Index: openssl/demos/smime/smver.c |
=================================================================== |
--- openssl/demos/smime/smver.c (revision 0) |
+++ openssl/demos/smime/smver.c (revision 0) |
@@ -0,0 +1,87 @@ |
+/* 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); |
+ } |
+ |
+ if (p7) |
+ PKCS7_free(p7); |
+ |
+ if (cacert) |
+ X509_free(cacert); |
+ |
+ if (in) |
+ BIO_free(in); |
+ if (out) |
+ BIO_free(out); |
+ if (tbio) |
+ BIO_free(tbio); |
+ |
+ return ret; |
+ |
+ } |