Deduplicate crypto libraries, saving ~49KB flash #1632
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Fixes ed25519_verify() stack overflow by making large locals static, removing the need for rweather's Ed25519::verify() workaround. Vendors only the AES128+SHA256 subset of rweather/Crypto instead of all 37 files.
weebl2000
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Feb 8, 2026
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Nice improvement — vendoring the minimal subset is clean and the stack savings are real (~1.8KB moved to BSS). One concern about the static locals in ge.c.
weebl2000
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JosiahWI
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Feb 9, 2026
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The code looks great. I'm giving my capstone team an opportunity to build this PR and test it and then I'll approve. :)
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…_verify to ensure thread safety during concurrent calls.
JosiahWI
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The reduction in program size from this PR will be very useful for my school capstone. One of my teammates has built our branch with it and confirmed that the Flash saving makes it possible to fit the program on an nRF52840 Dongle alongside an InternalFS and DFU bootloader.
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Fixes a stack overflow in ed25519_verify() by making large local variables static, removing the need for rweather's Ed25519::verify() workaround.
Only vendors the AES128+SHA256 subset of rweather/Crypto instead of all 37 files.
No issues observed so far. Additional testing and confirmation are welcome. This change frees up stack space for future improvements and improves support for resource-limited devices.