48 lines
763 B
C
48 lines
763 B
C
#include <u.h>
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#include <libc.h>
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#include <auth.h>
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#include <mp.h>
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#include <libsec.h>
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#include "rsa2any.h"
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int privatekey = 0;
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void
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usage(void)
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{
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fprint(2, "usage: auth/rsa2asn1 [-a] [file]\n");
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exits("usage");
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}
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void
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main(int argc, char **argv)
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{
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uchar buf[16*1024];
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RSApriv *k;
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int n;
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ARGBEGIN{
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case 'a':
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privatekey = 1;
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break;
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default:
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usage();
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}ARGEND
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if(argc > 1)
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usage();
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if((k = getrsakey(argc, argv, privatekey, nil)) == nil)
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sysfatal("%r");
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if(privatekey){
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if((n = asn1encodeRSApriv(k, buf, sizeof(buf))) < 0)
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sysfatal("asn1encodeRSApriv: %r");
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}else{
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if((n = asn1encodeRSApub(&k->pub, buf, sizeof(buf))) < 0)
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sysfatal("asn1encodeRSApub: %r");
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}
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if(write(1, buf, n) != n)
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sysfatal("write: %r");
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exits(nil);
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}
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