diff options
Diffstat (limited to 'tools/genkeypair.c')
| -rw-r--r-- | tools/genkeypair.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/genkeypair.c b/tools/genkeypair.c new file mode 100644 index 0000000..7db856b --- /dev/null +++ b/tools/genkeypair.c @@ -0,0 +1,42 @@ +// *SUPER* low effort x25519 keygen tool, for lack of better tool on hand. +// To compile: +// Unix: $CC -O2 -Dbool=_Bool -o.build/genkeypair tools/genkeypair.c +// Windows: clang-cl -fuse-ld=lld -O2 -Dbool=_Bool -Fe.build/genkeypair.exe tools/genkeypair.c /link advapi32.lib + +#include <stdio.h> +#include <stdlib.h> + +#include "../src/3p/monocypher/monocypher.c" // yeah, we're doing this. +#include "../src/os.h" + +int main(void) { + unsigned char prv[32], pub[32]; + os_randombytes(prv, sizeof(prv)); + crypto_x25519_public_key(pub, prv); + // and now the worst string formatting code you've ever seen!!! + fputs("Private key: ", stdout); + for (int i = 0; i < sizeof(prv); i += 4) { + fprintf(stdout, "%.2X%.2X%.2X%.2X", + prv[i], prv[i + 1], prv[i + 2], prv[i + 3]); + } + fputs("\n{", stdout); + for (int i = 0; i < sizeof(prv) - 4; i += 4) { + fprintf(stdout, "0x%.2X, 0x%.2X, 0x%.2X, 0x%.2X, ", + prv[i], prv[i + 1], prv[i + 2], prv[i + 3]); + } + fprintf(stdout, "0x%.2X, 0x%.2X, 0x%.2X, 0x%.2X}\n\nPublic key: ", + prv[sizeof(prv) - 4], prv[sizeof(prv) - 3], + prv[sizeof(prv) - 2], prv[sizeof(prv) - 1]); + for (int i = 0; i < sizeof(pub); i += 4) { + fprintf(stdout, "%.2X%.2X%.2X%.2X", + pub[i], pub[i + 1], pub[i + 2], pub[i + 3]); + } + fputs("\n{", stdout); + for (int i = 0; i < sizeof(pub) - 4; i += 4) { + fprintf(stdout, "0x%.2X, 0x%.2X, 0x%.2X, 0x%.2X, ", + pub[i], pub[i + 1], pub[i + 2], pub[i + 3]); + } + fprintf(stdout, "0x%.2X, 0x%.2X, 0x%.2X, 0x%.2X}\n", + pub[sizeof(pub) - 4], pub[sizeof(pub) - 3], + pub[sizeof(pub) - 2], pub[sizeof(pub) - 1]); +} |