CryptoHorrific [Mobile] [Writeup]

Step by step writeup

Stats of the challenge.

Link to the challenge.

Get the parameters to decrypt the text:

Use IDA to get the assembler code and F5 to generate pseudo code.
In the challenge.plist file we find the following:

bplist00��TflagRidUtitle_XTq+CWzQS0wYzs2rJ+GNrPLP6qekDbwze6fIeRRwBK2WXHOhba7WR2OGNUFKoAvyW7njTCMlQzlwIRdJ…