| Index: openssl/demos/cms/cms_dec.c
|
| ===================================================================
|
| --- openssl/demos/cms/cms_dec.c (revision 0)
|
| +++ openssl/demos/cms/cms_dec.c (revision 0)
|
| @@ -0,0 +1,79 @@
|
| +/* Simple S/MIME decryption example */
|
| +#include <openssl/pem.h>
|
| +#include <openssl/cms.h>
|
| +#include <openssl/err.h>
|
| +
|
| +int main(int argc, char **argv)
|
| + {
|
| + BIO *in = NULL, *out = NULL, *tbio = NULL;
|
| + X509 *rcert = NULL;
|
| + EVP_PKEY *rkey = NULL;
|
| + CMS_ContentInfo *cms = NULL;
|
| + int ret = 1;
|
| +
|
| + OpenSSL_add_all_algorithms();
|
| + ERR_load_crypto_strings();
|
| +
|
| + /* Read in recipient certificate and private key */
|
| + tbio = BIO_new_file("signer.pem", "r");
|
| +
|
| + if (!tbio)
|
| + goto err;
|
| +
|
| + rcert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
|
| +
|
| + BIO_reset(tbio);
|
| +
|
| + rkey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
|
| +
|
| + if (!rcert || !rkey)
|
| + goto err;
|
| +
|
| + /* Open S/MIME message to decrypt */
|
| +
|
| + in = BIO_new_file("smencr.txt", "r");
|
| +
|
| + if (!in)
|
| + goto err;
|
| +
|
| + /* Parse message */
|
| + cms = SMIME_read_CMS(in, NULL);
|
| +
|
| + if (!cms)
|
| + goto err;
|
| +
|
| + out = BIO_new_file("decout.txt", "w");
|
| + if (!out)
|
| + goto err;
|
| +
|
| + /* Decrypt S/MIME message */
|
| + if (!CMS_decrypt(cms, rkey, rcert, out, NULL, 0))
|
| + goto err;
|
| +
|
| + ret = 0;
|
| +
|
| + err:
|
| +
|
| + if (ret)
|
| + {
|
| + fprintf(stderr, "Error Decrypting Data\n");
|
| + ERR_print_errors_fp(stderr);
|
| + }
|
| +
|
| + if (cms)
|
| + CMS_ContentInfo_free(cms);
|
| + if (rcert)
|
| + X509_free(rcert);
|
| + if (rkey)
|
| + EVP_PKEY_free(rkey);
|
| +
|
| + if (in)
|
| + BIO_free(in);
|
| + if (out)
|
| + BIO_free(out);
|
| + if (tbio)
|
| + BIO_free(tbio);
|
| +
|
| + return ret;
|
| +
|
| + }
|
|
|