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Questions  |  score: 1  |  1.33 1.67 1.50 |  Solved By 42 People  |  752 views  |  since Oktoober 11, 2024 - 20:50:46

CGX#15: Still Binary (Encoding, Training, CGX)

CGX: Still Binary
Hello future Hackers,

Back in the Days, ASCII was only 7 bit.
The 8th bit, in particular the MSB was used as a check bit, the number of set bits modulo 2.

In challenges, you might encounter a stream of 0 and 1 using only 7 bits per byte.
A hint that this technique is used, might be when the number of bits is divisible by 7.
Your task now is to convert a stream to ASCII.

Greetings
- gizmore and x
Problem CGX#15
This lesson has an interactive problem:

101000010100111001100100001010000011001001100010110000111010010100010110000101010000

The problem is randomly generated and is bound to your session.

Good Luck!
The WeChall Team
Your solution for CGX#15: Still Binary
Answer
# CGX#15: Still Binary

- In old ASCII standard, only 128 different chars were defined
- The MSB (most significant bit) was a checkbit for error detection.


© 2024 by gizmore ja x