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rsa2jwk: remove it -- we ship it with the system now

--- a/rsa2jwk.c

+++ /dev/null

@@ -1,87 +1,0 @@

-#include <u.h>

-#include <libc.h>

-#include <auth.h>

-#include <mp.h>

-#include <libsec.h>

-#include "rsa2any.h"

-

-#define between(x,min,max)	(((min-1-x) & (x-max-1))>>8)

-

-int

-encurl64chr(int o)

-{

-	int c;

-

-	c  = between(o,  0, 25) & ('A'+o);

-	c |= between(o, 26, 51) & ('a'+(o-26));

-	c |= between(o, 52, 61) & ('0'+(o-52));

-	c |= between(o, 62, 62) & ('-');

-	c |= between(o, 63, 63) & ('_');

-	return c;

-}

-

-char*

-encurl64(void *in, int n)

-{

-	int lim;

-	char *out, *p;

-

-	lim = 4*n/3 + 5;

-	if((out = malloc(lim)) == nil)

-		sysfatal("malloc: %r");

-	enc64x(out, lim, in, n, encurl64chr);

-	if((p = strchr(out, '=')) != nil)

-		*p = 0;

-	return out;

-}

-

-void

-usage(void)

-{

-	fprint(2, "usage: auth/rsa2pub [file]\n");

-	exits("usage");

-}

-

-void

-main(int argc, char **argv)

-{

-	uchar nbuf[8192], ebuf[512];

-	char *nstr, *estr;

-	RSApriv *k;

-	int nlen, elen;

-

-	fmtinstall('[', encodefmt);

-	quotefmtinstall();

-

-	ARGBEGIN{

-	default:

-		usage();

-	}ARGEND

-

-	if(argc > 1)

-		usage();

-

-	if((k = getrsakey(argc, argv, 0, nil)) == nil)

-		sysfatal("%r");

-

-	nlen = (mpsignif(k->pub.n)+7)/8;

-	if(nlen >= sizeof(nbuf))

-		sysfatal("key too big");

-	mptobe(k->pub.n, nbuf, nlen, nil);

-	nstr = encurl64(nbuf, nlen);

-

-	elen = (mpsignif(k->pub.ek)+7)/8;

-	if(elen >= sizeof(ebuf))

-		sysfatal("key too big");

-	mptobe(k->pub.ek, ebuf, elen, nil);

-	estr = encurl64(ebuf, elen);

-

-	print(

-		"{"

-		"\"kty\": \"RSA\","

-		"\"n\": \"%s\","

-		"\"e\": \"%s\""

-		"}\n",

-		nstr, estr);

-	exits(nil);

-}