On Mon, 2019-12-16 at 23:39 +0100, Torsten Kuehnel wrote:
> I'm new to programming using libssh.
>
> When i take the keygen.c example file in the examples directory, it
> fails during execution when i change the keytype.
>
> [tdkuehnel@ multiboot examples]$ ./keygen
> Failed to write private key file[tdkuehnel@ multiboot examples]$
>
> /* rv = ssh_pki_generate(SSH_KEYTYPE_ED25519, 0, &key);*/
> rv = ssh_pki_generate(SSH_KEYTYPE_RSA, 1024, &key);
>
> Do i miss additional steps in preparing the rsa key to be exported ?
>
> Complete code:
>
> #include <libssh/libssh.h>
> #include <stdio.h>
>
> int main(void)
> {
> ssh_key key = NULL;
> int rv;
>
> /* Generate a new ED25519 private key file */
> /* rv = ssh_pki_generate(SSH_KEYTYPE_ED25519, 0, &key);*/
> rv = ssh_pki_generate(SSH_KEYTYPE_RSA, 1024, &key);
> if (rv != SSH_OK) {
> fprintf(stderr, "Failed to generate private key");
> return -1;
> }
>
> /* Write it to a file testkey in the current dirrectory */
> rv = ssh_pki_export_privkey_file(key, NULL, NULL, NULL,
> "testkey");
> if (rv != SSH_OK) {
> fprintf(stderr, "Failed to write private key file");
> return -1;
> }
>
> return 0;
> }
This exact code works for me just fine and generates the testkey file
without any problem (with libssh-0.9.2-1.fc31.x86_64). Are you getting
the error from the key generation or export function?
$ gcc -lssh keygen.c -o keygen
$ ./keygen
$ echo $?
0
$ cat testkey
-----BEGIN PRIVATE KEY-----
[...]
Regards,
--
Jakub Jelen
Senior Software Engineer
Security Technologies
Red Hat, Inc.
