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977b25a76a
The overloading of IR emits magic \X'...' sequences that turn into HTML manual links. But not all such IR invocations should be manual links; those had to be written to avoid the IR macro before. Worse, the \X'...' ending the IR causes troff to emit only a single space after a period. Defining a new IM macro for manual references fixes both problems. Fixes #441.
51 lines
1,005 B
Groff
51 lines
1,005 B
Groff
.TH AES 3
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.SH NAME
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setupAESstate, aesCBCencrypt, aesCBCdecrypt - advanced encryption standard (rijndael)
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.SH SYNOPSIS
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.B #include <u.h>
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.br
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.B #include <libc.h>
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.br
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.B #include <mp.h>
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.br
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.B #include <libsec.h>
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.PP
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.B
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void setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec)
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.PP
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.B
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void aesCBCencrypt(uchar*, int, AESstate*)
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.PP
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.B
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void aesCBCdecrypt(uchar*, int, AESstate*)
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.PP
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.SH DESCRIPTION
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.PP
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DES is being replaced by Rijndael, also known as AES, as the preferred
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block ciper.
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.IR setupAESstate ,
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.IR aesCBCencrypt ,
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and
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.I aesCBCdecrypt
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implement cipher block chaining encryption.
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.I Keybytes
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should be 16, 24, or 32.
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The initialization vector
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.I ivec
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of
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.I AESbsize
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bytes should random enough to be unlikely to be reused but does not need to be
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cryptographically strongly unpredictable.
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.SH SOURCE
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.B \*9/src/libsec
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.SH SEE ALSO
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.IM mp (3) ,
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.IM blowfish (3) ,
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.IM des (3) ,
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.IM dsa (3) ,
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.IM elgamal (3) ,
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.IM rc4 (3) ,
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.IM rsa (3) ,
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.IM sechash (3) ,
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.IM prime (3) ,
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.IM rand (3)
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