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ruanhaishen
Tiny AES C
Commits
aa08028c
Unverified
Commit
aa08028c
authored
Jan 05, 2021
by
kokke
Committed by
GitHub
Jan 05, 2021
Browse files
Merge pull request #165 from jsiverskog/fix_warning
Fix compiler warning in CTR only mode
parents
3f69a589
d2b3cd64
Changes
1
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Side-by-side
aes.c
View file @
aa08028c
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@@ -95,6 +95,7 @@ static const uint8_t sbox[256] = {
0xe1
,
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};
#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)
static
const
uint8_t
rsbox
[
256
]
=
{
0x52
,
0x09
,
0x6a
,
0xd5
,
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,
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@@ -112,6 +113,7 @@ static const uint8_t rsbox[256] = {
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,
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,
0xa9
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0x19
,
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,
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,
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,
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,
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,
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,
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,
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};
#endif
// The round constant word array, Rcon[i], contains the values given by
// x to the power (i-1) being powers of x (x is denoted as {02}) in the field GF(2^8)
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@@ -139,13 +141,6 @@ static uint8_t getSBoxValue(uint8_t num)
}
*/
#define getSBoxValue(num) (sbox[(num)])
/*
static uint8_t getSBoxInvert(uint8_t num)
{
return rsbox[num];
}
*/
#define getSBoxInvert(num) (rsbox[(num)])
// This function produces Nb(Nr+1) round keys. The round keys are used in each round to decrypt the states.
static
void
KeyExpansion
(
uint8_t
*
RoundKey
,
const
uint8_t
*
Key
)
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@@ -341,6 +336,14 @@ static uint8_t Multiply(uint8_t x, uint8_t y)
#endif
#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)
/*
static uint8_t getSBoxInvert(uint8_t num)
{
return rsbox[num];
}
*/
#define getSBoxInvert(num) (rsbox[(num)])
// MixColumns function mixes the columns of the state matrix.
// The method used to multiply may be difficult to understand for the inexperienced.
// Please use the references to gain more information.
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