talking about BIP 39 here.
A BIP 39 mnemonic can have any number of words with the most common being 12, 18, and 24 words. There is a checksum encoded into this mnemonic. This checksum is actually just a "part of" the last word, i.e. the last word encodes some of the actual initial entropy, and some of the checksum, depending on ...
1
There is no one private key associated with the 12 word mnemonic that you posses. Consider the seed phrase to be like a keychain, that holds multiple keys. You would need to import the 12 word mnemonic you possess into a wallet software in order to generate the private keys. The wallet software will then scan the Bitcoin blockchain in order to see the funds ...
0
You cannot import individual private keys into a Trezor. However you can generate your own mnemonic offline and import that into a Trezor.
5
someone on blockchain support ask me to tell him my back up fund 12 word in order to reverse my bitcoin which was unconfirmed in my transaction
Sorry to say, you were definitely scammed.
You cannot reverse a bitcoin transaction in that way, the scammer only told you that so that you would give them the 12 word phrase. With that phrase, the scammer could ...
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