RijndaelManaged supports 128-256 bit key, what key size the default constructor generator?

Question

For new RijndaelManaged(), the documentation says it supports keys of 128 bits and up to 256 bits.

When you instantiate new RijndaelManaged(), it creates the Key and IV for you.

What size does it default to, 128 bits?

score 23 · Answer 1 · answered Nov 11 '08 at 15:17

23

The default key size is 256 bits, while the default blocksize is 128 bits.

answered Nov 11 '08 at 15:17

leppie

The documentation confirms: https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.rijndaelmanaged.keysize?view=netstandard-2.1&viewFallbackFrom=netframework-4.8 – KnotGillCup Sep 19 '19 at 10:13

1 Answers1