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Add minimal save generator

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This commit is contained in:
Maxim Biro
2020-04-04 16:38:28 -04:00
parent 4b73607b6f
commit 40dd88596e
3 changed files with 79 additions and 7 deletions
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INSTALL.md
+9 -7
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@@ -45,13 +45,15 @@ This repository, although called `toxcore`, in fact contains several libraries b
There are some programs that are not plugged into the CMake build system which you might find interesting. You would need to build those programs yourself. These programs reside in [`other/fun`](other/fun) directory.
| Name | Type | Dependencies | Platform | Description |
|-----------------------|------------|----------------------|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `bootstrap_node_info` | Script | python3 | Cross-platform | Script for getting version and Message Of The Day (MOTD) information from a DHT bootstrap node. |
| `cracker` | Executable | libnacl or libsodium | Cross-platform | Tries to find a curve25519 key pair, hex representation of the public key of which starts with the specified byte sequence. |
| `strkey` | Executable | libsodium | Cross-platform | Tries to find a curve25519 key pair, hex representation of the public key of which contains a specified byte pattern at the specified position or at any position. |
| `make-funny-savefile` | Script | python | Cross-platform | Generates Tox profile file (savedata file) with provided key pair. Useful for generating Tox profiles from the output of cracker or strkey programs. |
| `sign` | Executable | libsodium | Cross-platform | Program for ed25519 file signing. |
| Name | Type | Dependencies | Platform | Description |
|--------------------------|------------|----------------------|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `bootstrap_node_info` | Script | python3 | Cross-platform | Prints version and Message Of The Day (MOTD) information of a specified DHT bootstrap node. |
| `cracker` | Executable | libnacl or libsodium | Cross-platform | Tries to find a curve25519 key pair, hex representation of the public key of which starts with a specified byte sequence. |
| `make-funny-savefile` | Script | python | Cross-platform | Generates a Tox profile file (savedata file) with the provided key pair. Useful for generating Tox profiles from the output of cracker or strkey programs. |
| `minimal-save-generator` | Executable | libsodium | Cross-platform | Generates a minimal Tox profile file (savedata file) with a random key pair. |
| `save-generator` | Executable | libtoxcore | Cross-platform | Generates a Tox profile file (savedata file) with a random key pair using libtoxcore. Allows setting a name and adding friends. |
| `sign` | Executable | libsodium | Cross-platform | Signs a file with a ed25519 key. |
| `strkey` | Executable | libsodium | Cross-platform | Tries to find a curve25519 key pair, hex representation of the public key of which contains a specified byte pattern at a specified position or at any position. |
## Building
other/fun/BUILD.bazel
+8
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@@ -8,6 +8,14 @@ cc_binary(
"@libsodium",
],
)
cc_binary(
name = "minimal-save-generator",
srcs = ["minimal-save-generator.c"],
deps = [
"@libsodium",
],
)
cc_binary(
name = "sign",
other/fun/minimal-save-generator.c
+62
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@@ -0,0 +1,62 @@
/* minimal-save-generator -- Minimal Save Generator
*
* Generates a minimal Tox savedata file that can be used in clients.
* Prints the savedata file to stderr, prints information to stdout.
*
* Requires sodium library.
*
* Usage: minimal-save-generator 2> profile.tox
*
* Compile: gcc minimal-save-generator.c -o minimal-save-generator -lsodium
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sodium.h>
int main(void)
{
unsigned char public_key[crypto_box_PUBLICKEYBYTES];
unsigned char secret_key[crypto_box_SECRETKEYBYTES];
crypto_box_keypair(public_key, secret_key);
// print new tox savedata to stderr
char tox_file[] = "\x00\x00\x00\x00\x1f\x1b\xed\x15\x44\x00\x00\x00\x01\x00\xce\x01\x00\x00\x00\x00";
fwrite(tox_file, sizeof(tox_file) - 1, 1, stderr);
fwrite(public_key, sizeof(public_key), 1, stderr);
fwrite(secret_key, sizeof(secret_key), 1, stderr);
// print info on it to stdout
char public_key_str[crypto_box_PUBLICKEYBYTES * 2 + 1];
char secret_key_str[crypto_box_SECRETKEYBYTES * 2 + 1];
sodium_bin2hex(public_key_str, sizeof(public_key_str), public_key, sizeof(public_key));
sodium_bin2hex(secret_key_str, sizeof(secret_key_str), secret_key, sizeof(secret_key));
for (size_t i = 0; i < sizeof(public_key_str); i ++) {
public_key_str[i] = toupper(public_key_str[i]);
secret_key_str[i] = toupper(secret_key_str[i]);
}
fprintf(stdout, "Public key: %s\n", public_key_str);
fprintf(stdout, "Secret key: %s\n", secret_key_str);
// calculate checksum for tox id printing
unsigned char checksum[2] = {0};
for (size_t i = 0; i < crypto_box_PUBLICKEYBYTES; i ++) {
checksum[i % 2] ^= public_key[i];
}
char checksum_str[sizeof(checksum) * 2 + 1];
sodium_bin2hex(checksum_str, sizeof(checksum_str), checksum, sizeof(checksum));
for (size_t i = 0; i < sizeof(checksum_str); i ++) {
checksum_str[i] = toupper(checksum_str[i]);
}
fprintf(stdout, "Tox Id: %s00000000%s\n", public_key_str, checksum_str);
return 0;
}