Index: openssl/demos/smime/smsign2.c |
=================================================================== |
--- openssl/demos/smime/smsign2.c (revision 0) |
+++ openssl/demos/smime/smsign2.c (revision 0) |
@@ -0,0 +1,107 @@ |
+/* S/MIME signing example: 2 signers. OpenSSL 0.9.9 only */ |
+#include <openssl/pem.h> |
+#include <openssl/pkcs7.h> |
+#include <openssl/err.h> |
+ |
+int main(int argc, char **argv) |
+ { |
+ BIO *in = NULL, *out = NULL, *tbio = NULL; |
+ X509 *scert = NULL, *scert2 = NULL; |
+ EVP_PKEY *skey = NULL, *skey2 = NULL; |
+ PKCS7 *p7 = NULL; |
+ int ret = 1; |
+ |
+ OpenSSL_add_all_algorithms(); |
+ ERR_load_crypto_strings(); |
+ |
+ tbio = BIO_new_file("signer.pem", "r"); |
+ |
+ if (!tbio) |
+ goto err; |
+ |
+ scert = PEM_read_bio_X509(tbio, NULL, 0, NULL); |
+ |
+ BIO_reset(tbio); |
+ |
+ skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL); |
+ |
+ BIO_free(tbio); |
+ |
+ tbio = BIO_new_file("signer2.pem", "r"); |
+ |
+ if (!tbio) |
+ goto err; |
+ |
+ scert2 = PEM_read_bio_X509(tbio, NULL, 0, NULL); |
+ |
+ BIO_reset(tbio); |
+ |
+ skey2 = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL); |
+ |
+ if (!scert2 || !skey2) |
+ goto err; |
+ |
+ in = BIO_new_file("sign.txt", "r"); |
+ |
+ if (!in) |
+ goto err; |
+ |
+ p7 = PKCS7_sign(NULL, NULL, NULL, in, PKCS7_STREAM|PKCS7_PARTIAL); |
+ |
+ if (!p7) |
+ goto err; |
+ |
+ /* Add each signer in turn */ |
+ |
+ if (!PKCS7_sign_add_signer(p7, scert, skey, NULL, 0)) |
+ goto err; |
+ |
+ if (!PKCS7_sign_add_signer(p7, scert2, skey2, NULL, 0)) |
+ goto err; |
+ |
+ out = BIO_new_file("smout.txt", "w"); |
+ if (!out) |
+ goto err; |
+ |
+ /* NB: content included and finalized by SMIME_write_PKCS7 */ |
+ |
+ if (!SMIME_write_PKCS7(out, p7, in, PKCS7_STREAM)) |
+ goto err; |
+ |
+ ret = 0; |
+ |
+ err: |
+ |
+ if (ret) |
+ { |
+ fprintf(stderr, "Error Signing Data\n"); |
+ ERR_print_errors_fp(stderr); |
+ } |
+ |
+ if (p7) |
+ PKCS7_free(p7); |
+ |
+ if (scert) |
+ X509_free(scert); |
+ if (skey) |
+ EVP_PKEY_free(skey); |
+ |
+ if (scert2) |
+ X509_free(scert2); |
+ if (skey) |
+ EVP_PKEY_free(skey2); |
+ |
+ if (in) |
+ BIO_free(in); |
+ if (out) |
+ BIO_free(out); |
+ if (tbio) |
+ BIO_free(tbio); |
+ |
+ return ret; |
+ |
+ } |
+ |
+ |
+ |
+ |