diff options
| -rw-r--r-- | crypto/random-platform.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/crypto/random-platform.c b/crypto/random-platform.c index 7541b4cae7..f995fc0ef1 100644 --- a/crypto/random-platform.c +++ b/crypto/random-platform.c @@ -32,7 +32,14 @@ static int fd; /* a file handle to either /dev/urandom or /dev/random */ int qcrypto_random_init(Error **errp) { -#ifndef _WIN32 +#ifdef _WIN32 + if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, + CRYPT_SILENT | CRYPT_VERIFYCONTEXT)) { + error_setg_win32(errp, GetLastError(), + "Unable to create cryptographic provider"); + return -1; + } +#else /* TBD perhaps also add support for BSD getentropy / Linux * getrandom syscalls directly */ fd = open("/dev/urandom", O_RDONLY); @@ -44,15 +51,7 @@ int qcrypto_random_init(Error **errp) error_setg(errp, "No /dev/urandom or /dev/random found"); return -1; } -#else - if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, - CRYPT_SILENT | CRYPT_VERIFYCONTEXT)) { - error_setg_win32(errp, GetLastError(), - "Unable to create cryptographic provider"); - return -1; - } #endif - return 0; } @@ -60,7 +59,15 @@ int qcrypto_random_bytes(uint8_t *buf G_GNUC_UNUSED, size_t buflen G_GNUC_UNUSED, Error **errp) { -#ifndef _WIN32 +#ifdef _WIN32 + if (!CryptGenRandom(hCryptProv, buflen, buf)) { + error_setg_win32(errp, GetLastError(), + "Unable to read random bytes"); + return -1; + } + + return 0; +#else int ret = -1; int got; @@ -82,13 +89,5 @@ int qcrypto_random_bytes(uint8_t *buf G_GNUC_UNUSED, ret = 0; cleanup: return ret; -#else - if (!CryptGenRandom(hCryptProv, buflen, buf)) { - error_setg_win32(errp, GetLastError(), - "Unable to read random bytes"); - return -1; - } - - return 0; #endif } |