moved why2_chat_rsa_pub_encrypt body into exp_mod
so in next commit, which will be decryption, I won't kms
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@ -76,6 +76,30 @@ void read_file(FILE *file, char **output)
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*output = buffer;
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}
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char *exp_mod(long to_encrypt, char *exponent)
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{
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//VARIABLES
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char *output;
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mpz_t m, c, n, e;
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mpz_init(c);
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//GET ALL STUFF
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mpz_init_set_si(m, to_encrypt);
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mpz_init_set_str(n, why2_get_chat_modulus(), WHY2_CHAT_KEY_BASE);
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mpz_init_set_str(e, exponent, 10);
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//ENCRYPT MESSAGE
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mpz_powm(c, m, e, n);
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output = why2_malloc(mpz_sizeinbase(c, WHY2_CHAT_KEY_BASE) + 2); //ALLOCATE OUTPUT
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mpz_get_str(output, WHY2_CHAT_KEY_BASE, c); //GET OUTPUT
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//DEALLOCATION
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mpz_clears(m, c, n, e, NULL);
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return output;
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}
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//GLOBAL
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void why2_chat_init_keys(void)
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{
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@ -172,24 +196,5 @@ char *why2_get_chat_d(void)
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char *why2_chat_rsa_pub_encrypt(long to_encrypt)
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{
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//VARIABLES
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char *output;
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mpz_t m, c, n, e;
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mpz_init(c);
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//GET ALL STUFF
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mpz_init_set_si(m, to_encrypt);
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mpz_init_set_str(n, why2_get_chat_modulus(), WHY2_CHAT_KEY_BASE);
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mpz_init_set_si(e, WHY2_CHAT_RSA_EXPONENT);
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//ENCRYPT MESSAGE
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mpz_powm(c, m, e, n);
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output = why2_malloc(mpz_sizeinbase(c, WHY2_CHAT_KEY_BASE) + 2); //ALLOCATE OUTPUT
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mpz_get_str(output, WHY2_CHAT_KEY_BASE, c); //GET OUTPUT
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//DEALLOCATION
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mpz_clears(m, c, n, e, NULL);
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return output;
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return exp_mod(to_encrypt, WHY2_CHAT_RSA_EXPONENT);
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}
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