diff --git a/Navigation.js b/Navigation.js
index 36feb30e1..fb9c2c24b 100644
--- a/Navigation.js
+++ b/Navigation.js
@@ -34,6 +34,7 @@ import WalletExport from './screen/wallets/export';
 import ExportMultisigCoordinationSetup from './screen/wallets/exportMultisigCoordinationSetup';
 import ViewEditMultisigCosigners from './screen/wallets/viewEditMultisigCosigners';
 import WalletXpub from './screen/wallets/xpub';
+import SignVerify from './screen/wallets/signVerify';
 import BuyBitcoin from './screen/wallets/buyBitcoin';
 import HodlHodl from './screen/wallets/hodlHodl';
 import HodlHodlViewOffer from './screen/wallets/hodlHodlViewOffer';
@@ -385,6 +386,17 @@ const WalletXpubStackRoot = () => {
   );
 };
 
+const SignVerifyStack = createStackNavigator();
+const SignVerifyStackRoot = () => {
+  const theme = useTheme();
+
+  return (
+    <SignVerifyStack.Navigator name="SignVerifyRoot" screenOptions={defaultStackScreenOptions} initialRouteName="SignVerify">
+      <SignVerifyStack.Screen name="SignVerify" component={SignVerify} options={SignVerify.navigationOptions(theme)} />
+    </SignVerifyStack.Navigator>
+  );
+};
+
 const WalletExportStack = createStackNavigator();
 const WalletExportStackRoot = () => {
   const theme = useTheme();
@@ -485,6 +497,7 @@ const Navigation = () => {
       />
       <RootStack.Screen name="ViewEditMultisigCosignersRoot" component={ViewEditMultisigCosignersRoot} options={{ headerShown: false }} />
       <RootStack.Screen name="WalletXpubRoot" component={WalletXpubStackRoot} options={{ headerShown: false }} />
+      <RootStack.Screen name="SignVerifyRoot" component={SignVerifyStackRoot} options={{ headerShown: false }} />
       <RootStack.Screen name="BuyBitcoin" component={BuyBitcoin} options={BuyBitcoin.navigationOptions(theme)} />
       <RootStack.Screen name="Marketplace" component={Marketplace} options={Marketplace.navigationOptions(theme)} />
       <RootStack.Screen name="SelectWallet" component={SelectWallet} options={{ headerLeft: null }} />
diff --git a/class/wallets/lightning-custodian-wallet.js b/class/wallets/lightning-custodian-wallet.js
index 6a7c026fe..1efffad3a 100644
--- a/class/wallets/lightning-custodian-wallet.js
+++ b/class/wallets/lightning-custodian-wallet.js
@@ -605,6 +605,10 @@ export class LightningCustodianWallet extends LegacyWallet {
     return true;
   }
 
+  allowSignVerifyMessage() {
+    return false;
+  }
+
   /**
    * Example return:
    * { destination: '03864ef025fde8fb587d989186ce6a4a186895ee44a926bfc370e2c366597a3f8f',
diff --git a/class/wallets/watch-only-wallet.js b/class/wallets/watch-only-wallet.js
index 9cff25b13..1cff6710f 100644
--- a/class/wallets/watch-only-wallet.js
+++ b/class/wallets/watch-only-wallet.js
@@ -35,6 +35,10 @@ export class WatchOnlyWallet extends LegacyWallet {
     );
   }
 
+  allowSignVerifyMessage() {
+    return false;
+  }
+
   getAddress() {
     if (this.isAddressValid(this.secret)) return this.secret; // handling case when there is an XPUB there
     if (this._hdWalletInstance) throw new Error('Should not be used in watch-only HD wallets');
diff --git a/components/FloatButtons.js b/components/FloatButtons.js
index 08810b1d8..8aaf0d03a 100644
--- a/components/FloatButtons.js
+++ b/components/FloatButtons.js
@@ -9,16 +9,20 @@ const ICON_MARGIN = 7;
 
 const cStyles = StyleSheet.create({
   root: {
-    position: 'absolute',
     alignSelf: 'center',
     height: '6.3%',
     minHeight: 44,
   },
+  rootAbsolute: {
+    position: 'absolute',
+    bottom: 30,
+  },
+  rootInline: {},
   rootPre: {
+    position: 'absolute',
     bottom: -1000,
   },
   rootPost: {
-    bottom: 30,
     borderRadius: BORDER_RADIUS,
     flexDirection: 'row',
     overflow: 'hidden',
@@ -42,7 +46,11 @@ export const FContainer = forwardRef((props, ref) => {
   };
 
   return (
-    <View ref={ref} onLayout={onLayout} style={[cStyles.root, newWidth ? cStyles.rootPost : cStyles.rootPre]}>
+    <View
+      ref={ref}
+      onLayout={onLayout}
+      style={[cStyles.root, props.inline ? cStyles.rootInline : cStyles.rootAbsolute, newWidth ? cStyles.rootPost : cStyles.rootPre]}
+    >
       {newWidth
         ? React.Children.toArray(props.children)
             .filter(Boolean)
@@ -61,6 +69,7 @@ export const FContainer = forwardRef((props, ref) => {
 
 FContainer.propTypes = {
   children: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.element), PropTypes.element]),
+  inline: PropTypes.bool,
 };
 
 const buttonFontSize =
@@ -95,6 +104,9 @@ export const FButton = ({ text, icon, width, first, last, ...props }) => {
     text: {
       color: colors.buttonAlternativeTextColor,
     },
+    textDisabled: {
+      color: colors.formBorder,
+    },
   });
   const style = {};
 
@@ -109,7 +121,7 @@ export const FButton = ({ text, icon, width, first, last, ...props }) => {
   return (
     <TouchableOpacity style={[bStyles.root, bStylesHook.root, style]} {...props}>
       <View style={bStyles.icon}>{icon}</View>
-      <Text numberOfLines={1} style={[bStyles.text, bStylesHook.text]}>
+      <Text numberOfLines={1} style={[bStyles.text, props.disabled ? bStylesHook.textDisabled : bStylesHook.text]}>
         {text}
       </Text>
     </TouchableOpacity>
@@ -122,4 +134,5 @@ FButton.propTypes = {
   width: PropTypes.number,
   first: PropTypes.bool,
   last: PropTypes.bool,
+  disabled: PropTypes.bool,
 };
diff --git a/loc/en.json b/loc/en.json
index d1ced1732..525d77f1d 100644
--- a/loc/en.json
+++ b/loc/en.json
@@ -14,6 +14,7 @@
     "no": "No",
     "save": "Save",
     "seed": "Seed",
+    "success": "Success",
     "wallet_key": "Wallet key",
     "invalid_animated_qr_code_fragment" : "Invalid animated QRCode fragment. Please try again.",
     "file_saved": "File ({filePath}) has been saved in your Downloads folder.",
@@ -561,5 +562,16 @@
     "MAX": "Max",
     "sat_byte": "sat/byte",
     "sats": "sats"
+  },
+  "addresses": {
+    "sign_title": "Sign/Verify message",
+    "sign_help": "Here you can create or verify a cryptographic signature based on a Bitcoin address",
+    "sign_sign": "Sign",
+    "sign_verify": "Verify",
+    "sign_signature_correct": "Verification Succeeded!",
+    "sign_signature_incorrect": "Verification Failed!",
+    "sign_placeholder_address": "Address",
+    "sign_placeholder_message": "Message",
+    "sign_placeholder_signature": "Signature"
   }
 }
diff --git a/screen/wallets/details.js b/screen/wallets/details.js
index 6b8373ba6..a9d06914e 100644
--- a/screen/wallets/details.js
+++ b/screen/wallets/details.js
@@ -231,6 +231,14 @@ const WalletDetails = () => {
         secret: wallet.getSecret(),
       },
     });
+  const navigateToSignVerify = () =>
+    navigate('SignVerifyRoot', {
+      screen: 'SignVerify',
+      params: {
+        walletID: wallet.getID(),
+        address: wallet.getAllExternalAddresses()[0], // works for both single address and HD wallets
+      },
+    });
 
   const renderMarketplaceButton = () => {
     return Platform.select({
@@ -552,6 +560,12 @@ const WalletDetails = () => {
                 <BlueSpacing20 />
                 <SecondButton onPress={navigateToIsItMyAddress} testID="IsItMyAddress" title={loc.is_it_my_address.title} />
               </>
+              {wallet.allowSignVerifyMessage() && (
+                <>
+                  <BlueSpacing20 />
+                  <SecondButton onPress={navigateToSignVerify} testID="SignVerify" title={loc.addresses.sign_title} />
+                </>
+              )}
               <BlueSpacing20 />
               <BlueSpacing20 />
               <TouchableOpacity onPress={handleDeleteButtonTapped} testID="DeleteButton">
diff --git a/screen/wallets/signVerify.js b/screen/wallets/signVerify.js
new file mode 100644
index 000000000..e86b8f885
--- /dev/null
+++ b/screen/wallets/signVerify.js
@@ -0,0 +1,232 @@
+import React, { useEffect, useState, useContext } from 'react';
+import {
+  ActivityIndicator,
+  Alert,
+  Keyboard,
+  KeyboardAvoidingView,
+  Platform,
+  StyleSheet,
+  TextInput,
+  TouchableWithoutFeedback,
+  View,
+} from 'react-native';
+import { useRoute, useTheme } from '@react-navigation/native';
+import ReactNativeHapticFeedback from 'react-native-haptic-feedback';
+
+import { BlueDoneAndDismissKeyboardInputAccessory, BlueFormLabel, BlueSpacing10, BlueSpacing20, SafeBlueArea } from '../../BlueComponents';
+import navigationStyle from '../../components/navigationStyle';
+import { FContainer, FButton } from '../../components/FloatButtons';
+import { BlueStorageContext } from '../../blue_modules/storage-context';
+import loc from '../../loc';
+
+const SignVerify = () => {
+  const { colors } = useTheme();
+  const { wallets, sleep } = useContext(BlueStorageContext);
+  const { params } = useRoute();
+  const [isKeyboardVisible, setIsKeyboardVisible] = useState(false);
+  const [address, setAddress] = useState(params.address);
+  const [message, setMessage] = useState('');
+  const [signature, setSignature] = useState('');
+  const [loading, setLoading] = useState(false);
+  const [messageHasFocus, setMessageHasFocus] = useState(false);
+
+  const wallet = wallets.find(w => w.getID() === params.walletID);
+  const isToolbarVisibleForAndroid = Platform.OS === 'android' && messageHasFocus && isKeyboardVisible;
+
+  useEffect(() => {
+    Keyboard.addListener(Platform.OS === 'ios' ? 'keyboardWillShow' : 'keyboardDidShow', () => setIsKeyboardVisible(true));
+    Keyboard.addListener(Platform.OS === 'ios' ? 'keyboardWillHide' : 'keyboardDidHide', () => setIsKeyboardVisible(false));
+    return () => {
+      Keyboard.removeListener(Platform.OS === 'ios' ? 'keyboardWillHide' : 'keyboardDidHide');
+      Keyboard.removeListener(Platform.OS === 'ios' ? 'keyboardWillShow' : 'keyboardDidShow');
+    };
+  }, []);
+
+  const stylesHooks = StyleSheet.create({
+    root: {
+      backgroundColor: colors.elevated,
+    },
+    text: {
+      borderColor: colors.formBorder,
+      borderBottomColor: colors.formBorder,
+      backgroundColor: colors.inputBackgroundColor,
+      color: colors.foregroundColor,
+    },
+  });
+
+  const handleSign = async () => {
+    setLoading(true);
+    await sleep(10); // wait for loading indicator to appear
+    try {
+      const newSignature = wallet.signMessage(message, address);
+      setSignature(newSignature);
+    } catch (e) {
+      ReactNativeHapticFeedback.trigger('notificationError', { ignoreAndroidSystemSettings: false });
+      Alert.alert(loc.errors.error, e.message);
+    }
+    setLoading(false);
+  };
+
+  const handleVerify = async () => {
+    setLoading(true);
+    await sleep(10); // wait for loading indicator to appear
+    try {
+      const res = wallet.verifyMessage(message, address, signature);
+      Alert.alert(
+        res ? loc._.success : loc.errors.error,
+        res ? loc.addresses.sign_signature_correct : loc.addresses.sign_signature_incorrect,
+      );
+      if (res) {
+        ReactNativeHapticFeedback.trigger('notificationSuccess', { ignoreAndroidSystemSettings: false });
+      }
+    } catch (e) {
+      ReactNativeHapticFeedback.trigger('notificationError', { ignoreAndroidSystemSettings: false });
+      Alert.alert(loc.errors.error, e.message);
+    }
+    setLoading(false);
+  };
+
+  if (loading)
+    return (
+      <View style={[styles.loading]}>
+        <ActivityIndicator />
+      </View>
+    );
+
+  return (
+    <SafeBlueArea>
+      <TouchableWithoutFeedback onPress={Keyboard.dismiss} accessible={false}>
+        <KeyboardAvoidingView style={[styles.root, stylesHooks.root]}>
+          {!isKeyboardVisible && (
+            <>
+              <BlueSpacing20 />
+              <BlueFormLabel>{loc.addresses.sign_help}</BlueFormLabel>
+              <BlueSpacing20 />
+            </>
+          )}
+
+          <TextInput
+            multiline
+            textAlignVertical="top"
+            blurOnSubmit
+            placeholder={loc.addresses.sign_placeholder_address}
+            placeholderTextColor="#81868e"
+            value={address}
+            onChangeText={t => setAddress(t.replace('\n', ''))}
+            testID="Signature"
+            style={[styles.text, stylesHooks.text]}
+            autoCorrect={false}
+            autoCapitalize="none"
+            spellCheck={false}
+            editable={!loading}
+          />
+          <BlueSpacing10 />
+
+          <TextInput
+            multiline
+            textAlignVertical="top"
+            blurOnSubmit
+            placeholder={loc.addresses.sign_placeholder_signature}
+            placeholderTextColor="#81868e"
+            value={signature}
+            onChangeText={t => setSignature(t.replace('\n', ''))}
+            testID="Signature"
+            style={[styles.text, stylesHooks.text]}
+            autoCorrect={false}
+            autoCapitalize="none"
+            spellCheck={false}
+            editable={!loading}
+          />
+          <BlueSpacing10 />
+
+          <TextInput
+            multiline
+            placeholder={loc.addresses.sign_placeholder_message}
+            placeholderTextColor="#81868e"
+            value={message}
+            onChangeText={setMessage}
+            testID="Message"
+            inputAccessoryViewID={BlueDoneAndDismissKeyboardInputAccessory.InputAccessoryViewID}
+            style={[styles.flex, styles.text, styles.textMessage, stylesHooks.text]}
+            autoCorrect={false}
+            autoCapitalize="none"
+            spellCheck={false}
+            editable={!loading}
+            onFocus={() => setMessageHasFocus(true)}
+            onBlur={() => setMessageHasFocus(false)}
+          />
+          <BlueSpacing10 />
+
+          {!isKeyboardVisible && (
+            <>
+              <FContainer inline>
+                <FButton onPress={handleSign} text={loc.addresses.sign_sign} disabled={loading} />
+                <FButton onPress={handleVerify} text={loc.addresses.sign_verify} disabled={loading} />
+              </FContainer>
+              <BlueSpacing10 />
+            </>
+          )}
+
+          {Platform.select({
+            ios: (
+              <BlueDoneAndDismissKeyboardInputAccessory
+                onClearTapped={() => setMessage('')}
+                onPasteTapped={text => {
+                  setMessage(text);
+                  Keyboard.dismiss();
+                }}
+              />
+            ),
+            android: isToolbarVisibleForAndroid && (
+              <BlueDoneAndDismissKeyboardInputAccessory
+                onClearTapped={() => {
+                  setMessage('');
+                  Keyboard.dismiss();
+                }}
+                onPasteTapped={text => {
+                  setMessage(text);
+                  Keyboard.dismiss();
+                }}
+              />
+            ),
+          })}
+        </KeyboardAvoidingView>
+      </TouchableWithoutFeedback>
+    </SafeBlueArea>
+  );
+};
+
+SignVerify.navigationOptions = navigationStyle({}, opts => ({ ...opts, title: loc.addresses.sign_title }));
+
+export default SignVerify;
+
+const styles = StyleSheet.create({
+  root: {
+    flex: 1,
+  },
+  text: {
+    paddingHorizontal: 8,
+    paddingVertical: 8,
+    marginTop: 5,
+    marginHorizontal: 20,
+    borderWidth: 1,
+    borderBottomWidth: 0.5,
+    borderRadius: 4,
+    textAlignVertical: 'top',
+  },
+  textMessage: {
+    minHeight: 50,
+  },
+  flex: {
+    flex: 1,
+  },
+  loading: {
+    position: 'absolute',
+    top: 0,
+    left: 0,
+    right: 0,
+    bottom: 0,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+});