No, with that feature you DO roll dice and enter each result, 99+ times, then the CC generates the seed words from your rolls. ALLEGEDLY! FFS
That is secure.
Passing that 99 rolls into SHA 256 is deterministic, a 6-sided die has 2.585 bit per roll.
99 rolls = 99X2.585 bits = 255.91 bits
You can verify it offline using SHA256 sum. For example
C:\Windows\system32>echo -n "426513642135641235614236514236514236152436152436152436152436152436152436152436152436152436152436125" | sha256sum
b40a6641ba36fdf0ccaaa2a049335831a941ddda2b7ce7e8d70e89d994cafffe
The output is 64 hexadecimal characters long
4 bits per char
64 X 4 = 256 bits
Passing that 99 rolls into SHA 256 is deterministic, a 6-sided die has 2.585 bit per roll.
99 rolls = 99X2.585 bits = 255.91 bits
You can verify it offline using SHA256 sum. For example
C:\Windows\system32>echo -n "426513642135641235614236514236514236152436152436152436152436152436152436152436152436152436152436125" | sha256sum
b40a6641ba36fdf0ccaaa2a049335831a941ddda2b7ce7e8d70e89d994cafffe
The output is 64 hexadecimal characters long
4 bits per char
64 X 4 = 256 bits
โค๏ธ1