The Ethereum Foundation (EF) is implementing Kohaku, a modular toolkit aimed at building privacy features directly into Ethereum wallets.
These tools can Users don’t have to switch between applications Or change the way you normally operate.
The Kohaku project reported by CriptoNoticias suggests that privacy should be protected. Basic standard, not additional features. Deploying these tools at the wallet level positions identity protection as an integral part of the experience, rather than an optional add-on.
Similarly, EF announced a browser extension during the Devconnect Argentina Kohaku Wallet that was created solely as a demonstration to showcase the capabilities of the SDK.
Kohaku will have a public testing period during the next EthCC event from March 30th to April 2nd, 2026.
Kohaku: The standard for building privacy into every wallet
Kohaku is an SDK (Software Development Kit) that introduces a set of components designed to be available to any wallet provider. Add privacy as a native feature.
SDKs propose to group functionality that is currently typically distributed in specialized applications and integrate them through a single module that can be installed like an add-on. This reduces dependence on external agents.
The Oxbow team, an infrastructure platform focused on privacy and regulatory compliance for decentralized finance (DeFi) on Ethereum, published a thread about X on December 8th with an explanation about Kohaku.
Amber mainly points out that Solve two problems. Ethereum transactions are easy to track, and you can see that user activity is usually tied to a single address.
What privacy features does Kohaku include for Ethereum wallets?
There are three main features that the Ethereum Foundation has incorporated into Kohaku:
- Private shipping and receiving Privacy pool.
It is a mechanism for grouping transactions and hiding links between sources and destinations.
loss privacy pool These act as a group of users who deposit and withdraw funds without leaving any direct traces during both operations. In this case, Kohaku provides the necessary integration for your wallet to automatically manage these movements.
- generation of stealth address (hidden address).
These addresses are automatically created for each transfer, allowing the two parties to move within the network without the need for remaining observers to associate both addresses.
The purpose is to prevent public addresses from becoming a type of “personally identifying information” for users.
- Accounts per application.
This is a configuration that separates activities between different services or contracts. This approach prevents the use of decentralized applications (dap) Linked to activities taking place in other regions.
This is a way to compartmentalize information, similar to using separate profiles within a system.
How does Kohaku deal with watchpoints on Ethereum?
Kohaku is light client (thin client), software that allows you to check the state of your network without relying on a third-party node.
Many wallets currently access the Ethereum network through RPC providers (remote network access points, or English). remote procedure call), which results in These services will reshape usage patterns: What people look at, when they look at it, and from which addresses.
When operating with light client Internally, the wallet reduces its exposure channels.
Another part of the SDK is private state reading based on a Trusted Execution Environment (TEE) combination. (Trusted execution environment) and ORAM (a random access mechanism that hides the data being queried, called) Oblivious RAM).
In fact, these tools allow users to browse information on the Internet. without making it clear exactly what part of the state you’re looking at..
Oxbow expects Kohaku to move to a PIR-based system (Acquisition of personal information or personal information recovery), perform the same functions without relying on specialized hardware.
The SDK also includes a social recovery option, a mechanism that allows you to restore access to your account using an identity verified with a zero-knowledge (ZK) proof tool. zero knowledge proof).
Among the alternatives mentioned are: ZKE mail y ZK passporta combination of Digital ID with cryptographic verification without revealing sensitive data.
Its logic is to replace traditional recovery processes (such as passwords or seed phrases stored in plain text) with on-chain auditable methods.
The last one is amber Includes accounts post quantumas explained, is designed to resist the algorithms made possible by quantum computers.
