Mercurial > dropbear
view libtomcrypt/src/headers/tomcrypt_prng.h @ 447:278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
so that if it exits early (because something's already listening etc)
then it will return an exitcode of 1.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 19 Jul 2007 15:54:18 +0000 (2007-07-19) |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
line wrap: on
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/* ---- PRNG Stuff ---- */ #ifdef YARROW struct yarrow_prng { int cipher, hash; unsigned char pool[MAXBLOCKSIZE]; symmetric_CTR ctr; LTC_MUTEX_TYPE(prng_lock) }; #endif #ifdef RC4 struct rc4_prng { int x, y; unsigned char buf[256]; }; #endif #ifdef FORTUNA struct fortuna_prng { hash_state pool[FORTUNA_POOLS]; /* the pools */ symmetric_key skey; unsigned char K[32], /* the current key */ IV[16]; /* IV for CTR mode */ unsigned long pool_idx, /* current pool we will add to */ pool0_len, /* length of 0'th pool */ wd; ulong64 reset_cnt; /* number of times we have reset */ LTC_MUTEX_TYPE(prng_lock) }; #endif #ifdef SOBER128 struct sober128_prng { ulong32 R[17], /* Working storage for the shift register */ initR[17], /* saved register contents */ konst, /* key dependent constant */ sbuf; /* partial word encryption buffer */ int nbuf, /* number of part-word stream bits buffered */ flag, /* first add_entropy call or not? */ set; /* did we call add_entropy to set key? */ }; #endif typedef union Prng_state { char dummy[1]; #ifdef YARROW struct yarrow_prng yarrow; #endif #ifdef RC4 struct rc4_prng rc4; #endif #ifdef FORTUNA struct fortuna_prng fortuna; #endif #ifdef SOBER128 struct sober128_prng sober128; #endif } prng_state; /** PRNG descriptor */ extern struct ltc_prng_descriptor { /** Name of the PRNG */ char *name; /** size in bytes of exported state */ int export_size; /** Start a PRNG state @param prng [out] The state to initialize @return CRYPT_OK if successful */ int (*start)(prng_state *prng); /** Add entropy to the PRNG @param in The entropy @param inlen Length of the entropy (octets)\ @param prng The PRNG state @return CRYPT_OK if successful */ int (*add_entropy)(const unsigned char *in, unsigned long inlen, prng_state *prng); /** Ready a PRNG state to read from @param prng The PRNG state to ready @return CRYPT_OK if successful */ int (*ready)(prng_state *prng); /** Read from the PRNG @param out [out] Where to store the data @param outlen Length of data desired (octets) @param prng The PRNG state to read from @return Number of octets read */ unsigned long (*read)(unsigned char *out, unsigned long outlen, prng_state *prng); /** Terminate a PRNG state @param prng The PRNG state to terminate @return CRYPT_OK if successful */ int (*done)(prng_state *prng); /** Export a PRNG state @param out [out] The destination for the state @param outlen [in/out] The max size and resulting size of the PRNG state @param prng The PRNG to export @return CRYPT_OK if successful */ int (*pexport)(unsigned char *out, unsigned long *outlen, prng_state *prng); /** Import a PRNG state @param in The data to import @param inlen The length of the data to import (octets) @param prng The PRNG to initialize/import @return CRYPT_OK if successful */ int (*pimport)(const unsigned char *in, unsigned long inlen, prng_state *prng); /** Self-test the PRNG @return CRYPT_OK if successful, CRYPT_NOP if self-testing has been disabled */ int (*test)(void); } prng_descriptor[]; #ifdef YARROW int yarrow_start(prng_state *prng); int yarrow_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng); int yarrow_ready(prng_state *prng); unsigned long yarrow_read(unsigned char *out, unsigned long outlen, prng_state *prng); int yarrow_done(prng_state *prng); int yarrow_export(unsigned char *out, unsigned long *outlen, prng_state *prng); int yarrow_import(const unsigned char *in, unsigned long inlen, prng_state *prng); int yarrow_test(void); extern const struct ltc_prng_descriptor yarrow_desc; #endif #ifdef FORTUNA int fortuna_start(prng_state *prng); int fortuna_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng); int fortuna_ready(prng_state *prng); unsigned long fortuna_read(unsigned char *out, unsigned long outlen, prng_state *prng); int fortuna_done(prng_state *prng); int fortuna_export(unsigned char *out, unsigned long *outlen, prng_state *prng); int fortuna_import(const unsigned char *in, unsigned long inlen, prng_state *prng); int fortuna_test(void); extern const struct ltc_prng_descriptor fortuna_desc; #endif #ifdef RC4 int rc4_start(prng_state *prng); int rc4_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng); int rc4_ready(prng_state *prng); unsigned long rc4_read(unsigned char *out, unsigned long outlen, prng_state *prng); int rc4_done(prng_state *prng); int rc4_export(unsigned char *out, unsigned long *outlen, prng_state *prng); int rc4_import(const unsigned char *in, unsigned long inlen, prng_state *prng); int rc4_test(void); extern const struct ltc_prng_descriptor rc4_desc; #endif #ifdef SPRNG int sprng_start(prng_state *prng); int sprng_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng); int sprng_ready(prng_state *prng); unsigned long sprng_read(unsigned char *out, unsigned long outlen, prng_state *prng); int sprng_done(prng_state *prng); int sprng_export(unsigned char *out, unsigned long *outlen, prng_state *prng); int sprng_import(const unsigned char *in, unsigned long inlen, prng_state *prng); int sprng_test(void); extern const struct ltc_prng_descriptor sprng_desc; #endif #ifdef SOBER128 int sober128_start(prng_state *prng); int sober128_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng); int sober128_ready(prng_state *prng); unsigned long sober128_read(unsigned char *out, unsigned long outlen, prng_state *prng); int sober128_done(prng_state *prng); int sober128_export(unsigned char *out, unsigned long *outlen, prng_state *prng); int sober128_import(const unsigned char *in, unsigned long inlen, prng_state *prng); int sober128_test(void); extern const struct ltc_prng_descriptor sober128_desc; #endif int find_prng(const char *name); int register_prng(const struct ltc_prng_descriptor *prng); int unregister_prng(const struct ltc_prng_descriptor *prng); int prng_is_valid(int idx); LTC_MUTEX_PROTO(ltc_prng_mutex) /* Slow RNG you **might** be able to use to seed a PRNG with. Be careful as this * might not work on all platforms as planned */ unsigned long rng_get_bytes(unsigned char *out, unsigned long outlen, void (*callback)(void)); int rng_make_prng(int bits, int wprng, prng_state *prng, void (*callback)(void)); /* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_prng.h,v $ */ /* $Revision: 1.8 $ */ /* $Date: 2006/11/05 01:36:43 $ */