diff --git a/Examples/CreateAccount/main.swift b/Examples/CreateAccount/main.swift
index daa6c1b5..40d0df7e 100644
--- a/Examples/CreateAccount/main.swift
+++ b/Examples/CreateAccount/main.swift
@@ -22,7 +22,7 @@ defer {
 let client = clientFromEnvironment(eventLoopGroup: eventLoopGroup)
     .setMaxTransactionFee(100_000_000)
 
-let newAccountKey = Ed25519PrivateKey()
+let newAccountKey = Ed25519PrivateKey.generate()!
 
 print("private key for new account: \(newAccountKey)")
 
diff --git a/Sources/Hedera/crypto/KeyList.swift b/Sources/Hedera/crypto/KeyList.swift
index cb676b4a..c11806ea 100644
--- a/Sources/Hedera/crypto/KeyList.swift
+++ b/Sources/Hedera/crypto/KeyList.swift
@@ -1,6 +1,12 @@
 public final class KeyList: PublicKey {
     var keys: [PublicKey]
 
+    override public init() {
+        keys = []
+
+        super.init()
+    }
+
     required init?(_ proto: Proto_Key) {
         guard proto.keyList.keys.count > 0 else { return nil }
         keys = proto.keyList.keys.compactMap(PublicKey.fromProto)
@@ -33,4 +39,18 @@ public final class KeyList: PublicKey {
 
         return proto
     }
+
+    @discardableResult
+    public func add(_ key: PublicKey) -> Self {
+        keys.append(key)
+
+        return self
+    }
+
+    @discardableResult
+    public func addAll(_ keys: [PublicKey]) -> Self {
+        self.keys.append(contentsOf: keys)
+
+        return self
+    }
 }
diff --git a/Sources/Hedera/crypto/ThresholdKey.swift b/Sources/Hedera/crypto/ThresholdKey.swift
index 21e499c0..fb23cd5b 100644
--- a/Sources/Hedera/crypto/ThresholdKey.swift
+++ b/Sources/Hedera/crypto/ThresholdKey.swift
@@ -2,9 +2,9 @@ public final class ThresholdKey: PublicKey {
     let threshold: UInt32
     var keys: [PublicKey]
 
-    init(threshold: UInt32, keys: [PublicKey] = []) {
+    init(threshold: UInt32) {
         self.threshold = threshold
-        self.keys = keys
+        self.keys = []
         super.init()
     }
 
@@ -35,13 +35,13 @@ public final class ThresholdKey: PublicKey {
     }
 
     @discardableResult
-    public func addKey(_ key: PublicKey) -> Self {
+    public func add(_ key: PublicKey) -> Self {
         keys.append(key)
         return self
     }
 
     @discardableResult
-    public func addKeys(_ keys: [PublicKey]) -> Self {
+    public func addAll(_ keys: [PublicKey]) -> Self {
         self.keys.append(contentsOf: keys)
         return self
     }
diff --git a/Sources/Hedera/crypto/ed25519/Ed25519PrivateKey.swift b/Sources/Hedera/crypto/ed25519/Ed25519PrivateKey.swift
index 73de238a..fac18b5c 100644
--- a/Sources/Hedera/crypto/ed25519/Ed25519PrivateKey.swift
+++ b/Sources/Hedera/crypto/ed25519/Ed25519PrivateKey.swift
@@ -8,8 +8,13 @@ public struct Ed25519PrivateKey {
     private let inner: Sign.KeyPair
 
     /// Generate a new private key
-    public init() {
-        inner = sodium.sign.keyPair()!
+    public static func generate() -> Self? {
+        Ed25519PrivateKey()
+    }
+
+    private init?() {
+        guard let keypair = sodium.sign.keyPair() else { return nil }
+        inner = keypair
     }
 
     /// Initialize a private key from bytes