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annotate libtomcrypt/src/encauth/chachapoly/chacha20poly1305_init.c @ 1861:2b3a8026a6ce

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Add re-exec for server This allows ASLR to re-randomize the address space for every connection, preventing some vulnerabilities from being exploitable by repeated probing. Overhead (memory and time) is yet to be confirmed. At present this is only enabled on Linux. Other BSD platforms with fexecve() would probably also work though have not been tested.
author Matt Johnston <matt@ucc.asn.au>
date Sun, 30 Jan 2022 10:14:56 +0800
parents 6dba84798cd5
children
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6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 #include "tomcrypt.h"
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11
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12 #ifdef LTC_CHACHA20POLY1305_MODE
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13
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14 /**
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15 Initialize an ChaCha20Poly1305 context (only the key)
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16 @param st [out] The destination of the ChaCha20Poly1305 state
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17 @param key The secret key
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18 @param keylen The length of the secret key (octets)
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19 @return CRYPT_OK if successful
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20 */
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21 int chacha20poly1305_init(chacha20poly1305_state *st, const unsigned char *key, unsigned long keylen)
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22 {
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23 return chacha_setup(&st->chacha, key, keylen, 20);
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24 }
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25
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26 #endif
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27
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28 /* ref: $Format:%D$ */
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29 /* git commit: $Format:%H$ */
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30 /* commit time: $Format:%ai$ */