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modsign: Allow signing key to be PKCS#11 

This is only the key; the corresponding *cert* still needs to be in
$(topdir)/signing_key.x509. And there's no way to actually use this
from the build system yet.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Woodhouse 2015-07-20 21:16:29 +01:00 committed by David Howells
parent af1eb29132
commit 6e3e281f39
1 changed files with 24 additions and 5 deletions
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29
scripts/sign-file.c
View File

@ -22,6 +22,7 @@
#include <openssl/pem.h>
#include <openssl/pkcs7.h>
#include <openssl/err.h>
#include <openssl/engine.h>
struct module_signature {
uint8_t algo; /* Public-key crypto algorithm [0] */
@ -154,11 +155,29 @@ int main(int argc, char **argv)
/* Read the private key and the X.509 cert the PKCS#7 message
* will point to.
*/
b = BIO_new_file(private_key_name, "rb");
ERR(!b, "%s", private_key_name);
private_key = PEM_read_bio_PrivateKey(b, NULL, pem_pw_cb, NULL);
ERR(!private_key, "%s", private_key_name);
BIO_free(b);
if (!strncmp(private_key_name, "pkcs11:", 7)) {
ENGINE *e;
ENGINE_load_builtin_engines();
drain_openssl_errors();
e = ENGINE_by_id("pkcs11");
ERR(!e, "Load PKCS#11 ENGINE");
if (ENGINE_init(e))
drain_openssl_errors();
else
ERR(1, "ENGINE_init");
if (key_pass)
ERR(!ENGINE_ctrl_cmd_string(e, "PIN", key_pass, 0), "Set PKCS#11 PIN");
private_key = ENGINE_load_private_key(e, private_key_name, NULL,
NULL);
ERR(!private_key, "%s", private_key_name);
} else {
b = BIO_new_file(private_key_name, "rb");
ERR(!b, "%s", private_key_name);
private_key = PEM_read_bio_PrivateKey(b, NULL, pem_pw_cb, NULL);
ERR(!private_key, "%s", private_key_name);
BIO_free(b);
}
b = BIO_new_file(x509_name, "rb");
ERR(!b, "%s", x509_name);