diff --git a/perun-wui-core/src/main/java/cz/metacentrum/perun/wui/json/managers/UsersManager.java b/perun-wui-core/src/main/java/cz/metacentrum/perun/wui/json/managers/UsersManager.java
index 3f91c4e7..9982caf3 100644
--- a/perun-wui-core/src/main/java/cz/metacentrum/perun/wui/json/managers/UsersManager.java
+++ b/perun-wui-core/src/main/java/cz/metacentrum/perun/wui/json/managers/UsersManager.java
@@ -252,6 +252,19 @@ public static Request validatePreferredEmailChange(int userId, String token, Jso
 
 	}
 
+	/**
+	 * Validate ssh public key, throws exception if validation fails
+	 *
+	 * @param sshKey ssh public key to verify
+	 * @return Request unique request
+	 */
+	public static Request validateSSHKey(String sshKey, JsonEvents events) {
+		JsonClient client = new JsonClient(events);
+		client.put("sshKey", sshKey);
+
+		return client.call(USERS_MANAGER + "validateSSHKey");
+	}
+
 	/**
 	 * Change password in selected namespace
 	 *
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/ListBox.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/ListBox.java
index 81470486..6a92b26c 100644
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/ListBox.java
+++ b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/ListBox.java
@@ -9,6 +9,7 @@
 import com.google.gwt.user.client.ui.Widget;
 import com.google.gwt.user.client.ui.VerticalPanel;
 import cz.metacentrum.perun.wui.json.Events;
+import cz.metacentrum.perun.wui.model.PerunException;
 import cz.metacentrum.perun.wui.registrar.client.resources.PerunRegistrarResources;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.ListBoxValidator;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.SshKeysListBoxValidator;
@@ -19,7 +20,9 @@
 import org.gwtbootstrap3.client.ui.html.Paragraph;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * Represents ListBox form item.
@@ -30,6 +33,7 @@ public class ListBox extends WidgetBox {
 
 	private final ListBoxValidator validator;
 	List<ExtendedTextBox> inputList;
+	Map<ExtendedTextBox, BlurHandler> handlers;
 
 	public ListBox(PerunForm form, ApplicationFormItemData item, String lang) {
 		super(form, item, lang);
@@ -78,6 +82,7 @@ public boolean validateLocal() {
 	@Override
 	protected Widget initWidget() {
 		inputList = new ArrayList<>();
+		handlers = new HashMap<>();
 		return super.initWidget();
 	}
 
@@ -95,13 +100,48 @@ protected void setValidationTriggers() {
 		if (isOnlyPreview()) {
 			return;
 		}
-		for (ExtendedTextBox input : inputList) {
-			input.addBlurHandler(new BlurHandler() {
+		if ("urn:perun:user:attribute-def:def:sshPublicKey".equals(this.getItemData().getFormItem().getPerunDestinationAttribute())) {
+			final Events<Boolean> nothingEvent = new Events<Boolean>() {
 				@Override
-				public void onBlur(BlurEvent event) {
-					validateLocal();
+				public void onFinished(Boolean result) {
+
+				}
+
+				@Override
+				public void onError(PerunException error) {
+
 				}
-			});
+
+				@Override
+				public void onLoadingStart() {
+
+				}
+			};
+
+			for (ExtendedTextBox input : inputList) {
+
+				if (!handlers.containsKey(input)) {
+					BlurHandler handler = new BlurHandler() {
+						@Override
+						public void onBlur(BlurEvent event) {
+							validate(nothingEvent);
+						}
+					};
+					input.addBlurHandler(handler);
+					handlers.put(input, handler);
+				}
+
+			}
+
+		} else {
+			for (ExtendedTextBox input : inputList) {
+				input.addBlurHandler(new BlurHandler() {
+					@Override
+					public void onBlur(BlurEvent event) {
+						validateLocal();
+					}
+				});
+			}
 		}
 	}
 
@@ -154,8 +194,19 @@ protected void generateItemWithRemoveButton(VerticalPanel vp) {
 		PerunButton removeButton = new PerunButton("", new ClickHandler() {
 			public void onClick(ClickEvent event) {
 				inputList.remove(input);
+				handlers.remove(input);
 				vp.remove(hp);
-				validateLocal();
+				validate(new Events<Boolean>() {
+					@Override
+					public void onFinished(Boolean result) {
+					}
+					@Override
+					public void onError(PerunException error) {
+					}
+					@Override
+					public void onLoadingStart() {
+					}
+				});
 			}
 		});
 		setupRemoveButton(removeButton);
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextArea.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextArea.java
index 8e7c7062..72d7589a 100644
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextArea.java
+++ b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextArea.java
@@ -7,7 +7,6 @@
 import cz.metacentrum.perun.wui.model.beans.ApplicationFormItemData;
 import cz.metacentrum.perun.wui.registrar.widgets.PerunForm;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.PerunFormItemValidator;
-import cz.metacentrum.perun.wui.registrar.widgets.items.validators.SshKeysTextAreaValidator;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.TextAreaValidator;
 import cz.metacentrum.perun.wui.widgets.boxes.ExtendedTextArea;
 import org.gwtbootstrap3.client.ui.html.Paragraph;
@@ -27,12 +26,7 @@ public class TextArea extends PerunFormItemEditable {
 	public TextArea(PerunForm form, ApplicationFormItemData item, String lang) {
 		super(form, item, lang);
 
-		if ("urn:perun:user:attribute-def:def:sshPublicKey".equals(item.getFormItem().getPerunDestinationAttribute())) {
-			this.validator = new SshKeysTextAreaValidator();
-		} else {
-			this.validator = new TextAreaValidator();
-		}
-
+		this.validator = new TextAreaValidator();
 	}
 
 	protected Widget initWidget() {
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextField.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextField.java
index 0a244c8c..6cd3a09a 100644
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextField.java
+++ b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/TextField.java
@@ -7,7 +7,6 @@
 import cz.metacentrum.perun.wui.model.beans.ApplicationFormItemData;
 import cz.metacentrum.perun.wui.registrar.widgets.PerunForm;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.PerunFormItemValidator;
-import cz.metacentrum.perun.wui.registrar.widgets.items.validators.SshKeysTextFieldValidator;
 import cz.metacentrum.perun.wui.registrar.widgets.items.validators.TextFieldValidator;
 import cz.metacentrum.perun.wui.widgets.boxes.ExtendedTextBox;
 import org.gwtbootstrap3.client.ui.constants.ColumnSize;
@@ -29,11 +28,7 @@ public class TextField extends PerunFormItemEditable {
 
 	public TextField(PerunForm form, ApplicationFormItemData item, String lang) {
 		super(form, item, lang);
-		if ("urn:perun:user:attribute-def:def:sshPublicKey".equals(item.getFormItem().getPerunDestinationAttribute())) {
-			this.validator = new SshKeysTextFieldValidator();
-		} else {
-			this.validator = new TextFieldValidator();
-		}
+		this.validator = new TextFieldValidator();
 	}
 
 	@Override
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/PerunFormItemValidator.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/PerunFormItemValidator.java
index d408b90a..ea1f492a 100644
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/PerunFormItemValidator.java
+++ b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/PerunFormItemValidator.java
@@ -20,6 +20,7 @@ enum Result {
 		INVALID_FORMAT_EMAIL,
 		LOGIN_NOT_AVAILABLE,
 		CHECKING_LOGIN,
+		CHECKING_SSH,
 		CANT_CHECK_LOGIN,
 		EMPTY_PASSWORD,
 		PASSWORD_TOO_SHORT,
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysListBoxValidator.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysListBoxValidator.java
index d4f4c096..a4f42f1e 100644
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysListBoxValidator.java
+++ b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysListBoxValidator.java
@@ -1,11 +1,19 @@
 package cz.metacentrum.perun.wui.registrar.widgets.items.validators;
 
-import com.google.gwt.regexp.shared.MatchResult;
-import com.google.gwt.regexp.shared.RegExp;
+import com.google.gwt.core.client.JavaScriptObject;
+import cz.metacentrum.perun.wui.json.Events;
+import cz.metacentrum.perun.wui.json.JsonEvents;
+import cz.metacentrum.perun.wui.json.managers.UsersManager;
+import cz.metacentrum.perun.wui.model.PerunException;
 import cz.metacentrum.perun.wui.registrar.widgets.items.ListBox;
 import cz.metacentrum.perun.wui.widgets.boxes.ExtendedTextBox;
 import org.gwtbootstrap3.client.ui.constants.ValidationState;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.stream.Collectors;
+
 /**
  * Validator for ListBox
  *
@@ -13,11 +21,9 @@
  */
 public class SshKeysListBoxValidator extends ListBoxValidator {
 
-	RegExp regExp = RegExp.compile("^(" +
-		"(ssh-(rsa|dss|ed25519)(-cert-v01@openssh.com)?)|" +
-		"(sk-(ssh-ed25519|ecdsa-sha2-nistp256)(-cert-v01)?@openssh.com)|" +
-		"(ecdsa-sha2-nistp(256|384|521)(-cert-v01@openssh.com)?))" +
-		" (([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?)( [^,\n]+)?$");
+	final Map<String, ValidationState> checkVals = new TreeMap<>();
+	final Map<String, Integer> indexMap = new HashMap<>();
+	int validatingCounter = 0;
 
 	@Override
 	public boolean validateLocal(ListBox listBox) {
@@ -26,34 +32,95 @@ public boolean validateLocal(ListBox listBox) {
 			listBox.setRawStatus(getTransl().cantBeEmpty(), ValidationState.ERROR);
 			return false;
 		}
+		// FIXME - but it is probably not necessary as API should check it
+		for (ExtendedTextBox extendedTextBox : listBox.getListValue()) {
+			String sshKey = extendedTextBox.getValue();
+			if (sshKey.contains(",")) {
+				setResult(Result.INVALID_FORMAT);
+				listBox.setStatus(getTransl().sshKeySeparatorNotAllowed(), ValidationState.ERROR);
+				return false;
+			}
+		}
+		listBox.setStatus(ValidationState.SUCCESS);
+		return true;
+	}
+
+	@Override
+	public void validate(ListBox listBox, Events<Boolean> events) {
+
+		if (!validateLocal(listBox)) {
+			events.onFinished(false);
+			return;
+		}
+
+		if (listBox.getValue() == null || listBox.getValue().isEmpty()) {
+			events.onFinished(true);
+			return;
+		}
+
+		checkVals.clear();
+		indexMap.clear();
 
-		if (listBox.getValue() != null && !listBox.getValue().isEmpty()) {
+		int counter = 1;
+		for (ExtendedTextBox extendedTextBox : listBox.getListValue()) {
+			String sshKey = extendedTextBox.getValue();
+			indexMap.put(sshKey, counter);
+			checkVals.put(sshKey, ValidationState.NONE);
+			counter++;
+		}
 
-			String wrongValues = "";
-			int index = 1;
-			for (ExtendedTextBox extendedTextBox : listBox.getListValue()) {
-				String sshKey = extendedTextBox.getValue();
+		for (String sshKey : checkVals.keySet()) {
 
-				if (sshKey.contains(",")) {
+			UsersManager.validateSSHKey(sshKey, new JsonEvents() {
+				@Override
+				public void onFinished(JavaScriptObject result) {
+					validatingCounter--;
+					checkVals.put(sshKey, ValidationState.SUCCESS);
+					if (validatingCounter == 0) {
+						// last check trigger events
+						for (ValidationState state : checkVals.values()) {
+							// at least one key is invalid -> switch to error
+							if (ValidationState.ERROR == state) {
+								setResult(Result.INVALID_FORMAT);
+								listBox.setRawStatus(getTransl().incorrectFormatItemList() + " <b> <br>" + checkVals.entrySet().stream().filter( entry -> (entry.getValue() == ValidationState.ERROR)).map((entry) -> indexMap.get(entry.getKey()) + ". " +
+										(entry.getKey().length() > 25 ? entry.getKey().substring(0,23) + "..." : entry.getKey())).collect(Collectors.joining("<br>")) + "</b>", ValidationState.ERROR);
+								// pass to outer event as fail
+								events.onFinished(false);
+								return;
+							}
+						}
+						// all values were OK -> trigger success
+						listBox.setStatus(ValidationState.SUCCESS);
+						events.onFinished(true);
+					}
+				}
+
+				@Override
+				public void onError(PerunException error) {
+					validatingCounter--;
+					checkVals.put(sshKey, ValidationState.ERROR);
+					// set error immediately
 					setResult(Result.INVALID_FORMAT);
-					listBox.setStatus(getTransl().sshKeySeparatorNotAllowed(), ValidationState.ERROR);
-					return false;
+					listBox.setRawStatus(getTransl().incorrectFormatItemList() + " <b> <br>" + checkVals.entrySet().stream().filter( entry -> (entry.getValue() == ValidationState.ERROR)).map((entry) -> indexMap.get(entry.getKey()) + ". " +
+							(entry.getKey().length() > 25 ? entry.getKey().substring(0,23) + "..." : entry.getKey())).collect(Collectors.joining("<br>")) + "</b>", ValidationState.ERROR);
+					if (validatingCounter == 0) {
+						// if last pass to outer event as fail
+						events.onFinished(false);
+					}
 				}
 
-				MatchResult matcher = regExp.exec(sshKey);
-				if (matcher == null) {
-					wrongValues += "<br>" + index + ". " + (sshKey.length() > 25 ? sshKey.substring(0, 23) + "..." : sshKey);
+				@Override
+				public void onLoadingStart() {
+					if (validatingCounter == 0) {
+						listBox.unsetStatus();
+						events.onLoadingStart();
+						setResult(Result.CHECKING_SSH);
+						listBox.setStatus(ValidationState.WARNING);
+					}
+					validatingCounter++;
 				}
-				index++;
-			}
-			if (!wrongValues.isEmpty()) {
-				setResult(Result.INVALID_FORMAT);
-				listBox.setRawStatus(getTransl().incorrectFormatItemList() + " <b>" + wrongValues + "</b>", ValidationState.ERROR);
-				return false;
-			}
-		}
+			});
 
-		listBox.setStatus(ValidationState.SUCCESS);
-		return true;
+		}
 	}
 }
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextAreaValidator.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextAreaValidator.java
deleted file mode 100644
index 5f16d7b1..00000000
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextAreaValidator.java
+++ /dev/null
@@ -1,99 +0,0 @@
-package cz.metacentrum.perun.wui.registrar.widgets.items.validators;
-
-import com.google.gwt.regexp.shared.MatchResult;
-import com.google.gwt.regexp.shared.RegExp;
-import cz.metacentrum.perun.wui.registrar.widgets.items.TextArea;
-import org.gwtbootstrap3.client.ui.constants.ValidationState;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.stream.Collectors;
-
-/**
- * @author Pavel Zlámal <zlamal@cesnet.cz>
- */
-public class SshKeysTextAreaValidator extends TextAreaValidator {
-
-	RegExp regExp = RegExp.compile("^(" +
-			"(ssh-(rsa|dss|ed25519)(-cert-v01@openssh.com)?)|" +
-			"(sk-(ssh-ed25519|ecdsa-sha2-nistp256)(-cert-v01)?@openssh.com)|" +
-			"(ecdsa-sha2-nistp(256|384|521)(-cert-v01@openssh.com)?))" +
-			" (([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?)( [^,\n]+)?$");
-
-	@Override
-	public boolean validateLocal(TextArea textArea) {
-
-		if (textArea.isRequired() && isNullOrEmpty(textArea.getValue())) {
-			setResult(Result.EMPTY);
-			textArea.setRawStatus(getTransl().cantBeEmpty(), ValidationState.ERROR);
-			return false;
-		}
-
-		if (!textArea.getBox().isValid()) {
-			setResult(Result.INVALID_FORMAT);
-			textArea.setStatus(getErrorMsgOrDefault(textArea), ValidationState.ERROR);
-			return false;
-		}
-
-		if (textArea.getValue() != null && textArea.getValue().length() > textArea.MAX_LENGTH) {
-			setResult(Result.TOO_LONG);
-			textArea.setStatus(getTransl().tooLong(), ValidationState.ERROR);
-			return false;
-		}
-
-		if (textArea.getValue() != null && !textArea.getValue().isEmpty()) {
-
-			String sshKeys = textArea.getValue();
-
-			if (sshKeys.contains("\n")) {
-				setResult(Result.INVALID_FORMAT);
-				textArea.setStatus(getTransl().newlinesNotAllowed(), ValidationState.ERROR);
-				return false;
-			}
-
-			if (sshKeys.contains(",,")) {
-				setResult(Result.INVALID_FORMAT);
-				textArea.setStatus(getTransl().tooMuchCommas(), ValidationState.ERROR);
-				return false;
-			}
-
-			if (sshKeys.contains(", ") || sshKeys.contains(" ,")) {
-				setResult(Result.INVALID_FORMAT);
-				textArea.setStatus(getTransl().sshKeyNoSpaceAroundKeySeparator(), ValidationState.ERROR);
-				return false;
-			}
-
-			// FIXME - this doesn't make sense anymore, as we have multiple different SSH keys prefixes, which needs to be checked.
-			/*
-			if (sshKeys.indexOf("ssh-") != sshKeys.lastIndexOf("ssh-")) {
-				// there are at least two keys
-				if (!sshKeys.contains(",ssh-") && !sshKeys.contains("\nssh-")) {
-					setResult(Result.INVALID_FORMAT);
-					textArea.setStatus(getTransl().sshKeyMissingDelimiter(), ValidationState.ERROR);
-					return false;
-				}
-			}
-			*/
-
-			// normalize value just in case
-			sshKeys = sshKeys.replaceAll("(,)+", ",");
-			List<String> keys = Arrays.stream(sshKeys.split(",")).collect(Collectors.toList());
-
-			for (String key : keys) {
-				MatchResult matcher = regExp.exec(key);
-				if (matcher == null) {
-					int length = Math.min(key.length(), 30);
-					textArea.setRawStatus(getTransl().sshKeyFormat(key.substring(0, length)+((length == 30) ? "..." : "")), ValidationState.ERROR);
-					setResult(Result.INVALID_FORMAT);
-					return false;
-				}
-			}
-
-		}
-
-		textArea.setStatus(ValidationState.SUCCESS);
-		return true;
-
-	}
-
-}
diff --git a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextFieldValidator.java b/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextFieldValidator.java
deleted file mode 100644
index fd42724f..00000000
--- a/perun-wui-registrar/src/main/java/cz/metacentrum/perun/wui/registrar/widgets/items/validators/SshKeysTextFieldValidator.java
+++ /dev/null
@@ -1,93 +0,0 @@
-package cz.metacentrum.perun.wui.registrar.widgets.items.validators;
-
-import com.google.gwt.regexp.shared.MatchResult;
-import com.google.gwt.regexp.shared.RegExp;
-import cz.metacentrum.perun.wui.registrar.widgets.items.TextField;
-import org.gwtbootstrap3.client.ui.constants.ValidationState;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.stream.Collectors;
-
-/**
- * @author Pavel Zlámal <zlamal@cesnet.cz>
- */
-public class SshKeysTextFieldValidator extends TextFieldValidator {
-
-	RegExp regExp = RegExp.compile("^(" +
-			"(ssh-(rsa|dss|ed25519)(-cert-v01@openssh.com)?)|" +
-			"(sk-(ssh-ed25519|ecdsa-sha2-nistp256)(-cert-v01)?@openssh.com)|" +
-			"(ecdsa-sha2-nistp(256|384|521)(-cert-v01@openssh.com)?))" +
-			" (([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?)( [^,\n]+)?$");
-
-	@Override
-	public boolean validateLocal(TextField textField) {
-
-		if (textField.isRequired() && isNullOrEmpty(textField.getValue())) {
-			setResult(Result.EMPTY);
-			textField.setRawStatus(getTransl().cantBeEmpty(), ValidationState.ERROR);
-			return false;
-		}
-
-		if (!textField.getBox().isValid()) {
-			setResult(Result.INVALID_FORMAT);
-			textField.setStatus(getErrorMsgOrDefault(textField), ValidationState.ERROR);
-			return false;
-		}
-
-		if (textField.getValue() != null && textField.getValue().length() > textField.MAX_LENGTH) {
-			setResult(Result.TOO_LONG);
-			textField.setStatus(getTransl().tooLong(), ValidationState.ERROR);
-			return false;
-		}
-
-		if (textField.getValue() != null && !textField.getValue().isEmpty()) {
-
-			String sshKeys = textField.getValue();
-
-			if (sshKeys.contains(",,")) {
-				setResult(Result.INVALID_FORMAT);
-				textField.setStatus(getTransl().tooMuchCommas(), ValidationState.ERROR);
-				return false;
-			}
-
-			if (sshKeys.contains(", ") || sshKeys.contains(" ,")) {
-				setResult(Result.INVALID_FORMAT);
-				textField.setStatus(getTransl().sshKeyNoSpaceAroundKeySeparator(), ValidationState.ERROR);
-				return false;
-			}
-
-			// FIXME - this doesn't make sense anymore, as we have multiple different SSH keys prefixes, which needs to be checked.
-			/*
-			if (sshKeys.indexOf("ssh-") != sshKeys.lastIndexOf("ssh-")) {
-				// there are at least two keys
-				if (!sshKeys.contains(",ssh-")) {
-					setResult(Result.INVALID_FORMAT);
-					textField.setStatus(getTransl().sshKeyMissingCommaDelimiterTextField(), ValidationState.ERROR);
-					return false;
-				}
-			}
-			*/
-
-			// normalize value just in case
-			sshKeys = sshKeys.replaceAll("(,)+", ",");
-			List<String> keys = Arrays.stream(sshKeys.split(",")).collect(Collectors.toList());
-
-			for (String key : keys) {
-				MatchResult matcher = regExp.exec(key);
-				if (matcher == null) {
-					int length = Math.min(key.length(), 30);
-					textField.setRawStatus(getTransl().sshKeyFormat(key.substring(0, length)+((length == 30) ? "..." : "")), ValidationState.ERROR);
-					setResult(Result.INVALID_FORMAT);
-					return false;
-				}
-			}
-
-		}
-
-		textField.setStatus(ValidationState.SUCCESS);
-		return true;
-
-	}
-
-}