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@@ -34,54 +34,54 @@
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void rc4_init(PRC4Ext pRC4, unsigned char *pbyKey, unsigned int cbKey_len)
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{
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- unsigned int ust1, ust2;
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- unsigned int keyindex;
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- unsigned int stateindex;
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- unsigned char *pbyst;
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- unsigned int idx;
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+ unsigned int ust1, ust2;
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+ unsigned int keyindex;
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+ unsigned int stateindex;
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+ unsigned char *pbyst;
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+ unsigned int idx;
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- pbyst = pRC4->abystate;
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- pRC4->ux = 0;
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- pRC4->uy = 0;
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- for (idx = 0; idx < 256; idx++)
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- pbyst[idx] = (unsigned char)idx;
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- keyindex = 0;
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- stateindex = 0;
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- for (idx = 0; idx < 256; idx++) {
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- ust1 = pbyst[idx];
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- stateindex = (stateindex + pbyKey[keyindex] + ust1) & 0xff;
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- ust2 = pbyst[stateindex];
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- pbyst[stateindex] = (unsigned char)ust1;
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- pbyst[idx] = (unsigned char)ust2;
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- if (++keyindex >= cbKey_len)
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- keyindex = 0;
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- }
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+ pbyst = pRC4->abystate;
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+ pRC4->ux = 0;
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+ pRC4->uy = 0;
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+ for (idx = 0; idx < 256; idx++)
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+ pbyst[idx] = (unsigned char)idx;
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+ keyindex = 0;
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+ stateindex = 0;
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+ for (idx = 0; idx < 256; idx++) {
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+ ust1 = pbyst[idx];
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+ stateindex = (stateindex + pbyKey[keyindex] + ust1) & 0xff;
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+ ust2 = pbyst[stateindex];
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+ pbyst[stateindex] = (unsigned char)ust1;
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+ pbyst[idx] = (unsigned char)ust2;
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+ if (++keyindex >= cbKey_len)
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+ keyindex = 0;
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+ }
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}
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unsigned int rc4_byte(PRC4Ext pRC4)
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{
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- unsigned int ux;
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- unsigned int uy;
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- unsigned int ustx, usty;
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- unsigned char *pbyst;
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+ unsigned int ux;
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+ unsigned int uy;
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+ unsigned int ustx, usty;
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+ unsigned char *pbyst;
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- pbyst = pRC4->abystate;
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- ux = (pRC4->ux + 1) & 0xff;
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- ustx = pbyst[ux];
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- uy = (ustx + pRC4->uy) & 0xff;
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- usty = pbyst[uy];
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- pRC4->ux = ux;
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- pRC4->uy = uy;
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- pbyst[uy] = (unsigned char)ustx;
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- pbyst[ux] = (unsigned char)usty;
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+ pbyst = pRC4->abystate;
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+ ux = (pRC4->ux + 1) & 0xff;
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+ ustx = pbyst[ux];
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+ uy = (ustx + pRC4->uy) & 0xff;
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+ usty = pbyst[uy];
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+ pRC4->ux = ux;
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+ pRC4->uy = uy;
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+ pbyst[uy] = (unsigned char)ustx;
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+ pbyst[ux] = (unsigned char)usty;
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- return pbyst[(ustx + usty) & 0xff];
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+ return pbyst[(ustx + usty) & 0xff];
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}
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void rc4_encrypt(PRC4Ext pRC4, unsigned char *pbyDest,
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- unsigned char *pbySrc, unsigned int cbData_len)
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+ unsigned char *pbySrc, unsigned int cbData_len)
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{
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- unsigned int ii;
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- for (ii = 0; ii < cbData_len; ii++)
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- pbyDest[ii] = (unsigned char)(pbySrc[ii] ^ rc4_byte(pRC4));
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+ unsigned int ii;
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+ for (ii = 0; ii < cbData_len; ii++)
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+ pbyDest[ii] = (unsigned char)(pbySrc[ii] ^ rc4_byte(pRC4));
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}
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