I'm glad you like it! If you want to get hands-on and take The Plunge, we have the Hackathon 101 course for free or the Vehicle Penetration Testing course at vsec.blockharbor.io
What if 10:50 my theorical message lenght is 03E, and my actual message length is 67 bytes (3 + 8*8 bytes) ? Are there other parts that are unimportant in the message, therefore not counted ?
Hi man, the video is supppper good for me, I am researching about COM STACK and Im stucking at How CANTP break down the date > 8byte. It's supper clear for me. Thanks alots
10:48 - In the first frame of the sequence the length of the data is 0x01B which is 27 in decimal, but the length of the VIN is 24-Bytes (33 46 4D 54 4B ...... 00 00 00 00 00). Can you help me with this?
While the length of the VIN is 24 bytes, the entire message is 27 bytes of data. The length of the response includes the "62 F1 90," indicating a positive response to a service 22 requesting the VIN.
Always the length of the Response = Length of Data + Service ID + Sub Service ID + ID In the case: Length of Data = 24 Bytes Service ID = 1 Byte (0x22 + 0x40 = 0x62) Sub Service ID = 0 (No Sub Service ID in Read DID) ID = 2 Bytes (F1 90) Total = 27 Bytes
I am getting myself familiar with UDS and isotp. This is the most practical and detailed video I've seen right now. I really appreciate.
I'm glad you like it! If you want to get hands-on and take The Plunge, we have the Hackathon 101 course for free or the Vehicle Penetration Testing course at vsec.blockharbor.io
This video is simple, but yet the best explanation on ISOTP. Thank you and keep up the good work :)
What if 10:50 my theorical message lenght is 03E, and my actual message length is 67 bytes (3 + 8*8 bytes) ? Are there other parts that are unimportant in the message, therefore not counted ?
Hi man, the video is supppper good for me, I am researching about COM STACK and Im stucking at How CANTP break down the date > 8byte. It's supper clear for me. Thanks alots
10:48 - In the first frame of the sequence the length of the data is 0x01B which is 27 in decimal, but the length of the VIN is 24-Bytes (33 46 4D 54 4B ...... 00 00 00 00 00). Can you help me with this?
While the length of the VIN is 24 bytes, the entire message is 27 bytes of data. The length of the response includes the "62 F1 90," indicating a positive response to a service 22 requesting the VIN.
Always the length of the Response = Length of Data + Service ID + Sub Service ID + ID
In the case:
Length of Data = 24 Bytes
Service ID = 1 Byte (0x22 + 0x40 = 0x62)
Sub Service ID = 0 (No Sub Service ID in Read DID)
ID = 2 Bytes (F1 90)
Total = 27 Bytes