If "Delphi" at the end of your request referred to older versions (like Delphi 7 or Delphi 10.4 Sydney), please note that specific installer binaries (like build 3521) are usually compiled per-IDE. You would need to verify backward or forward compatibility with the source code if the binary installer is refused by the IDE.
If you are using Delphi 10.2 Tokyo and migrating from: tms cryptography pack 3521 delphi 102 tokyo and delphi
finally RSA.Free; end; end;