Add code that fails to parse the Proxmark APDU EMVs

test_emv_proxmark.js

@@ -0,0 +1,42 @@
+// Decrypted SDAD:
+const assert = require('assert');
+const crypto = require('crypto');
+var decryptedSDAD = new Uint8Array([0x6A, 0x05, 0x01, 0x26, 0x08, 0xAD, 0xB1, 0xE0, 0x39, 0x64, 0x21, 0xBF, 0xB4, 0x80, 0x42, 0x2B, 0x7D, 0xB2, 0xC5, 0xB3, 0x52, 0xBE, 0x3F, 0x86, 0xBA, 0xA5, 0xD8, 0xA9, 0x4C, 0xE2, 0x0D, 0x94, 0x87, 0x79, 0xB9, 0x3F, 0x4B, 0xD4, 0xCE, 0x17, 0x53, 0x5E]);
+
+//Step 1: SDAD and ICC Public Key Modulus have the same length
+// assert(SDAD.length == iccPublicKeyModulus.length);
+
+//Step 2: The Recovered Data Trailer is equal to 'BC'
+// assert(decryptedSDAD[decryptedSDAD.length - 1] == 0xBC);
+
+//Step 3: The Recovered Data Header is equal to '6A'
+assert(decryptedSDAD[0] == 0x6A);
+
+//Step 4: The Signed Data Format is equal to '05'
+assert(decryptedSDAD[1] == 0x05);
+
+//Step 5: Concatenation of Signed Data Format, Hash Algorithm Indicator,
+//        ICC Dynamic Data Length, ICC Dynamic Data, Pad Pattern, random number
+var LDD = decryptedSDAD[3];
+var list = decryptedSDAD.slice(1, 3 + LDD + decryptedSDAD.length - LDD - 25);
+while(list.length < 123) {
+    list = [...list, 0xBB];
+}
+list = [...list, 0x29, 0x21, 0x8F, 0xCE, 0xB5, 0x48, 0xBE, 0x5F];
+
+// list = list.concat(Data);
+
+//Step 6: Generate hash from concatenation
+// Hash the bytes directly
+var hash = crypto.createHash('sha1');
+hash.update(Buffer.from(list));
+var hashConcat = hash.digest();
+
+//Step 7: Compare recovered hash with generated hash
+console.log(decryptedSDAD);
+var hashSDAD = decryptedSDAD.slice(decryptedSDAD.length - 20, decryptedSDAD.length);
+console.log(hashSDAD);
+console.log(Array.from(hashConcat));
+assert(hashConcat.equals(Buffer.from(hashSDAD)));
+console.log("DDA was successful");	
+