Mercurial > dropbear
view libtomcrypt/src/misc/pkcs5/pkcs_5_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> |
---|---|
date | Mon, 09 Jul 2018 16:27:53 +0200 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file hkdf_test.c PKCS #5 support, self-test, Steffen Jaeckel */ #ifdef LTC_PKCS_5 /* TEST CASES SOURCE: Internet Engineering Task Force (IETF) S. Josefsson Request for Comments: 6070 SJD AB Category: Informational January 2011 ISSN: 2070-1721 */ /** PKCS #5 self-test @return CRYPT_OK if successful, CRYPT_NOP if tests have been disabled. */ int pkcs_5_test (void) { #ifndef LTC_TEST return CRYPT_NOP; #else typedef struct { const char* P; unsigned long P_len; const char* S; unsigned long S_len; int c; unsigned long dkLen; unsigned char DK[40]; } case_item; static const case_item cases_5_2[] = { { "password", 8, "salt", 4, 1, 20, { 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71, 0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06, 0x2f, 0xe0, 0x37, 0xa6 } }, { "password", 8, "salt", 4, 2, 20, { 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c, 0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0, 0xd8, 0xde, 0x89, 0x57 } }, #ifdef LTC_TEST_EXT { "password", 8, "salt", 4, 4096, 20, { 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a, 0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0, 0x65, 0xa4, 0x29, 0xc1 } }, { "password", 8, "salt", 4, 16777216, 20, { 0xee, 0xfe, 0x3d, 0x61, 0xcd, 0x4d, 0xa4, 0xe4, 0xe9, 0x94, 0x5b, 0x3d, 0x6b, 0xa2, 0x15, 0x8c, 0x26, 0x34, 0xe9, 0x84 } }, { "passwordPASSWORDpassword", 25, "saltSALTsaltSALTsaltSALTsaltSALTsalt", 36, 4096, 25, { 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b, 0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a, 0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70, 0x38 } }, { "pass\0word", 9, "sa\0lt", 5, 4096, 16, { 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d, 0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 } }, #endif /* LTC_TEST_EXT */ }; static const case_item cases_5_1[] = { { "password", 8, "saltsalt", /* must be 8 octects */ 8, /* ignored by alg1 */ 1, 20, { 0xca, 0xb8, 0x6d, 0xd6, 0x26, 0x17, 0x10, 0x89, 0x1e, 0x8c, 0xb5, 0x6e, 0xe3, 0x62, 0x56, 0x91, 0xa7, 0x5d, 0xf3, 0x44 } }, }; static const case_item cases_5_1o[] = { { "password", 8, "saltsalt", /* must be 8 octects */ 8, /* ignored by alg1_openssl */ 1, 20, { 0xca, 0xb8, 0x6d, 0xd6, 0x26, 0x17, 0x10, 0x89, 0x1e, 0x8c, 0xb5, 0x6e, 0xe3, 0x62, 0x56, 0x91, 0xa7, 0x5d, 0xf3, 0x44 } }, { "password", 8, "saltsalt", /* must be 8 octects */ 8, /* ignored by alg1_openssl */ 1, 30, { 0xca, 0xb8, 0x6d, 0xd6, 0x26, 0x17, 0x10, 0x89, 0x1e, 0x8c, 0xb5, 0x6e, 0xe3, 0x62, 0x56, 0x91, 0xa7, 0x5d, 0xf3, 0x44, 0xf0, 0xbf, 0xf4, 0xc1, 0x2c, 0xf3, 0x59, 0x6f, 0xc0, 0x0b } } }; unsigned char DK[40]; unsigned long dkLen; int i, err; int tested=0, failed=0; int hash = find_hash("sha1"); if (hash == -1) { #ifdef LTC_TEST_DBG printf("PKCS#5 test failed: 'sha1' hash not found\n"); #endif return CRYPT_ERROR; } /* testing alg 2 */ for(i=0; i < (int)(sizeof(cases_5_2) / sizeof(cases_5_2[0])); i++) { ++tested; dkLen = cases_5_2[i].dkLen; if((err = pkcs_5_alg2((unsigned char*)cases_5_2[i].P, cases_5_2[i].P_len, (unsigned char*)cases_5_2[i].S, cases_5_2[i].S_len, cases_5_2[i].c, hash, DK, &dkLen)) != CRYPT_OK) { #ifdef LTC_TEST_DBG printf("\npkcs_5_alg2() #%d: Failed/1 (%s)\n", i, error_to_string(err)); #endif ++failed; } else if (compare_testvector(DK, dkLen, cases_5_2[i].DK, cases_5_2[i].dkLen, "PKCS#5_2", i)) { ++failed; } } /* testing alg 1 */ for(i=0; i < (int)(sizeof(cases_5_1) / sizeof(case_item)); i++, tested++) { dkLen = cases_5_1[i].dkLen; if((err = pkcs_5_alg1((unsigned char*)cases_5_1[i].P, cases_5_1[i].P_len, (unsigned char*)cases_5_1[i].S, cases_5_1[i].c, hash, DK, &dkLen)) != CRYPT_OK) { #ifdef LTC_TEST_DBG printf("\npkcs_5_alg1() #%d: Failed/1 (%s)\n", i, error_to_string(err)); #endif ++failed; } else if (compare_testvector(DK, dkLen, cases_5_1[i].DK, cases_5_1[i].dkLen, "PKCS#5_1", i)) { ++failed; } } /* testing alg 1_openssl */ for(i = 0; i < (int)(sizeof(cases_5_1o) / sizeof(cases_5_1o[0])); i++, tested++) { dkLen = cases_5_1o[i].dkLen; if ((err = pkcs_5_alg1_openssl((unsigned char*)cases_5_1o[i].P, cases_5_1o[i].P_len, (unsigned char*)cases_5_1o[i].S, cases_5_1o[i].c, hash, DK, &dkLen)) != CRYPT_OK) { #ifdef LTC_TEST_DBG printf("\npkcs_5_alg1_openssl() #%d: Failed/1 (%s)\n", i, error_to_string(err)); #endif ++failed; } else if (compare_testvector(DK, dkLen, cases_5_1o[i].DK, cases_5_1o[i].dkLen, "PKCS#5_1o", i)) { ++failed; } } return (failed != 0) ? CRYPT_FAIL_TESTVECTOR : CRYPT_OK; #endif } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */