Re: CFB supported in Windows Mobile 5 ?

Thanks Laszlo, actually I tried, the only valid option for the padding
is PKCS5_PADDING. All other options are invalid, including "0". Yes,
padding and mode of operation are independent, but CFB should have no
padding, so I guess it is not supported in Windows Mobile. I tried in
Windows Mobile 6 and it gives the same result. But MSDN said it is
supported from CE 3.0....

On 12月29日, 上午1時21分, lelteto <lelt...@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Padding and mode of operation are independent. If you want no padding, you
should try to set "no padding" via CryptSetKeyParam(KP_PADDING) with DWORD=0
- before you start using the key. The default is padding with PKCS5_PADDING.
(Don't know if it's supported in Windows Mobile.)

Laszlo Elteto
SafeNet, Inc.



"walter...@xxxxxxxxxxx" wrote:
I am using Windows Mobile 5 and AES 128 bit block cipher with 128 bit
key. I found that the ciphertext are always padded no matter which
chaining mode I choose in CryptSetKeyParam. Is CFB supported in
Windows CE 5.0 ?- 隱藏被引用文字 -

- 顯示被引用文字 -

.