6,264
edits
Changes
Jump to navigation
Jump to search
→Hardware key generator
Line 628:
Line 628:
The algorithm for generating the normal-key from keyX and keyY is as follows, in big-endian 128-bit unsigned wraparound arithmetic:
The algorithm for generating the normal-key from keyX and keyY is as follows, in big-endian 128-bit unsigned wraparound arithmetic:
−NormalKey = (((KeyX ROL 2) XOR KeyY) + C) ROL 87
+NormalKey = (((KeyX ROL 2) XOR KeyY) + C) ROL 87. "ROL 87" is equivalent to "ROR 41", the latter is closer to the DSi algorithm which used 42.
The secret constant C has not been publicly disclosed.
The secret constant C has not been publicly disclosed.