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DIY Hardware Wallet running Satochip on Javacard (Simple, Low Cost, Discrete) Like Tangem, Tapsigner 

Crypto Guide
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Satochip-DIY Documentation Repo: github.com/3rdIteration/Satoc...
GlobalPlatformPro: github.com/martinpaljak/Globa...
Satochip Official Site: satochip.io/
Satochip Telegram Group: t.me/Satochip
STL for 3d Printed Keychain: www.printables.com/model/6573...
A video that runs through how to build a DIY hardware wallet using Satochip. This is a similar device to something line a Tangem or Tapsigner wallet, except it's fully open source.
00:00 - Intro
01:21 - Simplest DIY Option - Satochip Kit (Card + Reader + Official Builds)
01:43 - Downloading CAP Files from Official Repository
02:12 - Downloading GlobalPlatformPro
02:48 - Installing Java (OpenJDK-8)
03:41 - Flashing Applets to Javacard
05:17 - Selecting a Javacard Compatible with Satochip
05:43 - Recommended Card NXP JCOP4 P71 SECID - J3R180
06:04 - Common Error Messages from Uncompatible Javacards (INSTALL [for install and make selectable] failed)
06:18 - Cards where Vendor is Unable to Supply Working Keys (STRICT WARNING: Card cryptogram invalid!)
06:48 - Javacards Sourced from Satochip
07:00 - Other Card Options
07:32 - THD-89 Based Javacards
08:09 - Hardware and Operating System Certifications (EAL6+, etc)
09:04 - Selecting a Smart Card Reader (Contact or NFC)
10:23 - Building Applets from Source
10:40 - Downloading the Source (Includes Javacard SDK)
11:16 - Downloading and Installing Apache Ant (Needed for ant-javacard)
11:43 - Building Javacard Applets with Ant
12:04 - Flashing Built CAP Files to Javacard
13:06 - Locking the Javacard
14:32 - Installing other Applets on the Javacard
14:57 - DIY Yubico Authenticator (TOTP)
15:21 - SmartPGP (Cryptographic Device Authentication and other PGP Functions)
16:07 - Closing Comments

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29 июн 2024

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Комментарии : 52   
@BlowUpDaChr0n
@BlowUpDaChr0n 7 месяцев назад
I'm going to have to watch this twice because there's so much information in this..
@CryptoGuide
@CryptoGuide 7 месяцев назад
Yea it's certainly quite dense :)
@asteriskesque
@asteriskesque 7 месяцев назад
So much awesome info. I'm saving this one for future reference.
@CryptoGuide
@CryptoGuide 7 месяцев назад
Glad it helped
@mobilemike1502
@mobilemike1502 7 месяцев назад
The video I've been waiting for. It's great thanks, a bit too fast for me but I'll play it again in 0.75 :)
@CryptoGuide
@CryptoGuide 7 месяцев назад
Great :) Pacing is always a tricky balance to strike, but the ability to rewind and reply is a big part of what makes RU-vid great for learning :)
@kboy5189
@kboy5189 7 месяцев назад
Good good. Thanks a lot for the details.
@CryptoGuide
@CryptoGuide 7 месяцев назад
Glad it was helpful :)
@marcosvelasquez5924
@marcosvelasquez5924 7 месяцев назад
very interesting!!... thanks for sharing!
@CryptoGuide
@CryptoGuide 7 месяцев назад
Thanks, glad it helped :)
@magicinternetmoney8715
@magicinternetmoney8715 6 месяцев назад
Thanks for the video! What happens if the chip on the card breaks? Do you lose all your funds unless you have another copy of the satochip? Is there a way to securely view the seed words your satochip is using? And do you get a choice for which words to initialize the satochip with?
@CryptoGuide
@CryptoGuide 6 месяцев назад
Basically it's the same as any other decent hardware wallet in that you need to restore from a backup. Basically the secure way to initialize it is with a seedkeeper, I'll cover that more in a video on the retail devices next week.
@jpp62200
@jpp62200 7 месяцев назад
Did you test doing real transaction with it? Ledger tried to use such card some year ago but abandoned because there were not enough power and it was not really reliable with nfc...
@CryptoGuide
@CryptoGuide 7 месяцев назад
Yep, I have been playing around with these for a few months and have had no issues doing test transactions, signing messages, etc.
@cyber_hornet_21
@cyber_hornet_21 5 месяцев назад
So could you take an existing SatoDime chip and reprogram it to a SeedKeeper or SatoChip card ?
@CryptoGuide
@CryptoGuide 5 месяцев назад
You can reprogram DIY cards to be whatever you like, but the retail cards are locked (like I demo in the video) and the vendor doesn't share the key to unlock it. (Which is normal)
@hd9g
@hd9g 7 месяцев назад
Are we able to add FIDO2 functionality to work just like YUBIKEY?
@CryptoGuide
@CryptoGuide 7 месяцев назад
There is an applet here for that github.com/BryanJacobs/FIDO2Applet but I haven't tested it
@hd9g
@hd9g 7 месяцев назад
@@CryptoGuide If it works that is an insane privacy and value product to DIY.
@CryptoGuide
@CryptoGuide 7 месяцев назад
Yea I'll test it out
@kurupira2229
@kurupira2229 6 месяцев назад
Hi there! Wondering if it's possible to recover a Bech32 Addresses wallet. I have all 11 words, only one missing. Tried using btcrecover but i'm getting an encoding error, I think btc recover doesn't allow Bech32? Thanks for the content!
@CryptoGuide
@CryptoGuide 6 месяцев назад
11/12 words is straightforward. Is this a taproot address by chance? (Starts with bc1p) BTCRecover works fine with Bech32, but I haven't got around to implementating taproot yet.
@kurupira2229
@kurupira2229 6 месяцев назад
yup! unfortunately it’s taproot 🥲
@CryptoGuide
@CryptoGuide 5 месяцев назад
BTCRecover now supports recovery using Taproot addresses if you want to test it out
@nickr2714
@nickr2714 Месяц назад
This video pop up but what exactly did you do?
@CryptoGuide
@CryptoGuide Месяц назад
It's a DIY hardware wallet guide
@nickr2714
@nickr2714 Месяц назад
@@CryptoGuide and it can store money on it just like a regular debit card?
@CryptoGuide
@CryptoGuide Месяц назад
No, just crypto
@nickr2714
@nickr2714 23 дня назад
@@CryptoGuide are u like a software programmer for Java cards?
@CryptoGuide
@CryptoGuide 23 дня назад
@@nickr2714 No, but that is the process that I demo in this video.
@dongmannh
@dongmannh 7 месяцев назад
怎么找回taproot的钱包地址??
@CryptoGuide
@CryptoGuide 7 месяцев назад
So are you asking how to do this with the beta firmware that supports taproot?
@dongmannh
@dongmannh 7 месяцев назад
@@CryptoGuide 对的
@CryptoGuide
@CryptoGuide 7 месяцев назад
Just flash the beta firmware that supports taproot then use it with Sparrow.
@ankushstories-fight2win151
@ankushstories-fight2win151 7 месяцев назад
Hello brother thank you for all your videos.. could you please help me.. i sent VET token from binance to trust wallet using BEP20 and now not able to see them in trust wallet... How to recover them please make a video pls
@CryptoGuide
@CryptoGuide 7 месяцев назад
I already have multiple videos on this exact thing...
@ankushstories-fight2win151
@ankushstories-fight2win151 7 месяцев назад
@@CryptoGuide thanky brother but could you plaese provide the link for one of the video
@CryptoGuide
@CryptoGuide 7 месяцев назад
Just search my channel for multi chain block explorers or recovery from binance smart chain
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