diff options
Diffstat (limited to 'src/crypto/rand/internal.h')
| -rw-r--r-- | src/crypto/rand/internal.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/crypto/rand/internal.h b/src/crypto/rand/internal.h new file mode 100644 index 0000000..1cca7f3 --- /dev/null +++ b/src/crypto/rand/internal.h @@ -0,0 +1,40 @@ +/* Copyright (c) 2015, Google Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ + +#ifndef OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H +#define OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H + +#if defined(__cplusplus) +extern "C" { +#endif + + +/* CRYPTO_sysrand fills |len| bytes at |buf| with entropy from the operating + * system. */ +void CRYPTO_sysrand(uint8_t *buf, size_t len); + +/* CRYPTO_have_hwrand returns one iff |CRYPTO_hwrand| can be called to generate + * hardware entropy. */ +int CRYPTO_have_hwrand(void); + +/* CRYPTO_hwrand fills |len| bytes at |buf| with entropy from the hardware. + * This function can only be called if |CRYPTO_have_hwrand| returns one. */ +void CRYPTO_hwrand(uint8_t *buf, size_t len); + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H */ |