Mercurial > dropbear

annotate libtomcrypt/src/mac/f9/f9_test.c @ 1930:299f4f19ba19

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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>
date Mon, 09 Jul 2018 16:27:53 +0200
parents 6dba84798cd5
children
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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.h"
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10
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11 /**
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12 @file f9_test.c
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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13 f9 Support, Test F9 mode
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14 */
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16 #ifdef LTC_F9_MODE
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17
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18 /** Test f9-MAC mode
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19 Return CRYPT_OK on succes
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20 */
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21 int f9_test(void)
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22 {
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23 #ifdef LTC_NO_TEST
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24 return CRYPT_NOP;
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25 #else
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26 static const struct {
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27 int msglen;
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28 unsigned char K[16], M[128], T[4];
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29 } tests[] = {
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30 {
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31 20,
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32 { 0x2B, 0xD6, 0x45, 0x9F, 0x82, 0xC5, 0xB3, 0x00, 0x95, 0x2C, 0x49, 0x10, 0x48, 0x81, 0xFF, 0x48 },
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33 { 0x38, 0xA6, 0xF0, 0x56, 0xB8, 0xAE, 0xFD, 0xA9, 0x33, 0x32, 0x34, 0x62, 0x63, 0x39, 0x38, 0x61, 0x37, 0x34, 0x79, 0x40 },
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34 { 0x46, 0xE0, 0x0D, 0x4B }
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35 },
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36
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37 {
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38 105,
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39 { 0x83, 0xFD, 0x23, 0xA2, 0x44, 0xA7, 0x4C, 0xF3, 0x58, 0xDA, 0x30, 0x19, 0xF1, 0x72, 0x26, 0x35 },
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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40 { 0x36, 0xAF, 0x61, 0x44, 0x4F, 0x30, 0x2A, 0xD2,
382
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41 0x35, 0xC6, 0x87, 0x16, 0x63, 0x3C, 0x66, 0xFB, 0x75, 0x0C, 0x26, 0x68, 0x65, 0xD5, 0x3C, 0x11, 0xEA, 0x05, 0xB1, 0xE9, 0xFA, 0x49, 0xC8, 0x39, 0x8D, 0x48, 0xE1, 0xEF, 0xA5, 0x90, 0x9D, 0x39,
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42 0x47, 0x90, 0x28, 0x37, 0xF5, 0xAE, 0x96, 0xD5, 0xA0, 0x5B, 0xC8, 0xD6, 0x1C, 0xA8, 0xDB, 0xEF, 0x1B, 0x13, 0xA4, 0xB4, 0xAB, 0xFE, 0x4F, 0xB1, 0x00, 0x60, 0x45, 0xB6, 0x74, 0xBB, 0x54, 0x72,
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43 0x93, 0x04, 0xC3, 0x82, 0xBE, 0x53, 0xA5, 0xAF, 0x05, 0x55, 0x61, 0x76, 0xF6, 0xEA, 0xA2, 0xEF, 0x1D, 0x05, 0xE4, 0xB0, 0x83, 0x18, 0x1E, 0xE6, 0x74, 0xCD, 0xA5, 0xA4, 0x85, 0xF7, 0x4D, 0x7A,
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44 0x40|0x80 },
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45 { 0x95, 0xAE, 0x41, 0xBA },
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46 }
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47 };
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48 unsigned char T[16];
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49 unsigned long taglen;
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50 int err, x, idx;
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51
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52 /* find kasumi */
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53 if ((idx = find_cipher("kasumi")) == -1) {
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54 return CRYPT_NOP;
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55 }
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56
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57 for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {
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58 taglen = 4;
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59 if ((err = f9_memory(idx, tests[x].K, 16, tests[x].M, tests[x].msglen, T, &taglen)) != CRYPT_OK) {
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60 return err;
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61 }
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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62 if (compare_testvector(T, taglen, tests[x].T, 4, "F9", x)) {
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63 return CRYPT_FAIL_TESTVECTOR;
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64 }
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65 }
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66
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67 return CRYPT_OK;
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68 #endif
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69 }
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70
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71 #endif
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72
1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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73 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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74 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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75 /* commit time: $Format:%ai$ */
382
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76