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annotate nss/lib/freebl/secrng.h @ 1:247cffdc9b89

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Add a pesodo config file for inlcude directories and library names
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 13:00:06 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5 #ifndef _SECRNG_H_
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6 #define _SECRNG_H_
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7 /*
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8 * secrng.h - public data structures and prototypes for the secure random
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9 * number generator
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10 */
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11
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12 /******************************************/
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13 /*
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14 ** Random number generation. A cryptographically strong random number
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15 ** generator.
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16 */
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17
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18 #include "blapi.h"
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19
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20 /* the number of bytes to read from the system random number generator */
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21 #define SYSTEM_RNG_SEED_COUNT 1024
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22
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23 SEC_BEGIN_PROTOS
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24
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25 /*
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26 ** The following functions are provided by the security library
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27 ** but are differently implemented for the UNIX, Win, and OS/2
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28 ** versions
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29 */
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30
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31 /*
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32 ** Get the "noisiest" information available on the system.
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33 ** The amount of data returned depends on the system implementation.
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34 ** It will not exceed maxbytes, but may be (much) less.
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35 ** Returns number of noise bytes copied into buf, or zero if error.
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36 */
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37 extern size_t RNG_GetNoise(void *buf, size_t maxbytes);
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38
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39 /*
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40 ** RNG_SystemInfoForRNG should be called before any use of SSL. It
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41 ** gathers up the system specific information to help seed the
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42 ** state of the global random number generator.
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43 */
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44 extern void RNG_SystemInfoForRNG(void);
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45
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46 /*
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47 ** Use the contents (and stat) of a file to help seed the
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48 ** global random number generator.
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49 */
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50 extern void RNG_FileForRNG(const char *filename);
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51
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52 /*
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53 ** Get maxbytes bytes of random data from the system random number
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54 ** generator.
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55 ** Returns the number of bytes copied into buf -- maxbytes if success
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56 ** or zero if error.
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57 ** Errors:
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58 ** PR_NOT_IMPLEMENTED_ERROR There is no system RNG on the platform.
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59 ** SEC_ERROR_NEED_RANDOM The system RNG failed.
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60 */
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61 extern size_t RNG_SystemRNG(void *buf, size_t maxbytes);
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62
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63 SEC_END_PROTOS
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64
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65 #endif /* _SECRNG_H_ */
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