hreese/exim-encrypt-dlfunc
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This commit is contained in:
Heiko Reese
2021-08-20 00:48:18 +02:00
parent 4acdfffc65
commit 4ff77be04a
4 changed files with 113 additions and 57 deletions
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22
src/genkey.c
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@ -32,6 +32,15 @@ void
dump_key_as_exim_config(FILE * f, const char *name, unsigned char *key,
unsigned int keylen)
{
// write a comment with C variable declaration
fprintf(f, "# const unsigned char %s[%d] = { ", name, keylen);
for (int i = 0; i < keylen; i++) {
fprintf(f, "0x%02x", key[i]);
if (i < keylen - 1) {
fprintf(f, ", ");
}
}
fprintf(f, " }; const unsigned int %s_length = %d;\n", name, keylen);
// encode with base64
unsigned int b64len = sodium_base64_ENCODED_LEN(keylen, sodium_base64_VARIANT_ORIGINAL);
unsigned char *b64string = malloc(b64len);
@ -89,6 +98,8 @@ void create_cryptobox_keys(const char *filebase, const char *varname)
unsigned char recipient_pk[crypto_box_PUBLICKEYBYTES];
unsigned char recipient_sk[crypto_box_SECRETKEYBYTES];
crypto_box_keypair(recipient_pk, recipient_sk);
char pk_filename[4096];
char pk_varname[4096];
char sk_filename[4096];
@ -106,11 +117,10 @@ void create_cryptobox_keys(const char *filebase, const char *varname)
}
void create_secretboy_key(const char *filebase, const char *varname) {
void create_secretbox_key(const char *filebase, const char *varname) {
unsigned char key[crypto_secretbox_KEYBYTES];
while (key_contains_zero(key, crypto_secretbox_KEYBYTES)) {
crypto_secretbox_keygen(key);
}
crypto_secretbox_keygen(key);
char key_filename[4096];
char key_varname[4096];
@ -121,7 +131,7 @@ void create_secretboy_key(const char *filebase, const char *varname) {
write_key_files(key_filename, key_varname, key, crypto_secretbox_KEYBYTES);
}
int main(void)
int main(int argc, char *argv[])
{
if (sodium_init() < 0) {
fputs("Unable to initialize libsodium", stderr);
@ -130,8 +140,6 @@ int main(void)
fputs("=== Creating cryptobox key pair ===\n", stderr);
create_cryptobox_keys("cryptobox_recipient", "cryptobox_recipient");
fputs("=== Creating secretbox key ===\n", stderr);
create_secretboy_key("secretbox", "secretbox");
exit(EXIT_SUCCESS);
}