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-rw-r--r--src/gen_context.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/gen_context.c b/src/gen_context.c
new file mode 100644
index 0000000000..1835fd491d
--- /dev/null
+++ b/src/gen_context.c
@@ -0,0 +1,74 @@
+/**********************************************************************
+ * Copyright (c) 2013, 2014, 2015 Thomas Daede, Cory Fields *
+ * Distributed under the MIT software license, see the accompanying *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#define USE_BASIC_CONFIG 1
+
+#include "basic-config.h"
+#include "include/secp256k1.h"
+#include "field_impl.h"
+#include "scalar_impl.h"
+#include "group_impl.h"
+#include "ecmult_gen_impl.h"
+
+static void default_error_callback_fn(const char* str, void* data) {
+ (void)data;
+ fprintf(stderr, "[libsecp256k1] internal consistency check failed: %s\n", str);
+ abort();
+}
+
+static const secp256k1_callback default_error_callback = {
+ default_error_callback_fn,
+ NULL
+};
+
+int main(int argc, char **argv) {
+ secp256k1_ecmult_gen_context ctx;
+ int inner;
+ int outer;
+ FILE* fp;
+
+ (void)argc;
+ (void)argv;
+
+ fp = fopen("src/ecmult_static_context.h","w");
+ if (fp == NULL) {
+ fprintf(stderr, "Could not open src/ecmult_static_context.h for writing!\n");
+ return -1;
+ }
+
+ fprintf(fp, "#ifndef _SECP256K1_ECMULT_STATIC_CONTEXT_\n");
+ fprintf(fp, "#define _SECP256K1_ECMULT_STATIC_CONTEXT_\n");
+ fprintf(fp, "#include \"group.h\"\n");
+ fprintf(fp, "#define SC SECP256K1_GE_STORAGE_CONST\n");
+ fprintf(fp, "static const secp256k1_ge_storage secp256k1_ecmult_static_context[64][16] = {\n");
+
+ secp256k1_ecmult_gen_context_init(&ctx);
+ secp256k1_ecmult_gen_context_build(&ctx, &default_error_callback);
+ for(outer = 0; outer != 64; outer++) {
+ fprintf(fp,"{\n");
+ for(inner = 0; inner != 16; inner++) {
+ fprintf(fp," SC(%uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu)", SECP256K1_GE_STORAGE_CONST_GET((*ctx.prec)[outer][inner]));
+ if (inner != 15) {
+ fprintf(fp,",\n");
+ } else {
+ fprintf(fp,"\n");
+ }
+ }
+ if (outer != 63) {
+ fprintf(fp,"},\n");
+ } else {
+ fprintf(fp,"}\n");
+ }
+ }
+ fprintf(fp,"};\n");
+ secp256k1_ecmult_gen_context_clear(&ctx);
+
+ fprintf(fp, "#undef SC\n");
+ fprintf(fp, "#endif\n");
+ fclose(fp);
+
+ return 0;
+}