release/src/router/dnscrypt/src/libnacl/crypto_box/try.c

   1 /*
   2  * crypto_box/try.c version 20090118
   3  * D. J. Bernstein
   4  * Public domain.
   5  */
   6
   7 #include "crypto_box.h"
   8 #include "windows/windows-quirks.h"
   9
  10 extern unsigned char *alignedcalloc(unsigned long long);
  11
  12 const char *primitiveimplementation = crypto_box_IMPLEMENTATION;
  13
  14 #define MAXTEST_BYTES 10000
  15 #define CHECKSUM_BYTES 4096
  16 #define TUNE_BYTES 1536
  17
  18 static unsigned char *ska;
  19 static unsigned char *pka;
  20 static unsigned char *skb;
  21 static unsigned char *pkb;
  22 static unsigned char *s;
  23 static unsigned char *n;
  24 static unsigned char *m;
  25 static unsigned char *c;
  26 static unsigned char *t;
  27 static unsigned char *ska2;
  28 static unsigned char *pka2;
  29 static unsigned char *skb2;
  30 static unsigned char *pkb2;
  31 static unsigned char *s2;
  32 static unsigned char *n2;
  33 static unsigned char *m2;
  34 static unsigned char *c2;
  35 static unsigned char *t2;
  36
  37 #define sklen crypto_box_SECRETKEYBYTES
  38 #define pklen crypto_box_PUBLICKEYBYTES
  39 #define nlen crypto_box_NONCEBYTES
  40 #define slen crypto_box_BEFORENMBYTES
  41
  42 void preallocate(void)
  43 {
  44 }
  45
  46 void allocate(void)
  47 {
  48   ska = alignedcalloc(sklen);
  49   pka = alignedcalloc(pklen);
  50   skb = alignedcalloc(sklen);
  51   pkb = alignedcalloc(pklen);
  52   n = alignedcalloc(nlen);
  53   m = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  54   c = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  55   t = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  56   s = alignedcalloc(slen);
  57   ska2 = alignedcalloc(sklen);
  58   pka2 = alignedcalloc(pklen);
  59   skb2 = alignedcalloc(sklen);
  60   pkb2 = alignedcalloc(pklen);
  61   n2 = alignedcalloc(nlen);
  62   m2 = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  63   c2 = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  64   t2 = alignedcalloc(MAXTEST_BYTES + crypto_box_ZEROBYTES);
  65   s2 = alignedcalloc(slen);
  66 }
  67
  68 void predoit(void)
  69 {
  70 }
  71
  72 void doit(void)
  73 {
  74   crypto_box(c,m,TUNE_BYTES + crypto_box_ZEROBYTES,n,pka,skb);
  75   crypto_box_open(t,c,TUNE_BYTES + crypto_box_ZEROBYTES,n,pkb,ska);
  76 }
  77
  78 char checksum[nlen * 2 + 1];
  79
  80 const char *checksum_compute(void)
  81 {
  82   long long i;
  83   long long j;
  84
  85   if (crypto_box_keypair(pka,ska) != 0) return "crypto_box_keypair returns nonzero";
  86   if (crypto_box_keypair(pkb,skb) != 0) return "crypto_box_keypair returns nonzero";
  87
  88   for (j = 0;j < crypto_box_ZEROBYTES;++j) m[j] = 0;
  89
  90   for (i = 0;i < CHECKSUM_BYTES;++i) {
  91     long long mlen = i + crypto_box_ZEROBYTES;
  92     long long tlen = i + crypto_box_ZEROBYTES;
  93     long long clen = i + crypto_box_ZEROBYTES;
  94
  95     for (j = -16;j < 0;++j) ska[j] = random();
  96     for (j = -16;j < 0;++j) skb[j] = random();
  97     for (j = -16;j < 0;++j) pka[j] = random();
  98     for (j = -16;j < 0;++j) pkb[j] = random();
  99     for (j = -16;j < 0;++j) m[j] = random();
 100     for (j = -16;j < 0;++j) n[j] = random();
 101
 102     for (j = sklen;j < sklen + 16;++j) ska[j] = random();
 103     for (j = sklen;j < sklen + 16;++j) skb[j] = random();
 104     for (j = pklen;j < pklen + 16;++j) pka[j] = random();
 105     for (j = pklen;j < pklen + 16;++j) pkb[j] = random();
 106     for (j = mlen;j < mlen + 16;++j) m[j] = random();
 107     for (j = nlen;j < nlen + 16;++j) n[j] = random();
 108
 109     for (j = -16;j < sklen + 16;++j) ska2[j] = ska[j];
 110     for (j = -16;j < sklen + 16;++j) skb2[j] = skb[j];
 111     for (j = -16;j < pklen + 16;++j) pka2[j] = pka[j];
 112     for (j = -16;j < pklen + 16;++j) pkb2[j] = pkb[j];
 113     for (j = -16;j < mlen + 16;++j) m2[j] = m[j];
 114     for (j = -16;j < nlen + 16;++j) n2[j] = n[j];
 115     for (j = -16;j < clen + 16;++j) c2[j] = c[j] = random();
 116
 117     if (crypto_box(c,m,mlen,n,pkb,ska) != 0) return "crypto_box returns nonzero";
 118
 119     for (j = -16;j < mlen + 16;++j) if (m2[j] != m[j]) return "crypto_box overwrites m";
 120     for (j = -16;j < nlen + 16;++j) if (n2[j] != n[j]) return "crypto_box overwrites n";
 121     for (j = -16;j < 0;++j) if (c2[j] != c[j]) return "crypto_box writes before output";
 122     for (j = clen;j < clen + 16;++j) if (c2[j] != c[j]) return "crypto_box writes after output";
 123     for (j = 0;j < crypto_box_BOXZEROBYTES;++j)
 124       if (c[j] != 0) return "crypto_box does not clear extra bytes";
 125
 126     for (j = -16;j < sklen + 16;++j) if (ska2[j] != ska[j]) return "crypto_box overwrites ska";
 127     for (j = -16;j < sklen + 16;++j) if (skb2[j] != skb[j]) return "crypto_box overwrites skb";
 128     for (j = -16;j < pklen + 16;++j) if (pka2[j] != pka[j]) return "crypto_box overwrites pka";
 129     for (j = -16;j < pklen + 16;++j) if (pkb2[j] != pkb[j]) return "crypto_box overwrites pkb";
 130
 131     for (j = -16;j < 0;++j) c[j] = random();
 132     for (j = clen;j < clen + 16;++j) c[j] = random();
 133     for (j = -16;j < clen + 16;++j) c2[j] = c[j];
 134     for (j = -16;j < tlen + 16;++j) t2[j] = t[j] = random();
 135
 136     if (crypto_box_open(t,c,clen,n,pka,skb) != 0) return "crypto_box_open returns nonzero";
 137
 138     for (j = -16;j < clen + 16;++j) if (c2[j] != c[j]) return "crypto_box_open overwrites c";
 139     for (j = -16;j < nlen + 16;++j) if (n2[j] != n[j]) return "crypto_box_open overwrites n";
 140     for (j = -16;j < 0;++j) if (t2[j] != t[j]) return "crypto_box_open writes before output";
 141     for (j = tlen;j < tlen + 16;++j) if (t2[j] != t[j]) return "crypto_box_open writes after output";
 142     for (j = 0;j < crypto_box_ZEROBYTES;++j)
 143       if (t[j] != 0) return "crypto_box_open does not clear extra bytes";
 144
 145     for (j = -16;j < sklen + 16;++j) if (ska2[j] != ska[j]) return "crypto_box_open overwrites ska";
 146     for (j = -16;j < sklen + 16;++j) if (skb2[j] != skb[j]) return "crypto_box_open overwrites skb";
 147     for (j = -16;j < pklen + 16;++j) if (pka2[j] != pka[j]) return "crypto_box_open overwrites pka";
 148     for (j = -16;j < pklen + 16;++j) if (pkb2[j] != pkb[j]) return "crypto_box_open overwrites pkb";
 149
 150     for (j = 0;j < mlen;++j) if (t[j] != m[j]) return "plaintext does not match";
 151
 152     for (j = -16;j < slen + 16;++j) s2[j] = s[j] = random();
 153     if (crypto_box_beforenm(s,pkb,ska) != 0) return "crypto_box_beforenm returns nonzero";
 154     for (j = -16;j < pklen + 16;++j) if (pka2[j] != pka[j]) return "crypto_box_open overwrites pk";
 155     for (j = -16;j < sklen + 16;++j) if (skb2[j] != skb[j]) return "crypto_box_open overwrites sk";
 156     for (j = -16;j < 0;++j) if (s2[j] != s[j]) return "crypto_box_beforenm writes before output";
 157     for (j = slen;j < slen + 16;++j) if (s2[j] != s[j]) return "crypto_box_beforenm writes after output";
 158
 159     for (j = -16;j < slen + 16;++j) s2[j] = s[j];
 160     for (j = -16;j < tlen + 16;++j) t2[j] = t[j] = random();
 161     if (crypto_box_afternm(t,m,mlen,n,s) != 0) return "crypto_box_afternm returns nonzero";
 162     for (j = -16;j < slen + 16;++j) if (s2[j] != s[j]) return "crypto_box_afternm overwrites s";
 163     for (j = -16;j < mlen + 16;++j) if (m2[j] != m[j]) return "crypto_box_afternm overwrites m";
 164     for (j = -16;j < nlen + 16;++j) if (n2[j] != n[j]) return "crypto_box_afternm overwrites n";
 165     for (j = -16;j < 0;++j) if (t2[j] != t[j]) return "crypto_box_afternm writes before output";
 166     for (j = tlen;j < tlen + 16;++j) if (t2[j] != t[j]) return "crypto_box_afternm writes after output";
 167     for (j = 0;j < crypto_box_BOXZEROBYTES;++j)
 168       if (t[j] != 0) return "crypto_box_afternm does not clear extra bytes";
 169     for (j = 0;j < mlen;++j) if (t[j] != c[j]) return "crypto_box_afternm does not match crypto_box";
 170
 171     if (crypto_box_beforenm(s,pka,skb) != 0) return "crypto_box_beforenm returns nonzero";
 172
 173     for (j = -16;j < tlen + 16;++j) t2[j] = t[j] = random();
 174     if (crypto_box_open_afternm(t,c,clen,n,s) != 0) return "crypto_box_open_afternm returns nonzero";
 175     for (j = -16;j < slen + 16;++j) if (s2[j] != s[j]) return "crypto_box_open_afternm overwrites s";
 176     for (j = -16;j < mlen + 16;++j) if (m2[j] != m[j]) return "crypto_box_open_afternm overwrites m";
 177     for (j = -16;j < nlen + 16;++j) if (n2[j] != n[j]) return "crypto_box_open_afternm overwrites n";
 178     for (j = -16;j < 0;++j) if (t2[j] != t[j]) return "crypto_box_open_afternm writes before output";
 179     for (j = tlen;j < tlen + 16;++j) if (t2[j] != t[j]) return "crypto_box_open_afternm writes after output";
 180     for (j = 0;j < crypto_box_ZEROBYTES;++j)
 181       if (t[j] != 0) return "crypto_box_open_afternm does not clear extra bytes";
 182     for (j = 0;j < mlen;++j) if (t[j] != m[j]) return "crypto_box_open_afternm does not match crypto_box_open";
 183
 184     for (j = 0;j < i;++j) n[j % nlen] ^= c[j + crypto_box_BOXZEROBYTES];
 185     if (i == 0) m[crypto_box_ZEROBYTES] = 0;
 186     m[i + crypto_box_ZEROBYTES] = m[crypto_box_ZEROBYTES];
 187     for (j = 0;j < i;++j) m[j + crypto_box_ZEROBYTES] ^= c[j + crypto_box_BOXZEROBYTES];
 188   }
 189
 190   for (i = 0;i < nlen;++i) {
 191     checksum[2 * i] = "0123456789abcdef"[15 & (n[i] >> 4)];
 192     checksum[2 * i + 1] = "0123456789abcdef"[15 & n[i]];
 193   }
 194   checksum[2 * i] = 0;
 195   return 0;
 196 }