Mercurial > dropbear
view libtomcrypt/demos/constants.c @ 1653:76189c9ffea2
External Public-Key Authentication API (#72)
* Implemented dynamic loading of an external plug-in shared library to delegate public key authentication
* Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled
* Added tags file to the ignore list
* Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them
* Added -rdynamic to the linker flags when EPKA is enabled
* Changed the API to pass a previously created session to the checkPubKey function (created during preauth)
* Added documentation to the API
* Added parameter addrstring to plugin creation function
* Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session)
* Changed option string to be a simple char * instead of unsigned char *
author | fabriziobertocci <fabriziobertocci@gmail.com> |
---|---|
date | Wed, 15 May 2019 09:43:57 -0400 |
parents | 6dba84798cd5 |
children | e9dba7abd939 |
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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" #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L #include <libgen.h> #else #define basename(x) x #endif /** @file demo_crypt_constants.c Demo how to get various constants to dynamic languages like Python Larry Bugbee, February 2013 */ static void _print_line(const char* cmd, const char* desc) { printf(" %-16s - %s\n", cmd, desc); } int main(int argc, char **argv) { if (argc == 1) { /* given a specific constant name, get and print its value */ char name[] = "CTR_COUNTER_BIG_ENDIAN"; int value; char *names_list; unsigned int names_list_len; if (crypt_get_constant(name, &value) != 0) exit(EXIT_FAILURE); printf("\n %s is %d \n\n", name, value); /* get and print the length of the names (and values) list */ if (crypt_list_all_constants(NULL, &names_list_len) != 0) exit(EXIT_FAILURE); printf(" need to allocate %u bytes \n\n", names_list_len); /* get and print the names (and values) list */ if ((names_list = malloc(names_list_len)) == NULL) exit(EXIT_FAILURE); if (crypt_list_all_constants(names_list, &names_list_len) != 0) exit(EXIT_FAILURE); printf(" supported constants:\n\n%s\n\n", names_list); free(names_list); } else if (argc == 2) { if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0) { char* base = strdup(basename(argv[0])); printf("Usage: %s [-a] [-s name]\n\n", base); _print_line("<no argument>", "The old behavior of the demo"); _print_line("-a", "Only lists all constants"); _print_line("-s name", "List a single constant given as argument"); _print_line("-h", "The help you're looking at"); free(base); } else if (strcmp(argv[1], "-a") == 0) { char *names_list; unsigned int names_list_len; /* get and print the length of the names (and values) list */ if (crypt_list_all_constants(NULL, &names_list_len) != 0) exit(EXIT_FAILURE); /* get and print the names (and values) list */ names_list = malloc(names_list_len); if (crypt_list_all_constants(names_list, &names_list_len) != 0) exit(EXIT_FAILURE); printf("%s\n", names_list); } } else if (argc == 3) { if (strcmp(argv[1], "-s") == 0) { int value; if (crypt_get_constant(argv[2], &value) != 0) exit(EXIT_FAILURE); printf("%s,%u\n", argv[2], value); } } return 0; } /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */