247 lines
9.1 KiB
Groff
247 lines
9.1 KiB
Groff
.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.30)
|
|
.\"
|
|
.\" 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 turned on, 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 "BN_BLINDING_new 3"
|
|
.TH BN_BLINDING_new 3 "2015-06-11" "1.0.1n" "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"
|
|
BN_BLINDING_new, BN_BLINDING_free, BN_BLINDING_update, BN_BLINDING_convert,
|
|
BN_BLINDING_invert, BN_BLINDING_convert_ex, BN_BLINDING_invert_ex,
|
|
BN_BLINDING_get_thread_id, BN_BLINDING_set_thread_id, BN_BLINDING_get_flags,
|
|
BN_BLINDING_set_flags, BN_BLINDING_create_param \- blinding related BIGNUM
|
|
functions.
|
|
.SH "SYNOPSIS"
|
|
.IX Header "SYNOPSIS"
|
|
.Vb 1
|
|
\& #include <openssl/bn.h>
|
|
\&
|
|
\& BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai,
|
|
\& BIGNUM *mod);
|
|
\& void BN_BLINDING_free(BN_BLINDING *b);
|
|
\& int BN_BLINDING_update(BN_BLINDING *b,BN_CTX *ctx);
|
|
\& int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
|
|
\& int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx);
|
|
\& int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b,
|
|
\& BN_CTX *ctx);
|
|
\& int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b,
|
|
\& BN_CTX *ctx);
|
|
\& #ifndef OPENSSL_NO_DEPRECATED
|
|
\& unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *);
|
|
\& void BN_BLINDING_set_thread_id(BN_BLINDING *, unsigned long);
|
|
\& #endif
|
|
\& CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
|
|
\& unsigned long BN_BLINDING_get_flags(const BN_BLINDING *);
|
|
\& void BN_BLINDING_set_flags(BN_BLINDING *, unsigned long);
|
|
\& BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
|
|
\& const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
|
|
\& int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
|
|
\& const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
|
|
\& BN_MONT_CTX *m_ctx);
|
|
.Ve
|
|
.SH "DESCRIPTION"
|
|
.IX Header "DESCRIPTION"
|
|
\&\fIBN_BLINDING_new()\fR allocates a new \fB\s-1BN_BLINDING\s0\fR structure and copies
|
|
the \fBA\fR and \fBAi\fR values into the newly created \fB\s-1BN_BLINDING\s0\fR object.
|
|
.PP
|
|
\&\fIBN_BLINDING_free()\fR frees the \fB\s-1BN_BLINDING\s0\fR structure.
|
|
.PP
|
|
\&\fIBN_BLINDING_update()\fR updates the \fB\s-1BN_BLINDING\s0\fR parameters by squaring
|
|
the \fBA\fR and \fBAi\fR or, after specific number of uses and if the
|
|
necessary parameters are set, by re-creating the blinding parameters.
|
|
.PP
|
|
\&\fIBN_BLINDING_convert_ex()\fR multiplies \fBn\fR with the blinding factor \fBA\fR.
|
|
If \fBr\fR is not \s-1NULL\s0 a copy the inverse blinding factor \fBAi\fR will be
|
|
returned in \fBr\fR (this is useful if a \fB\s-1RSA\s0\fR object is shared among
|
|
several threads). \fIBN_BLINDING_invert_ex()\fR multiplies \fBn\fR with the
|
|
inverse blinding factor \fBAi\fR. If \fBr\fR is not \s-1NULL\s0 it will be used as
|
|
the inverse blinding.
|
|
.PP
|
|
\&\fIBN_BLINDING_convert()\fR and \fIBN_BLINDING_invert()\fR are wrapper
|
|
functions for \fIBN_BLINDING_convert_ex()\fR and \fIBN_BLINDING_invert_ex()\fR
|
|
with \fBr\fR set to \s-1NULL.\s0
|
|
.PP
|
|
\&\fIBN_BLINDING_thread_id()\fR provides access to the \fB\s-1CRYPTO_THREADID\s0\fR
|
|
object within the \fB\s-1BN_BLINDING\s0\fR structure. This is to help users
|
|
provide proper locking if needed for multi-threaded use. The \*(L"thread
|
|
id\*(R" object of a newly allocated \fB\s-1BN_BLINDING\s0\fR structure is
|
|
initialised to the thread id in which \fIBN_BLINDING_new()\fR was called.
|
|
.PP
|
|
\&\fIBN_BLINDING_get_flags()\fR returns the \s-1BN_BLINDING\s0 flags. Currently
|
|
there are two supported flags: \fB\s-1BN_BLINDING_NO_UPDATE\s0\fR and
|
|
\&\fB\s-1BN_BLINDING_NO_RECREATE\s0\fR. \fB\s-1BN_BLINDING_NO_UPDATE\s0\fR inhibits the
|
|
automatic update of the \fB\s-1BN_BLINDING\s0\fR parameters after each use
|
|
and \fB\s-1BN_BLINDING_NO_RECREATE\s0\fR inhibits the automatic re-creation
|
|
of the \fB\s-1BN_BLINDING\s0\fR parameters after a fixed number of uses (currently
|
|
32). In newly allocated \fB\s-1BN_BLINDING\s0\fR objects no flags are set.
|
|
\&\fIBN_BLINDING_set_flags()\fR sets the \fB\s-1BN_BLINDING\s0\fR parameters flags.
|
|
.PP
|
|
\&\fIBN_BLINDING_create_param()\fR creates new \fB\s-1BN_BLINDING\s0\fR parameters
|
|
using the exponent \fBe\fR and the modulus \fBm\fR. \fBbn_mod_exp\fR and
|
|
\&\fBm_ctx\fR can be used to pass special functions for exponentiation
|
|
(normally \fIBN_mod_exp_mont()\fR and \fB\s-1BN_MONT_CTX\s0\fR).
|
|
.SH "RETURN VALUES"
|
|
.IX Header "RETURN VALUES"
|
|
\&\fIBN_BLINDING_new()\fR returns the newly allocated \fB\s-1BN_BLINDING\s0\fR structure
|
|
or \s-1NULL\s0 in case of an error.
|
|
.PP
|
|
\&\fIBN_BLINDING_update()\fR, \fIBN_BLINDING_convert()\fR, \fIBN_BLINDING_invert()\fR,
|
|
\&\fIBN_BLINDING_convert_ex()\fR and \fIBN_BLINDING_invert_ex()\fR return 1 on
|
|
success and 0 if an error occured.
|
|
.PP
|
|
\&\fIBN_BLINDING_thread_id()\fR returns a pointer to the thread id object
|
|
within a \fB\s-1BN_BLINDING\s0\fR object.
|
|
.PP
|
|
\&\fIBN_BLINDING_get_flags()\fR returns the currently set \fB\s-1BN_BLINDING\s0\fR flags
|
|
(a \fBunsigned long\fR value).
|
|
.PP
|
|
\&\fIBN_BLINDING_create_param()\fR returns the newly created \fB\s-1BN_BLINDING\s0\fR
|
|
parameters or \s-1NULL\s0 on error.
|
|
.SH "SEE ALSO"
|
|
.IX Header "SEE ALSO"
|
|
\&\fIbn\fR\|(3)
|
|
.SH "HISTORY"
|
|
.IX Header "HISTORY"
|
|
BN_BLINDING_thread_id was first introduced in OpenSSL 1.0.0, and it
|
|
deprecates BN_BLINDING_set_thread_id and BN_BLINDING_get_thread_id.
|
|
.PP
|
|
BN_BLINDING_convert_ex, BN_BLINDIND_invert_ex, BN_BLINDING_get_thread_id,
|
|
BN_BLINDING_set_thread_id, BN_BLINDING_set_flags, BN_BLINDING_get_flags
|
|
and BN_BLINDING_create_param were first introduced in OpenSSL 0.9.8
|
|
.SH "AUTHOR"
|
|
.IX Header "AUTHOR"
|
|
Nils Larsch for the OpenSSL project (http://www.openssl.org).
|