Method: OpenSSL::PKey::DH#generate_key!

Defined in:
ossl_pkey_dh.c

#generate_key! ⇒ self

Generates a private and public key unless a private key already exists. If this DH instance was generated from public DH parameters (e.g. by encoding the result of DH#public_key), then this method needs to be called first in order to generate the per-session keys before performing the actual key exchange.

Example

dh = OpenSSL::PKey::DH.new(2048)
public_key = dh.public_key #contains no private/public key yet
public_key.generate_key!
puts public_key.private? # => true

Returns:

  • (self) 


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# File 'ossl_pkey_dh.c', line 473

static VALUE
ossl_dh_generate_key(VALUE self)
{
    DH *dh;
    EVP_PKEY *pkey;

    GetPKeyDH(self, pkey);
    dh = pkey->pkey.dh;

    if (!DH_generate_key(dh))
	ossl_raise(eDHError, "Failed to generate key");
    return self;
}