diff options
Diffstat (limited to 'src/arch/arm/insts/crypto.hh')
| -rw-r--r-- | src/arch/arm/insts/crypto.hh | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/arch/arm/insts/crypto.hh b/src/arch/arm/insts/crypto.hh index c89ace04a..021c519cd 100644 --- a/src/arch/arm/insts/crypto.hh +++ b/src/arch/arm/insts/crypto.hh @@ -52,6 +52,41 @@ class Crypto MAJORITY }; + /** Look up table for subByttes transformation */ + static const uint8_t aesSBOX[256]; + + /** Look up table for inverse subBytes transformation */ + static const uint8_t aesInvSBOX[256]; + + static const uint8_t aesSHIFT[16]; + static const uint8_t aesINVSHIFT[16]; + + /** + * Look up table for Finite Field logarithm where the base + * is the element {03} in the field G(256) + */ + static const uint8_t aesFFLOG[256]; + + /** + * Look up table for {03}^X where {03} and X are elements + * in the filed G(256) + */ + static const uint8_t aesFFEXP[256]; + + /** Finite field multiplication of two elements in the field G(256) */ + uint8_t aesFFMul(uint8_t a, uint8_t b); + + uint8_t aesFFMul2(uint8_t a) + { + return ((a & 0x80) ? ((a << 1) ^ 0x1b) : (a << 1)); + } + + void aesSubBytes(uint8_t *output, uint8_t *input); + void aesInvSubBytes(uint8_t *output, uint8_t *input); + void aesShiftRows(uint8_t *output, uint8_t *input); + void aesInvShiftRows(uint8_t *output, uint8_t *input); + void aesAddRoundKey(uint8_t *output, uint8_t *input, uint8_t *key); + uint32_t ror(uint32_t x, uint8_t shift) { return (x >> shift) | (x << (32 - shift)); @@ -92,6 +127,10 @@ class Crypto void store1Reg(uint8_t *output, uint32_t *X); public: + void aesMixColumns(uint8_t *output, uint8_t *input); + void aesInvMixColumns(uint8_t *output, uint8_t *input); + void aesEncrypt(uint8_t *output, uint8_t *input, uint8_t *key); + void aesDecrypt(uint8_t *output, uint8_t *input, uint8_t *key); void sha256H(uint8_t *output, uint8_t *input, uint8_t *input2); void sha256H2(uint8_t *output, uint8_t *input, uint8_t *input2); void sha256Su0(uint8_t *output, uint8_t *input); |