www.pudn.com > sslref30.zip > 3ecb_enc.c

/* 3ecb_enc.c */ 
/* Copyright (C) 1993 Eric Young - see README for more details */ 
#include "des_locl.h" 
 
int des_3ecb_encrypt(input,output,ks1,ks2,encrypt) 
des_cblock *input; 
des_cblock *output; 
des_key_schedule ks1,ks2; 
int encrypt; 
    { 
    register unsigned long l0,l1,t; 
    register unsigned char *in,*out; 
    unsigned long ll[2]; 
 
    in=(unsigned char *)input; 
    out=(unsigned char *)output; 
    c2l(in,l0); 
    c2l(in,l1); 
    ll[0]=l0; 
    ll[1]=l1; 
    des_encrypt(ll,ll,ks1,encrypt); 
    des_encrypt(ll,ll,ks2,!encrypt); 
    des_encrypt(ll,ll,ks1,encrypt); 
    l0=ll[0]; 
    l1=ll[1]; 
    l2c(l0,out); 
    l2c(l1,out); 
    return(0); 
    }