Hi Thulasi,
Thank you for your email, it was an inspiration for our team to follow up.
Final solution then looks like this:
bool InitKey(RSA_ptr& pkey) {
//Recalculate Modulus from provided components
BnCtx ctx;
{
const BIGNUM* p;
const BIGNUM* q;
RSA_get0_factors(pkey.get(),
Hello Jan,
Decide on what your public exponent(e) should be, and either use
RSA_X931_derive_ex() if you are using an older openssl which supports
this function or follow rsa_builtin_keygen() from crypto/rsa/rsa_gen.c
on how to derive private exponent(d) and modulus(n).
By the way, technically, yo
Hi all,
I need to reconstruct public and private keys for data signing operation
from p, q, dmp1, dmq1 and iqmp. When I fill values in as per below then
OpenSSL complains about missing d.
RSA* pkey = RSA_new();
pkey->n = NULL;
pkey->e = NULL;
pkey->d = NULL;
pkey->p= BN_b
