a

libsec/egtest.c

@@ -0,0 +1,34 @@
+#include "os.h"
+#include <mp.h>
+#include <libsec.h>
+
+void
+main(void)
+{
+	EGpriv *sk;
+	mpint *m, *gamma, *delta, *in, *out;
+	int plen, shift;
+
+	fmtinstall('B', mpconv);
+
+	sk = egprivalloc();
+	sk->pub.p = uitomp(2357, nil);
+	sk->pub.alpha = uitomp(2, nil);
+	sk->pub.key = uitomp(1185, nil);
+	sk->secret = uitomp(1751, nil);
+
+	m = uitomp(2035, nil);
+
+	plen = mpsignif(sk->pub.p)+1;
+	shift = ((plen+Dbits-1)/Dbits)*Dbits;
+	gamma = uitomp(1430, nil);
+	delta = uitomp(697, nil);
+	out = mpnew(0);
+	in = mpnew(0);
+	mpleft(gamma, shift, in);
+	mpadd(delta, in, in);
+	egdecrypt(sk, in, out);
+
+	if(mpcmp(m, out) != 0)
+		print("decrypt failed to recover message\n");
+}