view libtomcrypt/src/misc/pkcs5/pkcs_5_test.c @ 1715:3974f087d9c0

Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Mon, 15 Jun 2020 18:22:18 +0500
parents 6dba84798cd5
children
line wrap: on
line source

/* 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: $Format:%ai$ */