Rsa Encrypt RAW get wrong result

when I use rsa encrypt with "RAW", the result is wrong when the input contains no-ascii data.
I don't know if it's nesessary to "encodeUtf8(input)", but the bug fixed when i remove it.

but when i want to pull a request, i cannot pass the unit test.

Start by reproducing the RSA Encrypt operation with the RAW option and non-ASCII input, then inspect the existing unit test that currently fails. Compare the handling of the input with and without UTF-8 encoding; done means the RAW result is correct for non-ASCII data and the unit test passes.

Written by the indexing model from the issue text.