I figured this out. Turns out the access key should be interpreted as an ASCII or UTF-8 string, and not a hex string, for the encryption key. Thus, ticket_key is decrypted as a 128-bit key with 128-bits of padding, not 256 bits total. Replying again to bump this thread. Really appreciate it if you ...

I figured this out. Turns out the access key should be interpreted as an ASCII or UTF-8 string, and not a hex string, for the encryption key. Thus, ticket_key is decrypted as a 128-bit key with 128-bits of padding, not 256 bits total. Hey, I'm currently stuck here. And my code is 98% similar to the...