diff --git a/app/controllers/france_connect/particulier_controller.rb b/app/controllers/france_connect/particulier_controller.rb
index 52f8672df..e1c55625a 100644
--- a/app/controllers/france_connect/particulier_controller.rb
+++ b/app/controllers/france_connect/particulier_controller.rb
@@ -12,51 +12,20 @@ class FranceConnect::ParticulierController < ApplicationController
       .find_by(france_connect_particulier_id: fetched_fci[:france_connect_particulier_id]) ||
         fetched_fci.tap { |object| object.save }
 
-    salt = FranceConnectSaltService.new(fci).salt
-
     if fci.user.nil?
-      redirect_to france_connect_particulier_new_path(fci_id: fci.id, salt: salt)
-    else
-      connect_france_connect_particulier(fci.user)
+      user = User.find_or_create_by(email: fci.email_france_connect) do |new_user|
+        new_user.password = Devise.friendly_token[0, 20]
+      end
+
+      fci.update_attribute('user_id', user.id)
     end
+
+    connect_france_connect_particulier(fci.user)
   rescue Rack::OAuth2::Client::Error => e
     Rails.logger.error e.message
     redirect_france_connect_error_connection
   end
 
-  def new
-    return redirect_france_connect_error_connection if !valid_salt_and_fci_id_params?
-
-    france_connect_information = FranceConnectInformation.find(params[:fci_id])
-    @user = User.new(france_connect_information: france_connect_information).decorate
-  rescue ActiveRecord::RecordNotFound
-    redirect_france_connect_error_connection
-  end
-
-  def check_email
-    return redirect_france_connect_error_connection if !valid_salt_and_fci_id_params?
-
-    user = User.find_by_email(params[:user][:email_france_connect])
-
-    return create if user.nil?
-
-    if params[:user][:password].present?
-
-      if user.valid_password?(params[:user][:password])
-        user.france_connect_information = FranceConnectInformation.find(params[:fci_id])
-
-        return connect_france_connect_particulier user
-      else
-        flash.now.alert = 'Mot de passe invalide'
-      end
-    end
-
-    france_connect_information = FranceConnectInformation.find(params[:fci_id])
-    france_connect_information.update_attribute(:email_france_connect, params[:user][:email_france_connect])
-
-    @user = User.new(france_connect_information: france_connect_information).decorate
-  end
-
   private
 
   def redirect_to_login_if_fc_aborted
@@ -65,22 +34,6 @@ class FranceConnect::ParticulierController < ApplicationController
     end
   end
 
-  def create
-    user = User.new email: params[:user][:email_france_connect]
-    user.password = Devise.friendly_token[0, 20]
-
-    if !user.valid?
-      flash.alert = 'Email non valide'
-
-      return redirect_to france_connect_particulier_new_path fci_id: params[:fci_id], salt: params[:salt], user: {email_france_connect: params[:user]['email_france_connect']}
-    end
-
-    user.save
-    FranceConnectInformation.find(params[:fci_id]).update_attribute(:user, user)
-
-    connect_france_connect_particulier user
-  end
-
   def connect_france_connect_particulier user
     sign_out :user if user_signed_in?
     sign_out :gestionnaire if gestionnaire_signed_in?
@@ -98,9 +51,4 @@ class FranceConnect::ParticulierController < ApplicationController
     flash.alert = t('errors.messages.france_connect.connexion')
     redirect_to(new_user_session_path)
   end
-
-  def valid_salt_and_fci_id_params?
-    france_connect_information = FranceConnectInformation.find(params[:fci_id])
-    FranceConnectSaltService.new(france_connect_information).valid? params[:salt]
-  end
 end
diff --git a/app/services/france_connect_salt_service.rb b/app/services/france_connect_salt_service.rb
deleted file mode 100644
index 97d5d83d0..000000000
--- a/app/services/france_connect_salt_service.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class FranceConnectSaltService
-  attr_reader :model
-
-  def initialize france_connect_information
-    raise 'Not a FranceConnectInformation class' if france_connect_information.class != FranceConnectInformation
-    @model = france_connect_information
-  end
-
-  def valid? test_salt
-    salt == test_salt
-  end
-
-  def salt
-    Digest::MD5.hexdigest(model.france_connect_particulier_id + model.given_name + model.family_name + FRANCE_CONNECT[:particulier][:secret] + DateTime.now.to_date.to_s)
-  end
-end
diff --git a/app/views/france_connect/particulier/check_email.html.haml b/app/views/france_connect/particulier/check_email.html.haml
deleted file mode 100644
index 9922adda2..000000000
--- a/app/views/france_connect/particulier/check_email.html.haml
+++ /dev/null
@@ -1,23 +0,0 @@
-%h2.text-info
-  = image_tag('logo_FC_02_small.png', style: 'height: 55px;')
-  &nbsp;France Connect - Particulier
-
-%h3 Nouvelle connexion
-%h4.text-warning{ style: 'margin-left: 20px;' } Email déjà utilisé
-
-%br
-%p
-  %h4.center Nous avons trouvé un compte qui utilise déjà cette adresse email.
-  %p.center
-    Afin d'associer ce compte à votre identifiant France Connect, merci de saisir votre mot de passe TPS.
-  %br
-.center
-  #france-connect-particulier-email
-    = form_for @user, url: { controller: 'france_connect/particulier', action: :check_email }, method: :post do |f|
-      .form-group.form-group-lg
-        = f.text_field :email_france_connect, class: "form-control", readonly: 'readonly'
-        %br
-        = f.password_field :password, class: "form-control", placeholder: "Entrez votre mot de passe"
-        = hidden_field_tag :fci_id, params[:fci_id]
-        = hidden_field_tag :salt, params[:salt]
-        = f.submit 'Terminer', class: %w(btn btn-lg btn-success), style: 'margin-top: 20px;', id: 'valid_new_fcp'
diff --git a/app/views/france_connect/particulier/new.html.haml b/app/views/france_connect/particulier/new.html.haml
deleted file mode 100644
index ddb7a5b0b..000000000
--- a/app/views/france_connect/particulier/new.html.haml
+++ /dev/null
@@ -1,32 +0,0 @@
-%h2.text-info
-  = image_tag('logo_FC_02_small.png', style: 'height: 55px;')
-  &nbsp;France Connect - Particulier
-
-%h3 Nouvelle connexion
-
-%br
-%p
-  Nous vous avons identifié comme étant
-
-%h4.text-info.center
-  %strong
-    = @user.gender_fr
-    = @user.given_name
-    = @user.family_name
-  né le
-  %strong
-    = @user.birthdate_fr
-
-%br
-%h4
-  Afin de finaliser votre première connexion à TPS, merci de saisir un email valide :
-%br
-
-.center
-  #france-connect-particulier-email
-    = form_for @user, url: { controller: 'france_connect/particulier', action: :check_email }, method: :post do |f|
-      .form-group.form-group-lg
-        = f.text_field :email_france_connect, class: "form-control", placeholder: "Entrez votre email"
-        = hidden_field_tag :fci_id, params[:fci_id]
-        = hidden_field_tag :salt, params[:salt]
-        = f.submit 'Terminer', class: %w(btn btn-lg btn-success), style: 'margin-top: 20px;', id: 'valid_new_fcp'
diff --git a/config/routes.rb b/config/routes.rb
index 86f4a8b53..d1a63f0b9 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -65,9 +65,6 @@ Rails.application.routes.draw do
   namespace :france_connect do
     get 'particulier' => 'particulier#login'
     get 'particulier/callback' => 'particulier#callback'
-
-    get 'particulier/new' => 'particulier#new'
-    post 'particulier/check_email' => 'particulier#check_email'
   end
 
   namespace :users do
diff --git a/spec/controllers/france_connect/particulier_controller_spec.rb b/spec/controllers/france_connect/particulier_controller_spec.rb
index 7269aa52e..926348bba 100644
--- a/spec/controllers/france_connect/particulier_controller_spec.rb
+++ b/spec/controllers/france_connect/particulier_controller_spec.rb
@@ -9,7 +9,6 @@ describe FranceConnect::ParticulierController, type: :controller do
   let(:birthplace) { '1234' }
   let(:france_connect_particulier_id) { 'blabla' }
   let(:email) { 'test@test.com' }
-  let(:password) { '' }
 
   let(:user_info) { { france_connect_particulier_id: france_connect_particulier_id, given_name: given_name, family_name: family_name, birthdate: birthdate, birthplace: birthplace, gender: gender, email_france_connect: email } }
 
@@ -70,21 +69,16 @@ describe FranceConnect::ParticulierController, type: :controller do
           end
 
           context 'when france_connect_particulier_id does not have an associate user' do
-            let(:salt) { FranceConnectSaltService.new(france_connect_information).salt }
-
             before do
               get :callback, params: {code: code}
             end
 
-            it 'redirects to check email FC page' do
-              expect(response).to redirect_to(france_connect_particulier_new_path(fci_id: france_connect_information.id, salt: salt))
-            end
+            it {expect(response).to redirect_to(root_path)}
           end
         end
 
         context 'when france_connect_particulier_id does not exist in database' do
           let(:last_france_connect_information) { FranceConnectInformation.last }
-          let(:salt) { FranceConnectSaltService.new(last_france_connect_information).salt }
           subject { get :callback, params: {code: code} }
 
           it { expect { subject }.to change { FranceConnectInformation.count }.by(1) }
@@ -105,9 +99,7 @@ describe FranceConnect::ParticulierController, type: :controller do
             it { expect(subject.france_connect_particulier_id).to eq france_connect_particulier_id }
           end
 
-          it 'redirects to check email FC page' do
-            expect(subject).to redirect_to(france_connect_particulier_new_path(fci_id: last_france_connect_information.id, salt: salt))
-          end
+          it { expect(subject).to redirect_to(root_path) }
         end
       end
 
@@ -127,77 +119,4 @@ describe FranceConnect::ParticulierController, type: :controller do
       end
     end
   end
-
-  describe 'POST #check_email' do
-    let(:email) { 'plop@gmail.com' }
-
-    let!(:france_connect_information) { create(:france_connect_information) }
-    let(:france_connect_information_id) { france_connect_information.id }
-    let(:salt) { FranceConnectSaltService.new(france_connect_information).salt }
-
-    subject { post :check_email, params: {fci_id: france_connect_information_id, salt: salt, user: {email_france_connect: email}} }
-
-    context 'when salt and fci_id does not matches' do
-      let(:france_connect_information_fake) { create(:france_connect_information, france_connect_particulier_id: 'iugfjh') }
-      let(:france_connect_information_id) { france_connect_information_fake.id }
-
-      it { is_expected.to redirect_to new_user_session_path }
-    end
-
-    context 'when salt and fci_id matches' do
-      context 'when email is not used' do
-        context 'when email is valid' do
-          it { expect { subject }.to change { User.count }.by(1) }
-
-          describe 'New user attributs' do
-            before do
-              subject
-            end
-
-            let(:user) { User.last }
-
-            it { expect(user.email).to eq email }
-            it { expect(user.france_connect_information).to eq france_connect_information }
-          end
-        end
-
-        context 'when email is not valid' do
-          let(:email) { 'kdjizjflk' }
-
-          it { expect { subject }.not_to change { User.count } }
-          it { is_expected.to redirect_to(france_connect_particulier_new_path fci_id: france_connect_information.id, salt: salt, user: {email_france_connect: email}) }
-        end
-      end
-
-      context 'when email is used' do
-        let!(:user) { create(:user, email: france_connect_information.email_france_connect) }
-        let(:email) { france_connect_information.email_france_connect }
-        let(:password) { user.password }
-
-        before do
-          subject
-        end
-
-        subject { post :check_email, params: {fci_id: france_connect_information_id, salt: salt, user: {email_france_connect: email, password: password}} }
-
-        context 'when email and password couple is valid' do
-          it { expect { subject }.not_to change { User.count } }
-
-          describe 'Update user attributs' do
-            before do
-              subject
-            end
-
-            it { expect(user.france_connect_information).to eq france_connect_information }
-          end
-        end
-
-        context 'when email and password couple is not valid' do
-          let(:password) { 'fake' }
-
-          it { expect(flash.alert).to eq 'Mot de passe invalide' }
-        end
-      end
-    end
-  end
 end
diff --git a/spec/features/france_connect/france_connect_particulier_spec.rb b/spec/features/france_connect/france_connect_particulier_spec.rb
index 41b57d27f..dd221153e 100644
--- a/spec/features/france_connect/france_connect_particulier_spec.rb
+++ b/spec/features/france_connect/france_connect_particulier_spec.rb
@@ -55,19 +55,9 @@ feature 'France Connect Particulier  Connexion' do
           before do
             page.find('.login-with-fc').click
           end
-          scenario 'he is redirected to france connect particulier page' do
-            expect(page).to have_content('Nouvelle connexion')
-          end
 
-          context 'when he fill an email and valid' do
-            before do
-              page.find_by_id('user_email_france_connect').set email
-              page.find_by_id('valid_new_fcp').click
-            end
-
-            scenario 'he is redirected to user dossiers page' do
-              expect(page).to have_content('Dossiers')
-            end
+          scenario 'he is redirected to user dossiers page' do
+            expect(page).to have_content('Dossiers')
           end
         end
 
diff --git a/spec/services/france_connect_salt_service_spec.rb b/spec/services/france_connect_salt_service_spec.rb
deleted file mode 100644
index ff77a1ef7..000000000
--- a/spec/services/france_connect_salt_service_spec.rb
+++ /dev/null
@@ -1,41 +0,0 @@
-require 'spec_helper'
-
-describe FranceConnectSaltService do
-  describe '.initialize' do
-    context 'when args is not a FranceConnectInformation class' do
-      let(:args) { create(:dossier) }
-
-      subject { described_class.new args }
-
-      it { expect { subject }.to raise_error 'Not a FranceConnectInformation class' }
-    end
-  end
-
-  describe '.valid?' do
-    let(:france_connect_information) { create(:france_connect_information) }
-    let(:salt_service) { FranceConnectSaltService.new(france_connect_information) }
-    let(:salt) { salt_service.salt }
-
-    context 'when france_connect_information_id is correct' do
-      let(:france_connect_information_id) { france_connect_information.id }
-      let(:france_connect_information_get_with_id) { FranceConnectInformation.find(france_connect_information_id) }
-      let(:salt_service_compare) { FranceConnectSaltService.new france_connect_information_get_with_id }
-
-      subject { salt_service_compare.valid? salt }
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when france_connect_information_id is not correct' do
-      let(:france_connect_information_fake) { create(:france_connect_information, france_connect_particulier_id: '87515272') }
-
-      let(:france_connect_information_id) { france_connect_information_fake.id }
-      let(:france_connect_information_get_with_id) { FranceConnectInformation.find(france_connect_information_id) }
-      let(:salt_service_compare) { FranceConnectSaltService.new france_connect_information_get_with_id }
-
-      subject { salt_service_compare.valid? salt }
-
-      it { is_expected.to be_falsey }
-    end
-  end
-end