diff options
Diffstat (limited to 'openssl/crypto/srp/srptest.c')
| -rw-r--r-- | openssl/crypto/srp/srptest.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/openssl/crypto/srp/srptest.c b/openssl/crypto/srp/srptest.c new file mode 100644 index 000000000..04b66b454 --- /dev/null +++ b/openssl/crypto/srp/srptest.c @@ -0,0 +1,162 @@ +#include <openssl/opensslconf.h> +#ifdef OPENSSL_NO_SRP + +#include <stdio.h> + +int main(int argc, char *argv[]) + { + printf("No SRP support\n"); + return(0); + } + +#else + +#include <openssl/srp.h> +#include <openssl/rand.h> +#include <openssl/err.h> + +static void showbn(const char *name, const BIGNUM *bn) + { + fputs(name, stdout); + fputs(" = ", stdout); + BN_print_fp(stdout, bn); + putc('\n', stdout); + } + +#define RANDOM_SIZE 32 /* use 256 bits on each side */ + +static int run_srp(const char *username, const char *client_pass, const char *server_pass) + { + int ret=-1; + BIGNUM *s = NULL; + BIGNUM *v = NULL; + BIGNUM *a = NULL; + BIGNUM *b = NULL; + BIGNUM *u = NULL; + BIGNUM *x = NULL; + BIGNUM *Apub = NULL; + BIGNUM *Bpub = NULL; + BIGNUM *Kclient = NULL; + BIGNUM *Kserver = NULL; + unsigned char rand_tmp[RANDOM_SIZE]; + /* use builtin 1024-bit params */ + SRP_gN *GN = SRP_get_default_gN("1024"); + + if(GN == NULL) + { + fprintf(stderr, "Failed to get SRP parameters\n"); + return -1; + } + /* Set up server's password entry */ + if(!SRP_create_verifier_BN(username, server_pass, &s, &v, GN->N, GN->g)) + { + fprintf(stderr, "Failed to create SRP verifier\n"); + return -1; + } + + showbn("N", GN->N); + showbn("g", GN->g); + showbn("Salt", s); + showbn("Verifier", v); + + /* Server random */ + RAND_pseudo_bytes(rand_tmp, sizeof(rand_tmp)); + b = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL); + /* TODO - check b != 0 */ + showbn("b", b); + + /* Server's first message */ + Bpub = SRP_Calc_B(b, GN->N, GN->g, v); + showbn("B", Bpub); + + if(!SRP_Verify_B_mod_N(Bpub, GN->N)) + { + fprintf(stderr, "Invalid B\n"); + return -1; + } + + /* Client random */ + RAND_pseudo_bytes(rand_tmp, sizeof(rand_tmp)); + a = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL); + /* TODO - check a != 0 */ + showbn("a", a); + + /* Client's response */ + Apub = SRP_Calc_A(a, GN->N, GN->g); + showbn("A", Apub); + + if(!SRP_Verify_A_mod_N(Apub, GN->N)) + { + fprintf(stderr, "Invalid A\n"); + return -1; + } + + /* Both sides calculate u */ + u = SRP_Calc_u(Apub, Bpub, GN->N); + + /* Client's key */ + x = SRP_Calc_x(s, username, client_pass); + Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u); + showbn("Client's key", Kclient); + + /* Server's key */ + Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N); + showbn("Server's key", Kserver); + + if(BN_cmp(Kclient, Kserver) == 0) + { + ret = 0; + } + else + { + fprintf(stderr, "Keys mismatch\n"); + ret = 1; + } + + BN_clear_free(Kclient); + BN_clear_free(Kserver); + BN_clear_free(x); + BN_free(u); + BN_free(Apub); + BN_clear_free(a); + BN_free(Bpub); + BN_clear_free(b); + BN_free(s); + BN_clear_free(v); + + return ret; + } + +int main(int argc, char **argv) + { + BIO *bio_err; + bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); + + CRYPTO_malloc_debug_init(); + CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL); + CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); + + ERR_load_crypto_strings(); + + /* "Negative" test, expect a mismatch */ + if(run_srp("alice", "password1", "password2") == 0) + { + fprintf(stderr, "Mismatched SRP run failed\n"); + return 1; + } + + /* "Positive" test, should pass */ + if(run_srp("alice", "password", "password") != 0) + { + fprintf(stderr, "Plain SRP run failed\n"); + return 1; + } + + CRYPTO_cleanup_all_ex_data(); + ERR_remove_thread_state(NULL); + ERR_free_strings(); + CRYPTO_mem_leaks(bio_err); + + return 0; + } +#endif |