Mercurial > dropbear
view fuzz/fuzz-harness.c @ 1855:35d504d59c05
Implement server-side support for sk-ecdsa U2F-backed keys (#142)
* Implement server-side support for sk-ecdsa U2F-backed keys
* Fix out-of-bounds read on normal ecdsa-sha2-[identifier] keys
* Fix one more potential out-of-bounds read
* Check if nistp256 curve is used in sk-ecdsa-sha2- key
It's the only allowed curve per PROTOCOL.u2f specification
* Implement server-side support for sk-ed25519 FIDO2-backed keys
* Keys with type sk-* make no sense as host keys, so they should be
disabled
* fix typo
* Make sk-ecdsa call buf_ecdsa_verify
This reduces code duplication, the SK code just handles the
different message format.
* Reduce sk specific code
The application id can be stored in signkey, then we don't need
to call sk-specific functions from svr-authpubkey
* Remove debugging output, which causes compilation errors with DEBUG_TRACE disabled
* Proper cleanup of sk_app
Co-authored-by: Matt Johnston <[email protected]>
author | egor-duda <egor-duda@users.noreply.github.com> |
---|---|
date | Sat, 22 Jan 2022 16:53:04 +0300 |
parents | fd00aeff38fd |
children | be236878efcf |
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#include "includes.h" #include "buffer.h" #include "dbutil.h" extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size); int main(int argc, char ** argv) { int i; buffer *input = buf_new(100000); int quiet = 0; for (i = 1; i < argc; i++) { #if DEBUG_TRACE if (strcmp(argv[i], "-v") == 0) { debug_trace = 1; TRACE(("debug printing on")) } #endif if (strcmp(argv[i], "-q") == 0) { printf("Running quiet\n"); quiet = 1; } } int old_fuzz_wrapfds = 0; for (i = 1; i < argc; i++) { if (argv[i][0] == '-') { /* ignore arguments */ continue; } char* fn = argv[i]; buf_setlen(input, 0); buf_readfile(input, fn); buf_setpos(input, 0); /* Run twice to catch problems with statefulness */ fuzz.wrapfds = old_fuzz_wrapfds; if (!quiet) { printf("Running %s once \n", fn); } LLVMFuzzerTestOneInput(input->data, input->len); if (!quiet) { printf("Running %s twice \n", fn); } LLVMFuzzerTestOneInput(input->data, input->len); if (!quiet) { printf("Done %s\n", fn); } /* Disable wrapfd so it won't interfere with buf_readfile() above */ old_fuzz_wrapfds = fuzz.wrapfds; fuzz.wrapfds = 0; } printf("Finished\n"); return 0; } // Just to let it link size_t LLVMFuzzerMutate(uint8_t *UNUSED(Data), size_t UNUSED(Size), size_t UNUSED(MaxSize)) { printf("standalone fuzzer harness shouldn't call LLVMFuzzerMutate"); abort(); return 0; }