diff options
Diffstat (limited to 'secure/lib/libcrypto/man/RSA_private_encrypt.3')
| -rw-r--r-- | secure/lib/libcrypto/man/RSA_private_encrypt.3 | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/RSA_private_encrypt.3 b/secure/lib/libcrypto/man/RSA_private_encrypt.3 new file mode 100644 index 000000000000..8a3a05036177 --- /dev/null +++ b/secure/lib/libcrypto/man/RSA_private_encrypt.3 @@ -0,0 +1,199 @@ +.\" Automatically generated by Pod::Man version 1.15 +.\" Thu May 9 13:18:35 2002 +.\" +.\" Standard preamble: +.\" ====================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Ip \" List item +.br +.ie \\n(.$>=3 .ne \\$3 +.el .ne 3 +.IP "\\$1" \\$2 +.. +.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. | will give a +.\" real vertical bar. \*(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-|\(bv\*(Tr +.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" '' +'br\} +.\" +.\" If the F register is turned on, we'll generate index entries on stderr +.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and +.\" index entries marked with X<> in POD. Of course, you'll have to process +.\" the output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it +.\" makes way too many mistakes in technical documents. +.hy 0 +.if n .na +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. +.bd B 3 +. \" 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_PRIVATE_ENCRYPT 1" +.TH RSA_PRIVATE_ENCRYPT 1 "perl v5.6.1" "2000-04-13" "User Contributed Perl Documentation" +.UC +.SH "NAME" +RSA_private_encrypt, RSA_public_decrypt \- low level signature operations +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/rsa.h> +.Ve +.Vb 2 +\& int RSA_private_encrypt(int flen, unsigned char *from, +\& unsigned char *to, RSA *rsa, int padding); +.Ve +.Vb 2 +\& int RSA_public_decrypt(int flen, unsigned char *from, +\& unsigned char *to, RSA *rsa, int padding); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +These functions handle \s-1RSA\s0 signatures at a low level. +.PP +\&\fIRSA_private_encrypt()\fR signs the \fBflen\fR bytes at \fBfrom\fR (usually a +message digest with an algorithm identifier) using the private key +\&\fBrsa\fR and stores the signature in \fBto\fR. \fBto\fR must point to +\&\fBRSA_size(rsa)\fR bytes of memory. +.PP +\&\fBpadding\fR denotes one of the following modes: +.Ip "\s-1RSA_PKCS1_PADDING\s0" 4 +.IX Item "RSA_PKCS1_PADDING" +\&\s-1PKCS\s0 #1 v1.5 padding. This function does not handle the +\&\fBalgorithmIdentifier\fR specified in \s-1PKCS\s0 #1. When generating or +verifying \s-1PKCS\s0 #1 signatures, RSA_sign(3) and RSA_verify(3) should be +used. +.Ip "\s-1RSA_NO_PADDING\s0" 4 +.IX Item "RSA_NO_PADDING" +Raw \s-1RSA\s0 signature. This mode should \fIonly\fR be used to implement +cryptographically sound padding modes in the application code. +Signing user data directly with \s-1RSA\s0 is insecure. +.PP +\&\fIRSA_public_decrypt()\fR recovers the message digest from the \fBflen\fR +bytes long signature at \fBfrom\fR using the signer's public key +\&\fBrsa\fR. \fBto\fR must point to a memory section large enough to hold the +message digest (which is smaller than \fBRSA_size(rsa) \- +11\fR). \fBpadding\fR is the padding mode that was used to sign the data. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +\&\fIRSA_private_encrypt()\fR returns the size of the signature (i.e., +RSA_size(rsa)). \fIRSA_public_decrypt()\fR returns the size of the +recovered message digest. +.PP +On error, \-1 is returned; the error codes can be +obtained by ERR_get_error(3). +.SH "SEE ALSO" +.IX Header "SEE ALSO" +err(3), rsa(3), RSA_sign(3), RSA_verify(3) +.SH "HISTORY" +.IX Header "HISTORY" +The \fBpadding\fR argument was added in SSLeay 0.8. \s-1RSA_NO_PADDING\s0 is +available since SSLeay 0.9.0. |