mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
1d39620b34
This library is meant to be small and quick. It's based on WPACKET,
which was extended to support DER writing. The way it's used is a
bit unusual, as it's used to write the structures backward into a
given buffer. A typical quick call looks like this:
/*
* Fill in this structure:
*
* something ::= SEQUENCE {
* id OBJECT IDENTIFIER,
* x [0] INTEGER OPTIONAL,
* y [1] BOOLEAN OPTIONAL,
* n INTEGER
* }
*/
unsigned char buf[nnnn], *p = NULL;
size_t encoded_len = 0;
WPACKET pkt;
int ok;
ok = WPACKET_init_der(&pkt, buf, sizeof(buf)
&& DER_w_start_sequence(&pkt, -1)
&& DER_w_bn(&pkt, -1, bn)
&& DER_w_boolean(&pkt, 1, bool)
&& DER_w_precompiled(&pkt, -1, OID, sizeof(OID))
&& DER_w_end_sequence(&pkt, -1)
&& WPACKET_finish(&pkt)
&& WPACKET_get_total_written(&pkt, &encoded_len)
&& (p = WPACKET_get_curr(&pkt)) != NULL;
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11450)
|
||
|---|---|---|
| .. | ||
| HOWTO | ||
| images | ||
| internal | ||
| man1 | ||
| man3 | ||
| man5 | ||
| man7 | ||
| build.info | ||
| dir-locals.example.el | ||
| fingerprints.txt | ||
| openssl-c-indent.el | ||
| perlvars.pm | ||
| README | ||
README This file
fingerprints.txt
PGP fingerprints of authorised release signers
standards.txt
Moved to the web, https://www.openssl.org/docs/standards.html
HOWTO/
A few how-to documents; not necessarily up-to-date
man1/
The openssl command-line tools; start with openssl.pod
man3/
The SSL library and the crypto library
man5/
File formats
man7/
Overviews; start with crypto.pod and ssl.pod, for example
Algorithm specific EVP_PKEY documentation.
Formatted versions of the manpages (apps,ssl,crypto) can be found at
https://www.openssl.org/docs/manpages.html