Mercurial > dropbear

annotate dh_groups.h @ 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 ee6ccc2ecc47
children
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1 #ifndef DROPBEAR_DH_GROUPS_H
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2 #define DROPBEAR_DH_GROUPS_H
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3 #include "options.h"
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4
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5 #if DROPBEAR_NORMAL_DH
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6
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7 #if DROPBEAR_DH_GROUP1
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8 #define DH_P_1_LEN 128
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9 extern const unsigned char dh_p_1[DH_P_1_LEN];
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10 #endif
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11
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12 #if DROPBEAR_DH_GROUP14
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13 #define DH_P_14_LEN 256
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14 extern const unsigned char dh_p_14[DH_P_14_LEN];
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15 #endif
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17 #if DROPBEAR_DH_GROUP16
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18 #define DH_P_16_LEN 512
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19 extern const unsigned char dh_p_16[DH_P_16_LEN];
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20 #endif
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22 extern const int DH_G_VAL;
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23
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24 #endif /* DROPBEAR_NORMAL_DH */
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26 #endif