diff options
Diffstat (limited to 'drivers/staging/vt6655/aes_ccmp.c')
| -rw-r--r-- | drivers/staging/vt6655/aes_ccmp.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/drivers/staging/vt6655/aes_ccmp.c b/drivers/staging/vt6655/aes_ccmp.c index 82b0bd1c056a..4ccfe06481fc 100644 --- a/drivers/staging/vt6655/aes_ccmp.c +++ b/drivers/staging/vt6655/aes_ccmp.c @@ -46,8 +46,7 @@ * SBOX Table */ -static unsigned char sbox_table[256] = -{ +static unsigned char sbox_table[256] = { 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, 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, @@ -153,9 +152,8 @@ static void SubBytes(unsigned char *in, unsigned char *out) { int i; - for (i = 0; i < 16; i++) { + for (i = 0; i < 16; i++) out[i] = sbox_table[in[i]]; - } } static void ShiftRows(unsigned char *in, unsigned char *out) @@ -205,8 +203,7 @@ static void AESv128(unsigned char *key, unsigned char *data, unsigned char *ciph SubBytes(ciphertext, TmpdataA); ShiftRows(TmpdataA, TmpdataB); xor_128(TmpdataB, abyRoundKey, ciphertext); - } else /* round 1 ~ 9 */ - { + } else /* round 1 ~ 9 */{ SubBytes(ciphertext, TmpdataA); ShiftRows(TmpdataA, TmpdataB); MixColumns(&TmpdataB[0], &TmpdataA[0]); @@ -311,13 +308,11 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor /* CCMP */ AESv128(pbyRxKey, MIC_IV, abyMIC); - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyTmp[kk] = MIC_HDR1[kk] ^ abyMIC[kk]; - } AESv128(pbyRxKey, abyTmp, abyMIC); - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyTmp[kk] = MIC_HDR2[kk] ^ abyMIC[kk]; - } AESv128(pbyRxKey, abyTmp, abyMIC); wCnt = 1; @@ -330,12 +325,10 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor AESv128(pbyRxKey, abyCTRPLD, abyTmp); - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyPlainText[kk] = abyTmp[kk] ^ pbyPayload[kk]; - } - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyTmp[kk] = abyMIC[kk] ^ abyPlainText[kk]; - } AESv128(pbyRxKey, abyTmp, abyMIC); memcpy(pbyPayload, abyPlainText, 16); @@ -345,27 +338,23 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor /* last payload */ memcpy(&(abyLastCipher[0]), pbyPayload, jj); - for (ii = jj; ii < 16; ii++) { + for (ii = jj; ii < 16; ii++) abyLastCipher[ii] = 0x00; - } abyCTRPLD[14] = (unsigned char)(wCnt >> 8); abyCTRPLD[15] = (unsigned char)(wCnt & 0xff); AESv128(pbyRxKey, abyCTRPLD, abyTmp); - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyPlainText[kk] = abyTmp[kk] ^ abyLastCipher[kk]; - } memcpy(pbyPayload, abyPlainText, jj); pbyPayload += jj; /* for MIC calculation */ - for (ii = jj; ii < 16; ii++) { + for (ii = jj; ii < 16; ii++) abyPlainText[ii] = 0x00; - } - for (kk = 0; kk < 16; kk++) { + for (kk = 0; kk < 16; kk++) abyTmp[kk] = abyMIC[kk] ^ abyPlainText[kk]; - } AESv128(pbyRxKey, abyTmp, abyMIC); /* =>above is the calculate MIC */ @@ -375,9 +364,8 @@ bool AESbGenCCMP(unsigned char *pbyRxKey, unsigned char *pbyFrame, unsigned shor abyCTRPLD[14] = (unsigned char)(wCnt >> 8); abyCTRPLD[15] = (unsigned char)(wCnt & 0xff); AESv128(pbyRxKey, abyCTRPLD, abyTmp); - for (kk = 0; kk < 8; kk++) { + for (kk = 0; kk < 8; kk++) abyTmp[kk] = abyTmp[kk] ^ pbyPayload[kk]; - } /* =>above is the dec-MIC from packet */ /* -------------------------------------------- */ |