Topic: How to Generate a signed BTC transaction using Electrum and Trezor - page 2. (Read 1049 times)

 Good point but I am just dealing with one Trezor..one account in my case. Still good to know for the person who has multiple accounts 

One of the tings I wanted to attempt on doing this was to do it all OFFLINE!

I had started a thread because of issues I can encountered here>>https://bitcointalksearch.org/topic/m.49587834

But I had no luck in doing it or was todl it cannot be done.

Well, a forum member pointed me to this thread here according to the instructions it can be done

 https://www.reddit.com/r/Bitcoin/comments/6kek57/question_trezor_on_offline_computer/

    I will need to find the time to try it again someday in the steps they mention.

   Has anyone had any first hand experience of this? If so kindly share it here or in my other thread as stated above.  

   Thankyou

The seventh step lacks information on adding any other account than the default one. Each account in the receive tab in TREZOR web interface displays a BIP32 path which needs to be typed in during that step.



Each account in Electrum will be saved in a separate wallet file.

Very good tutorial.

Of course this applies the same way if you want to sign your transactions on an offline/airgapped machine and broadcast them later from a possibly compromised device.

Updated and of course. Thankyou!

May I help you to rewrite the section?


Step 1
    Download Electrum https://electrum.org/#download
    Verify the the download
    If you do not know the verification steps then please read this article: https://bitzuma.com/posts/how-to-verify-an-electrum-download-on-windows/
    Warning: Do not install the downloaded exe file without verifying the signature. It may risk losing your bitcoins


Hope it helps 🙂

Thank you.

I see all your points. Very good ones. I updated accordingly and thanks again for the enlightenment..

If I missed anything..please let me know...cheers

You already had your answer here https://bitcointalksearch.org/topic/m.49582538
And I am sure this should be enough to explain.

Thank you.

Verifying the files signatures should be a mandatory step when downloading Electrum. There are many reasons why someone could end up in the wrong website or trusting a phishing email/message. Let’s not forget the last vulnerability where Electrum was showing fake “please update” messages leading to an infected wallet.

Since it was coming from the legit wallet, people fell for it. But if they had the habit of verifying the signatures, they would know that something wasn’t right. Let’s not be lazy with our security; always double check your files.

Thankyou. The link is the official electrum website. Why is that a problem or am I misunderstanding you? Please explain. In the meanwhile will place the main home page as follows..  https://electrum.org/#home  If its coming from Electrums website I am sure the file will not be an issue.

You missed some important information to add about verifying the downloaded file, may be add file lines of a link of the verify download page. This is very important before installing the wallet. By the way, very good tutorial. This will help a lot of users.

Thank you.

Edit: Ok here is the link for you: https://bitzuma.com/posts/how-to-verify-an-electrum-download-on-windows/

I hope this helps

Reserved

   I always felt uncomfortable carrying any large amounts of Bitcoin on my cellphone hot wallet when I am in need to carry it with me in the event of any purchases in person. SO that being said I was made aware of a very safe way to not to have the BTC on your phone but still be able to send it to the other persons address once needed.

  What I will show you in the following steps is a way to forge or CREATE a bitcoin transaction of x amount and have it forged to the address given prior to the meet.You can also have the BTC sent to your cell phone hot wallet and then from there you can send wherever you want to send it.

  So if I ever need to send a large chunk of BTC in person, I'd probably forge the transaction before at my place but only broadcast it in person.

  We will be using Electrum and Trezor to accomplish this forged BTC transaction and the output will be a raw Hex data which later I will show you how to transmit on blockchain once needed.


   Step 1

    Download Electrum https://electrum.org/#download
    Verify the the download
    If you do not know the verification steps then please read this article: https://bitzuma.com/posts/how-to-verify-an-electrum-download-on-windows/
    Warning: Do not install the downloaded exe file without verifying the signature. It may risk losing your Bitcoins



    Step 2

    Once installed click on new wallet and this window will pop up. I labeled my new wallet Trezor2

   



     Step 3

     Click on the standard wallet option

     



     Step 4

      Click on using a hardware wallet

     



      Step 5
   
      It will ask you to select a device on your Trezor. I selected the Legacy account as follows.

     



      Step 6

      Your Trezor passcode will pop up..Enter your password and continue..

     



      Step 7

      Since I have a legacy Trezor account I selected legacy from the following options..

     



      Step 8

      The following is self explanatory....I chose to not encrypt.

     



     Step 9

      Electrum will work with your Trezor to create addresses or copy the public addresses onto your PC.

     



      Step 10

      Once is all said and done the folliwng wallet window will open up.

     



     Step 11

      On the top tab click on send and the following screen will come into play.

       Enter the public address where you want to send the Bitcoin to and the amount.

     



      Step 12

      DO NOT hit the send button but rather the preview button as follows...

     



      Step 13

      A new window will come up and show as follows..Click on SIGN now...

     



     Step 14

     Once you click the sign button...you will see a small popup window saying SIGNING TRANSACTION as follows..

     


     
      Step 15

     Your Trezor popup for password will come up to confirm all of this.

       


       
      Step 16

      Now Trezor will ask you to verify and confirm the transaction...

     

      Step 17



     Once completed you will now click on copy as follows..

     



     Step 18

     What you just copied is a raw hex data that will look as follows...

     


        Step 19

       To confirm your raw data is sending to the right Bitcoin address click on decode raw data button as per below

       

         Step 20

         Paste your raw data in the box as per below and then click DECODE TRANSACTION. What you will see is as follows...

         I circled where you should see the BTC address where your Bitcoin will be sent to.

         



    Step 21

     You can now carry this at your leisure knowing that your btc is safe until you broadcast it. Once you do it will goto the address of your choice. If you ever lose the data your btc will remain in your Trezor wallet! So you can never ever lose it due to theft or hacking on your cell phone!!



     Step 22

      Once ready to transmit on blockchain go here and paste in TRANSACTION HEX and then BROADCAST TRANSACTION

      https://live.blockcypher.com/btc/pushtx/


Its that simple!  Cheers!!   

   Thankyou Yogg for showing me the path to enlightenment!

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