D7net
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
opt
/
lampp
/
share
/
openssl
/
man
/
man3
/
Filename :
RSA_padding_add_SSLv23.3
back
Copy
.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 .\" .\" 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 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. . \" 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_padding_add_PKCS1_type_1 3" .TH RSA_padding_add_PKCS1_type_1 3 "2017-05-25" "1.0.2l" "OpenSSL" .SH "NAME" RSA_padding_add_PKCS1_type_1, RSA_padding_check_PKCS1_type_1, RSA_padding_add_PKCS1_type_2, RSA_padding_check_PKCS1_type_2, RSA_padding_add_PKCS1_OAEP, RSA_padding_check_PKCS1_OAEP, RSA_padding_add_SSLv23, RSA_padding_check_SSLv23, RSA_padding_add_none, RSA_padding_check_none \- asymmetric encryption padding .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/rsa.h> .Ve .PP .Vb 2 \& int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen, \& unsigned char *f, int fl); .Ve .PP .Vb 2 \& int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen, \& unsigned char *f, int fl, int rsa_len); .Ve .PP .Vb 2 \& int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen, \& unsigned char *f, int fl); .Ve .PP .Vb 2 \& int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen, \& unsigned char *f, int fl, int rsa_len); .Ve .PP .Vb 2 \& int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen, \& unsigned char *f, int fl, unsigned char *p, int pl); .Ve .PP .Vb 2 \& int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen, \& unsigned char *f, int fl, int rsa_len, unsigned char *p, int pl); .Ve .PP .Vb 2 \& int RSA_padding_add_SSLv23(unsigned char *to, int tlen, \& unsigned char *f, int fl); .Ve .PP .Vb 2 \& int RSA_padding_check_SSLv23(unsigned char *to, int tlen, \& unsigned char *f, int fl, int rsa_len); .Ve .PP .Vb 2 \& int RSA_padding_add_none(unsigned char *to, int tlen, \& unsigned char *f, int fl); .Ve .PP .Vb 2 \& int RSA_padding_check_none(unsigned char *to, int tlen, \& unsigned char *f, int fl, int rsa_len); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fIRSA_padding_xxx_xxx()\fR functions are called from the \s-1RSA\s0 encrypt, decrypt, sign and verify functions. Normally they should not be called from application programs. .PP However, they can also be called directly to implement padding for other asymmetric ciphers. \fIRSA_padding_add_PKCS1_OAEP()\fR and \&\fIRSA_padding_check_PKCS1_OAEP()\fR may be used in an application combined with \fB\s-1RSA_NO_PADDING\s0\fR in order to implement \s-1OAEP\s0 with an encoding parameter. .PP \&\fIRSA_padding_add_xxx()\fR encodes \fBfl\fR bytes from \fBf\fR so as to fit into \&\fBtlen\fR bytes and stores the result at \fBto\fR. An error occurs if \fBfl\fR does not meet the size requirements of the encoding method. .PP The following encoding methods are implemented: .IP "PKCS1_type_1" 4 .IX Item "PKCS1_type_1" \&\s-1PKCS\s0 #1 v2.0 EMSA\-PKCS1\-v1_5 (\s-1PKCS\s0 #1 v1.5 block type 1); used for signatures .IP "PKCS1_type_2" 4 .IX Item "PKCS1_type_2" \&\s-1PKCS\s0 #1 v2.0 EME\-PKCS1\-v1_5 (\s-1PKCS\s0 #1 v1.5 block type 2) .IP "\s-1PKCS1_OAEP\s0" 4 .IX Item "PKCS1_OAEP" \&\s-1PKCS\s0 #1 v2.0 EME-OAEP .IP "SSLv23" 4 .IX Item "SSLv23" \&\s-1PKCS\s0 #1 EME\-PKCS1\-v1_5 with SSL-specific modification .IP "none" 4 .IX Item "none" simply copy the data .PP The random number generator must be seeded prior to calling \&\fIRSA_padding_add_xxx()\fR. .PP \&\fIRSA_padding_check_xxx()\fR verifies that the \fBfl\fR bytes at \fBf\fR contain a valid encoding for a \fBrsa_len\fR byte \s-1RSA\s0 key in the respective encoding method and stores the recovered data of at most \fBtlen\fR bytes (for \fB\s-1RSA_NO_PADDING\s0\fR: of size \fBtlen\fR) at \fBto\fR. .PP For \fIRSA_padding_xxx_OAEP()\fR, \fBp\fR points to the encoding parameter of length \fBpl\fR. \fBp\fR may be \fB\s-1NULL\s0\fR if \fBpl\fR is 0. .SH "RETURN VALUES" .IX Header "RETURN VALUES" The \fIRSA_padding_add_xxx()\fR functions return 1 on success, 0 on error. The \fIRSA_padding_check_xxx()\fR functions return the length of the recovered data, \-1 on error. Error codes can be obtained by calling \&\fIERR_get_error\fR\|(3). .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fIRSA_public_encrypt\fR\|(3), \&\fIRSA_private_decrypt\fR\|(3), \&\fIRSA_sign\fR\|(3), \fIRSA_verify\fR\|(3) .SH "HISTORY" .IX Header "HISTORY" \&\fIRSA_padding_add_PKCS1_type_1()\fR, \fIRSA_padding_check_PKCS1_type_1()\fR, \&\fIRSA_padding_add_PKCS1_type_2()\fR, \fIRSA_padding_check_PKCS1_type_2()\fR, \&\fIRSA_padding_add_SSLv23()\fR, \fIRSA_padding_check_SSLv23()\fR, \&\fIRSA_padding_add_none()\fR and \fIRSA_padding_check_none()\fR appeared in SSLeay 0.9.0. .PP \&\fIRSA_padding_add_PKCS1_OAEP()\fR and \fIRSA_padding_check_PKCS1_OAEP()\fR were added in OpenSSL 0.9.2b.