1 files changed, 83 insertions, 0 deletions
diff --git a/openssl-1.1.0h/demos/smime/smver.c b/openssl-1.1.0h/demos/smime/smver.c
new file mode 100644
index 0000000..75411c4
--- /dev/null
+++ b/openssl-1.1.0h/demos/smime/smver.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* Simple S/MIME verification 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, *cont = NULL;
+    X509_STORE *st = NULL;
+    X509 *cacert = NULL;
+    PKCS7 *p7 = NULL;
+
+    int ret = 1;
+
+    OpenSSL_add_all_algorithms();
+    ERR_load_crypto_strings();
+
+    /* Set up trusted CA certificate store */
+
+    st = X509_STORE_new();
+
+    /* Read in signer certificate and private key */
+    tbio = BIO_new_file("cacert.pem", "r");
+
+    if (!tbio)
+        goto err;
+
+    cacert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
+
+    if (!cacert)
+        goto err;
+
+    if (!X509_STORE_add_cert(st, cacert))
+        goto err;
+
+    /* Open content being signed */
+
+    in = BIO_new_file("smout.txt", "r");
+
+    if (!in)
+        goto err;
+
+    /* Sign content */
+    p7 = SMIME_read_PKCS7(in, &cont);
+
+    if (!p7)
+        goto err;
+
+    /* File to output verified content to */
+    out = BIO_new_file("smver.txt", "w");
+    if (!out)
+        goto err;
+
+    if (!PKCS7_verify(p7, NULL, st, cont, out, 0)) {
+        fprintf(stderr, "Verification Failure\n");
+        goto err;
+    }
+
+    fprintf(stderr, "Verification Successful\n");
+
+    ret = 0;
+
+ err:
+    if (ret) {
+        fprintf(stderr, "Error Verifying Data\n");
+        ERR_print_errors_fp(stderr);
+    }
+    PKCS7_free(p7);
+    X509_free(cacert);
+    BIO_free(in);
+    BIO_free(out);
+    BIO_free(tbio);
+    return ret;
+}