Date: Mon, 6 May 2002 10:26:47 -0400 From: "jack xiao" <jack_xiao99@hotmail.com> To: <freebsd-security@FreeBSD.ORG> Subject: AES(rijndael) Message-ID: <OE64AAkjtjsX3Ra5cNt000073cd@hotmail.com>
next in thread | raw e-mail | index | archive | help
Hi All, I have some questions about AES(rijndael) algorithm. AS far as I know, The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encypt and decrypt data in blocks of 128 bits. So I did the following test. I chose DES, 3DES and Blowfish in the Key Encryption and AES in Data Encryption in isakmpd.conf under FreeBSD4.5. The DES key is 64 bits, key of 3DES is 192 bits and Blowfish key varies from 32 bits to 448 bits. Before the test, I guess I can set up the tunnel with 128, 192 or 256 bits key. But to my surprise, I can set up the tunnel with 64 bits key(DES), 448 bits key(Blowfish) besides 128, 192 and 256 bits key. Everytime, when I use "setkey -Dv" to show the key after the tunnel is up, the encypt and decrypt data is in blocks of 128 bits. Is that to say, AES is capable using more kinds of keys than 128, 192, 256 bits long? Could you please give me your thoughts? Thanks. Jack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?OE64AAkjtjsX3Ra5cNt000073cd>