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Hi,
I create a key pair using libgcrypt library:

gcry_ac_open (&handle, GCRY_AC_RSA, 0);
gcry_ac_key_pair_generate (handle, key_len, NULL, &key_pair, NULL);

then I extract public and private key:

key_sec = gcry_ac_key_pair_extract (key_pair, GCRY_AC_KEY_SECRET);

key_pub = gcry_ac_key_pair_extract (key_pair, GCRY_AC_KEY_PUBLIC);

and finally I write them to file:

data = gcry_ac_key_data_get(key_pub);

for (i=0; i<2; i++) {
gcry_ac_data_get_index(data,0,i,NULL,&tmp_mpi);
gcry_mpi_aprint(GCRYMPI_FMT_HEX,&value,&len,tmp_mpi);

fprintf(pub_fd," %s",value);
}

data = gcry_ac_key_data_get(key_sec);


for (i=0; i<6; i++) {
gcry_ac_data_get_index(data,0,i,NULL,&tmp_mpi);
gcry_mpi_aprint(GCRYMPI_FMT_HEX,&value,&len,tmp_mpi);

fprintf(priv_fd,"%s ",value);
}
fprintf(priv_fd,"\n");
fprintf(pub_fd,"\n");


Is it possible to use these keys with GnuPG(converting the format somehow)?

Thanks in advance!

Rafael Martin



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