| .TH AES 3 |
| .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 \*9/src/libsec |
| .SH SEE ALSO |
| .IR mp (3), |
| .IR blowfish (3), |
| .IR des (3), |
| .IR dsa (3), |
| .IR elgamal (3), |
| .IR rc4 (3), |
| .IR rsa (3), |
| .IR sechash (3), |
| .IR prime (3), |
| .IR rand (3) |
