PKCS12 *PKCS12_create(char *pass, char *name, EVP_PKEY *pkey, X509 *cert, STACK_OF(X509) *ca,
int nid_key, int nid_cert, int iter, int mac_iter, int keytype);
DESCRIPTION
PKCS12_create() creates a PKCS#12 structure.
pass is the passphrase to use.
name is the friendlyName to use for the supplied
certifictate and key. pkey is the
private key to include in the structure and cert its corresponding certificates. ca, if not NULL is an optional set of certificates to
also include in the structure.
nid_key and nid_cert are the encryption algorithms that
should be used for the key and certificate respectively. iter is the encryption algorithm iteration
count to use and mac_iter is the MAC
iteration count to use. keytype is
the type of key.
NOTES
The parameters nid_key, nid_cert, iter, mac_iter and keytype can all be set to zero and sensible
defaults will be used.
These defaults are: 40 bit RC2 encryption for certificates, triple
DES encryption for private keys, a key iteration count of
PKCS12_DEFAULT_ITER (currently 2048) and a MAC iteration count of 1.
The default MAC iteration count is 1 in order to retain compatibility
with old software which did not interpret MAC iteration counts. If
such compatibility is not required then mac_iter should be set to PKCS12_DEFAULT_ITER.
keytype adds a flag to the store
private key. This is a non standard extension that is only currently
interpreted by MSIE. If set to zero the flag is omitted, if set to
KEY_SIG the key can be used for
signing only, if set to KEY_EX it
can be used for signing and encryption. This option was useful for
old export grade software which could use signing only keys of
arbitrary size but had restrictions on the permissible sizes of keys
which could be used for encryption.
NEW FUNCTIONALITY IN OPENSSL 0.9.8
Some additional functionality was added to PKCS12_create() in OpenSSL
0.9.8. These extensions are detailed below.
If a certificate contains an alias
or keyid then this will be used for
the corresponding friendlyName or
localKeyID in the PKCS12 structure.
Either pkey, cert or both can be NULL to indicate that no key or certficate is
required. In previous versions both had to be present or a fatal
error is returned.
nid_key or nid_cert can be set to -1 indicating that no
encryption should be used.
mac_iter can be set to -1 and the
MAC will then be omitted entirely.
