chg: trying to generalize the EMV build.

[proxmark3-svn] / client / cmdanalyse.c

diff --git a/client/cmdanalyse.c b/client/cmdanalyse.c
index 3f967ac66a39de0069e1e43cf008d021f7fe9e83..36ef3aa724d34dc062aeb5b73dfe3838fcbafd10 100644 (file)
--- a/client/cmdanalyse.c
+++ b/client/cmdanalyse.c
@@ -101,13 +101,24 @@ static uint8_t calcSumNibbleAdd( uint8_t* bytes, uint8_t len, uint32_t mask) {
 static uint8_t calcSumNibbleAddOnes( uint8_t* bytes, uint8_t len, uint32_t mask){
        return ~calcSumNibbleAdd(bytes, len, mask);
 }
+static uint8_t calcSumCrumbXor(  uint8_t* bytes, uint8_t len, uint32_t mask) {
+    uint8_t sum = 0;
+    for (uint8_t i = 0; i < len; i++) {
+        sum ^= CRUMB(bytes[i], 0);
+               sum ^= CRUMB(bytes[i], 2);
+               sum ^= CRUMB(bytes[i], 4);
+               sum ^= CRUMB(bytes[i], 6);
+       }       
+       sum &= mask;
+    return sum;
+}
 static uint8_t calcSumNibbleXor( uint8_t* bytes, uint8_t len, uint32_t mask) {
     uint8_t sum = 0;
     for (uint8_t i = 0; i < len; i++) {
         sum ^= NIBBLE_LOW(bytes[i]);
                sum ^= NIBBLE_HIGH(bytes[i]);
        }
-       sum &= mask;    
+       sum &= mask;
     return sum;
 }
 static uint8_t calcSumByteXor( uint8_t* bytes, uint8_t len, uint32_t mask) {
@@ -248,7 +259,7 @@ int CmdAnalyseCHKSUM(const char *Cmd){
        
        uint8_t data[50];
        uint8_t cmdp = 0;
-       uint32_t mask = 0xFF;
+       uint32_t mask = 0xFFFF;
        bool errors = false;
        int len = 0;
        memset(data, 0x0, sizeof(data));
@@ -280,25 +291,24 @@ int CmdAnalyseCHKSUM(const char *Cmd){
        //Validations
        if(errors) return usage_analyse_checksum();
        
-       PrintAndLog("\nByte Add        | 0x%X", calcSumByteAdd(data, len, mask));
-       PrintAndLog("Nibble Add      | 0x%X", calcSumNibbleAdd(data, len, mask));
-       PrintAndLog("Crumb Add       | 0x%X", calcSumCrumbAdd(data, len, mask));
-       
-       PrintAndLog("\nByte Subtract   | 0x%X", calcSumByteSub(data, len, mask));
-       PrintAndLog("Nibble Subtract | 0x%X", calcSumNibbleSub(data, len, mask));
-       
-       PrintAndLog("\nCHECKSUM - One's complement");
-       PrintAndLog("Byte Add        | 0x%X", calcSumByteAddOnes(data, len, mask));
-       PrintAndLog("Nibble Add      | 0x%X", calcSumNibbleAddOnes(data, len, mask));
-       PrintAndLog("Crumb Add       | 0x%X", calcSumCrumbAddOnes(data, len, mask));
-
-       PrintAndLog("Byte Subtract   | 0x%X", calcSumByteSubOnes(data, len, mask));
-       PrintAndLog("Nibble Subtract | 0x%X", calcSumNibbleSubOnes(data, len, mask));
-       
-       PrintAndLog("\nXOR");
-       PrintAndLog("Byte Xor   | 0x%X", calcSumByteXor(data, len, mask));
-       PrintAndLog("Nibble Xor   | 0x%X", calcSumNibbleXor(data, len, mask));
-       
+       PrintAndLog("     add          | sub         | add 1's compl    | sub 1's compl   | xor");
+       PrintAndLog("byte nibble crumb | byte nibble | byte nibble cumb | byte nibble     | byte nibble cumb");
+       PrintAndLog("------------------+-------------+------------------+-----------------+--------------------");
+       PrintAndLog("0x%02X 0x%02X   0x%02X  | 0x%02X 0x%02X   | 0x%02X 0x%02X   0x%02X | 0x%02X 0x%02X       | 0x%02X 0x%02X   0x%02X",
+                                 calcSumByteAdd(data, len, mask)
+                               , calcSumNibbleAdd(data, len, mask)
+                               , calcSumCrumbAdd(data, len, mask)
+                               , calcSumByteSub(data, len, mask)
+                               , calcSumNibbleSub(data, len, mask)
+                               , calcSumByteAddOnes(data, len, mask)
+                               , calcSumNibbleAddOnes(data, len, mask)
+                               , calcSumCrumbAddOnes(data, len, mask)
+                               , calcSumByteSubOnes(data, len, mask)
+                               , calcSumNibbleSubOnes(data, len, mask)
+                               , calcSumByteXor(data, len, mask)
+                               , calcSumNibbleXor(data, len, mask)
+                               , calcSumCrumbXor(data, len, mask)
+                       );      
        return 0;
 }
 
@@ -445,6 +455,9 @@ static void generate(uint8_t *data, uint8_t len) {
 }
 int CmdAnalyseHid(const char *Cmd){
 
+       uint8_t key[8] = {0};   
+       uint8_t key_std_format[8] = {0};
+       uint8_t key_iclass_format[8] = {0};
        uint8_t data[16] = {0};
        bool isReverse = FALSE;
        int len = 0;
@@ -457,12 +470,20 @@ int CmdAnalyseHid(const char *Cmd){
        param_gethex_ex(Cmd, 1, data, &len);
        if ( len%2 ) return usage_analyse_hid();
        
-       len >>= 1;
-       
-       if ( isReverse )
+       len >>= 1;      
+
+       memcpy(key, data, 8);
+
+       if ( isReverse ) {
                generate_rev(data, len);
-       else 
+               permutekey_rev(key, key_std_format);
+               printf(" holiman iclass key | %s \n", sprint_hex(key_std_format, 8));
+       }
+       else {
                generate(data, len);
+               permutekey(key, key_iclass_format);             
+               printf(" holiman std key | %s \n", sprint_hex(key_iclass_format, 8));
+       }
        return 0;
 }