AutoGen Definitions options; prog-name = srptool; prog-title = "GnuTLS SRP tool"; prog-desc = "Simple program to create SRP parameters.\n"; explain = ""; detail = "Simple program that emulates the programs in the Stanford SRP (Secure Remote Password) libraries using GnuTLS. It is intended for use in places where you don't expect SRP authentication to be the used for system users. In brief, to use SRP you need to create two files. These are the password file that holds the users and the verifiers associated with them and the configuration file to hold the group parameters (called tpasswd.conf)."; short-usage = "srptool [options]\nsrptool --help for usage instructions.\n"; #include args-std.def flag = { name = index; value = i; arg-type = number; arg-default = 3; descrip = "specify the index of the group parameters in tpasswd.conf to use"; doc = ""; }; flag = { name = username; value = u; arg-type = string; descrip = "specify a username"; doc = ""; }; flag = { name = passwd; value = p; arg-type = string; descrip = "specify a password file"; doc = ""; }; flag = { name = salt; value = s; arg-type = number; descrip = "specify salt size"; doc = ""; }; flag = { name = verify; descrip = "just verify the password."; doc = "Verifies the password provided against the password file."; }; flag = { name = passwd-conf; value = v; arg-type = string; descrip = "specify a password conf file."; doc = "Specify a filename or a PKCS #11 URL to read the CAs from."; }; flag = { name = create-conf; arg-type = string; descrip = "Generate a password configuration file."; doc = "This generates a password configuration file (tpasswd.conf) containing the required for TLS parameters."; }; doc-section = { ds-type = 'SEE ALSO'; ds-format = 'texi'; ds-text = <<-_EOT_ gnutls-cli-debug (1), gnutls-serv (1), srptool (1), psktool (1), certtool (1) _EOT_; }; doc-section = { ds-type = 'EXAMPLES'; ds-format = 'texi'; ds-text = <<-_EOT_ To create @file{tpasswd.conf} which holds the g and n values for SRP protocol (generator and a large prime), run: @example $ srptool --create-conf /etc/tpasswd.conf @end example This command will create @file{/etc/tpasswd} and will add user 'test' (you will also be prompted for a password). Verifiers are stored by default in the way libsrp expects. @example $ srptool --passwd /etc/tpasswd --passwd-conf /etc/tpasswd.conf -u test @end example This command will check against a password. If the password matches the one in @file{/etc/tpasswd} you will get an ok. @example $ srptool --passwd /etc/tpasswd --passwd\-conf /etc/tpasswd.conf --verify -u test @end example _EOT_; };