ZCash to paperwallet; paperwallet to another wallet

Technical Support
1

Hello community,

Im searching around, trying to collect necessary ‘crumbs’ to achieve
a ZCash to paper and then paper to other wallet transaction for testing
purpose.

For now I have generated paperwallets using: GitHub - MichaelMure/WalletGenerator.net
It works pretty much the same as bitaddress.org.
I had to copy and paste the images with GIMP because
I want to have ~5 wallets on one paper sheet including raw public/private key
and a QR code to scan it easily.

I am now stuck if I send ZCash to one of the paper wallets how
do I send it back to another address?
I am only familiar with Linux. I have installed zcash-cli.
I prefer to only use properly maintained command line tools.

Can anybody tell me how to do it?
(sorry for not reading the docs)

2

Both Zcash4win and Jaxx wallets have tools for importing a wallet using the private send key. What wallet are you using or wanting to use?

3

—For CLI—

Transparent:

zcash-cli importprivkey < t-priv-key >

Shielded:

zcash-cli z_importkey < z-priv-key >

More information:
https://github.com/zcash/zcash/blob/master/doc/wallet-backup.md

4

Thanks! This has pointed me into the right direction.

I didnt know that I had to setup a full node.
This is what I have done so far:

mkdir -p ~/.zcash
echo "addnode=mainnet.z.cash" >> ~/.zcash/zcash.conf
echo "rpcuser=z" >>~/.zcash/zcash.conf
echo "rpcpassword=`head -c 32 /dev/urandom | base64`" >>~/.zcash/zcash.conf
echo "exportdir=/home/z/zcash" >>~/.zcash/zcash.conf
zcash-fetch-params

Then I have generated addresses and used qrencode tool to output a QR code additionally on the console:

sudo pacman -S qrencode
ADR=$(zcash-cli getnewaddress) && echo $ADR && qrencode -t UTF8 $ADR
PRIV=$(zcash-cli dumpprivkey $ADR); echo $PRIV; qrencode -t UTF8 $PRIV

you can also use curl to QRencode your <PUBLIC!> addresses :slight_smile:

echo <publickey> | curl -F-=\<- qrenco.de

next I will try to make transactions and buy a 2D QRcode scanner :wink:

1 Like
5

I can see where this is going :smiley:
GL on your project!

I will be trying out QRendcode my self, I have been using a php script for QR generating and I’ve never bothered searching a more logical and performing solution :slight_smile:

6

My plan is to generate a set of addresses including private keys. Then pipe them through qrencode and print them for save offline storage.
A simple bash script will do fine.
One catch is if you print the ASCII text the QR code is inverted and my ‘untrusted’ android scanner app doesnt read it. Generally a bad idea to scan these codes with an ‘untrusted’ device. Therefore the ‘non-intelligent’ USB QR scanner.

I hope the qrencode parameters will solve the color issue.

--foreground=RRGGBB[AA]
--background=RRGGBB[AA]
          specify  foreground/background  color  in hexadecimal notation.  6-digit (RGB) or 8-digit
          (RGBA) form are supported.  Color output support available only in PNG, EPS and SVG.

But first I have to go to work :slight_smile:

1 Like