GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
403Webshell
Server IP : 104.21.83.152  /  Your IP : 216.73.216.82
Web Server : LiteSpeed
System : Linux premium229.web-hosting.com 4.18.0-553.45.1.lve.el8.x86_64 #1 SMP Wed Mar 26 12:08:09 UTC 2025 x86_64
User : akhalid ( 749)
PHP Version : 8.3.22
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /opt/cpanel/ea-openssl11/share/man/man3/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /opt/cpanel/ea-openssl11/share/man/man3/EVP_PKEY_meth_get_ctrl.3
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" 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 C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    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\}
.el\{\
.    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.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" 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'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==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
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    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
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    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
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "EVP_PKEY_METH_NEW 3"
.TH EVP_PKEY_METH_NEW 3 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
EVP_PKEY_meth_new, EVP_PKEY_meth_free, EVP_PKEY_meth_copy, EVP_PKEY_meth_find, EVP_PKEY_meth_add0, EVP_PKEY_METHOD, EVP_PKEY_meth_set_init, EVP_PKEY_meth_set_copy, EVP_PKEY_meth_set_cleanup, EVP_PKEY_meth_set_paramgen, EVP_PKEY_meth_set_keygen, EVP_PKEY_meth_set_sign, EVP_PKEY_meth_set_verify, EVP_PKEY_meth_set_verify_recover, EVP_PKEY_meth_set_signctx, EVP_PKEY_meth_set_verifyctx, EVP_PKEY_meth_set_encrypt, EVP_PKEY_meth_set_decrypt, EVP_PKEY_meth_set_derive, EVP_PKEY_meth_set_ctrl, EVP_PKEY_meth_set_digestsign, EVP_PKEY_meth_set_digestverify, EVP_PKEY_meth_set_check, EVP_PKEY_meth_set_public_check, EVP_PKEY_meth_set_param_check, EVP_PKEY_meth_set_digest_custom, EVP_PKEY_meth_get_init, EVP_PKEY_meth_get_copy, EVP_PKEY_meth_get_cleanup, EVP_PKEY_meth_get_paramgen, EVP_PKEY_meth_get_keygen, EVP_PKEY_meth_get_sign, EVP_PKEY_meth_get_verify, EVP_PKEY_meth_get_verify_recover, EVP_PKEY_meth_get_signctx, EVP_PKEY_meth_get_verifyctx, EVP_PKEY_meth_get_encrypt, EVP_PKEY_meth_get_decrypt, EVP_PKEY_meth_get_derive, EVP_PKEY_meth_get_ctrl, EVP_PKEY_meth_get_digestsign, EVP_PKEY_meth_get_digestverify, EVP_PKEY_meth_get_check, EVP_PKEY_meth_get_public_check, EVP_PKEY_meth_get_param_check, EVP_PKEY_meth_get_digest_custom, EVP_PKEY_meth_remove \&\- manipulating EVP_PKEY_METHOD structure
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/evp.h>
\&
\& typedef struct evp_pkey_method_st EVP_PKEY_METHOD;
\&
\& EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags);
\& void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
\& void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src);
\& const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
\& int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
\& int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth);
\&
\& void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
\&                             int (*init) (EVP_PKEY_CTX *ctx));
\& void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
\&                             int (*copy) (EVP_PKEY_CTX *dst,
\&                                          EVP_PKEY_CTX *src));
\& void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
\&                                void (*cleanup) (EVP_PKEY_CTX *ctx));
\& void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
\&                                 int (*paramgen_init) (EVP_PKEY_CTX *ctx),
\&                                 int (*paramgen) (EVP_PKEY_CTX *ctx,
\&                                                  EVP_PKEY *pkey));
\& void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
\&                               int (*keygen_init) (EVP_PKEY_CTX *ctx),
\&                               int (*keygen) (EVP_PKEY_CTX *ctx,
\&                                              EVP_PKEY *pkey));
\& void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
\&                             int (*sign_init) (EVP_PKEY_CTX *ctx),
\&                             int (*sign) (EVP_PKEY_CTX *ctx,
\&                                          unsigned char *sig, size_t *siglen,
\&                                          const unsigned char *tbs,
\&                                          size_t tbslen));
\& void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
\&                               int (*verify_init) (EVP_PKEY_CTX *ctx),
\&                               int (*verify) (EVP_PKEY_CTX *ctx,
\&                                              const unsigned char *sig,
\&                                              size_t siglen,
\&                                              const unsigned char *tbs,
\&                                              size_t tbslen));
\& void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
\&                                       int (*verify_recover_init) (EVP_PKEY_CTX
\&                                                                   *ctx),
\&                                       int (*verify_recover) (EVP_PKEY_CTX
\&                                                              *ctx,
\&                                                              unsigned char
\&                                                              *sig,
\&                                                              size_t *siglen,
\&                                                              const unsigned
\&                                                              char *tbs,
\&                                                              size_t tbslen));
\& void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
\&                                int (*signctx_init) (EVP_PKEY_CTX *ctx,
\&                                                     EVP_MD_CTX *mctx),
\&                                int (*signctx) (EVP_PKEY_CTX *ctx,
\&                                                unsigned char *sig,
\&                                                size_t *siglen,
\&                                                EVP_MD_CTX *mctx));
\& void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
\&                                  int (*verifyctx_init) (EVP_PKEY_CTX *ctx,
\&                                                         EVP_MD_CTX *mctx),
\&                                  int (*verifyctx) (EVP_PKEY_CTX *ctx,
\&                                                    const unsigned char *sig,
\&                                                    int siglen,
\&                                                    EVP_MD_CTX *mctx));
\& void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
\&                                int (*encrypt_init) (EVP_PKEY_CTX *ctx),
\&                                int (*encryptfn) (EVP_PKEY_CTX *ctx,
\&                                                  unsigned char *out,
\&                                                  size_t *outlen,
\&                                                  const unsigned char *in,
\&                                                  size_t inlen));
\& void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
\&                                int (*decrypt_init) (EVP_PKEY_CTX *ctx),
\&                                int (*decrypt) (EVP_PKEY_CTX *ctx,
\&                                                unsigned char *out,
\&                                                size_t *outlen,
\&                                                const unsigned char *in,
\&                                                size_t inlen));
\& void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
\&                               int (*derive_init) (EVP_PKEY_CTX *ctx),
\&                               int (*derive) (EVP_PKEY_CTX *ctx,
\&                                              unsigned char *key,
\&                                              size_t *keylen));
\& void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
\&                             int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
\&                                          void *p2),
\&                             int (*ctrl_str) (EVP_PKEY_CTX *ctx,
\&                                              const char *type,
\&                                              const char *value));
\& void EVP_PKEY_meth_set_digestsign(EVP_PKEY_METHOD *pmeth,
\&                                   int (*digestsign) (EVP_MD_CTX *ctx,
\&                                                      unsigned char *sig,
\&                                                      size_t *siglen,
\&                                                      const unsigned char *tbs,
\&                                                      size_t tbslen));
\& void EVP_PKEY_meth_set_digestverify(EVP_PKEY_METHOD *pmeth,
\&                                     int (*digestverify) (EVP_MD_CTX *ctx,
\&                                                          const unsigned char *sig,
\&                                                          size_t siglen,
\&                                                          const unsigned char *tbs,
\&                                                          size_t tbslen));
\& void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
\&                              int (*check) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
\&                                     int (*check) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
\&                                    int (*check) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
\&                                     int (*digest_custom) (EVP_PKEY_CTX *ctx,
\&                                                           EVP_MD_CTX *mctx));
\&
\& void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
\&                             int (**pinit) (EVP_PKEY_CTX *ctx));
\& void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
\&                             int (**pcopy) (EVP_PKEY_CTX *dst,
\&                                            EVP_PKEY_CTX *src));
\& void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
\&                                void (**pcleanup) (EVP_PKEY_CTX *ctx));
\& void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
\&                                 int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
\&                                 int (**pparamgen) (EVP_PKEY_CTX *ctx,
\&                                                    EVP_PKEY *pkey));
\& void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
\&                               int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
\&                               int (**pkeygen) (EVP_PKEY_CTX *ctx,
\&                                                EVP_PKEY *pkey));
\& void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
\&                             int (**psign_init) (EVP_PKEY_CTX *ctx),
\&                             int (**psign) (EVP_PKEY_CTX *ctx,
\&                                            unsigned char *sig, size_t *siglen,
\&                                            const unsigned char *tbs,
\&                                            size_t tbslen));
\& void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
\&                               int (**pverify_init) (EVP_PKEY_CTX *ctx),
\&                               int (**pverify) (EVP_PKEY_CTX *ctx,
\&                                                const unsigned char *sig,
\&                                                size_t siglen,
\&                                                const unsigned char *tbs,
\&                                                size_t tbslen));
\& void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
\&                                       int (**pverify_recover_init) (EVP_PKEY_CTX
\&                                                                     *ctx),
\&                                       int (**pverify_recover) (EVP_PKEY_CTX
\&                                                                *ctx,
\&                                                                unsigned char
\&                                                                *sig,
\&                                                                size_t *siglen,
\&                                                                const unsigned
\&                                                                char *tbs,
\&                                                                size_t tbslen));
\& void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
\&                                int (**psignctx_init) (EVP_PKEY_CTX *ctx,
\&                                                       EVP_MD_CTX *mctx),
\&                                int (**psignctx) (EVP_PKEY_CTX *ctx,
\&                                                  unsigned char *sig,
\&                                                  size_t *siglen,
\&                                                  EVP_MD_CTX *mctx));
\& void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
\&                                  int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
\&                                                           EVP_MD_CTX *mctx),
\&                                  int (**pverifyctx) (EVP_PKEY_CTX *ctx,
\&                                                      const unsigned char *sig,
\&                                                      int siglen,
\&                                                      EVP_MD_CTX *mctx));
\& void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
\&                                int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
\&                                int (**pencryptfn) (EVP_PKEY_CTX *ctx,
\&                                                    unsigned char *out,
\&                                                    size_t *outlen,
\&                                                    const unsigned char *in,
\&                                                    size_t inlen));
\& void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
\&                                int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
\&                                int (**pdecrypt) (EVP_PKEY_CTX *ctx,
\&                                                  unsigned char *out,
\&                                                  size_t *outlen,
\&                                                  const unsigned char *in,
\&                                                  size_t inlen));
\& void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
\&                               int (**pderive_init) (EVP_PKEY_CTX *ctx),
\&                               int (**pderive) (EVP_PKEY_CTX *ctx,
\&                                                unsigned char *key,
\&                                                size_t *keylen));
\& void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
\&                             int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
\&                                            void *p2),
\&                             int (**pctrl_str) (EVP_PKEY_CTX *ctx,
\&                                                const char *type,
\&                                                const char *value));
\& void EVP_PKEY_meth_get_digestsign(EVP_PKEY_METHOD *pmeth,
\&                                   int (**digestsign) (EVP_MD_CTX *ctx,
\&                                                       unsigned char *sig,
\&                                                       size_t *siglen,
\&                                                       const unsigned char *tbs,
\&                                                       size_t tbslen));
\& void EVP_PKEY_meth_get_digestverify(EVP_PKEY_METHOD *pmeth,
\&                                     int (**digestverify) (EVP_MD_CTX *ctx,
\&                                                           const unsigned char *sig,
\&                                                           size_t siglen,
\&                                                           const unsigned char *tbs,
\&                                                           size_t tbslen));
\& void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
\&                              int (**pcheck) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
\&                                     int (**pcheck) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
\&                                    int (**pcheck) (EVP_PKEY *pkey));
\& void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
\&                                     int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
\&                                                             EVP_MD_CTX *mctx));
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fB\s-1EVP_PKEY_METHOD\s0\fR is a structure which holds a set of methods for a
specific public key cryptographic algorithm. Those methods are usually
used to perform different jobs, such as generating a key, signing or
verifying, encrypting or decrypting, etc.
.PP
There are two places where the \fB\s-1EVP_PKEY_METHOD\s0\fR objects are stored: one
is a built-in static array representing the standard methods for different
algorithms, and the other one is a stack of user-defined application-specific
methods, which can be manipulated by using \fBEVP_PKEY_meth_add0\fR\|(3).
.PP
The \fB\s-1EVP_PKEY_METHOD\s0\fR objects are usually referenced by \fB\s-1EVP_PKEY_CTX\s0\fR
objects.
.SS "Methods"
.IX Subsection "Methods"
The methods are the underlying implementations of a particular public key
algorithm present by the \fB\s-1EVP_PKEY_CTX\s0\fR object.
.PP
.Vb 3
\& int (*init) (EVP_PKEY_CTX *ctx);
\& int (*copy) (EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
\& void (*cleanup) (EVP_PKEY_CTX *ctx);
.Ve
.PP
The \fBinit()\fR method is called to initialize algorithm-specific data when a new
\&\fB\s-1EVP_PKEY_CTX\s0\fR is created. As opposed to \fBinit()\fR, the \fBcleanup()\fR method is called
when an \fB\s-1EVP_PKEY_CTX\s0\fR is freed. The \fBcopy()\fR method is called when an \fB\s-1EVP_PKEY_CTX\s0\fR
is being duplicated. Refer to \fBEVP_PKEY_CTX_new\fR\|(3), \fBEVP_PKEY_CTX_new_id\fR\|(3),
\&\fBEVP_PKEY_CTX_free\fR\|(3) and \fBEVP_PKEY_CTX_dup\fR\|(3).
.PP
.Vb 2
\& int (*paramgen_init) (EVP_PKEY_CTX *ctx);
\& int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
.Ve
.PP
The \fBparamgen_init()\fR and \fBparamgen()\fR methods deal with key parameter generation.
They are called by \fBEVP_PKEY_paramgen_init\fR\|(3) and \fBEVP_PKEY_paramgen\fR\|(3) to
handle the parameter generation process.
.PP
.Vb 2
\& int (*keygen_init) (EVP_PKEY_CTX *ctx);
\& int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
.Ve
.PP
The \fBkeygen_init()\fR and \fBkeygen()\fR methods are used to generate the actual key for
the specified algorithm. They are called by \fBEVP_PKEY_keygen_init\fR\|(3) and
\&\fBEVP_PKEY_keygen\fR\|(3).
.PP
.Vb 3
\& int (*sign_init) (EVP_PKEY_CTX *ctx);
\& int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
\&              const unsigned char *tbs, size_t tbslen);
.Ve
.PP
The \fBsign_init()\fR and \fBsign()\fR methods are used to generate the signature of a
piece of data using a private key. They are called by \fBEVP_PKEY_sign_init\fR\|(3)
and \fBEVP_PKEY_sign\fR\|(3).
.PP
.Vb 4
\& int (*verify_init) (EVP_PKEY_CTX *ctx);
\& int (*verify) (EVP_PKEY_CTX *ctx,
\&                const unsigned char *sig, size_t siglen,
\&                const unsigned char *tbs, size_t tbslen);
.Ve
.PP
The \fBverify_init()\fR and \fBverify()\fR methods are used to verify whether a signature is
valid. They are called by \fBEVP_PKEY_verify_init\fR\|(3) and \fBEVP_PKEY_verify\fR\|(3).
.PP
.Vb 4
\& int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
\& int (*verify_recover) (EVP_PKEY_CTX *ctx,
\&                        unsigned char *rout, size_t *routlen,
\&                        const unsigned char *sig, size_t siglen);
.Ve
.PP
The \fBverify_recover_init()\fR and \fBverify_recover()\fR methods are used to verify a
signature and then recover the digest from the signature (for instance, a
signature that was generated by \s-1RSA\s0 signing algorithm). They are called by
\&\fBEVP_PKEY_verify_recover_init\fR\|(3) and \fBEVP_PKEY_verify_recover\fR\|(3).
.PP
.Vb 3
\& int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
\& int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
\&                 EVP_MD_CTX *mctx);
.Ve
.PP
The \fBsignctx_init()\fR and \fBsignctx()\fR methods are used to sign a digest present by
a \fB\s-1EVP_MD_CTX\s0\fR object. They are called by the EVP_DigestSign functions. See
\&\fBEVP_DigestSignInit\fR\|(3) for details.
.PP
.Vb 3
\& int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
\& int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
\&                   EVP_MD_CTX *mctx);
.Ve
.PP
The \fBverifyctx_init()\fR and \fBverifyctx()\fR methods are used to verify a signature
against the data in a \fB\s-1EVP_MD_CTX\s0\fR object. They are called by the various
EVP_DigestVerify functions. See \fBEVP_DigestVerifyInit\fR\|(3) for details.
.PP
.Vb 3
\& int (*encrypt_init) (EVP_PKEY_CTX *ctx);
\& int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
\&                 const unsigned char *in, size_t inlen);
.Ve
.PP
The \fBencrypt_init()\fR and \fBencrypt()\fR methods are used to encrypt a piece of data.
They are called by \fBEVP_PKEY_encrypt_init\fR\|(3) and \fBEVP_PKEY_encrypt\fR\|(3).
.PP
.Vb 3
\& int (*decrypt_init) (EVP_PKEY_CTX *ctx);
\& int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
\&                 const unsigned char *in, size_t inlen);
.Ve
.PP
The \fBdecrypt_init()\fR and \fBdecrypt()\fR methods are used to decrypt a piece of data.
They are called by \fBEVP_PKEY_decrypt_init\fR\|(3) and \fBEVP_PKEY_decrypt\fR\|(3).
.PP
.Vb 2
\& int (*derive_init) (EVP_PKEY_CTX *ctx);
\& int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
.Ve
.PP
The \fBderive_init()\fR and \fBderive()\fR methods are used to derive the shared secret
from a public key algorithm (for instance, the \s-1DH\s0 algorithm). They are called by
\&\fBEVP_PKEY_derive_init\fR\|(3) and \fBEVP_PKEY_derive\fR\|(3).
.PP
.Vb 2
\& int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
\& int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
.Ve
.PP
The \fBctrl()\fR and \fBctrl_str()\fR methods are used to adjust algorithm-specific
settings. See \fBEVP_PKEY_CTX_ctrl\fR\|(3) and related functions for details.
.PP
.Vb 5
\& int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
\&                    const unsigned char *tbs, size_t tbslen);
\& int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
\&                      size_t siglen, const unsigned char *tbs,
\&                      size_t tbslen);
.Ve
.PP
The \fBdigestsign()\fR and \fBdigestverify()\fR methods are used to generate or verify
a signature in a one-shot mode. They could be called by \fBEVP_DigestSign\fR\|(3)
and \fBEVP_DigestVerify\fR\|(3).
.PP
.Vb 3
\& int (*check) (EVP_PKEY *pkey);
\& int (*public_check) (EVP_PKEY *pkey);
\& int (*param_check) (EVP_PKEY *pkey);
.Ve
.PP
The \fBcheck()\fR, \fBpublic_check()\fR and \fBparam_check()\fR methods are used to validate a
key-pair, the public component and parameters respectively for a given \fBpkey\fR.
They could be called by \fBEVP_PKEY_check\fR\|(3), \fBEVP_PKEY_public_check\fR\|(3) and
\&\fBEVP_PKEY_param_check\fR\|(3) respectively.
.PP
.Vb 1
\& int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
.Ve
.PP
The \fBdigest_custom()\fR method is used to generate customized digest content before
the real message is passed to functions like \fBEVP_DigestSignUpdate\fR\|(3) or
\&\fBEVP_DigestVerifyInit\fR\|(3). This is usually required by some public key
signature algorithms like \s-1SM2\s0 which requires a hashed prefix to the message to
be signed. The \fBdigest_custom()\fR function will be called by \fBEVP_DigestSignInit\fR\|(3)
and \fBEVP_DigestVerifyInit\fR\|(3).
.SS "Functions"
.IX Subsection "Functions"
\&\fBEVP_PKEY_meth_new()\fR creates and returns a new \fB\s-1EVP_PKEY_METHOD\s0\fR object,
and associates the given \fBid\fR and \fBflags\fR. The following flags are
supported:
.PP
.Vb 2
\& EVP_PKEY_FLAG_AUTOARGLEN
\& EVP_PKEY_FLAG_SIGCTX_CUSTOM
.Ve
.PP
If an \fB\s-1EVP_PKEY_METHOD\s0\fR is set with the \fB\s-1EVP_PKEY_FLAG_AUTOARGLEN\s0\fR flag, the
maximum size of the output buffer will be automatically calculated or checked
in corresponding \s-1EVP\s0 methods by the \s-1EVP\s0 framework. Thus the implementations of
these methods don't need to care about handling the case of returning output
buffer size by themselves. For details on the output buffer size, refer to
\&\fBEVP_PKEY_sign\fR\|(3).
.PP
The \fB\s-1EVP_PKEY_FLAG_SIGCTX_CUSTOM\s0\fR is used to indicate the \fBsignctx()\fR method
of an \fB\s-1EVP_PKEY_METHOD\s0\fR is always called by the \s-1EVP\s0 framework while doing a
digest signing operation by calling \fBEVP_DigestSignFinal\fR\|(3).
.PP
\&\fBEVP_PKEY_meth_free()\fR frees an existing \fB\s-1EVP_PKEY_METHOD\s0\fR pointed by
\&\fBpmeth\fR.
.PP
\&\fBEVP_PKEY_meth_copy()\fR copies an \fB\s-1EVP_PKEY_METHOD\s0\fR object from \fBsrc\fR
to \fBdst\fR.
.PP
\&\fBEVP_PKEY_meth_find()\fR finds an \fB\s-1EVP_PKEY_METHOD\s0\fR object with the \fBid\fR.
This function first searches through the user-defined method objects and
then the built-in objects.
.PP
\&\fBEVP_PKEY_meth_add0()\fR adds \fBpmeth\fR to the user defined stack of methods.
.PP
\&\fBEVP_PKEY_meth_remove()\fR removes an \fB\s-1EVP_PKEY_METHOD\s0\fR object added by
\&\fBEVP_PKEY_meth_add0()\fR.
.PP
The EVP_PKEY_meth_set functions set the corresponding fields of
\&\fB\s-1EVP_PKEY_METHOD\s0\fR structure with the arguments passed.
.PP
The EVP_PKEY_meth_get functions get the corresponding fields of
\&\fB\s-1EVP_PKEY_METHOD\s0\fR structure to the arguments provided.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBEVP_PKEY_meth_new()\fR returns a pointer to a new \fB\s-1EVP_PKEY_METHOD\s0\fR
object or returns \s-1NULL\s0 on error.
.PP
\&\fBEVP_PKEY_meth_free()\fR and \fBEVP_PKEY_meth_copy()\fR do not return values.
.PP
\&\fBEVP_PKEY_meth_find()\fR returns a pointer to the found \fB\s-1EVP_PKEY_METHOD\s0\fR
object or returns \s-1NULL\s0 if not found.
.PP
\&\fBEVP_PKEY_meth_add0()\fR returns 1 if method is added successfully or 0
if an error occurred.
.PP
\&\fBEVP_PKEY_meth_remove()\fR returns 1 if method is removed successfully or
0 if an error occurred.
.PP
All EVP_PKEY_meth_set and EVP_PKEY_meth_get functions have no return
values. For the 'get' functions, function pointers are returned by
arguments.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2017\-2019 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (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>.

Youez - 2016 - github.com/yon3zu
LinuXploit