ZerethShell
File Manager
SQL Manager
/
proc
/
thread-self
/
root
/
opt
/
alt
/
openssl
/
share
/
man
/
man3
RSA_check_key.3ssl
.\" 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 "RSA_check_key 3" .TH RSA_check_key 3 "2019-12-20" "1.0.2u" "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" RSA_check_key \- validate private RSA keys .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/rsa.h> \& \& int RSA_check_key(RSA *rsa); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" This function validates \s-1RSA\s0 keys. It checks that \fBp\fR and \fBq\fR are in fact prime, and that \fBn = p*q\fR. .PP It also checks that \fBd*e = 1 mod (p\-1*q\-1)\fR, and that \fBdmp1\fR, \fBdmq1\fR and \fBiqmp\fR are set correctly or are \fB\s-1NULL\s0\fR. .PP As such, this function can not be used with any arbitrary \s-1RSA\s0 key object, even if it is otherwise fit for regular \s-1RSA\s0 operation. See \fB\s-1NOTES\s0\fR for more information. .SH "RETURN VALUE" .IX Header "RETURN VALUE" \&\fBRSA_check_key()\fR returns 1 if \fBrsa\fR is a valid \s-1RSA\s0 key, and 0 otherwise. \&\-1 is returned if an error occurs while checking the key. .PP If the key is invalid or an error occurred, the reason code can be obtained using \fBERR_get_error\fR\|(3). .SH "NOTES" .IX Header "NOTES" This function does not work on \s-1RSA\s0 public keys that have only the modulus and public exponent elements populated. It performs integrity checks on all the \s-1RSA\s0 key material, so the \s-1RSA\s0 key structure must contain all the private key data too. .PP Unlike most other \s-1RSA\s0 functions, this function does \fBnot\fR work transparently with any underlying \s-1ENGINE\s0 implementation because it uses the key data in the \s-1RSA\s0 structure directly. An \s-1ENGINE\s0 implementation can override the way key data is stored and handled, and can even provide support for \s-1HSM\s0 keys \- in which case the \s-1RSA\s0 structure may contain \fBno\fR key data at all! If the \s-1ENGINE\s0 in question is only being used for acceleration or analysis purposes, then in all likelihood the \s-1RSA\s0 key data is complete and untouched, but this can't be assumed in the general case. .SH "BUGS" .IX Header "BUGS" A method of verifying the \s-1RSA\s0 key using opaque \s-1RSA API\s0 functions might need to be considered. Right now \fBRSA_check_key()\fR simply uses the \s-1RSA\s0 structure elements directly, bypassing the \s-1RSA_METHOD\s0 table altogether (and completely violating encapsulation and object-orientation in the process). The best fix will probably be to introduce a \*(L"\fBcheck_key()\fR\*(R" handler to the \&\s-1RSA_METHOD\s0 function table so that alternative implementations can also provide their own verifiers. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBrsa\fR\|(3), \fBERR_get_error\fR\|(3) .SH "HISTORY" .IX Header "HISTORY" \&\fBRSA_check_key()\fR appeared in OpenSSL 0.9.4.
Kaydet
Vazgeç