C++ (Cpp) _rs_rekey 예제들

예제 #1

파일: arc4random.c 프로젝트: blep/getdns

static void
_rs_stir(void)
{
	u_char rnd[KEYSZ + IVSZ];

	if (getentropy(rnd, sizeof rnd) == -1) {
#ifdef SIGKILL
		raise(SIGKILL);
#else
		exit(9); /* windows */
#endif
	}

	if (!rs)
		_rs_init(rnd, sizeof(rnd));
	else
		_rs_rekey(rnd, sizeof(rnd));
	explicit_bzero(rnd, sizeof(rnd));	/* discard source seed */

	/* invalidate rs_buf */
	rs->rs_have = 0;
	memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf));

	rs->rs_count = 1600000;
}

예제 #2

파일: alt_arc4random.c 프로젝트: yxdh/pure-ftpd-for-VMWARE-ESXi

static void
_rs_random_buf(void *_buf, size_t n)
{
    unsigned char *buf = (unsigned char *)_buf;
    size_t m;

    _rs_stir_if_needed(n);
    while (n > 0) {
        if (rs_have > 0) {
            if (n < rs_have) {
                m = n;
            } else {
                m = rs_have;
            }
            memcpy(buf, rs_buf + RSBUFSZ - rs_have, m);
            pure_memzero(rs_buf + RSBUFSZ - rs_have, m);
            buf += m;
            n -= m;
            rs_have -= m;
        }
        if (rs_have == 0) {
            _rs_rekey(NULL, 0);
        }
    }
}

예제 #3

파일: arc4random.c 프로젝트: ChatLounge/ChatServices

static void
_rs_stir(void)
{
	unsigned char rnd[KEYSZ + IVSZ];

#ifdef WITH_OPENSSL
	if (RAND_bytes(rnd, sizeof(rnd)) <= 0)
		fatal("Couldn't obtain random bytes (error %ld)",
		    ERR_get_error());
#else
	getrnd(rnd, sizeof(rnd));
#endif

	if (!rs_initialized) {
		rs_initialized = 1;
		_rs_init(rnd, sizeof(rnd));
	} else
		_rs_rekey(rnd, sizeof(rnd));
	explicit_bzero(rnd, sizeof(rnd));

	/* invalidate rs_buf */
	rs_have = 0;
	memset(rs_buf, 0, RSBUFSZ);

	rs_count = 1600000;
}

예제 #4

파일: arc4random.c 프로젝트: JackieXie168/libbsd

void
arc4random_addrandom(unsigned char *dat, int datlen)
{
	_ARC4_LOCK();
	_rs_stir_if_needed(datlen);
	_rs_rekey(dat, datlen);
	_ARC4_UNLOCK();
}

예제 #5

파일: alt_arc4random.c 프로젝트: yxdh/pure-ftpd-for-VMWARE-ESXi

static inline void
_rs_random_u32(crypto_uint4 *val)
{
    _rs_stir_if_needed(sizeof(*val));
    if (rs_have < sizeof(*val)) {
        _rs_rekey(NULL, 0);
    }
    memcpy(val, rs_buf + RSBUFSZ - rs_have, sizeof(*val));
    pure_memzero(rs_buf + RSBUFSZ - rs_have, sizeof(*val));
    rs_have -= sizeof(*val);
}

예제 #6

파일: arc4random.c 프로젝트: ChatLounge/ChatServices

static inline void
_rs_random_u32(uint32_t *val)
{
	_rs_stir_if_needed(sizeof(*val));
	if (rs_have < sizeof(*val))
		_rs_rekey(NULL, 0);
	memcpy(val, rs_buf + RSBUFSZ - rs_have, sizeof(*val));
	memset(rs_buf + RSBUFSZ - rs_have, 0, sizeof(*val));
	rs_have -= sizeof(*val);
	return;
}

예제 #7

파일: arc4random.c 프로젝트: blep/getdns

static inline void
_rs_random_u32(uint32_t *val)
{
	u_char *keystream;
	_rs_stir_if_needed(sizeof(*val));
	if (rs->rs_have < sizeof(*val))
		_rs_rekey(NULL, 0);
	keystream = rsx->rs_buf + sizeof(rsx->rs_buf) - rs->rs_have;
	memcpy(val, keystream, sizeof(*val));
	memset(keystream, 0, sizeof(*val));
	rs->rs_have -= sizeof(*val);
}

예제 #8

파일: alt_arc4random.c 프로젝트: yxdh/pure-ftpd-for-VMWARE-ESXi

static void
_rs_stir(void)
{
    unsigned char rnd[KEYSZ + IVSZ];

    if (!rs_initialized) {
        random_data_source_fd = _rs_random_dev_open();
    }
    if (random_data_source_fd != -1) {
        safe_read(random_data_source_fd, rnd, sizeof rnd);
    } else {
#ifdef HAVE_RANDOM_DEV
        _exit(1);
#else
        size_t i = (size_t) 0U;
# ifdef HAVE_ARC4RANDOM
        crypto_uint4 r;
        do {
            r = arc4random();
            memcpy(&rnd[i], &r, (size_t) 4U);
            i += (size_t) 4U;
        } while (i < sizeof(rnd));
# elif defined(HAVE_RANDOM)
        unsigned short r;
        do {
            r = (unsigned short) random();
            rnd[i++] = r & 0xFF;
            rnd[i++] = (r << 8) & 0xFF;
        } while (i < sizeof(rnd));
# else
        unsigned char r;
        do {
            r = (unsigned char) rand();
            rnd[i++] = r;
        } while (i < sizeof(rnd));
# endif
#endif
    }
    if (!rs_initialized) {
        rs_initialized = 1;
        _rs_init(rnd, sizeof rnd);
    } else {
        _rs_rekey(rnd, sizeof rnd);
    }
    pure_memzero(rnd, sizeof rnd);

    /* invalidate rs_buf */
    rs_have = 0;
    pure_memzero(rs_buf, RSBUFSZ);

    rs_count = 1600000;
}

예제 #9

파일: arc4random.c 프로젝트: ChatLounge/ChatServices

void
arc4random_addrandom(unsigned char *dat, int datlen)
{
	int m;

	_ARC4_LOCK();
	if (!rs_initialized)
		_rs_stir();
	while (datlen > 0) {
		m = MIN(datlen, KEYSZ + IVSZ);
		_rs_rekey(dat, m);
		dat += m;
		datlen -= m;
	}
	_ARC4_UNLOCK();
}

예제 #10

파일: arc4random.c 프로젝트: MIPS/bionic

static void
_rs_stir(void)
{
	u_char rnd[KEYSZ + IVSZ];

	if (getentropy(rnd, sizeof rnd) == -1)
		_getentropy_fail();

	if (!rs)
		_rs_init(rnd, sizeof(rnd));
	else
		_rs_rekey(rnd, sizeof(rnd));
	explicit_bzero(rnd, sizeof(rnd));	/* discard source seed */

	/* invalidate rs_buf */
	rs->rs_have = 0;
	memset(rsx->rs_buf, 0, sizeof(rsx->rs_buf));

	rs->rs_count = 1600000;
}

예제 #11

파일: arc4random.c 프로젝트: ChatLounge/ChatServices

static inline void
_rs_random_buf(void *_buf, size_t n)
{
	unsigned char *buf = (unsigned char *)_buf;
	size_t m;

	_rs_stir_if_needed(n);
	while (n > 0) {
		if (rs_have > 0) {
			m = MIN(n, rs_have);
			memcpy(buf, rs_buf + RSBUFSZ - rs_have, m);
			memset(rs_buf + RSBUFSZ - rs_have, 0, m);
			buf += m;
			n -= m;
			rs_have -= m;
		}
		if (rs_have == 0)
			_rs_rekey(NULL, 0);
	}
}

예제 #12

파일: arc4random.c 프로젝트: blep/getdns

static inline void
_rs_random_buf(void *_buf, size_t n)
{
	u_char *buf = (u_char *)_buf;
	u_char *keystream;
	size_t m;

	_rs_stir_if_needed(n);
	while (n > 0) {
		if (rs->rs_have > 0) {
			m = arc4_min(n, rs->rs_have);
			keystream = rsx->rs_buf + sizeof(rsx->rs_buf)
			    - rs->rs_have;
			memcpy(buf, keystream, m);
			memset(keystream, 0, m);
			buf += m;
			n -= m;
			rs->rs_have -= m;
		}
		if (rs->rs_have == 0)
			_rs_rekey(NULL, 0);
	}
}