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authormarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
committermarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
commitff48c0d9098080b51ea12710029135916d117806 (patch)
tree96e6af9caf170ba21a1027b24e306a07e27d7b75 /openssl/demos/smime/smsign.c
parentbb731f5ac92655c4860a41fa818a7a63005f8369 (diff)
downloadvcxsrv-ff48c0d9098080b51ea12710029135916d117806.tar.gz
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svn merge -r514:HEAD ^/branches/released .
Diffstat (limited to 'openssl/demos/smime/smsign.c')
-rw-r--r--openssl/demos/smime/smsign.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/openssl/demos/smime/smsign.c b/openssl/demos/smime/smsign.c
new file mode 100644
index 000000000..ba78830cf
--- /dev/null
+++ b/openssl/demos/smime/smsign.c
@@ -0,0 +1,89 @@
+/* Simple S/MIME signing example */
+#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;
+ EVP_PKEY *skey = NULL;
+ PKCS7 *p7 = NULL;
+ int ret = 1;
+
+ /* For simple S/MIME signing use PKCS7_DETACHED.
+ * On OpenSSL 0.9.9 only:
+ * for streaming detached set PKCS7_DETACHED|PKCS7_STREAM
+ * for streaming non-detached set PKCS7_STREAM
+ */
+ int flags = PKCS7_DETACHED|PKCS7_STREAM;
+
+ OpenSSL_add_all_algorithms();
+ ERR_load_crypto_strings();
+
+ /* Read in signer certificate and private key */
+ 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);
+
+ if (!scert || !skey)
+ goto err;
+
+ /* Open content being signed */
+
+ in = BIO_new_file("sign.txt", "r");
+
+ if (!in)
+ goto err;
+
+ /* Sign content */
+ p7 = PKCS7_sign(scert, skey, NULL, in, flags);
+
+ if (!p7)
+ goto err;
+
+ out = BIO_new_file("smout.txt", "w");
+ if (!out)
+ goto err;
+
+ if (!(flags & PKCS7_STREAM))
+ BIO_reset(in);
+
+ /* Write out S/MIME message */
+ if (!SMIME_write_PKCS7(out, p7, in, flags))
+ 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 (in)
+ BIO_free(in);
+ if (out)
+ BIO_free(out);
+ if (tbio)
+ BIO_free(tbio);
+
+ return ret;
+
+ }