Add X25519 non-blocking support and async example improvements#9721
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dgarske wants to merge 3 commits intowolfSSL:masterfrom
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Add X25519 non-blocking support and async example improvements#9721dgarske wants to merge 3 commits intowolfSSL:masterfrom
dgarske wants to merge 3 commits intowolfSSL:masterfrom
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Jenkins retest this please - CI issue PRB-Master-Job |
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## Summary - Add non-blocking (incremental) Curve25519 key generation and shared secret via `WC_X25519_NONBLOCK`, modeled after the existing ECC non-blocking pattern (`WC_ECC_NONBLOCK`) - Implement `curve25519_nb()` and `fe_inv__distinct_nb()` in `fe_low_mem.c` as state-machine variants that return `FP_WOULDBLOCK` to yield after each field multiply - Add `wc_curve25519_set_nonblock()` API to attach/detach non-blocking context to a key - Integrate X25519 non-blocking with TLS 1.2/1.3 key share generation and shared secret in `tls.c` and `internal.c` (behind `WC_X25519_NONBLOCK && WOLFSSL_ASYNC_CRYPT_SW`) - Add `--enable-curve25519=nonblock` configure option (auto-enables `--enable-asynccrypt` and `--enable-asynccrypt-sw`) - Add X25519 async software dispatch cases in `async.c` and types in `async.h` - Fix async guard in `curve25519.c` to require `WOLFSSL_ASYNC_CRYPT_SW` (matching other algorithms) - Overhaul `examples/async/` client/server: non-blocking I/O via `WOLFSSL_USER_IO`, standalone `Makefile`, X25519/ECC mode selection, CI-friendly ready-file sync - Add `examples/configs/user_settings_curve25519nonblock.h` and CI coverage in `os-check.yml` and new `async-examples.yml` workflow - Add wolfcrypt test and API test coverage for X25519 non-blocking
…ion in SP ECC non-blocking.
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Jenkins retest this please: "EOFException" |
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Description
Add non-blocking (non-blocking crypto) support for Curve25519 (X25519) key generation and shared secret. This enables
WC_X25519_NONBLOCKfor use with TLS, similar to the existingWC_ECC_NONBLOCKsupport. RequiresCURVE25519_SMALL(the smallfe_low_mem.cimplementation).New Features
wc_curve25519_make_key) and shared secret (wc_curve25519_shared_secret) usingFP_WOULDBLOCKyield pattern.curve25519_nb()function infe_low_mem.cwith state machine for iterative scalar multiplication.WC_X25519_NONBLOCKsupport insrc/tls.candsrc/internal.cfor key gen and ECDH during handshake.examples/async/) with standaloneMakefile(no configure needed).user_settings_curve25519nonblock.hexample config..github/workflows/async-examples.yml).WOLFSSL_STATIC_MEMORYsupport in async examples usingwolfSSL_CTX_load_static_memory.Fixes
curve25519.c— requireWOLFSSL_ASYNC_CRYPT_SWfor software async simulation symbols.sp_c32.c,sp_c64.c,sp_x86_64.c,sp_arm32.c,sp_arm64.c,sp_armthumb.c,sp_cortexm.c) — movetypedefbefore statements.register ... asm()pedantic warning on macOS insp_x86_64.cwith__APPLE__ && __MACH__guard.user_settings_curve25519nonblock.htoexamples/configs/include.am.Testing
WOLFSSL_SMALL_CERT_VERIFY,WOLFSSL_STATIC_MEMORY.WC_PENDING_Ecount >= 100 per test to confirm async crypto is exercised.wolfcrypt/test/test.cupdated with X25519 non-blocking test cases../configure --enable-curve25519=small CFLAGS="-DWC_X25519_NONBLOCK"and./configure CFLAGS="-DWC_X25519_NONBLOCK" --enable-curve25519=small --enable-asynccrypt.