Cylinder lock with side bar and side pins, key and lock assembly

A cylinder lock comprising a cylinder housing, a cylinder core having a key channel arranged in the cylinder housing, said key channel arranged to receive a key with a meandering code groove, at least one side bar arranged between the cylinder housing and the cylinder core and a plurality of side pins positioned on at least one side of the key channel, the side pins being arranged to be lifted by the meandering groove of the key upon insertion of the key in the key channel, each of the side pins comprising a shaft and a body that in cooperation with the at least one side bar allow or prevent relative rotation of the cylinder housing and the cylinder core depending on whether the plurality of side pins being lifted to a correct code level, wherein each side pin comprises a foot, which is connected to the body by the shaft, said foot arranged to be lifted by the meandering code groove in the key upon insertion of the key in the key channel, the foot of at least one of the side pins being tapered, wherein each tapered foot comprises a cylindrical portion having a diameter essentially equal to an outer diameter of the body and greater than a diameter of the shaft and a conical portion, said conical portion being formed as a rectilinearly truncated cone converging in a direction away from the body of the side pins.