-void des_ofb64_encrypt(in, out, length, schedule, ivec, num)
-register unsigned char *in;
-register unsigned char *out;
-long length;
-des_key_schedule schedule;
-des_cblock (*ivec);
-int *num;
- {
- register DES_LONG v0,v1,t;
- register int n= *num;
- register long l=length;
- des_cblock d;
- register char *dp;
- DES_LONG ti[2];
- unsigned char *iv;
- int save=0;
-
- iv=(unsigned char *)ivec;
- c2l(iv,v0);
- c2l(iv,v1);
- ti[0]=v0;
- ti[1]=v1;
- dp=(char *)d;
- l2c(v0,dp);
- l2c(v1,dp);
- while (l--)
- {
- if (n == 0)
- {
- des_encrypt((DES_LONG *)ti,schedule,DES_ENCRYPT);
- dp=(char *)d;
- t=ti[0]; l2c(t,dp);
- t=ti[1]; l2c(t,dp);
- save++;
- }
- *(out++)= *(in++)^d[n];
- n=(n+1)&0x07;
- }
- if (save)
- {
- v0=ti[0];
- v1=ti[1];
- iv=(unsigned char *)ivec;
- l2c(v0,iv);
- l2c(v1,iv);
- }
- t=v0=v1=ti[0]=ti[1]=0;
- *num=n;
- }
+void DES_ofb64_encrypt(register const unsigned char *in,
+ register unsigned char *out, long length,
+ DES_key_schedule *schedule, DES_cblock *ivec, int *num)
+{
+ register DES_LONG v0, v1, t;
+ register int n = *num;
+ register long l = length;
+ DES_cblock d;
+ register unsigned char *dp;
+ DES_LONG ti[2];
+ unsigned char *iv;
+ int save = 0;