diff options
Diffstat (limited to 'src/io/cli.c')
| -rw-r--r-- | src/io/cli.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/io/cli.c b/src/io/cli.c index a525a78..ad3df9b 100644 --- a/src/io/cli.c +++ b/src/io/cli.c @@ -10,7 +10,7 @@ char cli_doc[] = "ecgen, tool for generating Elliptic curve domain parameters.\v(C) " - "2017-2018,2021 J08nY"; + "2017-2018,2021,2023 J08nY"; char cli_args_doc[] = "bits"; enum opt_keys { @@ -18,6 +18,7 @@ enum opt_keys { OPT_COUNT = 'c', OPT_PRIME = 'p', OPT_COFACTOR = 'k', + OPT_SMOOTH = 'B', OPT_RANDOM = 'r', OPT_ANSI = 's', OPT_BRAINPOOL = 'b', @@ -65,6 +66,7 @@ struct argp_option cli_options[] = { "Optionally, only generate random parameters WHAT (seed,field,a,b,equation).", 3}, {"prime", OPT_PRIME, 0, 0, "Generate a curve with prime order.", 3}, {"cofactor", OPT_COFACTOR, "VALUE", 0, "Generate a curve with cofactor of VALUE.", 3}, + {"smooth", OPT_SMOOTH, "BOUND", 0, "Generate a smooth order curve with bit-lengths of factors bounded by BOUND.", 3}, {"koblitz", OPT_KOBLITZ, "A", OPTION_ARG_OPTIONAL, "Generate a Koblitz curve (a in {0, 1}, b = 1).", 3}, {"unique", OPT_UNIQUE, 0, 0, "Generate a curve with only one generator.", 3}, {"hex-check", OPT_HEXCHECK, "HEX", 0, "Check a generated curve param hex expansion for the HEX string.", 3}, @@ -152,6 +154,10 @@ static void cli_end(struct argp_state *state) { "Specify field type, prime or binary, with --fp / " "--f2m (but not both)."); } + // Only one of prime, cofactor, smooth + if (cfg->prime + cfg->smooth + cfg->cofactor > 1) { + argp_failure(state, 1, 0, "Can only choose one of prime-order, cofactor value or smoothness bound."); + } // Only one gen method switch (cfg->method) { case METHOD_DEFAULT: @@ -307,6 +313,10 @@ error_t cli_parse(int key, char *arg, struct argp_state *state) { case OPT_PRIME: cfg->prime = true; break; + case OPT_SMOOTH: + cfg->smooth = true; + cfg->smooth_value = strtol(arg, NULL, 10); + break; case OPT_COFACTOR: cfg->cofactor = true; cfg->cofactor_value = strtol(arg, NULL, 10); |