Lockbox 3 load public key not possible - stream reading error

Question

Well i generated a keypair with openssl

openssl genrsa -des3 -out _private.pem 1024

openssl rsa -pubout -in _private.pem -out public.pem

P

Answer 1

In my experience, LockBox 3 needs a PKCS#1 public key when working with OpenSSL generated keys. You must convert the public key to PKCS#1 before Lockbox3 can load it. (OpenSSL generates a PKCS#8 key). Use the RSAPublicKey keyword.

openssl rsa -pubin -in yourpublickey -RSAPublicKey_out -out publicpkcs1

https://www.openssl.org/docs/apps/rsa.html

http://lockbox.seanbdurkin.id.au/tiki-view_forum_thread.php?comments_parentId=298&display=print

Answer 2

After loading the stream you should reset it to the beginning before handing it over to LoadKeysFromStream.

  //====Signatory1=====================
  Signatory1.Codec :=codecRSA;
  //===Load public key=============
  f.Position := 0;
  Signatory1.LoadKeysFromStream(f, [partPrivate]);