AES: Length incorrect. Error

[MZK91]

Hi guys,

I'm coming back with another issue I'm facing using the class, but this time I think it might come from the bank. I needed some information regarding this error message.

So the problem appears when I try to use the action "FDL", I got a response from the bank, but it generates this error:

Do you guys have any ideas about where it might come from ?

Thanks in advance for any info.

[andrew-svirin]

Hi
@MZK91 what version do you use?

[andrew-svirin]

Modify this row
throw new LogicException('Length incorrect.');
to
throw new LogicException(sprintf('Length %d incorrect (block_size is %d).', $length, $this->block_size));

[MZK91]

I'm using the last version and thank for the change, here the result that I have:

[andrew-svirin]

Try to change this line https://github.com/andrew-svirin/ebics-client-php/blob/2.x/src/Models/Crypt/AES.php#L401

to return ''; instead of throw new Exception

[MZK91]

I did the change you ask me to and this is the result:

[andrew-svirin]

Try to comment lines 401-403

https://github.com/andrew-svirin/ebics-client-php/blob/2.x/src/Models/Crypt/AES.php#L400

[MZK91]

Here the result that I have:

[andrew-svirin]

When have not idea. Some problem with decryption. But this method worked last time for me.

[MZK91]

No it was working perfectly and the code was on production on the server. I'm blaming the bank for that one and just wanted to confirm with you. I think they might have change something on their side that cause the issue.

Thank you so much Andrew for you help, you the best bro !

[andrew-svirin]

@MZK91 I am not sure that bank system working wrong, but do not exclude it.
For example can be some zero-byte that what escaped. I mean that some text that should be decoded should have leading zero-bytes to have in result full cartage. For example, bank can send instead of 00012CF - 12CF value and algorithm should know that 12CF -should be converted to 8 bytes 00012CF and for encoding/decoding this can be critical.

[andrew-svirin]

If someone will met same bug we can conclude that some incorrect in decoding algorithm.