What makes Samsung Blockchain Keystore Unique? | Samsung Developer (2024)

The main function of a general keystore is to generate keys and store them in a safe place. In the blockchain industry, a wallet can use various open source libraries to generate the keys. Other option could be integrating with a hardware wallet.Unlike Android Keystore, which is used for general purpose, the name, “Samsung Blockchain Keystore” implies that Samsung Blockchain Keystore is a keystore that is dedicated to support blockchain transactions. Keeping this in mind, let’s look at some features that make Samsung Blockchain Keystore unique from other keystores.

  • Support blockchain-specific algorithms : ECDSA with secp256k1 curve for Bitcoin and Ethereum

    Algorithms used to generate keys and signatures are different by cryptocurrency. For example, ECDSA (Elliptic Curve Digital Signature Algorithm) with secp256k1 curve is needed for Bitcoin and Ethereum. Samsung Blockchain Keystore supports algorithms specifically used for such cryptocurrency transactions.

  • Parse blockchain transactions

    Samsung Blockchain Keystore parses blockchain transactions in a safe environment, and show the transaction details to the user. A normal keystore usually does not parse any information to be signed, and focus on signing only.

  • Secure Display and Secure Touch: Trusted User Interface

    Trusted User Interface (TUI) is a general term that includes trusted display and trusted touch that are accessible by only the authorized Trusted Applications that run in the TEE. Samsung Blockchain Keystore leverages TUI in TEE to display sensitive information and protect user’s input.

    For instance, normal apps running in REE could maliciously show the recipient’s address or transfer amount that are different from what is actually included in the transaction. But because Samsung Blockchain Keystore leverages TEE to use TA to parse the transaction details and show the actual details on TUI, where the information can never be tampered with, user will be able to distinguish maliciously modified transactions

    The following are TUI screens run by Samsung Blockchain Keystore.

    What makes Samsung Blockchain Keystore Unique? | Samsung Developer (1)

    What makes Samsung Blockchain Keystore Unique? | Samsung Developer (2)

[PIN] PIN input screen is used to (1) Register PIN and (2) Confirm PIN when user authentication is needed. When creating or importing a wallet, user needs to set up PIN first. User will be asked to enter the registered PIN when making transactions and checking Recovery Phrase again. User’s input of PIN in all these cases are run in an isolated environment, by TUI.

[Recovery Phrase] Recovery Phrase that represent the Root Seed and countless number of private keys, hence the secure display to show this Recovery Phrase cannot be emphasized enough.

[Double Checking Recovery Phrase] To complete creating a wallet, user must enter a few random words of the Recovery Phrase to confirm that user has written down the 12 words in a safe place. User’s input is protected here.

[Enter Recovery Phrase] When importing a wallet that was created from a different wallet, like a hardware wallet or Samsung Blockchain Keystore on a different device, user has to enter the 12 to 24 words. Likewise, what user enters is protected via TUI, including the keyboard.

[Transaction Confirmation] Regarding transaction confirmation, after parsing the transaction by a Trusted Application in TEE, Samsung Blockchain Keystore will show selected sensitive transaction details on TUI. The sensitive information differs depending on the blockchain platform, but most of them focus on the amount to transfer, recipient address and fee.

  • Secure Computation: Trusted Execution Environment

    Trusted Applications and Trusted User Interface are all run in Trusted Execution Environment, an isolated environment. This means normal applications and malware that run in Rich Execution Environment (REE) will have no access to any information in TEE. Likewise, Samsung Blockchain Keystore will be able to prevent users from confirming maliciously modified transaction.

  • User’s Manual Confirmation

    In order to sign a transaction via Samsung Blockchain Keystore, the user must manually confirm by clicking confirmation button and enter PIN or authenticate with a fingerprint. A normal keystore usually completes its function by generating a key and making a digital signature. But Samsung Blockchain Keystore prioritizes the user confirmation via a TUI feature in the belief that user’s explicit agreement is the most critical step in signing a transaction. Hence, it is impossible for malicious apps to acquire a user’s signature from the background or sign a transaction without the user knowing it.

  • Parse blockchain transactions

    Samsung Blockchain Keystore parses blockchain transactions in a safe environment, and show the transaction details to the user. A normal keystore usually does not parse any information to be signed, and focus on signing only.

  • Support algorithms for signatures

    Keys are generated differently depending on the type of algorithm used. For example, ECDSA (Elliptic Curve Digital Signature Algorithm) is applied for Bitcoin and Ethereum. Some cryptocurrencies consume a different algorithm as a standard. Because Samsung Blockchain Keystore is specific to blockchain, algorithms to generate keys and sign blockchain transactions are supported.

  • True Random Number Generator (TRNG)

    We saw that a keystore generates keys. But whether the randomness of the key is guaranteed so that the key cannot be predicted in any other way is another question. Generating this random key in a software environment is known to have security vulnerabilities. Samsung Blockchain Keystore leverages a True Random Number Generator (TRNG) feature from the device to guarantee randomness from a hardware level.

  • Safe key storage

    Once the keys are generated, where and how safely the keys are stored is important. Hardware wallet was originally designed with the purpose to store the keys in a separate environment. Similarly, Samsung Blockchain Keystore stores the encrypted Root Seed that generates numerous keys, in the Secure File system, where normal apps will not have access to nor be able to decrypt the file.

What makes Samsung Blockchain Keystore Unique? | Samsung Developer (2024)
Top Articles
Exhibit: The Louisiana Purchase
Auckland reclaims top spot as most expensive place to rent
English Bulldog Puppies For Sale Under 1000 In Florida
Katie Pavlich Bikini Photos
Gamevault Agent
Pieology Nutrition Calculator Mobile
Hocus Pocus Showtimes Near Harkins Theatres Yuma Palms 14
Hendersonville (Tennessee) – Travel guide at Wikivoyage
Compare the Samsung Galaxy S24 - 256GB - Cobalt Violet vs Apple iPhone 16 Pro - 128GB - Desert Titanium | AT&T
Vardis Olive Garden (Georgioupolis, Kreta) ✈️ inkl. Flug buchen
Craigslist Dog Kennels For Sale
Things To Do In Atlanta Tomorrow Night
Non Sequitur
Crossword Nexus Solver
How To Cut Eelgrass Grounded
Pac Man Deviantart
Alexander Funeral Home Gallatin Obituaries
Energy Healing Conference Utah
Geometry Review Quiz 5 Answer Key
Hobby Stores Near Me Now
Icivics The Electoral Process Answer Key
Allybearloves
Bible Gateway passage: Revelation 3 - New Living Translation
Yisd Home Access Center
Home
Shadbase Get Out Of Jail
Gina Wilson Angle Addition Postulate
Celina Powell Lil Meech Video: A Controversial Encounter Shakes Social Media - Video Reddit Trend
Walmart Pharmacy Near Me Open
Marquette Gas Prices
A Christmas Horse - Alison Senxation
Ou Football Brainiacs
Access a Shared Resource | Computing for Arts + Sciences
Vera Bradley Factory Outlet Sunbury Products
Pixel Combat Unblocked
Movies - EPIC Theatres
Cvs Sport Physicals
Mercedes W204 Belt Diagram
Mia Malkova Bio, Net Worth, Age & More - Magzica
'Conan Exiles' 3.0 Guide: How To Unlock Spells And Sorcery
Teenbeautyfitness
Where Can I Cash A Huntington National Bank Check
Topos De Bolos Engraçados
Sand Castle Parents Guide
Gregory (Five Nights at Freddy's)
Grand Valley State University Library Hours
Holzer Athena Portal
Hello – Cornerstone Chapel
Stoughton Commuter Rail Schedule
Nfsd Web Portal
Selly Medaline
Latest Posts
Article information

Author: Prof. An Powlowski

Last Updated:

Views: 5895

Rating: 4.3 / 5 (64 voted)

Reviews: 87% of readers found this page helpful

Author information

Name: Prof. An Powlowski

Birthday: 1992-09-29

Address: Apt. 994 8891 Orval Hill, Brittnyburgh, AZ 41023-0398

Phone: +26417467956738

Job: District Marketing Strategist

Hobby: Embroidery, Bodybuilding, Motor sports, Amateur radio, Wood carving, Whittling, Air sports

Introduction: My name is Prof. An Powlowski, I am a charming, helpful, attractive, good, graceful, thoughtful, vast person who loves writing and wants to share my knowledge and understanding with you.