diff --git a/lib/func_base.cpp b/lib/func_base.cpp
index ae96cfa3..c72b4ec4 100644
--- a/lib/func_base.cpp
+++ b/lib/func_base.cpp
@@ -291,3 +291,12 @@ QString appendXcaComment(QString current, QString msg)
 		current += "\n";
 	return current + QString("(%1)\n").arg(msg);
 }
+
+QString toHexBlock(const QByteArray &ba)
+{
+	QByteArray hex;
+	for(int i = 0; i < ba.size(); i += 16)
+		hex += ba.mid(i, 16).toHex(':') + '\n';
+	hex.chop(1);
+	return QString::fromLatin1(hex);
+}
diff --git a/lib/func_base.h b/lib/func_base.h
index da92623f..7de9a388 100644
--- a/lib/func_base.h
+++ b/lib/func_base.h
@@ -60,6 +60,7 @@ void *d2i_bytearray(void *(*d2i)(void*, unsigned char**, long),
 QString appendXcaComment(QString current, QString msg);
 
 QString get_ossl_verify_error(int err);
+QString toHexBlock(const QByteArray &ba);
 
 /* from version.cpp */
 const char *version_str(bool html);
diff --git a/lib/pki_key.cpp b/lib/pki_key.cpp
index 60c66a6b..e20868fd 100644
--- a/lib/pki_key.cpp
+++ b/lib/pki_key.cpp
@@ -362,19 +362,10 @@ void pki_key::writePublic(XFile &file, bool pem) const
 	file.write(b);
 }
 
-QString pki_key::BN2QString(const BIGNUM *bn) const
-{
-	QByteArray hex, ba = BioByteArray(bn);
-	for(int i = 0; i<ba.size(); i += 16)
-		hex += ba.mid(i, 16).toHex(':') + '\n';
-	hex.chop(1);
-	return QString::fromLatin1(hex);
-}
-
 QString pki_key::BignumParamQString(const char *param_name) const
 {
 	BIGNUM *bn = BignumParam(param_name);
-	QString ret = BN2QString(bn);
+	QString ret = toHexBlock(BioByteArray(bn));
 	if(bn)
 		BN_free(bn);
 	return ret;
diff --git a/lib/pki_key.h b/lib/pki_key.h
index c93d711b..38778871 100644
--- a/lib/pki_key.h
+++ b/lib/pki_key.h
@@ -180,7 +180,6 @@ class pki_key: public pki_base
 		int key_size;
 		bool isPub;
 		EVP_PKEY *key;
-		QString BN2QString(const BIGNUM *bn) const;
 		QByteArray SSH2publicQByteArray(bool raw=false) const;
 		QByteArray X509_PUBKEY_public_key() const;
 		QByteArray PEM_comment() const;
diff --git a/widgets/KeyDetail.cpp b/widgets/KeyDetail.cpp
index e21e9f11..649bde2a 100644
--- a/widgets/KeyDetail.cpp
+++ b/widgets/KeyDetail.cpp
@@ -128,7 +128,7 @@ void KeyDetail::setKey(pki_key *key, bool import)
 				MainWindow::getResolver(),
 				SLOT(searchOid(QString)));
 			keyPubEx->setToolTip(CurveComment(nid));
-			keyModulus->setText(key->BignumParamQString(OSSL_PKEY_PARAM_PUB_KEY));
+			keyModulus->setText(toHexBlock(key->QByteArrayParam(OSSL_PKEY_PARAM_PUB_KEY)));
 			break;
 #ifdef EVP_PKEY_ED25519
 		case EVP_PKEY_ED25519:
@@ -136,7 +136,7 @@ void KeyDetail::setKey(pki_key *key, bool import)
 			tlPrivEx->setText(tr("Private key"));
 			tlPubEx->setText(tr("Curve name"));
 			keyPubEx->setText("ed25519");
-			keyModulus->setText(key->ed25519PubKey().toHex());
+			keyModulus->setText(toHexBlock(key->ed25519PubKey()));
 			break;
 #endif
 #endif