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iceman1001 2024-02-15 18:11:46 +01:00
commit 63360b034d
1 changed files with 44 additions and 10 deletions
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54
client/src/cmddata.c
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@ -3684,33 +3684,55 @@ static int CmdCryptography(const char *Cmd) {
// Do data length check
if ((type & 0x4) >> 2) { // Use AES(0) or DES(1)?
if (datilen % 8 != 0) {
PrintAndLogEx(ERR, "<data> length must be a multiple of 8. Got %d", datilen);
return PM3_EINVARG;
}
if (keylen != 8 && keylen != 16 && keylen != 24) {
PrintAndLogEx(ERR, "<key> must be 8, 16 or 24 bytes. Got %d", keylen);
return PM3_EINVARG;
}
} else {
if (datilen % 16 != 0 && ((type & 0x2) >> 1 == 0)) {
PrintAndLogEx(ERR, "<data> length must be a multiple of 16. Got %d", datilen);
return PM3_EINVARG;
}
if (keylen != 16) {
PrintAndLogEx(ERR, "<key> must be 16 bytes. Got %d", keylen);
return PM3_EINVARG;
}
}
if ((type & 0x8) >> 3) { // Encrypt(0) or decrypt(1)?
// Encrypt(0) or decrypt(1)?
if ((type & 0x8) >> 3) {
if ((type & 0x4) >> 2) { // AES or DES?
if (keylen > 8) {PrintAndLogEx(INFO, "Called 3DES decrypt"); des3_decrypt(dato, dati, key, keylen / 8);}
else {
if (keylen > 8) {
PrintAndLogEx(INFO, "Called 3DES decrypt");
des3_decrypt(dato, dati, key, keylen / 8);
} else {
PrintAndLogEx(INFO, "Called DES decrypt");
if (!ivlen) {des_decrypt_ecb(dato, dati, datilen, key);} // If there's an IV, use CBC
else {des_decrypt_cbc(dato, dati, datilen, key, iv);}
if (ivlen == 0) {
// If there's an IV, use CBC
des_decrypt_ecb(dato, dati, datilen, key);
} else {
des_decrypt_cbc(dato, dati, datilen, key, iv);
}
}
} else {PrintAndLogEx(INFO, "Called AES decrypt"); aes_decode(iv, key, dati, dato, datilen);}
} else {
PrintAndLogEx(INFO, "Called AES decrypt");
aes_decode(iv, key, dati, dato, datilen);
}
} else {
if (type & 0x4) { // AES or DES?
if (type & 0x02) { // If we will calculate a MAC
@ -3735,13 +3757,18 @@ static int CmdCryptography(const char *Cmd) {
PrintAndLogEx(INFO, "Not implemented yet - feel free to contribute!");
return PM3_SUCCESS;
} else {
if (keylen > 8) {
PrintAndLogEx(INFO, "Called 3DES encrypt keysize: %i", keylen / 8);
des3_encrypt(dato, dati, key, keylen / 8);
} else {
PrintAndLogEx(INFO, "Called DES encrypt");
if (!ivlen) {des_encrypt_ecb(dato, dati, datilen, key);} // If there's an IV, use ECB
else {
if (ivlen == 0) {
// If there's an IV, use ECB
des_encrypt_ecb(dato, dati, datilen, key);
} else {
des_encrypt_cbc(dato, dati, datilen, key, iv);
char pad[250];
memset(pad, ' ', 4 + 8 + (datilen - 8) * 3);
@ -3751,8 +3778,15 @@ static int CmdCryptography(const char *Cmd) {
}
}
} else {
if (type & 0x02) {PrintAndLogEx(INFO, "Called AES CMAC"); aes_cmac8(iv, key, dati, dato, datilen);} // If we will calculate a MAC
else {PrintAndLogEx(INFO, "Called AES encrypt"); aes_encode(iv, key, dati, dato, datilen);}
if (type & 0x02) {
PrintAndLogEx(INFO, "Called AES CMAC");
// If we will calculate a MAC
aes_cmac8(iv, key, dati, dato, datilen);
} else {
PrintAndLogEx(INFO, "Called AES encrypt");
aes_encode(iv, key, dati, dato, datilen);
}
}
}
PrintAndLogEx(SUCCESS, "Result: %s", sprint_hex(dato, datilen));