1PKCS7_DECRYPT(3)                    OpenSSL                   PKCS7_DECRYPT(3)
2
3
4

NAME

6       PKCS7_decrypt - decrypt content from a PKCS#7 envelopedData structure
7

SYNOPSIS

9        #include <openssl/pkcs7.h>
10
11        int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
12

DESCRIPTION

14       PKCS7_decrypt() extracts and decrypts the content from a PKCS#7
15       envelopedData structure. pkey is the private key of the recipient, cert
16       is the recipients certificate, data is a BIO to write the content to
17       and flags is an optional set of flags.
18

NOTES

20       Although the recipients certificate is not needed to decrypt the data
21       it is needed to locate the appropriate (of possible several) recipients
22       in the PKCS#7 structure.
23
24       The following flags can be passed in the flags parameter.
25
26       If the PKCS7_TEXT flag is set MIME headers for type text/plain are
27       deleted from the content. If the content is not of type text/plain then
28       an error is returned.
29

RETURN VALUES

31       PKCS7_decrypt() returns either 1 for success or 0 for failure.  The
32       error can be obtained from ERR_get_error(3)
33

BUGS

35       PKCS7_decrypt() must be passed the correct recipient key and
36       certificate. It would be better if it could look up the correct key and
37       certificate from a database.
38
39       The lack of single pass processing and need to hold all data in memory
40       as mentioned in PKCS7_sign() also applies to PKCS7_verify().
41

SEE ALSO

43       ERR_get_error(3), PKCS7_encrypt(3)
44

46       Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
47
48       Licensed under the OpenSSL license (the "License").  You may not use
49       this file except in compliance with the License.  You can obtain a copy
50       in the file LICENSE in the source distribution or at
51       <https://www.openssl.org/source/license.html>.
52
53
54
551.1.1i                            2021-07-22                  PKCS7_DECRYPT(3)
Impressum