1 .TH AES 3
2 .SH NAME
3 setupAESstate, aesCBCencrypt, aesCBCdecrypt - advanced encryption standard (rijndael)
4 .SH SYNOPSIS
5 .B #include <u.h>
6 .br
7 .B #include <libc.h>
8 .br
9 .B #include <mp.h>
10 .br
11 .B #include <libsec.h>
12 .PP
13 .B
14 void	setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec)
15 .PP
16 .B
17 void	aesCBCencrypt(uchar*, int, AESstate*)
18 .PP
19 .B
20 void	aesCBCdecrypt(uchar*, int, AESstate*)
21 .PP
22 .SH DESCRIPTION
23 .PP
24 DES is being replaced by Rijndael, also known as AES, as the preferred
25 block ciper.
26 .IR setupAESstate ,
27 .IR aesCBCencrypt ,
28 and
29 .I aesCBCdecrypt
30 implement cipher block chaining encryption.
31 .I Keybytes
32 should be 16, 24, or 32.
33 The initialization vector
34 .I ivec
35 of
36 .I AESbsize
37 bytes should random enough to be unlikely to be reused but does not need to be
38 cryptographically strongly unpredictable.
39 .SH SOURCE
40 .B \*9/src/libsec
41 .SH SEE ALSO
42 .MR mp (3) ,
43 .MR blowfish (3) ,
44 .MR des (3) ,
45 .MR dsa (3) ,
46 .MR elgamal (3) ,
47 .MR rc4 (3) ,
48 .MR rsa (3) ,
49 .MR sechash (3) ,
50 .MR prime (3) ,
51 .MR rand (3)