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Add bounded structured crypto operations

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udo
2026-07-22 13:43:21 +00:00
parent 68b73343a2
commit 3d155203bd
15 changed files with 564 additions and 0 deletions
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src/wasm/worker.cpp
+22
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@@ -3674,6 +3674,28 @@ private:
return(add([self](Caller, Span<const Val> args, Span<Val> results) -> Result<std::monostate, Trap> { String password,encoded; self->hostcall_read(args[0].i32(), args[1].i32(), password); self->hostcall_read(args[2].i32(), args[3].i32(), encoded); bool valid=password_verify_native(password,encoded); results[0]=Val((int32_t)(valid?1:0)); return(std::monostate()); }));
if(mod == "env" && name == "uce_host_password_needs_rehash")
return(add([self](Caller, Span<const Val> args, Span<Val> results) -> Result<std::monostate, Trap> { String encoded; self->hostcall_read(args[0].i32(), args[1].i32(), encoded); results[0]=Val((int32_t)(password_needs_rehash_native(encoded)?1:0)); return(std::monostate()); }));
if(mod == "env" && name == "uce_host_crypto_operation")
return(add([self](Caller, Span<const Val> args, Span<Val> results) -> Result<std::monostate, Trap> {
String encoded, out;
DValue request, response;
String error;
int32_t input_size = args[1].i32();
u32 cap = (u32)args[3].i32();
int32_t buf = args[2].i32();
String stage_key = "crypto_operation";
if(!self->hostcall_staged(stage_key, out))
{
if(input_size > 0 && input_size <= 64 * 1024 && self->hostcall_read(args[0].i32(), input_size, encoded) == "" && ucb_decode(encoded, request, &error))
response = crypto_operation_native(request);
else
response["error"] = "invalid_request";
out = ucb_encode(response);
if(buf == 0) self->hostcall_stage(stage_key, out);
}
if(buf && cap >= out.size()) self->hostcall_write(buf, out);
results[0] = Val((int32_t)out.size());
return(std::monostate());
}));
if(mod == "env" && name == "uce_host_log")
return(add([self](Caller, Span<const Val> args, Span<Val>) -> Result<std::monostate, Trap> {
String text;