diff options
Diffstat (limited to 'crypto/openssl/apps/srp.c')
| -rw-r--r-- | crypto/openssl/apps/srp.c | 756 |
1 files changed, 756 insertions, 0 deletions
diff --git a/crypto/openssl/apps/srp.c b/crypto/openssl/apps/srp.c new file mode 100644 index 0000000..9c7ae18 --- /dev/null +++ b/crypto/openssl/apps/srp.c @@ -0,0 +1,756 @@ +/* apps/srp.c */ +/* Written by Peter Sylvester (peter.sylvester@edelweb.fr) + * for the EdelKey project and contributed to the OpenSSL project 2004. + */ +/* ==================================================================== + * Copyright (c) 2004 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +#include <openssl/opensslconf.h> + +#ifndef OPENSSL_NO_SRP +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <openssl/conf.h> +#include <openssl/bio.h> +#include <openssl/err.h> +#include <openssl/txt_db.h> +#include <openssl/buffer.h> +#include <openssl/srp.h> + +#include "apps.h" + +#undef PROG +#define PROG srp_main + +#define BASE_SECTION "srp" +#define CONFIG_FILE "openssl.cnf" + +#define ENV_RANDFILE "RANDFILE" + +#define ENV_DATABASE "srpvfile" +#define ENV_DEFAULT_SRP "default_srp" + +static char *srp_usage[]={ +"usage: srp [args] [user] \n", +"\n", +" -verbose Talk alot while doing things\n", +" -config file A config file\n", +" -name arg The particular srp definition to use\n", +" -srpvfile arg The srp verifier file name\n", +" -add add an user and srp verifier\n", +" -modify modify the srp verifier of an existing user\n", +" -delete delete user from verifier file\n", +" -list list user\n", +" -gn arg g and N values to be used for new verifier\n", +" -userinfo arg additional info to be set for user\n", +" -passin arg input file pass phrase source\n", +" -passout arg output file pass phrase source\n", +#ifndef OPENSSL_NO_ENGINE +" -engine e - use engine e, possibly a hardware device.\n", +#endif +NULL +}; + +#ifdef EFENCE +extern int EF_PROTECT_FREE; +extern int EF_PROTECT_BELOW; +extern int EF_ALIGNMENT; +#endif + +static CONF *conf=NULL; +static char *section=NULL; + +#define VERBOSE if (verbose) +#define VVERBOSE if (verbose>1) + + +int MAIN(int, char **); + +static int get_index(CA_DB *db, char* id, char type) + { + char ** pp; + int i; + if (id == NULL) return -1; + if (type == DB_SRP_INDEX) + for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) + { + pp = sk_OPENSSL_PSTRING_value(db->db->data,i); + if (pp[DB_srptype][0] == DB_SRP_INDEX && !strcmp(id,pp[DB_srpid])) + return i; + } + else for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) + { + pp = sk_OPENSSL_PSTRING_value(db->db->data,i); + + if (pp[DB_srptype][0] != DB_SRP_INDEX && !strcmp(id,pp[DB_srpid])) + return i; + } + + return -1 ; + } + +static void print_entry(CA_DB *db, BIO *bio, int indx, int verbose, char *s) + { + if (indx >= 0 && verbose) + { + int j; + char **pp = sk_OPENSSL_PSTRING_value(db->db->data, indx); + BIO_printf(bio, "%s \"%s\"\n", s, pp[DB_srpid]); + for (j = 0; j < DB_NUMBER; j++) + { + BIO_printf(bio_err," %d = \"%s\"\n", j, pp[j]); + } + } + } + +static void print_index(CA_DB *db, BIO *bio, int indexindex, int verbose) + { + print_entry(db, bio, indexindex, verbose, "g N entry") ; + } + +static void print_user(CA_DB *db, BIO *bio, int userindex, int verbose) + { + if (verbose > 0) + { + char **pp = sk_OPENSSL_PSTRING_value(db->db->data,userindex); + + if (pp[DB_srptype][0] != 'I') + { + print_entry(db, bio, userindex, verbose, "User entry"); + print_entry(db, bio, get_index(db, pp[DB_srpgN], 'I'), verbose, "g N entry"); + } + + } + } + +static int update_index(CA_DB *db, BIO *bio, char **row) + { + char ** irow; + int i; + + if ((irow=(char **)OPENSSL_malloc(sizeof(char *)*(DB_NUMBER+1))) == NULL) + { + BIO_printf(bio_err,"Memory allocation failure\n"); + return 0; + } + + for (i=0; i<DB_NUMBER; i++) + { + irow[i]=row[i]; + row[i]=NULL; + } + irow[DB_NUMBER]=NULL; + + if (!TXT_DB_insert(db->db,irow)) + { + BIO_printf(bio,"failed to update srpvfile\n"); + BIO_printf(bio,"TXT_DB error number %ld\n",db->db->error); + OPENSSL_free(irow); + return 0; + } + return 1; + } + +static void lookup_fail(const char *name, char *tag) + { + BIO_printf(bio_err,"variable lookup failed for %s::%s\n",name,tag); + } + + +static char *srp_verify_user(const char *user, const char *srp_verifier, + char *srp_usersalt, const char *g, const char *N, + const char *passin, BIO *bio, int verbose) + { + char password[1024]; + PW_CB_DATA cb_tmp; + char *verifier = NULL; + char *gNid = NULL; + + cb_tmp.prompt_info = user; + cb_tmp.password = passin; + + if (password_callback(password, 1024, 0, &cb_tmp) >0) + { + VERBOSE BIO_printf(bio,"Validating\n user=\"%s\"\n srp_verifier=\"%s\"\n srp_usersalt=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,srp_verifier,srp_usersalt, g, N); + BIO_printf(bio, "Pass %s\n", password); + + if (!(gNid=SRP_create_verifier(user, password, &srp_usersalt, &verifier, N, g))) + { + BIO_printf(bio, "Internal error validating SRP verifier\n"); + } + else + { + if (strcmp(verifier, srp_verifier)) + gNid = NULL; + OPENSSL_free(verifier); + } + } + return gNid; + } + +static char *srp_create_user(char *user, char **srp_verifier, + char **srp_usersalt, char *g, char *N, + char *passout, BIO *bio, int verbose) + { + char password[1024]; + PW_CB_DATA cb_tmp; + char *gNid = NULL; + char *salt = NULL; + cb_tmp.prompt_info = user; + cb_tmp.password = passout; + + if (password_callback(password,1024,1,&cb_tmp) >0) + { + VERBOSE BIO_printf(bio,"Creating\n user=\"%s\"\n g=\"%s\"\n N=\"%s\"\n",user,g,N); + if (!(gNid =SRP_create_verifier(user, password, &salt, srp_verifier, N, g))) + { + BIO_printf(bio,"Internal error creating SRP verifier\n"); + } + else + *srp_usersalt = salt; + VVERBOSE BIO_printf(bio,"gNid=%s salt =\"%s\"\n verifier =\"%s\"\n", gNid,salt, *srp_verifier); + + } + return gNid; + } + +int MAIN(int argc, char **argv) + { + int add_user = 0; + int list_user= 0; + int delete_user= 0; + int modify_user= 0; + char * user = NULL; + + char *passargin = NULL, *passargout = NULL; + char *passin = NULL, *passout = NULL; + char * gN = NULL; + int gNindex = -1; + char ** gNrow = NULL; + int maxgN = -1; + + char * userinfo = NULL; + + int badops=0; + int ret=1; + int errors=0; + int verbose=0; + int doupdatedb=0; + char *configfile=NULL; + char *dbfile=NULL; + CA_DB *db=NULL; + char **pp ; + int i; + long errorline = -1; + char *randfile=NULL; +#ifndef OPENSSL_NO_ENGINE + char *engine = NULL; +#endif + char *tofree=NULL; + DB_ATTR db_attr; + +#ifdef EFENCE +EF_PROTECT_FREE=1; +EF_PROTECT_BELOW=1; +EF_ALIGNMENT=0; +#endif + + apps_startup(); + + conf = NULL; + section = NULL; + + if (bio_err == NULL) + if ((bio_err=BIO_new(BIO_s_file())) != NULL) + BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); + + argc--; + argv++; + while (argc >= 1 && badops == 0) + { + if (strcmp(*argv,"-verbose") == 0) + verbose++; + else if (strcmp(*argv,"-config") == 0) + { + if (--argc < 1) goto bad; + configfile= *(++argv); + } + else if (strcmp(*argv,"-name") == 0) + { + if (--argc < 1) goto bad; + section= *(++argv); + } + else if (strcmp(*argv,"-srpvfile") == 0) + { + if (--argc < 1) goto bad; + dbfile= *(++argv); + } + else if (strcmp(*argv,"-add") == 0) + add_user=1; + else if (strcmp(*argv,"-delete") == 0) + delete_user=1; + else if (strcmp(*argv,"-modify") == 0) + modify_user=1; + else if (strcmp(*argv,"-list") == 0) + list_user=1; + else if (strcmp(*argv,"-gn") == 0) + { + if (--argc < 1) goto bad; + gN= *(++argv); + } + else if (strcmp(*argv,"-userinfo") == 0) + { + if (--argc < 1) goto bad; + userinfo= *(++argv); + } + else if (strcmp(*argv,"-passin") == 0) + { + if (--argc < 1) goto bad; + passargin= *(++argv); + } + else if (strcmp(*argv,"-passout") == 0) + { + if (--argc < 1) goto bad; + passargout= *(++argv); + } +#ifndef OPENSSL_NO_ENGINE + else if (strcmp(*argv,"-engine") == 0) + { + if (--argc < 1) goto bad; + engine= *(++argv); + } +#endif + + else if (**argv == '-') + { +bad: + BIO_printf(bio_err,"unknown option %s\n",*argv); + badops=1; + break; + } + else + break; + + argc--; + argv++; + } + + if (dbfile && configfile) + { + BIO_printf(bio_err,"-dbfile and -configfile cannot be specified together.\n"); + badops = 1; + } + if (add_user+delete_user+modify_user+list_user != 1) + { + BIO_printf(bio_err,"Exactly one of the options -add, -delete, -modify -list must be specified.\n"); + badops = 1; + } + if (delete_user+modify_user+delete_user== 1 && argc <= 0) + { + BIO_printf(bio_err,"Need at least one user for options -add, -delete, -modify. \n"); + badops = 1; + } + if ((passin || passout) && argc != 1 ) + { + BIO_printf(bio_err,"-passin, -passout arguments only valid with one user.\n"); + badops = 1; + } + + if (badops) + { + for (pp=srp_usage; (*pp != NULL); pp++) + BIO_printf(bio_err,"%s",*pp); + + BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); + BIO_printf(bio_err," load the file (or the files in the directory) into\n"); + BIO_printf(bio_err," the random number generator\n"); + goto err; + } + + ERR_load_crypto_strings(); + +#ifndef OPENSSL_NO_ENGINE + setup_engine(bio_err, engine, 0); +#endif + + if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) + { + BIO_printf(bio_err, "Error getting passwords\n"); + goto err; + } + + if (!dbfile) + { + + + /*****************************************************************/ + tofree=NULL; + if (configfile == NULL) configfile = getenv("OPENSSL_CONF"); + if (configfile == NULL) configfile = getenv("SSLEAY_CONF"); + if (configfile == NULL) + { + const char *s=X509_get_default_cert_area(); + size_t len; + +#ifdef OPENSSL_SYS_VMS + len = strlen(s)+sizeof(CONFIG_FILE); + tofree=OPENSSL_malloc(len); + strcpy(tofree,s); +#else + len = strlen(s)+sizeof(CONFIG_FILE)+1; + tofree=OPENSSL_malloc(len); + BUF_strlcpy(tofree,s,len); + BUF_strlcat(tofree,"/",len); +#endif + BUF_strlcat(tofree,CONFIG_FILE,len); + configfile=tofree; + } + + VERBOSE BIO_printf(bio_err,"Using configuration from %s\n",configfile); + conf = NCONF_new(NULL); + if (NCONF_load(conf,configfile,&errorline) <= 0) + { + if (errorline <= 0) + BIO_printf(bio_err,"error loading the config file '%s'\n", + configfile); + else + BIO_printf(bio_err,"error on line %ld of config file '%s'\n" + ,errorline,configfile); + goto err; + } + if(tofree) + { + OPENSSL_free(tofree); + tofree = NULL; + } + + if (!load_config(bio_err, conf)) + goto err; + + /* Lets get the config section we are using */ + if (section == NULL) + { + VERBOSE BIO_printf(bio_err,"trying to read " ENV_DEFAULT_SRP " in \" BASE_SECTION \"\n"); + + section=NCONF_get_string(conf,BASE_SECTION,ENV_DEFAULT_SRP); + if (section == NULL) + { + lookup_fail(BASE_SECTION,ENV_DEFAULT_SRP); + goto err; + } + } + + if (randfile == NULL && conf) + randfile = NCONF_get_string(conf, BASE_SECTION, "RANDFILE"); + + + VERBOSE BIO_printf(bio_err,"trying to read " ENV_DATABASE " in section \"%s\"\n",section); + + if ((dbfile=NCONF_get_string(conf,section,ENV_DATABASE)) == NULL) + { + lookup_fail(section,ENV_DATABASE); + goto err; + } + + } + if (randfile == NULL) + ERR_clear_error(); + else + app_RAND_load_file(randfile, bio_err, 0); + + VERBOSE BIO_printf(bio_err,"Trying to read SRP verifier file \"%s\"\n",dbfile); + + db = load_index(dbfile, &db_attr); + if (db == NULL) goto err; + + /* Lets check some fields */ + for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) + { + pp = sk_OPENSSL_PSTRING_value(db->db->data, i); + + if (pp[DB_srptype][0] == DB_SRP_INDEX) + { + maxgN = i; + if (gNindex < 0 && gN != NULL && !strcmp(gN, pp[DB_srpid])) + gNindex = i; + + print_index(db, bio_err, i, verbose > 1); + } + } + + VERBOSE BIO_printf(bio_err, "Database initialised\n"); + + if (gNindex >= 0) + { + gNrow = sk_OPENSSL_PSTRING_value(db->db->data,gNindex); + print_entry(db, bio_err, gNindex, verbose > 1, "Default g and N"); + } + else if (maxgN > 0 && !SRP_get_default_gN(gN)) + { + BIO_printf(bio_err, "No g and N value for index \"%s\"\n", gN); + goto err; + } + else + { + VERBOSE BIO_printf(bio_err, "Database has no g N information.\n"); + gNrow = NULL; + } + + + VVERBOSE BIO_printf(bio_err,"Starting user processing\n"); + + if (argc > 0) + user = *(argv++) ; + + while (list_user || user) + { + int userindex = -1; + if (user) + VVERBOSE BIO_printf(bio_err, "Processing user \"%s\"\n", user); + if ((userindex = get_index(db, user, 'U')) >= 0) + { + print_user(db, bio_err, userindex, (verbose > 0) || list_user); + } + + if (list_user) + { + if (user == NULL) + { + BIO_printf(bio_err,"List all users\n"); + + for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) + { + print_user(db,bio_err, i, 1); + } + list_user = 0; + } + else if (userindex < 0) + { + BIO_printf(bio_err, "user \"%s\" does not exist, ignored. t\n", + user); + errors++; + } + } + else if (add_user) + { + if (userindex >= 0) + { + /* reactivation of a new user */ + char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex); + BIO_printf(bio_err, "user \"%s\" reactivated.\n", user); + row[DB_srptype][0] = 'V'; + + doupdatedb = 1; + } + else + { + char *row[DB_NUMBER] ; char *gNid; + row[DB_srpverifier] = NULL; + row[DB_srpsalt] = NULL; + row[DB_srpinfo] = NULL; + if (!(gNid = srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:gN,gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose))) + { + BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned .\n", user); + errors++; + goto err; + } + row[DB_srpid] = BUF_strdup(user); + row[DB_srptype] = BUF_strdup("v"); + row[DB_srpgN] = BUF_strdup(gNid); + + if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] || + (userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo)))) || + !update_index(db, bio_err, row)) + { + if (row[DB_srpid]) OPENSSL_free(row[DB_srpid]); + if (row[DB_srpgN]) OPENSSL_free(row[DB_srpgN]); + if (row[DB_srpinfo]) OPENSSL_free(row[DB_srpinfo]); + if (row[DB_srptype]) OPENSSL_free(row[DB_srptype]); + if (row[DB_srpverifier]) OPENSSL_free(row[DB_srpverifier]); + if (row[DB_srpsalt]) OPENSSL_free(row[DB_srpsalt]); + goto err; + } + doupdatedb = 1; + } + } + else if (modify_user) + { + if (userindex < 0) + { + BIO_printf(bio_err,"user \"%s\" does not exist, operation ignored.\n",user); + errors++; + } + else + { + + char **row = sk_OPENSSL_PSTRING_value(db->db->data, userindex); + char type = row[DB_srptype][0]; + if (type == 'v') + { + BIO_printf(bio_err,"user \"%s\" already updated, operation ignored.\n",user); + errors++; + } + else + { + char *gNid; + + if (row[DB_srptype][0] == 'V') + { + int user_gN; + char **irow = NULL; + VERBOSE BIO_printf(bio_err,"Verifying password for user \"%s\"\n",user); + if ( (user_gN = get_index(db, row[DB_srpgN], DB_SRP_INDEX)) >= 0) + irow = (char **)sk_OPENSSL_PSTRING_value(db->db->data, userindex); + + if (!srp_verify_user(user, row[DB_srpverifier], row[DB_srpsalt], irow ? irow[DB_srpsalt] : row[DB_srpgN], irow ? irow[DB_srpverifier] : NULL, passin, bio_err, verbose)) + { + BIO_printf(bio_err, "Invalid password for user \"%s\", operation abandoned.\n", user); + errors++; + goto err; + } + } + VERBOSE BIO_printf(bio_err,"Password for user \"%s\" ok.\n",user); + + if (!(gNid=srp_create_user(user,&(row[DB_srpverifier]), &(row[DB_srpsalt]),gNrow?gNrow[DB_srpsalt]:NULL, gNrow?gNrow[DB_srpverifier]:NULL, passout, bio_err,verbose))) + { + BIO_printf(bio_err, "Cannot create srp verifier for user \"%s\", operation abandoned.\n", user); + errors++; + goto err; + } + + row[DB_srptype][0] = 'v'; + row[DB_srpgN] = BUF_strdup(gNid); + + if (!row[DB_srpid] || !row[DB_srpgN] || !row[DB_srptype] || !row[DB_srpverifier] || !row[DB_srpsalt] || + (userinfo && (!(row[DB_srpinfo] = BUF_strdup(userinfo))))) + goto err; + + doupdatedb = 1; + } + } + } + else if (delete_user) + { + if (userindex < 0) + { + BIO_printf(bio_err, "user \"%s\" does not exist, operation ignored. t\n", user); + errors++; + } + else + { + char **xpp = sk_OPENSSL_PSTRING_value(db->db->data,userindex); + BIO_printf(bio_err, "user \"%s\" revoked. t\n", user); + + xpp[DB_srptype][0] = 'R'; + + doupdatedb = 1; + } + } + if (--argc > 0) + user = *(argv++) ; + else + { + user = NULL; + list_user = 0; + } + } + + VERBOSE BIO_printf(bio_err,"User procession done.\n"); + + + if (doupdatedb) + { + /* Lets check some fields */ + for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) + { + pp = sk_OPENSSL_PSTRING_value(db->db->data,i); + + if (pp[DB_srptype][0] == 'v') + { + pp[DB_srptype][0] = 'V'; + print_user(db, bio_err, i, verbose); + } + } + + VERBOSE BIO_printf(bio_err, "Trying to update srpvfile.\n"); + if (!save_index(dbfile, "new", db)) goto err; + + VERBOSE BIO_printf(bio_err, "Temporary srpvfile created.\n"); + if (!rotate_index(dbfile, "new", "old")) goto err; + + VERBOSE BIO_printf(bio_err, "srpvfile updated.\n"); + } + + ret = (errors != 0); +err: + if (errors != 0) + VERBOSE BIO_printf(bio_err,"User errors %d.\n",errors); + + VERBOSE BIO_printf(bio_err,"SRP terminating with code %d.\n",ret); + if(tofree) + OPENSSL_free(tofree); + if (ret) ERR_print_errors(bio_err); + if (randfile) app_RAND_write_file(randfile, bio_err); + if (conf) NCONF_free(conf); + if (db) free_index(db); + + OBJ_cleanup(); + apps_shutdown(); + OPENSSL_EXIT(ret); + } + + + +#endif + |
