#ifndef RSACRT_H
#define RSACRT_H
+#include <utility>
+#include <exception>
+
#include <gmpxx.h>
+#include "Rsa.h"
+
class RsaCrt
{
public:
- RsaCrt();
-
- struct KeyPrivCRT {
+ struct KeyPriv {
mpz_class p;
mpz_class q;
mpz_class dp;
mpz_class dq;
mpz_class qInv;
};
+
+ /**
+ * Generate a pair of keys (public, private).
+ */
+ static std::pair<Rsa::KeyPub, KeyPriv> generateRSAKeys(uint exponent, uint keySizeBits);
+
+ /**
+ * m must not be greater or equal than kPriv.n.
+ * @param m the message to sign. No padding is used.
+ */
+ static mpz_class sign(const mpz_class& m, const KeyPriv& kPriv);
+
+ /**
+ * Sp is altered by flipping its 42nd bit.
+ * @param m the message to sign. No padding is used.
+ */
+ static mpz_class signWithFaultySp(const mpz_class& m, const KeyPriv& kPriv);
+
+private:
+ static mpz_class sign(const mpz_class& m, const KeyPriv& kPriv, bool withError);
};
#endif