crypto/des/destest.c:859: error: BUFFER_OVERRUN_L2
  Offset: [-4, 25] Size: 16 by call to `des_cfb64_encrypt`.
Showing all 10 steps of the trace


crypto/des/destest.c:851:1: Array declaration
849.   	}
850.   
851. > static int cfb64_test(unsigned char *cfb_cipher)
852.   	{
853.   	des_key_schedule ks;

crypto/des/destest.c:859:2: Call
857.   	memcpy(cfb_tmp,cfb_iv,sizeof(cfb_iv));
858.   	n=0;
859.   	des_cfb64_encrypt(plain,cfb_buf1,12,ks,&cfb_tmp,&n,DES_ENCRYPT);
        ^
860.   	des_cfb64_encrypt(&(plain[12]),&(cfb_buf1[12]),sizeof(plain)-12,ks,
861.   			  &cfb_tmp,&n,DES_ENCRYPT);

crypto/des/cfb64enc.c:66:1: Parameter `*schedule`
  64.    */
  65.   
  66. > void des_cfb64_encrypt(const unsigned char *in, unsigned char *out,
  67.   	     long length, des_key_schedule schedule, des_cblock *ivec,
  68.   	     int *num, int enc)

crypto/des/cfb64enc.c:85:5: Call
  83.   				c2l(iv,v0); ti[0]=v0;
  84.   				c2l(iv,v1); ti[1]=v1;
  85.   				des_encrypt(ti,schedule,DES_ENCRYPT);
            ^
  86.   				iv = &(*ivec)[0];
  87.   				v0=ti[0]; l2c(v0,iv);

crypto/des/des_enc.c:139:8: <Offset trace>
137.   		D_ENCRYPT(r,l, 0); /*  1 */
138.   #else
139.   		for (i=30; i>0; i-=8)
              ^
140.   			{
141.   			D_ENCRYPT(l,r,i-0); /* 16 */

crypto/des/des_enc.c:139:8: Assignment
    137.   		D_ENCRYPT(r,l, 0); /*  1 */
    138.   #else
    139.   		for (i=30; i>0; i-=8)
                  ^
    140.   			{
    141.   			D_ENCRYPT(l,r,i-0); /* 16 */

crypto/des/des_enc.c:61:1: <Length trace>
59.   #include "des_locl.h"
60.   
61. > void des_encrypt(DES_LONG *data, des_key_schedule ks, int enc)
62.   	{
63.   	register DES_LONG l,r,t,u;

crypto/des/des_enc.c:61:1: Parameter `*ks`
    59.   #include "des_locl.h"
    60.   
    61. > void des_encrypt(DES_LONG *data, des_key_schedule ks, int enc)
    62.   	{
    63.   	register DES_LONG l,r,t,u;

crypto/des/des_enc.c:87:2: Assignment
    85.   	l=ROTATE(l,29)&0xffffffffL;
    86.   
    87.   	s=(DES_LONG *)ks;
           ^
    88.   	/* I don't know if it is worth the effort of loop unrolling the
    89.   	 * inner loop */

crypto/des/des_enc.c:144:4: Array access: Offset: [-4, 25] Size: 16 by call to `des_cfb64_encrypt` 
    142.   			D_ENCRYPT(r,l,i-2); /* 15 */
    143.   			D_ENCRYPT(l,r,i-4); /* 14 */
    144.   			D_ENCRYPT(r,l,i-6); /* 13 */
              ^
    145.   			}
    146.   #endif

void des_encrypt(DES_LONG *data, des_key_schedule ks, int enc)
	{
	register DES_LONG l,r,t,u;
#ifdef DES_PTR
	register const unsigned char *des_SP=(const unsigned char *)des_SPtrans;
#endif
#ifndef DES_UNROLL
	register int i;
#endif
	register DES_LONG *s;
	r=data[0];
	l=data[1];
	IP(r,l);
	r=ROTATE(r,29)&0xffffffffL;
	l=ROTATE(l,29)&0xffffffffL;
	s=(DES_LONG *)ks;
	if (enc)
		{
#ifdef DES_UNROLL
		D_ENCRYPT(l,r, 0);
		D_ENCRYPT(r,l, 2);
		D_ENCRYPT(l,r, 4);
		D_ENCRYPT(r,l, 6);
		D_ENCRYPT(l,r, 8);
		D_ENCRYPT(r,l,10);
		D_ENCRYPT(l,r,12);
		D_ENCRYPT(r,l,14);
		D_ENCRYPT(l,r,16);
		D_ENCRYPT(r,l,18);
		D_ENCRYPT(l,r,20);
		D_ENCRYPT(r,l,22);
		D_ENCRYPT(l,r,24);
		D_ENCRYPT(r,l,26);
		D_ENCRYPT(l,r,28);
		D_ENCRYPT(r,l,30);
#else
		for (i=0; i<32; i+=8)
			{
			D_ENCRYPT(l,r,i+0);
			D_ENCRYPT(r,l,i+2);
			D_ENCRYPT(l,r,i+4);
			D_ENCRYPT(r,l,i+6);
			}
#endif
		}
	else
		{
#ifdef DES_UNROLL
		D_ENCRYPT(l,r,30);
		D_ENCRYPT(r,l,28);
		D_ENCRYPT(l,r,26);
		D_ENCRYPT(r,l,24);
		D_ENCRYPT(l,r,22);
		D_ENCRYPT(r,l,20);
		D_ENCRYPT(l,r,18);
		D_ENCRYPT(r,l,16);
		D_ENCRYPT(l,r,14);
		D_ENCRYPT(r,l,12);
		D_ENCRYPT(l,r,10);
		D_ENCRYPT(r,l, 8);
		D_ENCRYPT(l,r, 6);
		D_ENCRYPT(r,l, 4);
		D_ENCRYPT(l,r, 2);
		D_ENCRYPT(r,l, 0);
#else
		for (i=30; i>0; i-=8)
			{
			D_ENCRYPT(l,r,i-0);
			D_ENCRYPT(r,l,i-2);
			D_ENCRYPT(l,r,i-4);
			D_ENCRYPT(r,l,i-6);
			}
#endif
		}
	l=ROTATE(l,3)&0xffffffffL;
	r=ROTATE(r,3)&0xffffffffL;
	FP(r,l);
	data[0]=l;
	data[1]=r;
	l=r=t=u=0;
	}
['static int cfb64_test(unsigned char *cfb_cipher)\n\t{\n\tdes_key_schedule ks;\n\tint err=0,i,n;\n\tdes_key_sched(&cfb_key,ks);\n\tmemcpy(cfb_tmp,cfb_iv,sizeof(cfb_iv));\n\tn=0;\n\tdes_cfb64_encrypt(plain,cfb_buf1,12,ks,&cfb_tmp,&n,DES_ENCRYPT);\n\tdes_cfb64_encrypt(&(plain[12]),&(cfb_buf1[12]),sizeof(plain)-12,ks,\n\t\t\t  &cfb_tmp,&n,DES_ENCRYPT);\n\tif (memcmp(cfb_cipher,cfb_buf1,sizeof(plain)) != 0)\n\t\t{\n\t\terr=1;\n\t\tprintf("cfb_encrypt encrypt error\\n");\n\t\tfor (i=0; i<24; i+=8)\n\t\t\tprintf("%s\\n",pt(&(cfb_buf1[i])));\n\t\t}\n\tmemcpy(cfb_tmp,cfb_iv,sizeof(cfb_iv));\n\tn=0;\n\tdes_cfb64_encrypt(cfb_buf1,cfb_buf2,17,ks,&cfb_tmp,&n,DES_DECRYPT);\n\tdes_cfb64_encrypt(&(cfb_buf1[17]),&(cfb_buf2[17]),\n\t\t\t  sizeof(plain)-17,ks,&cfb_tmp,&n,DES_DECRYPT);\n\tif (memcmp(plain,cfb_buf2,sizeof(plain)) != 0)\n\t\t{\n\t\terr=1;\n\t\tprintf("cfb_encrypt decrypt error\\n");\n\t\tfor (i=0; i<24; i+=8)\n\t\t\tprintf("%s\\n",pt(&(cfb_buf2[i])));\n\t\t}\n\treturn(err);\n\t}', 'void des_cfb64_encrypt(const unsigned char *in, unsigned char *out,\n\t     long length, des_key_schedule schedule, des_cblock *ivec,\n\t     int *num, int enc)\n\t{\n\tregister DES_LONG v0,v1;\n\tregister long l=length;\n\tregister int n= *num;\n\tDES_LONG ti[2];\n\tunsigned char *iv,c,cc;\n\tiv = &(*ivec)[0];\n\tif (enc)\n\t\t{\n\t\twhile (l--)\n\t\t\t{\n\t\t\tif (n == 0)\n\t\t\t\t{\n\t\t\t\tc2l(iv,v0); ti[0]=v0;\n\t\t\t\tc2l(iv,v1); ti[1]=v1;\n\t\t\t\tdes_encrypt(ti,schedule,DES_ENCRYPT);\n\t\t\t\tiv = &(*ivec)[0];\n\t\t\t\tv0=ti[0]; l2c(v0,iv);\n\t\t\t\tv0=ti[1]; l2c(v0,iv);\n\t\t\t\tiv = &(*ivec)[0];\n\t\t\t\t}\n\t\t\tc= *(in++)^iv[n];\n\t\t\t*(out++)=c;\n\t\t\tiv[n]=c;\n\t\t\tn=(n+1)&0x07;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\twhile (l--)\n\t\t\t{\n\t\t\tif (n == 0)\n\t\t\t\t{\n\t\t\t\tc2l(iv,v0); ti[0]=v0;\n\t\t\t\tc2l(iv,v1); ti[1]=v1;\n\t\t\t\tdes_encrypt(ti,schedule,DES_ENCRYPT);\n\t\t\t\tiv = &(*ivec)[0];\n\t\t\t\tv0=ti[0]; l2c(v0,iv);\n\t\t\t\tv0=ti[1]; l2c(v0,iv);\n\t\t\t\tiv = &(*ivec)[0];\n\t\t\t\t}\n\t\t\tcc= *(in++);\n\t\t\tc=iv[n];\n\t\t\tiv[n]=cc;\n\t\t\t*(out++)=c^cc;\n\t\t\tn=(n+1)&0x07;\n\t\t\t}\n\t\t}\n\tv0=v1=ti[0]=ti[1]=c=cc=0;\n\t*num=n;\n\t}', 'void des_encrypt(DES_LONG *data, des_key_schedule ks, int enc)\n\t{\n\tregister DES_LONG l,r,t,u;\n#ifdef DES_PTR\n\tregister const unsigned char *des_SP=(const unsigned char *)des_SPtrans;\n#endif\n#ifndef DES_UNROLL\n\tregister int i;\n#endif\n\tregister DES_LONG *s;\n\tr=data[0];\n\tl=data[1];\n\tIP(r,l);\n\tr=ROTATE(r,29)&0xffffffffL;\n\tl=ROTATE(l,29)&0xffffffffL;\n\ts=(DES_LONG *)ks;\n\tif (enc)\n\t\t{\n#ifdef DES_UNROLL\n\t\tD_ENCRYPT(l,r, 0);\n\t\tD_ENCRYPT(r,l, 2);\n\t\tD_ENCRYPT(l,r, 4);\n\t\tD_ENCRYPT(r,l, 6);\n\t\tD_ENCRYPT(l,r, 8);\n\t\tD_ENCRYPT(r,l,10);\n\t\tD_ENCRYPT(l,r,12);\n\t\tD_ENCRYPT(r,l,14);\n\t\tD_ENCRYPT(l,r,16);\n\t\tD_ENCRYPT(r,l,18);\n\t\tD_ENCRYPT(l,r,20);\n\t\tD_ENCRYPT(r,l,22);\n\t\tD_ENCRYPT(l,r,24);\n\t\tD_ENCRYPT(r,l,26);\n\t\tD_ENCRYPT(l,r,28);\n\t\tD_ENCRYPT(r,l,30);\n#else\n\t\tfor (i=0; i<32; i+=8)\n\t\t\t{\n\t\t\tD_ENCRYPT(l,r,i+0);\n\t\t\tD_ENCRYPT(r,l,i+2);\n\t\t\tD_ENCRYPT(l,r,i+4);\n\t\t\tD_ENCRYPT(r,l,i+6);\n\t\t\t}\n#endif\n\t\t}\n\telse\n\t\t{\n#ifdef DES_UNROLL\n\t\tD_ENCRYPT(l,r,30);\n\t\tD_ENCRYPT(r,l,28);\n\t\tD_ENCRYPT(l,r,26);\n\t\tD_ENCRYPT(r,l,24);\n\t\tD_ENCRYPT(l,r,22);\n\t\tD_ENCRYPT(r,l,20);\n\t\tD_ENCRYPT(l,r,18);\n\t\tD_ENCRYPT(r,l,16);\n\t\tD_ENCRYPT(l,r,14);\n\t\tD_ENCRYPT(r,l,12);\n\t\tD_ENCRYPT(l,r,10);\n\t\tD_ENCRYPT(r,l, 8);\n\t\tD_ENCRYPT(l,r, 6);\n\t\tD_ENCRYPT(r,l, 4);\n\t\tD_ENCRYPT(l,r, 2);\n\t\tD_ENCRYPT(r,l, 0);\n#else\n\t\tfor (i=30; i>0; i-=8)\n\t\t\t{\n\t\t\tD_ENCRYPT(l,r,i-0);\n\t\t\tD_ENCRYPT(r,l,i-2);\n\t\t\tD_ENCRYPT(l,r,i-4);\n\t\t\tD_ENCRYPT(r,l,i-6);\n\t\t\t}\n#endif\n\t\t}\n\tl=ROTATE(l,3)&0xffffffffL;\n\tr=ROTATE(r,3)&0xffffffffL;\n\tFP(r,l);\n\tdata[0]=l;\n\tdata[1]=r;\n\tl=r=t=u=0;\n\t}']