diff options
Diffstat (limited to 'drivers/staging/vt6656/rc4.c')
-rw-r--r-- | drivers/staging/vt6656/rc4.c | 84 |
1 files changed, 42 insertions, 42 deletions
diff --git a/drivers/staging/vt6656/rc4.c b/drivers/staging/vt6656/rc4.c index e6c61312fd28..5c3c2d0552b4 100644 --- a/drivers/staging/vt6656/rc4.c +++ b/drivers/staging/vt6656/rc4.c @@ -32,56 +32,56 @@ #include "rc4.h" -VOID rc4_init(PRC4Ext pRC4, PBYTE pbyKey, UINT cbKey_len) +void rc4_init(PRC4Ext pRC4, PBYTE pbyKey, unsigned int cbKey_len) { - UINT ust1, ust2; - UINT keyindex; - UINT stateindex; - PBYTE pbyst; - UINT idx; + unsigned int ust1, ust2; + unsigned int keyindex; + unsigned int stateindex; + PBYTE pbyst; + unsigned int idx; - pbyst = pRC4->abystate; - pRC4->ux = 0; - pRC4->uy = 0; - for (idx = 0; idx < 256; idx++) - pbyst[idx] = (BYTE)idx; - keyindex = 0; - stateindex = 0; - for (idx = 0; idx < 256; idx++) { - ust1 = pbyst[idx]; - stateindex = (stateindex + pbyKey[keyindex] + ust1) & 0xff; - ust2 = pbyst[stateindex]; - pbyst[stateindex] = (BYTE)ust1; - pbyst[idx] = (BYTE)ust2; - if (++keyindex >= cbKey_len) - keyindex = 0; - } + pbyst = pRC4->abystate; + pRC4->ux = 0; + pRC4->uy = 0; + for (idx = 0; idx < 256; idx++) + pbyst[idx] = (BYTE)idx; + keyindex = 0; + stateindex = 0; + for (idx = 0; idx < 256; idx++) { + ust1 = pbyst[idx]; + stateindex = (stateindex + pbyKey[keyindex] + ust1) & 0xff; + ust2 = pbyst[stateindex]; + pbyst[stateindex] = (BYTE)ust1; + pbyst[idx] = (BYTE)ust2; + if (++keyindex >= cbKey_len) + keyindex = 0; + } } -UINT rc4_byte(PRC4Ext pRC4) +unsigned int rc4_byte(PRC4Ext pRC4) { - UINT ux; - UINT uy; - UINT ustx, usty; - PBYTE pbyst; + unsigned int ux; + unsigned int uy; + unsigned int ustx, usty; + PBYTE pbyst; - pbyst = pRC4->abystate; - ux = (pRC4->ux + 1) & 0xff; - ustx = pbyst[ux]; - uy = (ustx + pRC4->uy) & 0xff; - usty = pbyst[uy]; - pRC4->ux = ux; - pRC4->uy = uy; - pbyst[uy] = (BYTE)ustx; - pbyst[ux] = (BYTE)usty; + pbyst = pRC4->abystate; + ux = (pRC4->ux + 1) & 0xff; + ustx = pbyst[ux]; + uy = (ustx + pRC4->uy) & 0xff; + usty = pbyst[uy]; + pRC4->ux = ux; + pRC4->uy = uy; + pbyst[uy] = (BYTE)ustx; + pbyst[ux] = (BYTE)usty; - return pbyst[(ustx + usty) & 0xff]; + return pbyst[(ustx + usty) & 0xff]; } -VOID rc4_encrypt(PRC4Ext pRC4, PBYTE pbyDest, - PBYTE pbySrc, UINT cbData_len) +void rc4_encrypt(PRC4Ext pRC4, PBYTE pbyDest, + PBYTE pbySrc, unsigned int cbData_len) { - UINT ii; - for (ii = 0; ii < cbData_len; ii++) - pbyDest[ii] = (BYTE)(pbySrc[ii] ^ rc4_byte(pRC4)); + unsigned int ii; + for (ii = 0; ii < cbData_len; ii++) + pbyDest[ii] = (BYTE)(pbySrc[ii] ^ rc4_byte(pRC4)); } |