[en] At vigil energies and/or large 1/x, the S-matrix of diffractive scattering is diagonalized in the dipole-cross representation. The emergence of this new symmetry leads to the intuitively appealing description of the diffraction in terms of the light cone wave functions of the multi parton Fock states of the photon 11-31, and in [3] we gave the regular procedure of constructing these multi parton wave functions. Notably, it leaks to a drastic simplifications in incorporation of gauge invariance constraints when the infrared behaviour of QCD is modified to account for the finite correlation radius for the perturbative gluons. Furthermore, the dipole cross section satisfies the modified BFKL equation the solutions of which allow to determine the pomeron cross section in the whole range of dipole sizes and to find the impact of the gluon correlation radius on the intercept of the BFKL pomeron