blob: 90cf5062f14fc17572f9ff89f613bb1384d72785 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
=pod
=head1 NAME
PKCS7_decrypt - decrypt content from a PKCS#7 envelopedData structure
=head1 SYNOPSIS
#include <openssl/pkcs7.h>
int PKCS7_decrypt(PKCS7 *p7, EVP_PKEY *pkey, X509 *cert, BIO *data, int flags);
=head1 DESCRIPTION
PKCS7_decrypt() extracts and decrypts the content from a PKCS#7 envelopedData
structure. B<pkey> is the private key of the recipient, B<cert> is the
recipients certificate, B<data> is a BIO to write the content to and
B<flags> is an optional set of flags.
=head1 NOTES
Although the recipients certificate is not needed to decrypt the data it is needed
to locate the appropriate (of possible several) recipients in the PKCS#7 structure.
The following flags can be passed in the B<flags> parameter.
If the B<PKCS7_TEXT> flag is set MIME headers for type B<text/plain> are deleted
from the content. If the content is not of type B<text/plain> then an error is
returned.
=head1 RETURN VALUES
PKCS7_decrypt() returns either 1 for success or 0 for failure.
The error can be obtained from ERR_get_error(3)
=head1 BUGS
PKCS7_decrypt() must be passed the correct recipient key and certificate. It would
be better if it could look up the correct key and certificate from a database.
The lack of single pass processing and need to hold all data in memory as
mentioned in PKCS7_sign() also applies to PKCS7_verify().
=head1 SEE ALSO
L<ERR_get_error(3)>, L<PKCS7_encrypt(3)>
=cut
|
