Commit manual pages after running 'man-update' and add new manual pages.
[dragonfly.git] / secure / lib / libcrypto / man / BN_new.3
CommitLineData
74dab6c2
JR
1.rn '' }`
2''' $RCSfile$$Revision$$Date$
3'''
4''' $Log$
5'''
6.de Sh
984263bc
MD
7.br
8.if t .Sp
9.ne 5
10.PP
11\fB\\$1\fR
12.PP
13..
74dab6c2 14.de Sp
984263bc
MD
15.if t .sp .5v
16.if n .sp
17..
74dab6c2 18.de Ip
984263bc
MD
19.br
20.ie \\n(.$>=3 .ne \\$3
21.el .ne 3
22.IP "\\$1" \\$2
23..
74dab6c2 24.de Vb
984263bc
MD
25.ft CW
26.nf
27.ne \\$1
28..
74dab6c2 29.de Ve
984263bc
MD
30.ft R
31
32.fi
33..
74dab6c2
JR
34'''
35'''
36''' Set up \*(-- to give an unbreakable dash;
37''' string Tr holds user defined translation string.
38''' Bell System Logo is used as a dummy character.
39'''
984263bc 40.tr \(*W-|\(bv\*(Tr
984263bc 41.ie n \{\
74dab6c2
JR
42.ds -- \(*W-
43.ds PI pi
44.if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
45.if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
46.ds L" ""
47.ds R" ""
48''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of
49''' \*(L" and \*(R", except that they are used on ".xx" lines,
50''' such as .IP and .SH, which do another additional levels of
51''' double-quote interpretation
52.ds M" """
53.ds S" """
54.ds N" """""
55.ds T" """""
56.ds L' '
57.ds R' '
58.ds M' '
59.ds S' '
60.ds N' '
61.ds T' '
984263bc
MD
62'br\}
63.el\{\
74dab6c2
JR
64.ds -- \(em\|
65.tr \*(Tr
66.ds L" ``
67.ds R" ''
68.ds M" ``
69.ds S" ''
70.ds N" ``
71.ds T" ''
72.ds L' `
73.ds R' '
74.ds M' `
75.ds S' '
76.ds N' `
77.ds T' '
78.ds PI \(*p
984263bc 79'br\}
74dab6c2
JR
80.\" If the F register is turned on, we'll generate
81.\" index entries out stderr for the following things:
82.\" TH Title
83.\" SH Header
84.\" Sh Subsection
85.\" Ip Item
86.\" X<> Xref (embedded
87.\" Of course, you have to process the output yourself
88.\" in some meaninful fashion.
89.if \nF \{
90.de IX
91.tm Index:\\$1\t\\n%\t"\\$2"
984263bc 92..
74dab6c2
JR
93.nr % 0
94.rr F
984263bc 95.\}
74dab6c2
JR
96.TH BN_new 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
97.UC
98.if n .hy 0
984263bc 99.if n .na
74dab6c2
JR
100.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
101.de CQ \" put $1 in typewriter font
102.ft CW
103'if n "\c
104'if t \\&\\$1\c
105'if n \\&\\$1\c
106'if n \&"
107\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7
108'.ft R
109..
110.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
111. \" AM - accent mark definitions
984263bc 112.bd B 3
74dab6c2 113. \" fudge factors for nroff and troff
984263bc 114.if n \{\
74dab6c2
JR
115. ds #H 0
116. ds #V .8m
117. ds #F .3m
118. ds #[ \f1
119. ds #] \fP
984263bc
MD
120.\}
121.if t \{\
74dab6c2
JR
122. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
123. ds #V .6m
124. ds #F 0
125. ds #[ \&
126. ds #] \&
984263bc 127.\}
74dab6c2 128. \" simple accents for nroff and troff
984263bc 129.if n \{\
74dab6c2
JR
130. ds ' \&
131. ds ` \&
132. ds ^ \&
133. ds , \&
134. ds ~ ~
135. ds ? ?
136. ds ! !
137. ds /
138. ds q
984263bc
MD
139.\}
140.if t \{\
74dab6c2
JR
141. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
142. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
143. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
144. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
145. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
146. ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10'
147. ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m'
148. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
149. ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10'
984263bc 150.\}
74dab6c2 151. \" troff and (daisy-wheel) nroff accents
984263bc
MD
152.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
153.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
74dab6c2
JR
154.ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#]
155.ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u'
156.ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u'
157.ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#]
984263bc
MD
158.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
159.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
160.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
161.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
162.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
163.ds ae a\h'-(\w'a'u*4/10)'e
164.ds Ae A\h'-(\w'A'u*4/10)'E
74dab6c2
JR
165.ds oe o\h'-(\w'o'u*4/10)'e
166.ds Oe O\h'-(\w'O'u*4/10)'E
167. \" corrections for vroff
984263bc
MD
168.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
169.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
74dab6c2 170. \" for low resolution devices (crt and lpr)
984263bc
MD
171.if \n(.H>23 .if \n(.V>19 \
172\{\
74dab6c2
JR
173. ds : e
174. ds 8 ss
175. ds v \h'-1'\o'\(aa\(ga'
176. ds _ \h'-1'^
177. ds . \h'-1'.
178. ds 3 3
179. ds o a
180. ds d- d\h'-1'\(ga
181. ds D- D\h'-1'\(hy
182. ds th \o'bp'
183. ds Th \o'LP'
184. ds ae ae
185. ds Ae AE
186. ds oe oe
187. ds Oe OE
984263bc
MD
188.\}
189.rm #[ #] #H #V #F C
984263bc
MD
190.SH "NAME"
191BN_new, BN_init, BN_clear, BN_free, BN_clear_free \- allocate and free BIGNUMs
192.SH "SYNOPSIS"
74dab6c2 193.PP
984263bc
MD
194.Vb 1
195\& #include <openssl/bn.h>
196.Ve
197.Vb 1
198\& BIGNUM *BN_new(void);
199.Ve
200.Vb 1
201\& void BN_init(BIGNUM *);
202.Ve
203.Vb 1
204\& void BN_clear(BIGNUM *a);
205.Ve
206.Vb 1
207\& void BN_free(BIGNUM *a);
208.Ve
209.Vb 1
210\& void BN_clear_free(BIGNUM *a);
211.Ve
212.SH "DESCRIPTION"
74dab6c2
JR
213\fIBN_new()\fR allocated and initializes a \fBBIGNUM\fR structure. \fIBN_init()\fR
214initializes an existing uninitialized \fBBIGNUM\fR.
984263bc 215.PP
74dab6c2 216\fIBN_clear()\fR is used to destroy sensitive data such as keys when they
984263bc
MD
217are no longer needed. It erases the memory used by \fBa\fR and sets it
218to the value 0.
219.PP
74dab6c2 220\fIBN_free()\fR frees the components of the \fBBIGNUM\fR, and if it was created
984263bc
MD
221by \fIBN_new()\fR, also the structure itself. \fIBN_clear_free()\fR additionally
222overwrites the data before the memory is returned to the system.
223.SH "RETURN VALUES"
74dab6c2
JR
224\fIBN_new()\fR returns a pointer to the \fBBIGNUM\fR. If the allocation fails,
225it returns \fBNULL\fR and sets an error code that can be obtained
984263bc
MD
226by ERR_get_error(3).
227.PP
74dab6c2 228\fIBN_init()\fR, \fIBN_clear()\fR, \fIBN_free()\fR and \fIBN_clear_free()\fR have no return
984263bc
MD
229values.
230.SH "SEE ALSO"
984263bc
MD
231bn(3), ERR_get_error(3)
232.SH "HISTORY"
74dab6c2 233\fIBN_new()\fR, \fIBN_clear()\fR, \fIBN_free()\fR and \fIBN_clear_free()\fR are available in
984263bc
MD
234all versions on SSLeay and OpenSSL. \fIBN_init()\fR was added in SSLeay
2350.9.1b.
74dab6c2
JR
236
237.rn }` ''
238.IX Title "BN_new 3"
239.IX Name "BN_new, BN_init, BN_clear, BN_free, BN_clear_free - allocate and free BIGNUMs"
240
241.IX Header "NAME"
242
243.IX Header "SYNOPSIS"
244
245.IX Header "DESCRIPTION"
246
247.IX Header "RETURN VALUES"
248
249.IX Header "SEE ALSO"
250
251.IX Header "HISTORY"
252