first anyone know how to put this in masm syntax:
unsigned char sKey[16]={ 0xa3,0x1e,0xf3,0x69,
0x07,0x62,0xd9,0x1f,
0x4f,0xd2,0x7d,0x48 };
if anyone has experience using a data blob structs in masm using CryptUnprotectData
please let me know
kinda like this http://msdn.microsoft.com/en-us/library/aa380882(VS.85).aspx
DATA_BLOB DataIn, DataEntropy, DataOut;
if (CryptUnprotectData(&DataIn, // input data
NULL, // output description
&DataEntropy, // optional entropy
NULL, // reserved
NULL, // optional prompt structure
1, // flags
&DataOut);
{
printf("The decrypted data is: %s\n", DataOut.pbData);
}
else
{
printf("Decryption error!");
}
im thiking the masm code would kinda look like this
struct DATA_BLOB
cbData dd ?
pbData dd ?
ends
DataOut DATA_BLOB
DataIn DATA_BLOB
mov [DataIn.cbData],edx
mov [DataIn.pbData] ,esi
invoke CryptUnprotectData,tBlobIn, 0, DataEntropy, 0, 0, 1, DataOut
Invoke wsprintf,addr buffer,CTXT("The decrypted data is: %s"),[DataOut.cbData]
Quote from: ChillyWilly on April 15, 2010, 03:54:45 AM
first anyone know how to put this in masm syntax:
unsigned char sKey[16]={ 0xa3,0x1e,0xf3,0x69,
0x07,0x62,0xd9,0x1f,
0x4f,0xd2,0x7d,0x48 };
Is it legal to define a 16 byte array with 12 bytes? i think my compiler would give a warning or error. not sure if you need to pad in the front or back. but something similar to
.data
sKey db 0A3h,01Eh,0F3h,069h,007h,062h,0D9h,01Fh,04Fh,0D2h,07Dh,048h
delete
Quote from: ChillyWilly on April 15, 2010, 03:54:45 AM
first anyone know how to put this in masm syntax:
unsigned char sKey[16]={ 0xa3,0x1e,0xf3,0x69,
0x07,0x62,0xd9,0x1f,
0x4f,0xd2,0x7d,0x48 };
if anyone has experience using a data blob structs in masm using CryptUnprotectData
please let me know
sKey db 0a3h, 1eh, ..., 0,0,0,0
Your DATA_BLOB looks fine, what's the problem?