diff --git a/lib/keymanagers/Keys.js b/lib/keymanagers/Keys.js
index fc110c7..1762642 100644
--- a/lib/keymanagers/Keys.js
+++ b/lib/keymanagers/Keys.js
@@ -1,8 +1,14 @@
 'use strict';
 
-const Key = require('./keyRSA');
+// const Key = require('./keyRSA');
+const Key = require('./Key');
 
-const keyOrNull = key => (key ? Key(key) : null);
+const keyOrNull = (key) => {
+	if (key instanceof Key)
+		return key;
+
+	return key ? new Key({ pem: key }) : null;
+};
 
 module.exports = class Keys {
 	constructor({
@@ -25,15 +31,15 @@ module.exports = class Keys {
 		const keys = {};
 
 		Object.keys({ A006: '', X002: '', E002: '' }).forEach((key) => {
-			keys[key] = Key().generate();
+			keys[key] = Key.generate(); // Key().generate();
 		});
 
 		return new Keys(keys);
 	}
 
 	setBankKeys(bankKeys) {
-		this.keys.bankX002 = Key().importKey(bankKeys.bankX002);
-		this.keys.bankE002 = Key().importKey(bankKeys.bankE002);
+		this.keys.bankX002 = new Key(bankKeys.bankX002); // Key().importKey(bankKeys.bankX002);
+		this.keys.bankE002 = new Key(bankKeys.bankE002); // Key().importKey(bankKeys.bankE002);
 	}
 
 	a() {
diff --git a/lib/keymanagers/_Keys.js b/lib/keymanagers/_Keys.js
new file mode 100644
index 0000000..94fb1ce
--- /dev/null
+++ b/lib/keymanagers/_Keys.js
@@ -0,0 +1,59 @@
+'use strict';
+
+const Key = require('./keyRSA');
+
+const keyOrNull = key => (key ? Key(key) : null);
+
+module.exports = class Keys {
+	constructor({
+		A006,
+		E002,
+		X002,
+		bankX002,
+		bankE002,
+	}) {
+		this.keys = {
+			A006: keyOrNull(A006),
+			E002: keyOrNull(E002),
+			X002: keyOrNull(X002),
+			bankX002: keyOrNull(bankX002),
+			bankE002: keyOrNull(bankE002),
+		};
+		console.log('debug');
+	}
+
+	static generate() {
+		const keys = {};
+
+		Object.keys({ A006: '', X002: '', E002: '' }).forEach((key) => {
+			keys[key] = Key().generate();
+		});
+
+		return new Keys(keys);
+	}
+
+	setBankKeys(bankKeys) {
+		this.keys.bankX002 = Key().importKey(bankKeys.bankX002);
+		this.keys.bankE002 = Key().importKey(bankKeys.bankE002);
+	}
+
+	a() {
+		return this.keys.A006;
+	}
+
+	e() {
+		return this.keys.E002;
+	}
+
+	x() {
+		return this.keys.X002;
+	}
+
+	bankX() {
+		return this.keys.bankX002;
+	}
+
+	bankE() {
+		return this.keys.bankE002;
+	}
+};
diff --git a/lib/keymanagers/keyRSA.js b/lib/keymanagers/keyRSA.js
index d48d3c1..e359329 100644
--- a/lib/keymanagers/keyRSA.js
+++ b/lib/keymanagers/keyRSA.js
@@ -76,9 +76,18 @@ function rsaPublicKeyPem(modulus_b64, exponent_b64) {
 const BN = require('bn.js');
 const NodeRSA = require('node-rsa');
 
-const { pki: {
- rsa, publicKeyToPem, privateKeyToPem, publicKeyFromPem, privateKeyFromPem
-}, jsbn: { BigInteger } } = require('node-forge');
+const {
+	pki: {
+		rsa,
+		publicKeyToPem,
+		privateKeyToPem,
+		publicKeyFromPem,
+		privateKeyFromPem,
+	},
+	jsbn: {
+		BigInteger,
+	},
+} = require('node-forge');
 
 const isKeyInstance = (obj) => {
 	if (typeof obj !== 'object')