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Fix and test sr25519 signing in nostd #1872
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Confirmed this working in wasm |
let message = b"Hello!"; | ||
let _signature = keypair.sign(message); | ||
let _public_key = keypair.public_key(); | ||
// Subxt signer compiles (though nothing much works on this particular nostd target...): |
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maybe add a link to https://docs.rs/getrandom/latest/getrandom/#supported-targets here
@@ -66,7 +66,7 @@ hmac = { workspace = true } | |||
zeroize = { workspace = true } | |||
bip39 = { workspace = true } | |||
bip32 = { workspace = true, features = ["alloc", "secp256k1"], optional = true } | |||
schnorrkel = { workspace = true, optional = true } | |||
schnorrkel = { workspace = true, optional = true, features = ["getrandom"] } |
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perhaps update the README in the signer crate that "sr25519 needs getrandom" which isn't supported on all platforms
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can we remove the getrandom feature flag now below?
@@ -0,0 +1,51 @@ | |||
#[no_std] |
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#[no_std] | |
#![no_std] |
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which target are we testing this against WASM?
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cool
We had WASM tests for signing things, but no nostd tests. Adding them shows an issue signing via sr25519 (reported in #1871), for which adding the
getrandom
feature to schnorrkel seems to fix (pending CI passing here).I had to remove some code in
testing/no-std-tests
because signing with sr25519 isn't supported on thethumbv7em-none-eabi
target we run the nostd tests on. Previously it would compile OK because we didn't enable thegetrandom
feature, but I think if we were able to run it, we'd have seen a runtime error instead. Some other nostd targets probably handle this all OK (getrandom
has a list here: https://docs.rs/getrandom/latest/getrandom/#unsupported-targets)