view libtomcrypt/tests/tomcrypt_test.h @ 1788:1fc0012b9c38

Fix handling of replies to global requests (#112) The current code assumes that all global requests want / need a reply. This isn't always true and the request itself indicates if it wants a reply or not. It causes a specific problem with [email protected] messages. These are sent by OpenSSH after authentication to inform the client of potential other host keys for the host. This can be used to add a new type of host key or to rotate host keys. The initial information message from the server is sent as a global request, but with want_reply set to false. This means that the server doesn't expect an answer to this message. Instead the client needs to send a prove request as a reply if it wants to receive proof of ownership for the host keys. The bug doesn't cause any current problems with due to how OpenSSH treats receiving the failure message. It instead treats it as a keepalive message and further ignores it. Arguably this is a protocol violation though of Dropbear and it is only accidental that it doesn't cause a problem with OpenSSH. The bug was found when adding host keys support to libssh, which is more strict protocol wise and treats the unexpected failure message an error, also see https://gitlab.com/libssh/libssh-mirror/-/merge_requests/145 for more information. The fix here is to honor the want_reply flag in the global request and to only send a reply if the other side expects a reply.
author Dirkjan Bussink <d.bussink@gmail.com>
date Thu, 10 Dec 2020 16:13:13 +0100
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.
 */

#ifndef __TEST_H_
#define __TEST_H_

#include <tomcrypt.h>

#include "common.h"

#ifdef USE_LTM
/* Use libtommath as MPI provider */
#define LTC_TEST_MPI
#elif defined(USE_TFM)
/* Use tomsfastmath as MPI provider */
#define LTC_TEST_MPI
#elif defined(USE_GMP)
/* Use GNU Multiple Precision Arithmetic Library as MPI provider */
#define LTC_TEST_MPI
#elif defined(EXT_MATH_LIB)
/* The user must define his own MPI provider! */
#define LTC_TEST_MPI
#endif

typedef struct {
    char *name, *prov, *req;
    int  (*entry)(void);
} test_entry;

/* TESTS */
int cipher_hash_test(void);
int modes_test(void);
int mac_test(void);
int pkcs_1_test(void);
int pkcs_1_pss_test(void);
int pkcs_1_oaep_test(void);
int pkcs_1_emsa_test(void);
int pkcs_1_eme_test(void);
int store_test(void);
int rotate_test(void);
int rsa_test(void);
int dh_test(void);
int katja_test(void);
int ecc_tests(void);
int dsa_test(void);
int der_test(void);
int misc_test(void);
int base64_test(void);
int file_test(void);
int multi_test(void);
int prng_test(void);
int mpi_test(void);

#ifdef LTC_PKCS_1
struct ltc_prng_descriptor* no_prng_desc_get(void);
void no_prng_desc_free(struct ltc_prng_descriptor*);
#endif

#endif

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/* commit time: $Format:%ai$ */