31 Aug 2024 | Updated 5 Dec 2024 [CCS]

DiosDelRayo submits CCS proposal to create offline signing library for XmrSigner

DiosDelRayo (vThor)¹ has submitted a new CCS proposal² looking to create an offline signing library³ in an effort to bring XmrSigner⁴ to production readiness and also provide a foundation for future hardware wallet development:

This proposal aims to create a minimal library for offline signing on air-gapped devices, focusing on essential features [..] This library will significantly improve XmrSigner’s performance, security, and usability while opening doors for more diverse Monero hardware wallet solutions in the future.

Total funding: 196 XMR.

ETA: (392h core + 224h optional = 616 hours total).

Milestones overview

M1: Setting up documentation site (4 hours)
M2: MVP library with C ABI (164 hours)
M3: Python cffi classes (44 hours)
M4: Building library in buildroot (44 hours)
M5: Buildroot package for Python library (12 hours)
M6: XmrSigner integration (34 hours)
M7: XmrSigner on XmrSigner OS (buildroot2) (42 hours)
M8: Unify XmrSigner-related components (48 hours)
M9: (Optional/Stretch) Clean-up and Optimization (82 hours)
M10: (Stretch) Xmr Signer Pure (Rewrite in C++) (98 hours)
M11: (Stretch) JNI classes (44 hours)

It is worth noting that DiosDelRayo has recently closed their previous proposal⁵ to modularize the Monero codebase, but is still working on completing the XmrSigner CCS⁶.

To view the full proposal, share your feedback, ask questions and support this CCS, consult !495².

This is an ongoing story and the report will be updated when new information is available.

Update 24/10/26: proposal modified (total funding, hours, added core + optional/’stretch’ milestones); progress tracker website available⁷; proposal will probably be merged without the overfunding clause⁸.

Update 24/10/29: moved to funding stage⁹.

Update 24/10/30: project roadmap and tasks available on Github¹⁰.

Update 24/11/6: library docs available¹¹.

Update 24/11/17: fully funded¹².

Update 24/12/5: progress report posted for first month¹³.

https://repo.getmonero.org/DiosDelRayo/, vthor (IRC/Libera) ↩
https://repo.getmonero.org/monero-project/ccs-proposals/-/merge_requests/495 ↩ ↩²
https://github.com/DiosDelRayo/c_abi_for_cpp_code_PoC ↩
https://monerosigner.com/ ↩
/diosdelrayo-ccs-proposal-modularize-monero-codebase/ ↩
/diosdelrayo-ccs-proposal-resurrect-monerosigner-project/ ↩
https://diosdelrayo.github.io/ ↩
https://libera.monerologs.net/monero-community/20241026#c451872 ↩
https://ccs.getmonero.org/proposals/vThorOfflineSigningLibrary_XmrSignerToProduction.html ↩
https://github.com/users/DiosDelRayo/projects/3, https://diosdelrayo.github.io/ ↩
https://otslib.monerodevs.org/sdk/ots/, https://github.com/DiosDelRayo/monero-docs/tree/ots, https://xmrsigner.github.io/docs/, https://github.com/XmrSigner/docs ↩
/diosdelrayo-offline-signing-library-xmrsigner-ccs-proposal-fully-funded/ ↩
https://repo.getmonero.org/monero-project/ccs-proposals/-/merge_requests/495#note_27559 ↩