Mercurial > dropbear
annotate libtomcrypt/tests/pkcs_1_pss_test.c @ 1930:299f4f19ba19
Add /usr/sbin and /sbin to default root PATH
When dropbear is used in a very restricted environment (such as in a
initrd), the default user shell is often also very restricted
and doesn't take care of setting the PATH so the user ends up
with the PATH set by dropbear. Unfortunately, dropbear always
sets "/usr/bin:/bin" as default PATH even for the root user
which should have /usr/sbin and /sbin too.
For a concrete instance of this problem, see the "Remote Unlocking"
section in this tutorial: https://paxswill.com/blog/2013/11/04/encrypted-raspberry-pi/
It speaks of a bug in the initramfs script because it's written "blkid"
instead of "/sbin/blkid"... this is just because the scripts from the
initramfs do not expect to have a PATH without the sbin directories and
because dropbear is not setting the PATH appropriately for the root user.
I'm thus suggesting to use the attached patch to fix this misbehaviour (I
did not test it, but it's easy enough). It might seem anecdotic but
multiple Kali users have been bitten by this.
From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903403
author | Raphael Hertzog <hertzog@debian.org> |
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date | Mon, 09 Jul 2018 16:27:53 +0200 |
parents | 6dba84798cd5 |
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rev | line source |
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1471
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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 #include <tomcrypt_test.h> |
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10 |
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11 #if defined(LTC_PKCS_1) && defined(LTC_TEST_MPI) |
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12 |
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13 #include "../notes/rsa-testvectors/pss-vect.c" |
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14 |
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15 |
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16 |
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17 int pkcs_1_pss_test(void) |
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18 { |
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19 struct ltc_prng_descriptor* no_prng_desc = no_prng_desc_get(); |
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20 int prng_idx = register_prng(no_prng_desc); |
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21 int hash_idx = find_hash("sha1"); |
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22 unsigned int i; |
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23 unsigned int j; |
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24 |
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25 DO(prng_is_valid(prng_idx)); |
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26 DO(hash_is_valid(hash_idx)); |
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27 |
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28 for (i = 0; i < sizeof(testcases_pss)/sizeof(testcases_pss[0]); ++i) { |
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29 testcase_t* t = &testcases_pss[i]; |
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30 rsa_key k, *key = &k; |
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31 DOX(mp_init_multi(&key->e, &key->d, &key->N, &key->dQ, |
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32 &key->dP, &key->qP, &key->p, &key->q, NULL), t->name); |
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33 |
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34 DOX(mp_read_unsigned_bin(key->e, t->rsa.e, t->rsa.e_l), t->name); |
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35 DOX(mp_read_unsigned_bin(key->d, t->rsa.d, t->rsa.d_l), t->name); |
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36 DOX(mp_read_unsigned_bin(key->N, t->rsa.n, t->rsa.n_l), t->name); |
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37 DOX(mp_read_unsigned_bin(key->dQ, t->rsa.dQ, t->rsa.dQ_l), t->name); |
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38 DOX(mp_read_unsigned_bin(key->dP, t->rsa.dP, t->rsa.dP_l), t->name); |
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39 DOX(mp_read_unsigned_bin(key->qP, t->rsa.qInv, t->rsa.qInv_l), t->name); |
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40 DOX(mp_read_unsigned_bin(key->q, t->rsa.q, t->rsa.q_l), t->name); |
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41 DOX(mp_read_unsigned_bin(key->p, t->rsa.p, t->rsa.p_l), t->name); |
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42 key->type = PK_PRIVATE; |
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43 |
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44 for (j = 0; j < sizeof(t->data)/sizeof(t->data[0]); ++j) { |
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45 rsaData_t* s = &t->data[j]; |
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46 unsigned char buf[20], obuf[256]; |
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47 unsigned long buflen = sizeof(buf), obuflen = sizeof(obuf); |
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48 int stat; |
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49 prng_descriptor[prng_idx].add_entropy(s->o2, s->o2_l, (prng_state*)no_prng_desc); |
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50 DOX(hash_memory(hash_idx, s->o1, s->o1_l, buf, &buflen), s->name); |
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51 DOX(rsa_sign_hash(buf, buflen, obuf, &obuflen, (prng_state*)no_prng_desc, prng_idx, hash_idx, s->o2_l, key), s->name); |
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52 DOX(obuflen == (unsigned long)s->o3_l?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name); |
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53 DOX(memcmp(s->o3, obuf, s->o3_l)==0?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name); |
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54 DOX(rsa_verify_hash(obuf, obuflen, buf, buflen, hash_idx, s->o2_l, &stat, key), s->name); |
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55 DOX(stat == 1?CRYPT_OK:CRYPT_FAIL_TESTVECTOR, s->name); |
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56 } /* for */ |
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57 |
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58 mp_clear_multi(key->d, key->e, key->N, key->dQ, key->dP, key->qP, key->p, key->q, NULL); |
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59 } /* for */ |
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60 |
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61 unregister_prng(no_prng_desc); |
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62 no_prng_desc_free(no_prng_desc); |
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63 |
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64 return 0; |
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65 } |
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66 |
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67 #else |
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68 |
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69 int pkcs_1_pss_test(void) |
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70 { |
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71 return CRYPT_NOP; |
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72 } |
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73 |
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74 #endif |
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75 |
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76 |
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77 /* ref: $Format:%D$ */ |
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78 /* git commit: $Format:%H$ */ |
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79 /* commit time: $Format:%ai$ */ |