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- .TH AES 2
- .SH NAME
- setupAESstate, aesCBCencrypt, aesCBCdecrypt - advanced encryption standard (rijndael)
- .SH SYNOPSIS
- .B #include <u.h>
- .br
- .B #include <libc.h>
- .br
- .B #include <mp.h>
- .br
- .B #include <libsec.h>
- .PP
- .B
- void setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec)
- .PP
- .B
- void aesCBCencrypt(uchar*, int, AESstate*)
- .PP
- .B
- void aesCBCdecrypt(uchar*, int, AESstate*)
- .PP
- .SH DESCRIPTION
- .PP
- DES is being replaced by Rijndael, also known as AES, as the preferred
- block ciper.
- .IR setupAESstate ,
- .IR aesCBCencrypt ,
- and
- .I aesCBCdecrypt
- implement cipher block chaining encryption.
- .I Keybytes
- should be 16, 24, or 32.
- The initialization vector
- .I ivec
- of
- .I AESbsize
- bytes should random enough to be unlikely to be reused but does not need to be
- cryptographically strongly unpredictable.
- .SH SOURCE
- .B /sys/src/libsec
- .SH SEE ALSO
- .IR mp (2),
- .IR blowfish (2),
- .IR des (2),
- .IR dsa (2),
- .IR elgamal (2),
- .IR rc4 (2),
- .IR rsa (2),
- .IR sechash (2),
- .IR prime (2),
- .IR rand (2)
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