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ruanhaishen
Tiny AES C
Commits
a97324ad
Commit
a97324ad
authored
Jul 08, 2017
by
kokke
Committed by
GitHub
Jul 08, 2017
Browse files
Update aes.c
cosmetic changes
parent
67e844a5
Changes
1
Hide whitespace changes
Inline
Side-by-side
aes.c
View file @
a97324ad
...
@@ -92,7 +92,7 @@ static const uint8_t* Key;
...
@@ -92,7 +92,7 @@ static const uint8_t* Key;
// The lookup-tables are marked const so they can be placed in read-only storage instead of RAM
// The lookup-tables are marked const so they can be placed in read-only storage instead of RAM
// The numbers below can be computed dynamically trading ROM for RAM -
// The numbers below can be computed dynamically trading ROM for RAM -
// This can be useful in (embedded) bootloader applications, where ROM is often limited.
// This can be useful in (embedded) bootloader applications, where ROM is often limited.
static
const
uint8_t
sbox
[
256
]
=
{
static
const
uint8_t
sbox
[
256
]
=
{
//0 1 2 3 4 5 6 7 8 9 A B C D E F
//0 1 2 3 4 5 6 7 8 9 A B C D E F
0x63
,
0x7c
,
0x77
,
0x7b
,
0xf2
,
0x6b
,
0x6f
,
0xc5
,
0x30
,
0x01
,
0x67
,
0x2b
,
0xfe
,
0xd7
,
0xab
,
0x76
,
0x63
,
0x7c
,
0x77
,
0x7b
,
0xf2
,
0x6b
,
0x6f
,
0xc5
,
0x30
,
0x01
,
0x67
,
0x2b
,
0xfe
,
0xd7
,
0xab
,
0x76
,
0xca
,
0x82
,
0xc9
,
0x7d
,
0xfa
,
0x59
,
0x47
,
0xf0
,
0xad
,
0xd4
,
0xa2
,
0xaf
,
0x9c
,
0xa4
,
0x72
,
0xc0
,
0xca
,
0x82
,
0xc9
,
0x7d
,
0xfa
,
0x59
,
0x47
,
0xf0
,
0xad
,
0xd4
,
0xa2
,
0xaf
,
0x9c
,
0xa4
,
0x72
,
0xc0
,
...
@@ -111,8 +111,8 @@ static const uint8_t sbox[256] = {
...
@@ -111,8 +111,8 @@ static const uint8_t sbox[256] = {
0xe1
,
0xf8
,
0x98
,
0x11
,
0x69
,
0xd9
,
0x8e
,
0x94
,
0x9b
,
0x1e
,
0x87
,
0xe9
,
0xce
,
0x55
,
0x28
,
0xdf
,
0xe1
,
0xf8
,
0x98
,
0x11
,
0x69
,
0xd9
,
0x8e
,
0x94
,
0x9b
,
0x1e
,
0x87
,
0xe9
,
0xce
,
0x55
,
0x28
,
0xdf
,
0x8c
,
0xa1
,
0x89
,
0x0d
,
0xbf
,
0xe6
,
0x42
,
0x68
,
0x41
,
0x99
,
0x2d
,
0x0f
,
0xb0
,
0x54
,
0xbb
,
0x16
};
0x8c
,
0xa1
,
0x89
,
0x0d
,
0xbf
,
0xe6
,
0x42
,
0x68
,
0x41
,
0x99
,
0x2d
,
0x0f
,
0xb0
,
0x54
,
0xbb
,
0x16
};
static
const
uint8_t
rsbox
[
256
]
=
static
const
uint8_t
rsbox
[
256
]
=
{
{
0x52
,
0x09
,
0x6a
,
0xd5
,
0x30
,
0x36
,
0xa5
,
0x38
,
0xbf
,
0x40
,
0xa3
,
0x9e
,
0x81
,
0xf3
,
0xd7
,
0xfb
,
0x52
,
0x09
,
0x6a
,
0xd5
,
0x30
,
0x36
,
0xa5
,
0x38
,
0xbf
,
0x40
,
0xa3
,
0x9e
,
0x81
,
0xf3
,
0xd7
,
0xfb
,
0x7c
,
0xe3
,
0x39
,
0x82
,
0x9b
,
0x2f
,
0xff
,
0x87
,
0x34
,
0x8e
,
0x43
,
0x44
,
0xc4
,
0xde
,
0xe9
,
0xcb
,
0x7c
,
0xe3
,
0x39
,
0x82
,
0x9b
,
0x2f
,
0xff
,
0x87
,
0x34
,
0x8e
,
0x43
,
0x44
,
0xc4
,
0xde
,
0xe9
,
0xcb
,
0x54
,
0x7b
,
0x94
,
0x32
,
0xa6
,
0xc2
,
0x23
,
0x3d
,
0xee
,
0x4c
,
0x95
,
0x0b
,
0x42
,
0xfa
,
0xc3
,
0x4e
,
0x54
,
0x7b
,
0x94
,
0x32
,
0xa6
,
0xc2
,
0x23
,
0x3d
,
0xee
,
0x4c
,
0x95
,
0x0b
,
0x42
,
0xfa
,
0xc3
,
0x4e
,
0x08
,
0x2e
,
0xa1
,
0x66
,
0x28
,
0xd9
,
0x24
,
0xb2
,
0x76
,
0x5b
,
0xa2
,
0x49
,
0x6d
,
0x8b
,
0xd1
,
0x25
,
0x08
,
0x2e
,
0xa1
,
0x66
,
0x28
,
0xd9
,
0x24
,
0xb2
,
0x76
,
0x5b
,
0xa2
,
0x49
,
0x6d
,
0x8b
,
0xd1
,
0x25
,
...
@@ -132,22 +132,22 @@ static const uint8_t rsbox[256] =
...
@@ -132,22 +132,22 @@ static const uint8_t rsbox[256] =
// The round constant word array, Rcon[i], contains the values given by
// The round constant word array, Rcon[i], contains the values given by
// x to th e power (i-1) being powers of x (x is denoted as {02}) in the field GF(2^8)
// x to th e power (i-1) being powers of x (x is denoted as {02}) in the field GF(2^8)
static
const
uint8_t
Rcon
[
256
]
=
{
static
const
uint8_t
Rcon
[
256
]
=
{
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
,
0x01
,
0x02
,
0x04
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0x08
,
0x10
,
0x20
,
0x40
,
0x80
,
0x1b
,
0x36
,
0x6c
,
0xd8
,
0xab
,
0x4d
,
0x9a
,
0x2f
,
0x5e
,
0xbc
,
0x63
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0xc6
,
0x97
,
0x35
,
0x6a
,
0xd4
,
0xb3
,
0x7d
,
0xfa
,
0xef
,
0xc5
,
0x91
,
0x39
,
0x72
,
0xe4
,
0xd3
,
0xbd
,
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
};
0x61
,
0xc2
,
0x9f
,
0x25
,
0x4a
,
0x94
,
0x33
,
0x66
,
0xcc
,
0x83
,
0x1d
,
0x3a
,
0x74
,
0xe8
,
0xcb
,
0x8d
};
/*****************************************************************************/
/*****************************************************************************/
...
...
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