annotate crypto_desc.c @ 1794:ed20d805b332

Disable UNAUTH_CLOSE_DELAY by default
author Matt Johnston <matt@ucc.asn.au>
date Tue, 02 Mar 2021 22:20:14 +0800
parents 34d9d3c022ce
children 13cb8cc1b0e4
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1 #include "includes.h"
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2 #include "dbutil.h"
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3 #include "crypto_desc.h"
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4 #include "ltc_prng.h"
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5 #include "ecc.h"
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6 #include "dbrandom.h"
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7
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8 #if DROPBEAR_LTC_PRNG
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9 int dropbear_ltc_prng = -1;
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10 #endif
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11
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12 /* Wrapper for libtommath */
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13 static mp_err dropbear_rand_source(void* out, size_t size) {
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14 genrandom((unsigned char*)out, (unsigned int)size);
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15 return MP_OKAY;
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16 }
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17
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18
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19 /* Register the compiled in ciphers.
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20 * This should be run before using any of the ciphers/hashes */
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21 void crypto_init() {
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22
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23 const struct ltc_cipher_descriptor *regciphers[] = {
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24 #if DROPBEAR_AES
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25 &aes_desc,
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26 #endif
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27 #if DROPBEAR_BLOWFISH
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28 &blowfish_desc,
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29 #endif
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30 #if DROPBEAR_TWOFISH
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31 &twofish_desc,
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32 #endif
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33 #if DROPBEAR_3DES
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34 &des3_desc,
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35 #endif
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36 NULL
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37 };
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38
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39 const struct ltc_hash_descriptor *reghashes[] = {
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40 /* we need sha1 for hostkey stuff regardless */
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41 &sha1_desc,
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42 #if DROPBEAR_MD5_HMAC
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43 &md5_desc,
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44 #endif
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45 #if DROPBEAR_SHA256
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46 &sha256_desc,
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47 #endif
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48 #if DROPBEAR_SHA384
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49 &sha384_desc,
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50 #endif
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51 #if DROPBEAR_SHA512
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52 &sha512_desc,
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53 #endif
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54 NULL
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55 };
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56 int i;
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57
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58 for (i = 0; regciphers[i] != NULL; i++) {
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59 if (register_cipher(regciphers[i]) == -1) {
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60 dropbear_exit("Error registering crypto");
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61 }
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62 }
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63
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64 for (i = 0; reghashes[i] != NULL; i++) {
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65 if (register_hash(reghashes[i]) == -1) {
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66 dropbear_exit("Error registering crypto");
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67 }
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68 }
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69
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70 #if DROPBEAR_LTC_PRNG
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71 dropbear_ltc_prng = register_prng(&dropbear_prng_desc);
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72 if (dropbear_ltc_prng == -1) {
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73 dropbear_exit("Error registering crypto");
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74 }
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75 #endif
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76
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77 mp_rand_source(dropbear_rand_source);
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78
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79 #if DROPBEAR_ECC
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80 ltc_mp = ltm_desc;
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81 dropbear_ecc_fill_dp();
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82 #endif
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83 }
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84