ref: dab539cd14726de15932b0310532212f8da29bf7
dir: /sys/src/cmd/ssh/cipherrc4.c/
#include "ssh.h" struct CipherState { RC4state enc; RC4state dec; }; static CipherState* initrc4(Conn *c, int isserver) { CipherState *cs; cs = emalloc(sizeof(CipherState)); if(isserver){ setupRC4state(&cs->enc, c->sesskey, 16); setupRC4state(&cs->dec, c->sesskey+16, 16); }else{ setupRC4state(&cs->dec, c->sesskey, 16); setupRC4state(&cs->enc, c->sesskey+16, 16); } return cs; } static void encryptrc4(CipherState *cs, uchar *buf, int nbuf) { rc4(&cs->enc, buf, nbuf); } static void decryptrc4(CipherState *cs, uchar *buf, int nbuf) { rc4(&cs->dec, buf, nbuf); } Cipher cipherrc4 = { SSH_CIPHER_RC4, "rc4", initrc4, encryptrc4, decryptrc4, };