mirror of
https://github.com/openssl/openssl.git
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5e73e6baac
[skip ci] Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7834)
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
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* Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Simple S/MIME verification example */
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#include <openssl/pem.h>
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#include <openssl/pkcs7.h>
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#include <openssl/err.h>
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int main(int argc, char **argv)
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{
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BIO *in = NULL, *out = NULL, *tbio = NULL, *cont = NULL;
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X509_STORE *st = NULL;
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X509 *cacert = NULL;
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PKCS7 *p7 = NULL;
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int ret = 1;
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OpenSSL_add_all_algorithms();
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ERR_load_crypto_strings();
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/* Set up trusted CA certificate store */
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st = X509_STORE_new();
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/* Read in signer certificate and private key */
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tbio = BIO_new_file("cacert.pem", "r");
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if (!tbio)
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goto err;
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cacert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
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if (!cacert)
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goto err;
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if (!X509_STORE_add_cert(st, cacert))
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goto err;
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/* Open content being signed */
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in = BIO_new_file("smout.txt", "r");
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if (!in)
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goto err;
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/* Sign content */
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p7 = SMIME_read_PKCS7(in, &cont);
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if (!p7)
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goto err;
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/* File to output verified content to */
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out = BIO_new_file("smver.txt", "w");
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if (!out)
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goto err;
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if (!PKCS7_verify(p7, NULL, st, cont, out, 0)) {
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fprintf(stderr, "Verification Failure\n");
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goto err;
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}
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fprintf(stderr, "Verification Successful\n");
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ret = 0;
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err:
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if (ret) {
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fprintf(stderr, "Error Verifying Data\n");
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ERR_print_errors_fp(stderr);
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}
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PKCS7_free(p7);
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X509_free(cacert);
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BIO_free(in);
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BIO_free(out);
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BIO_free(tbio);
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return ret;
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}
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