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diff --git a/man/man3/dsa.html b/man/man3/dsa.html new file mode 100644 index 00000000..765ddd7c --- /dev/null +++ b/man/man3/dsa.html @@ -0,0 +1,172 @@ +<head> +<title>dsa(3) - Plan 9 from User Space</title> +<meta content="text/html; charset=utf-8" http-equiv=Content-Type> +</head> +<body bgcolor=#ffffff> +<table border=0 cellpadding=0 cellspacing=0 width=100%> +<tr height=10><td> +<tr><td width=20><td> +<tr><td width=20><td><b>DSA(3)</b><td align=right><b>DSA(3)</b> +<tr><td width=20><td colspan=2> + <br> +<p><font size=+1><b>NAME </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + dsagen, dsasign, dsaverify, dsapuballoc, dsapubfree, dsaprivalloc, + dsaprivfree, dsasigalloc, dsasigfree, dsaprivtopub - digital signature + algorithm<br> + +</table> +<p><font size=+1><b>SYNOPSIS </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>#include <u.h><br> + #include <libc.h><br> + #include <mp.h><br> + #include <libsec.h> + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSApriv* dsagen(DSApub *opub) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSAsig* dsasign(DSApriv *k, mpint *m) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>int dsaverify(DSApub *k, DSAsig *sig, mpint *m) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSApub* dsapuballoc(void) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>void dsapubfree(DSApub*) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSApriv* dsaprivalloc(void) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>void dsaprivfree(DSApriv*) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSAsig* dsasigalloc(void) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>void dsasigfree(DSAsig*) + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + <tt><font size=+1>DSApub* dsaprivtopub(DSApriv*)<br> + </font></tt> +</table> +<p><font size=+1><b>DESCRIPTION </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + DSA is the NIST approved digital signature algorithm. The owner + of a key publishes the public part of the key:<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>struct DSApub<br> + {<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + mpint *p; // modulus<br> + mpint *q; // group order, q divides p−1<br> + mpint *alpha; // group generator<br> + mpint *key; // alpha**secret mod p<br> + + </table> + };<br> + </font></tt> + </table> + This part can be used for verifying signatures (with <i>dsaverify</i>) + created by the owner. The owner signs (with <i>dsasign</i>) using his + private key:<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>struct DSApriv<br> + {<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + DSApub pub;<br> + mpint *secret; // (decryption key)<br> + + </table> + };<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + </font></tt> + + </table> + Keys are generated using <i>dsagen</i>. If <i>dsagen</i>’s argument <i>opub</i> is + <tt><font size=+1>nil</font></tt>, a key is created using a new <tt><font size=+1>p</font></tt> and <tt><font size=+1>q</font></tt> generated by <i>DSAprimes</i> + (see <a href="../man3/prime.html"><i>prime</i>(3)</a>). Otherwise, <tt><font size=+1>p</font></tt> and <tt><font size=+1>q</font></tt> are copied from the old key. + + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Dsaprivtopub</i> returns a newly allocated copy of the public key + corresponding to the private key. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + The routines <i>dsapuballoc</i>, <i>dsapubfree</i>, <i>dsaprivalloc</i>, and <i>dsaprivfree</i> + are provided to manage key storage. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + <i>Dsasign</i> signs message <i>m</i> using a private key <i>k</i> yielding a<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>struct DSAsig<br> + {<br> + + <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + mpint *r, *s;<br> + + </table> + };<br> + </font></tt> + </table> + <i>Dsaverify</i> returns 0 if the signature is valid and –1 if not. + <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table> + + The routines <i>dsasigalloc</i> and <i>dsasigfree</i> are provided to manage + signature storage.<br> + +</table> +<p><font size=+1><b>SOURCE </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <tt><font size=+1>/usr/local/plan9/src/libsec<br> + </font></tt> +</table> +<p><font size=+1><b>SEE ALSO </b></font><br> + +<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td> + + <a href="../man3/mp.html"><i>mp</i>(3)</a>, <a href="../man3/aes.html"><i>aes</i>(3)</a>, <a href="../man3/blowfish.html"><i>blowfish</i>(3)</a>, <a href="../man3/des.html"><i>des</i>(3)</a>, <a href="../man3/rc4.html"><i>rc4</i>(3)</a>, <a href="../man3/rsa.html"><i>rsa</i>(3)</a>, <a href="../man3/sechash.html"><i>sechash</i>(3)</a>, + <a href="../man3/prime.html"><i>prime</i>(3)</a>, <a href="../man3/rand.html"><i>rand</i>(3)</a><br> + +</table> + +<td width=20> +<tr height=20><td> +</table> +<!-- TRAILER --> +<table border=0 cellpadding=0 cellspacing=0 width=100%> +<tr height=15><td width=10><td><td width=10> +<tr><td><td> +<center> +<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a> +</center> +</table> +<!-- TRAILER --> +</body></html> |