2289028_en-US

Yes

[Haudi Crypto, Inc.][SE050]Proposal for BIP32 Support in SE050

Hi Experts,

The customer is Haudi Crypto, Inc. (Subsidiary of Haudi, Inc.), who is developing a hardware cryptocurrency wallet using the SE050. During development, they identified enhancements that would benefit this use case—specifically, native BIP32 key derivation support. Is it possible to release a custom type for their application? Please kindly refer to the attachment for more details.

More backgrounds as shown below:

So far their Openloop Wallet is still under development and has not yet been released, and they will be the distributor. For the corporate version, they are in negotiations with several Japanese financial institutions and stablecoin operators. It has been well-received. For the general public version, they plan to first launch it through Japanese crowdfunding, and they are currently preparing for this. They also plan to sell it on Amazon afterwards.

Customer contactor info:

Company Name: Haudi Crypto, Inc. (Subsidiary of Haudi, Inc.)

Contact Information: Kazunori Asada, CEO

Email: kazunori@haudi.jp

Thanks in advance for any help!

Best Regards,

Kan

Re: [Haudi Crypto, Inc.][SE050]Proposal for BIP32 Support in SE050

Thank you for sharing your detailed proposal

We have reviewed your Level‑2 request. Based on our current analysis:

Some parts of the BIP32 flow can already be executed inside the secure element.

For example, EC point multiplication can be performed entirely within SE050, and the resulting point can be stored in an SE object. This allows certain chained operations to be kept inside the secure element boundary.

However, other required steps—such as securely chaining HMAC‑SHA512 inside the secure element etc. are not feasible with the current IoT applet command set.

We have taken your feedback and submitted it as an official Change Request (CR) for evaluation by our R&D team. However, any change if it happens for the generic product, it could not be in near future.

We will keep you updated as soon as we receive feedback on the CR. Moreover, for your level 1 limitation you can consider using transient objects .

Thank you