tiny.simd.aesKeyGenAssist

1pub fn aesKeyGenAssist(comptime D: type, comptime rcon: u8, value: D.Vector) D.Vector {2    validateAes(D);3    const input: [D.lane_count]u8 = value;4    var result: [D.lane_count]u8 = undefined;5    const indices = [16]usize{ 4, 5, 6, 7, 5, 6, 7, 4, 12, 13, 14, 15, 13, 14, 15, 12 };6    inline for (0..D.lane_count / 16) |block| {7        inline for (0..16) |index| {8            const source = block * 16 + indices[index];9            const constant: u8 = if (index == 4 or index == 12) rcon else 0;10            result[block * 16 + index] = sbox(input[source]) ^ constant;11        }12    }13    return result;14}

1pub const aesKeyGenAssist = crypto.aesKeyGenAssist;