Lockbox 3 GenerateKeys = Range Check Error

[softtouch 9]

Delphi 12.2, I installed LockBox 3 via GetIt. So far so good.

 

I try to generate public and private keys, but I get all the time a range check error.

 

Here is the example code:

 

  CryptoLib := TCryptographicLibrary.Create(nil);
  CodecRSA := TCodec.Create(nil);
  Signatory := TSignatory.Create(nil);

  CodecRSA.CryptoLibrary := CryptoLib;
  CodecRSA.StreamCipherId := 'native.RSA';
  CodecRSA.AsymetricKeySizeInBits := 1024;
  Signatory.Codec := CodecRSA;

  Signatory.GenerateKeys;  // <== Range Check Error

  Signatory.Free;
  CodecRSA.Free;
  CryptoLib.Free;

 

What am I doing wrong?

[PeterBelow 255]

54 minutes ago, softtouch said:

Delphi 12.2, I installed LockBox 3 via GetIt. So far so good.

 

I try to generate public and private keys, but I get all the time a range check error.

 

Here is the example code:

 

  CryptoLib := TCryptographicLibrary.Create(nil);
  CodecRSA := TCodec.Create(nil);
  Signatory := TSignatory.Create(nil);

  CodecRSA.CryptoLibrary := CryptoLib;
  CodecRSA.StreamCipherId := 'native.RSA';
  CodecRSA.AsymetricKeySizeInBits := 1024;
  Signatory.Codec := CodecRSA;

  Signatory.GenerateKeys;  // <== Range Check Error

  Signatory.Free;
  CodecRSA.Free;
  CryptoLib.Free;

 

What am I doing wrong?

Probably nothing :). The default setting for range checking changed to "on" and the Lockbox version in GetIt may not reflect that yet. Try to use the latest version from github instead: https://github.com/TurboPack/LockBox3

[softtouch 9]

I just installed the latest version from github, it does exactly the same.

[Cristian Peța 118]

-                b8_1  := P8^ shl ShiftAmnt; 
+                b8_1  := Byte(P8^ shl ShiftAmnt); //(3 shl 7) do not fit into Byte

-                b8_1 := P8^ shl ShiftComp8;
+                b8_1 := Byte(P8^ shl ShiftComp8);

-  PoweredFactor, Power, iFactor: integer;
+  PoweredFactor, Power, iFactor: uint32;

After some changes in /run/utilities/uTPLb_HugeCardinal.pas no more errors... but it works?

If it worked with range checking OFF then probably it will work.

Edited June 13 by Cristian Peța