wolfssl-examples/signature/ED25519/genkeybuffers.pl

93 lines
2.2 KiB
Perl
Executable File

#!/usr/bin/perl
# gencertbuf.pl
# version 1.1
# Updated 04/11/2017
#
# Copyright (C) 2006-2017 wolfSSL Inc.
#
use strict;
use warnings;
# ---- SCRIPT SETTINGS -------------------------------------------------------
# output C header file to write cert/key buffers to
my $outputFile = "./test_keys.h";
# 2048-bit certs/keys to be converted
# Used with USE_CERT_BUFFERS_2048 define.
my @fileList_2048 = (
[ "./ed_pub_test_key.der", "ed_pub_key_der_32" ],
[ "./ed_priv_test_key.der", "ed_priv_key_der_64" ],
);
# ----------------------------------------------------------------------------
my $num_2048 = @fileList_2048;
# open our output file, "+>" creates and/or truncates
open OUT_FILE, "+>", $outputFile or die $!;
print OUT_FILE "/* certs_test.h */\n\n";
print OUT_FILE "#ifndef WOLFSSL_CERTS_TEST_H\n";
print OUT_FILE "#define WOLFSSL_CERTS_TEST_H\n\n";
# convert and print 32/64-bit certs/keys
print OUT_FILE "#ifdef USE_CERT_BUFFERS_ED\n\n";
for (my $i = 0; $i < $num_2048; $i++) {
my $fname = $fileList_2048[$i][0];
my $sname = $fileList_2048[$i][1];
print OUT_FILE "/* $fname, (32/64)-bit */\n";
print OUT_FILE "static const unsigned char $sname\[] =\n";
print OUT_FILE "{\n";
file_to_hex($fname);
print OUT_FILE "};\n";
print OUT_FILE "static const int sizeof_$sname = sizeof($sname);\n\n";
}
print OUT_FILE "#endif /* USE_CERT_BUFFERS_ED */\n\n";
print OUT_FILE "#endif /* WOLFSSL_CERTS_TEST_H */\n\n";
# close certs_test.h file
close OUT_FILE or die $!;
# print file as hex, comma-separated, as needed by C buffer
sub file_to_hex {
my $fileName = $_[0];
open my $fp, "<", $fileName or die $!;
binmode($fp);
my $fileLen = -s $fileName;
my $byte;
for (my $i = 0, my $j = 1; $i < $fileLen; $i++, $j++)
{
if ($j == 1) {
print OUT_FILE "\t";
}
read($fp, $byte, 1) or die "Error reading $fileName";
my $output = sprintf("0x%02X", ord($byte));
print OUT_FILE $output;
if ($i != ($fileLen - 1)) {
print OUT_FILE ", ";
}
if ($j == 10) {
$j = 0;
print OUT_FILE "\n";
}
}
print OUT_FILE "\n";
close($fp);
}