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-rw-r--r--src/io/cli.c105
1 files changed, 67 insertions, 38 deletions
diff --git a/src/io/cli.c b/src/io/cli.c
index 3c3dccd..702081b 100644
--- a/src/io/cli.c
+++ b/src/io/cli.c
@@ -6,6 +6,7 @@
#include <misc/config.h>
#include <string.h>
#include "exhaustive/ansi.h"
+#include "exhaustive/brainpool.h"
char cli_doc[] =
"ecgen, tool for generating Elliptic curve domain parameters.\v(C) 2017 "
@@ -19,6 +20,7 @@ enum opt_keys {
OPT_COFACTOR = 'k',
OPT_RANDOM = 'r',
OPT_ANSI = 's',
+ OPT_BRAINPOOL = 'b',
OPT_INVALID = 'i',
OPT_ORDER = 'n',
OPT_KOBLITZ = 'K',
@@ -38,47 +40,50 @@ enum opt_keys {
OPT_ANOMALOUS,
OPT_GPGEN,
OPT_GPCHECK,
- OPT_HEXCHECK
+ OPT_HEXCHECK,
+ OPT_BRAINPOOL_RFC
};
// clang-format off
struct argp_option cli_options[] = {
- {0, 0, 0, 0, "Field specification:", 1},
- {"fp", OPT_FP, 0, 0, "Prime field.", 1},
- {"f2m", OPT_F2M, 0, 0, "Binary field.", 1},
+ {0, 0, 0, 0, "Field specification:", 1},
+ {"fp", OPT_FP, 0, 0, "Prime field.", 1},
+ {"f2m", OPT_F2M, 0, 0, "Binary field.", 1},
- {0, 0, 0, 0, "Generation methods:", 2},
- {"order", OPT_ORDER, "ORDER", 0, "Generate a curve with given order (using Complex Multiplication). **NOT IMPLEMENTED**", 2},
- {"anomalous", OPT_ANOMALOUS, 0, 0, "Generate an anomalous curve (of trace one, with field order equal to curve order).", 2},
- {"ansi", OPT_ANSI, "SEED", OPTION_ARG_OPTIONAL, "Generate a curve from SEED (ANSI X9.62 verifiable procedure).", 2},
- {"invalid", OPT_INVALID, 0, 0, "Generate a set of invalid curves, for a given curve (using Invalid curve algorithm).", 2},
+ {0, 0, 0, 0, "Generation methods:", 2},
+ {"order", OPT_ORDER, "ORDER", 0, "Generate a curve with given order (using Complex Multiplication). **NOT IMPLEMENTED**", 2},
+ {"anomalous", OPT_ANOMALOUS, 0, 0, "Generate an anomalous curve (of trace one, with field order equal to curve order).", 2},
+ {"ansi", OPT_ANSI, "SEED", OPTION_ARG_OPTIONAL, "Generate a curve from SEED (ANSI X9.62 verifiable procedure).", 2},
+ {"brainpool", OPT_BRAINPOOL, "SEED", OPTION_ARG_OPTIONAL, "Generate a curve from SEED (Brainpool procedure).", 2},
+ {"brainpool-rfc", OPT_BRAINPOOL_RFC, "SEED", OPTION_ARG_OPTIONAL, "Generate a curve from SEED (Brainpool procedure, as per RFC 5639).", 2},
+ {"invalid", OPT_INVALID, 0, 0, "Generate a set of invalid curves, for a given curve (using Invalid curve algorithm).", 2},
- {0, 0, 0, 0, "Generation options:", 3},
- {"random", OPT_RANDOM, 0, 0, "Generate a random curve (using Random approach).", 3},
- {"prime", OPT_PRIME, 0, 0, "Generate a curve with prime order.", 3},
- {"cofactor", OPT_COFACTOR, "BOUND", 0, "Generate a curve with cofactor up to 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},
- {"gp-gen", OPT_GPGEN, "FUNC", 0, "Generate a curve param using a GP function. **NOT IMPLEMENTED**", 3},
- {"gp-check", OPT_GPCHECK, "FUNC", 0, "Check a generated curve param using a GP function. **NOT IMPLEMENTED**", 3},
- {"hex-check", OPT_HEXCHECK, "HEX", 0, "Check a generated curve param hex expansion for the HEX string.", 3},
- {"points", OPT_POINTS, "TYPE", 0, "Generate points of given type (random/prime/all/nonprime/none).", 3},
- {"count", OPT_COUNT, "COUNT", 0, "Generate multiple curves.", 3},
+ {0, 0, 0, 0, "Generation options:", 3},
+ {"random", OPT_RANDOM, 0, 0, "Generate a random curve (using Random approach).", 3},
+ {"prime", OPT_PRIME, 0, 0, "Generate a curve with prime order.", 3},
+ {"cofactor", OPT_COFACTOR, "BOUND", 0, "Generate a curve with cofactor up to 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},
+ {"gp-gen", OPT_GPGEN, "FUNC", 0, "Generate a curve param using a GP function. **NOT IMPLEMENTED**", 3},
+ {"gp-check", OPT_GPCHECK, "FUNC", 0, "Check a generated curve param using a GP function. **NOT IMPLEMENTED**", 3},
+ {"hex-check", OPT_HEXCHECK, "HEX", 0, "Check a generated curve param hex expansion for the HEX string.", 3},
+ {"points", OPT_POINTS, "TYPE", 0, "Generate points of given type (random/prime/all/nonprime/none).", 3},
+ {"count", OPT_COUNT, "COUNT", 0, "Generate multiple curves.", 3},
- {0, 0, 0, 0, "Input/Output options:", 4},
- {"format", OPT_FORMAT, "FORMAT", 0, "Format to output in. One of {csv, json}, default is json.", 4},
- {"input", OPT_INPUT, "FILE", 0, "Input from file.", 4},
- {"output", OPT_OUTPUT, "FILE", 0, "Output into file. Overwrites any existing file!", 4},
- {"append", OPT_APPEND, 0, 0, "Append to output file (don't overwrite).", 4},
- {"verbose", OPT_VERBOSE, "FILE", OPTION_ARG_OPTIONAL, "Verbose logging (to stdout or file).", 4},
+ {0, 0, 0, 0, "Input/Output options:", 4},
+ {"format", OPT_FORMAT, "FORMAT", 0, "Format to output in. One of {csv, json}, default is json.", 4},
+ {"input", OPT_INPUT, "FILE", 0, "Input from file.", 4},
+ {"output", OPT_OUTPUT, "FILE", 0, "Output into file. Overwrites any existing file!", 4},
+ {"append", OPT_APPEND, 0, 0, "Append to output file (don't overwrite).", 4},
+ {"verbose", OPT_VERBOSE, "FILE", OPTION_ARG_OPTIONAL, "Verbose logging (to stdout or file).", 4},
- {0, 0, 0, 0, "Other:", 5},
- {"data-dir", OPT_DATADIR, "DIR", 0, "Set PARI/GP data directory (containing seadata package).", 5},
- {"memory", OPT_MEMORY, "SIZE", 0, "Use PARI stack of SIZE (can have suffix k/m/g).", 5},
- {"threads", OPT_THREADS, "NUM", 0, "Use NUM threads.", 5},
- {"thread-stack", OPT_TSTACK, "SIZE", 0, "Use PARI stack of SIZE (per thread, can have suffix k/m/g).", 5},
- {"timeout", OPT_TIMEOUT, "TIME", 0, "Timeout computation of a curve parameter after TIME (can have suffix s/m/h/d).", 5},
- {0}
+ {0, 0, 0, 0, "Other:", 5},
+ {"data-dir", OPT_DATADIR, "DIR", 0, "Set PARI/GP data directory (containing seadata package).", 5},
+ {"memory", OPT_MEMORY, "SIZE", 0, "Use PARI stack of SIZE (can have suffix k/m/g).", 5},
+ {"threads", OPT_THREADS, "NUM", 0, "Use NUM threads.", 5},
+ {"thread-stack", OPT_TSTACK, "SIZE", 0, "Use PARI stack of SIZE (per thread, can have suffix k/m/g).", 5},
+ {"timeout", OPT_TIMEOUT, "TIME", 0, "Timeout computation of a curve parameter after TIME (can have suffix s/m/h/d).", 5},
+ {0}
};
// clang-format on
@@ -130,13 +135,9 @@ static void cli_end(struct argp_state *state) {
// Only one gen method
switch (cfg->method) {
case METHOD_DEFAULT:
- break;
case METHOD_CM:
- break;
case METHOD_ANOMALOUS:
- break;
case METHOD_SEED:
- break;
case METHOD_INVALID:
break;
default:
@@ -146,6 +147,11 @@ static void cli_end(struct argp_state *state) {
break;
}
+ if (cfg->method == METHOD_SEED && cfg->seed_algo == SEED_BRAINPOOL &&
+ cfg->field == FIELD_BINARY) {
+ argp_failure(state, 1, 0,
+ "Brainpool algorithm only creates prime field curves.");
+ }
/*
// Invalid is not prime or seed by definition.
if (cfg->invalid &&
@@ -227,6 +233,30 @@ error_t cli_parse(int key, char *arg, struct argp_state *state) {
cfg->seed = arg;
}
break;
+ case OPT_BRAINPOOL:
+ cfg->method |= METHOD_SEED;
+ cfg->seed_algo = SEED_BRAINPOOL;
+ if (arg) {
+ if (!brainpool_seed_valid(arg)) {
+ argp_failure(
+ state, 1, 0,
+ "SEED must be exactly 160 bits (40 hex characters).");
+ }
+ cfg->seed = arg;
+ }
+ break;
+ case OPT_BRAINPOOL_RFC:
+ cfg->method |= METHOD_SEED;
+ cfg->seed_algo = SEED_BRAINPOOL_RFC;
+ if (arg) {
+ if (!brainpool_seed_valid(arg)) {
+ argp_failure(
+ state, 1, 0,
+ "SEED must be exactly 160 bits (40 hex characters).");
+ }
+ cfg->seed = arg;
+ }
+ break;
/* Generation options */
case OPT_COUNT:
@@ -299,7 +329,6 @@ error_t cli_parse(int key, char *arg, struct argp_state *state) {
}
break;
}
-
/* IO options */
case OPT_FORMAT:
if (!strcmp(arg, "csv")) {
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-08 09:14:55 +0000