[RESOLVED] what exacly is this

[Cpp_Noob]

i have an encryption algorithm , and the key looks like this

unsigned char CO2feda_KBox1024[] = {
	0xAD, 0x6B, 0x4F, 0xFB, 0xDD, 0xB8, 0x0E, 0x09, 0x13, 0x33, 0x8F, 0xF5, 0x43, 0x09, 0x15, 0x88,
	0x5D, 0x80, 0xA3, 0x45, 0x2D, 0x42, 0x08, 0x56, 0x80, 0xF8, 0x19, 0xC5, 0x88, 0x1B, 0x3E, 0xEF,
	0x81, 0x07, 0x30, 0x36, 0x95, 0x52, 0x00, 0xF7, 0xFD, 0x5B, 0x5C, 0xBC, 0x6A, 0x26, 0x0E, 0xB2,
	0xA3, 0x67, 0xC5, 0x5D, 0x6F, 0xDC, 0x18, 0x8A, 0xB5, 0xE0, 0xC8, 0x85, 0xE2, 0x3E, 0x45, 0x8D,
	0x8B, 0x43, 0x74, 0x85, 0x54, 0x17, 0xB0, 0xEC, 0x10, 0x4D, 0x0F, 0x0F, 0x29, 0xB8, 0xE6, 0x7D,
	0x42, 0x80, 0x8F, 0xBC, 0x1C, 0x76, 0x69, 0x3A, 0xB6, 0xA5, 0x21, 0x86, 0xB9, 0x29, 0x30, 0xC0,
	0x12, 0x45, 0xA5, 0x4F, 0xE1, 0xAF, 0x25, 0xD1, 0x92, 0x2E, 0x30, 0x58, 0x49, 0x67, 0xA5, 0xD3,
	0x84, 0xF4, 0x89, 0xCA, 0xFC, 0xB7, 0x04, 0x4F, 0xCC, 0x6E, 0xAC, 0x31, 0xD4, 0x87, 0x07, 0x72
};

i cannot use a string as a key ex: "this is my key" but only the above key, otherwise the algorithm fails

my question is what exactly is that key , is it an array of a string a and each character is a hex value into that array?

if so how can i convert a "normal" string like ("this is my key") into that?

[Paul McKenzie]

Look at the definition:

unsigned char CO2feda_KBox1024[]

This is just an array of unsigned char.

Nothing stops you from using a char literal or its equivalent hex, decimal, or octal value in the initializer for the array (if that's what you're confused about)

Regards,

Paul McKenzie

[Cpp_Noob]

thanks Paul McKenzie for clearing that up! i think what actually made the algorithm fail was the key size, it should be 128 bytes