diff options
Diffstat (limited to '3rd_party/ed25519/seed.c')
-rw-r--r-- | 3rd_party/ed25519/seed.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/3rd_party/ed25519/seed.c b/3rd_party/ed25519/seed.c new file mode 100644 index 0000000..cf252b8 --- /dev/null +++ b/3rd_party/ed25519/seed.c @@ -0,0 +1,40 @@ +#include "ed25519.h" + +#ifndef ED25519_NO_SEED + +#ifdef _WIN32 +#include <windows.h> +#include <wincrypt.h> +#else +#include <stdio.h> +#endif + +int ed25519_create_seed(unsigned char *seed) { +#ifdef _WIN32 + HCRYPTPROV prov; + + if (!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) { + return 1; + } + + if (!CryptGenRandom(prov, 32, seed)) { + CryptReleaseContext(prov, 0); + return 1; + } + + CryptReleaseContext(prov, 0); +#else + FILE *f = fopen("/dev/urandom", "rb"); + + if (f == NULL) { + return 1; + } + + if(fread(seed, 1, 32, f)){} + fclose(f); +#endif + + return 0; +} + +#endif |