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@ -18,10 +18,12 @@ namespace crypto
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{
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public:
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ElGamalEncryption (const uint8_t * key):
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y (key, 256), k (rnd, CryptoPP::Integer::One(), elgp-1),
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a (a_exp_b_mod_c (elgg, k, elgp)), b1 (a_exp_b_mod_c (y, k, elgp))
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ElGamalEncryption (const uint8_t * key)
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{
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CryptoPP::AutoSeededRandomPool rnd;
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CryptoPP::Integer y (key, 256), k (rnd, CryptoPP::Integer::One(), elgp-1);
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a = a_exp_b_mod_c (elgg, k, elgp);
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b1 = a_exp_b_mod_c (y, k, elgp);
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}
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void Encrypt (const uint8_t * data, int len, uint8_t * encrypted, bool zeroPadding = false)
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@ -50,8 +52,7 @@ namespace crypto
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private:
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CryptoPP::AutoSeededRandomPool rnd;
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CryptoPP::Integer y, k, a, b1;
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CryptoPP::Integer a, b1;
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};
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inline bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted,
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