| DSA_do_sign.3 (206048) | DSA_do_sign.3 (215698) |
|---|---|
| 1.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.37 | 1.\" Automatically generated by Pod::Man 2.22 (Pod::Simple 3.07) |
| 2.\" 3.\" Standard preamble: 4.\" ======================================================================== | 2.\" 3.\" Standard preamble: 4.\" ======================================================================== |
| 5.de Sh \" Subsection heading 6.br 7.if t .Sp 8.ne 5 9.PP 10\fB\\$1\fR 11.PP 12.. | |
| 13.de Sp \" Vertical space (when we can't use .PP) 14.if t .sp .5v 15.if n .sp 16.. 17.de Vb \" Begin verbatim text 18.ft CW 19.nf 20.ne \\$1 21.. 22.de Ve \" End verbatim text 23.ft R 24.fi 25.. 26.\" Set up some character translations and predefined strings. \*(-- will 27.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left | 5.de Sp \" Vertical space (when we can't use .PP) 6.if t .sp .5v 7.if n .sp 8.. 9.de Vb \" Begin verbatim text 10.ft CW 11.nf 12.ne \\$1 13.. 14.de Ve \" End verbatim text 15.ft R 16.fi 17.. 18.\" Set up some character translations and predefined strings. \*(-- will 19.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left |
| 28.\" double quote, and \*(R" will give a right double quote. | will give a 29.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to 30.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C' 31.\" expand to `' in nroff, nothing in troff, for use with C<>. 32.tr \(*W-|\(bv\*(Tr | 20.\" double quote, and \*(R" will give a right double quote. \*(C+ will 21.\" give a nicer C++. Capital omega is used to do unbreakable dashes and 22.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, 23.\" nothing in troff, for use with C<>. 24.tr \(*W- |
| 33.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' 34.ie n \{\ 35. ds -- \(*W- 36. ds PI pi 37. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch 38. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch 39. ds L" "" 40. ds R" "" 41. ds C` "" 42. ds C' "" 43'br\} 44.el\{\ 45. ds -- \|\(em\| 46. ds PI \(*p 47. ds L" `` 48. ds R" '' 49'br\} 50.\" | 25.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' 26.ie n \{\ 27. ds -- \(*W- 28. ds PI pi 29. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch 30. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch 31. ds L" "" 32. ds R" "" 33. ds C` "" 34. ds C' "" 35'br\} 36.el\{\ 37. ds -- \|\(em\| 38. ds PI \(*p 39. ds L" `` 40. ds R" '' 41'br\} 42.\" |
| 43.\" Escape single quotes in literal strings from groff's Unicode transform. 44.ie \n(.g .ds Aq \(aq 45.el .ds Aq ' 46.\" |
|
| 51.\" If the F register is turned on, we'll generate index entries on stderr for | 47.\" If the F register is turned on, we'll generate index entries on stderr for |
| 52.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index | 48.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index |
| 53.\" entries marked with X<> in POD. Of course, you'll have to process the 54.\" output yourself in some meaningful fashion. | 49.\" entries marked with X<> in POD. Of course, you'll have to process the 50.\" output yourself in some meaningful fashion. |
| 55.if \nF \{\ | 51.ie \nF \{\ |
| 56. de IX 57. tm Index:\\$1\t\\n%\t"\\$2" 58.. 59. nr % 0 60. rr F 61.\} | 52. de IX 53. tm Index:\\$1\t\\n%\t"\\$2" 54.. 55. nr % 0 56. rr F 57.\} |
| 58.el \{\ 59. de IX 60.. 61.\} |
|
| 62.\" | 62.\" |
| 63.\" For nroff, turn off justification. Always turn off hyphenation; it makes 64.\" way too many mistakes in technical documents. 65.hy 0 66.if n .na 67.\" | |
| 68.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). 69.\" Fear. Run. Save yourself. No user-serviceable parts. 70. \" fudge factors for nroff and troff 71.if n \{\ 72. ds #H 0 73. ds #V .8m 74. ds #F .3m 75. ds #[ \f1 --- 48 unchanged lines hidden (view full) --- 124. ds Th \o'LP' 125. ds ae ae 126. ds Ae AE 127.\} 128.rm #[ #] #H #V #F C 129.\" ======================================================================== 130.\" 131.IX Title "DSA_do_sign 3" | 63.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). 64.\" Fear. Run. Save yourself. No user-serviceable parts. 65. \" fudge factors for nroff and troff 66.if n \{\ 67. ds #H 0 68. ds #V .8m 69. ds #F .3m 70. ds #[ \f1 --- 48 unchanged lines hidden (view full) --- 119. ds Th \o'LP' 120. ds ae ae 121. ds Ae AE 122.\} 123.rm #[ #] #H #V #F C 124.\" ======================================================================== 125.\" 126.IX Title "DSA_do_sign 3" |
| 132.TH DSA_do_sign 3 "2010-03-24" "0.9.8n" "OpenSSL" | 127.TH DSA_do_sign 3 "2010-11-16" "0.9.8p" "OpenSSL" 128.\" For nroff, turn off justification. Always turn off hyphenation; it makes 129.\" way too many mistakes in technical documents. 130.if n .ad l 131.nh |
| 133.SH "NAME" 134DSA_do_sign, DSA_do_verify \- raw DSA signature operations 135.SH "SYNOPSIS" 136.IX Header "SYNOPSIS" 137.Vb 1 138\& #include <openssl/dsa.h> | 132.SH "NAME" 133DSA_do_sign, DSA_do_verify \- raw DSA signature operations 134.SH "SYNOPSIS" 135.IX Header "SYNOPSIS" 136.Vb 1 137\& #include <openssl/dsa.h> |
| 139.Ve 140.PP 141.Vb 1 | 138\& |
| 142\& DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa); | 139\& DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa); |
| 143.Ve 144.PP 145.Vb 2 | 140\& |
| 146\& int DSA_do_verify(const unsigned char *dgst, int dgst_len, 147\& DSA_SIG *sig, DSA *dsa); 148.Ve 149.SH "DESCRIPTION" 150.IX Header "DESCRIPTION" 151\&\fIDSA_do_sign()\fR computes a digital signature on the \fBlen\fR byte message 152digest \fBdgst\fR using the private key \fBdsa\fR and returns it in a 153newly allocated \fB\s-1DSA_SIG\s0\fR structure. 154.PP 155\&\fIDSA_sign_setup\fR\|(3) may be used to precompute part 156of the signing operation in case signature generation is | 141\& int DSA_do_verify(const unsigned char *dgst, int dgst_len, 142\& DSA_SIG *sig, DSA *dsa); 143.Ve 144.SH "DESCRIPTION" 145.IX Header "DESCRIPTION" 146\&\fIDSA_do_sign()\fR computes a digital signature on the \fBlen\fR byte message 147digest \fBdgst\fR using the private key \fBdsa\fR and returns it in a 148newly allocated \fB\s-1DSA_SIG\s0\fR structure. 149.PP 150\&\fIDSA_sign_setup\fR\|(3) may be used to precompute part 151of the signing operation in case signature generation is |
| 157time\-critical. | 152time-critical. |
| 158.PP 159\&\fIDSA_do_verify()\fR verifies that the signature \fBsig\fR matches a given 160message digest \fBdgst\fR of size \fBlen\fR. \fBdsa\fR is the signer's public 161key. 162.SH "RETURN VALUES" 163.IX Header "RETURN VALUES" 164\&\fIDSA_do_sign()\fR returns the signature, \s-1NULL\s0 on error. \fIDSA_do_verify()\fR 165returns 1 for a valid signature, 0 for an incorrect signature and \-1 166on error. The error codes can be obtained by 167\&\fIERR_get_error\fR\|(3). 168.SH "SEE ALSO" 169.IX Header "SEE ALSO" 170\&\fIdsa\fR\|(3), \fIERR_get_error\fR\|(3), \fIrand\fR\|(3), 171\&\fIDSA_SIG_new\fR\|(3), 172\&\fIDSA_sign\fR\|(3) 173.SH "HISTORY" 174.IX Header "HISTORY" 175\&\fIDSA_do_sign()\fR and \fIDSA_do_verify()\fR were added in OpenSSL 0.9.3. | 153.PP 154\&\fIDSA_do_verify()\fR verifies that the signature \fBsig\fR matches a given 155message digest \fBdgst\fR of size \fBlen\fR. \fBdsa\fR is the signer's public 156key. 157.SH "RETURN VALUES" 158.IX Header "RETURN VALUES" 159\&\fIDSA_do_sign()\fR returns the signature, \s-1NULL\s0 on error. \fIDSA_do_verify()\fR 160returns 1 for a valid signature, 0 for an incorrect signature and \-1 161on error. The error codes can be obtained by 162\&\fIERR_get_error\fR\|(3). 163.SH "SEE ALSO" 164.IX Header "SEE ALSO" 165\&\fIdsa\fR\|(3), \fIERR_get_error\fR\|(3), \fIrand\fR\|(3), 166\&\fIDSA_SIG_new\fR\|(3), 167\&\fIDSA_sign\fR\|(3) 168.SH "HISTORY" 169.IX Header "HISTORY" 170\&\fIDSA_do_sign()\fR and \fIDSA_do_verify()\fR were added in OpenSSL 0.9.3. |