Standard preamble:
========================================================================
..
.... Set up some character translations and predefined strings. \*(-- will
give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
double quote, and \*(R" will give a right double quote. \*(C+ will
give a nicer C++. Capital omega is used to do unbreakable dashes and
therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
nothing in troff, for use with C<>.
.tr \(*W- . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\}
Escape single quotes in literal strings from groff's Unicode transform.
If the F register is >0, we'll generate index entries on stderr for
titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
entries marked with X<> in POD. Of course, you'll have to process the
output yourself in some meaningful fashion.
Avoid warning from groff about undefined register 'F'.
.. .nr rF 0 . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF
Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} ========================================================================
Title "EVP_ASYM_CIPHER_FREE 3"
way too many mistakes in technical documents.
The returned value must eventually be freed with EVP_ASYM_CIPHER_free().
\fBEVP_ASYM_CIPHER_free() decrements the reference count for the \s-1EVP_ASYM_CIPHER\s0 structure. Typically this structure will have been obtained from an earlier call to EVP_ASYM_CIPHER_fetch(). If the reference count drops to 0 then the structure is freed.
\fBEVP_ASYM_CIPHER_up_ref() increments the reference count for an \fB\s-1EVP_ASYM_CIPHER\s0 structure.
\fBEVP_ASYM_CIPHER_is_a() returns 1 if cipher is an implementation of an algorithm that's identifiable with name, otherwise 0.
\fBEVP_ASYM_CIPHER_get0_provider() returns the provider that cipher was fetched from.
\fBEVP_ASYM_CIPHER_do_all_provided() traverses all EVP_ASYM_CIPHERs implemented by all activated providers in the given library context libctx, and for each of the implementations, calls the given function fn with the implementation method and the given arg as argument.
\fBEVP_ASYM_CIPHER_get0_name() returns the algorithm name from the provided implementation for the given cipher. Note that the cipher may have multiple synonyms associated with it. In this case the first name from the algorithm definition is returned. Ownership of the returned string is retained by the cipher object and should not be freed by the caller.
\fBEVP_ASYM_CIPHER_names_do_all() traverses all names for cipher, and calls \fIfn with each name and data.
\fBEVP_ASYM_CIPHER_get0_description() returns a description of the cipher, meant for display and human consumption. The description is at the discretion of the cipher implementation.
\fBEVP_ASYM_CIPHER_gettable_ctx_params() and EVP_ASYM_CIPHER_settable_ctx_params() return a constant \s-1OSSL_PARAM\s0\|(3) array that describes the names and types of key parameters that can be retrieved or set by a key encryption algorithm using \fBEVP_PKEY_CTX_get_params\|(3) and EVP_PKEY_CTX_set_params\|(3).
\fBEVP_ASYM_CIPHER_up_ref() returns 1 for success or 0 otherwise.
\fBEVP_ASYM_CIPHER_names_do_all() returns 1 if the callback was called for all names. A return value of 0 means that the callback was not called for any names.
\fBEVP_ASYM_CIPHER_gettable_ctx_params() and EVP_ASYM_CIPHER_settable_ctx_params() return a constant \s-1OSSL_PARAM\s0\|(3) array or \s-1NULL\s0 on error.
Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.