diff --git a/Sources/WebAuthn/Helpers/ChallengeGenerator.swift b/Sources/WebAuthn/Helpers/ChallengeGenerator.swift
index ecbaa69..c1b0b15 100644
--- a/Sources/WebAuthn/Helpers/ChallengeGenerator.swift
+++ b/Sources/WebAuthn/Helpers/ChallengeGenerator.swift
@@ -11,10 +11,17 @@
 //
 //===----------------------------------------------------------------------===//
 
-package struct ChallengeGenerator: Sendable {
+public struct ChallengeGenerator: Sendable {
+    static let challengeSize: Int = 32
+
     var generate: @Sendable () -> [UInt8]
 
     package static var live: Self {
-        .init(generate: { [UInt8].random(count: 32) })
+        .init(generate: { [UInt8].random(count: challengeSize) })
+    }
+    
+    public init(generate: @escaping @Sendable () -> [UInt8]) {
+        self.generate = generate
     }
+
 }
diff --git a/Sources/WebAuthn/Helpers/KeyedDecodingContainer+decodeURLEncoded.swift b/Sources/WebAuthn/Helpers/KeyedDecodingContainer+decodeURLEncoded.swift
index e6af1b5..3a93451 100644
--- a/Sources/WebAuthn/Helpers/KeyedDecodingContainer+decodeURLEncoded.swift
+++ b/Sources/WebAuthn/Helpers/KeyedDecodingContainer+decodeURLEncoded.swift
@@ -14,7 +14,7 @@
 import Foundation
 
 extension KeyedDecodingContainer {
-    func decodeBytesFromURLEncodedBase64(forKey key: KeyedDecodingContainer.Key) throws -> [UInt8] {
+    public func decodeBytesFromURLEncodedBase64(forKey key: KeyedDecodingContainer.Key) throws -> [UInt8] {
         guard let bytes = try decode(
             URLEncodedBase64.self,
             forKey: key
@@ -28,7 +28,7 @@ extension KeyedDecodingContainer {
         return bytes
     }
 
-    func decodeBytesFromURLEncodedBase64IfPresent(forKey key: KeyedDecodingContainer.Key) throws -> [UInt8]? {
+    public func decodeBytesFromURLEncodedBase64IfPresent(forKey key: KeyedDecodingContainer.Key) throws -> [UInt8]? {
         guard let bytes = try decodeIfPresent(
             URLEncodedBase64.self,
             forKey: key
diff --git a/Sources/WebAuthn/WebAuthnManager.swift b/Sources/WebAuthn/WebAuthnManager.swift
index feebb20..2241e75 100644
--- a/Sources/WebAuthn/WebAuthnManager.swift
+++ b/Sources/WebAuthn/WebAuthnManager.swift
@@ -39,7 +39,7 @@ public struct WebAuthnManager: Sendable {
         self.init(configuration: configuration, challengeGenerator: .live)
     }
     
-    package init(configuration: Configuration, challengeGenerator: ChallengeGenerator) {
+    public init(configuration: Configuration, challengeGenerator: ChallengeGenerator) {
         self.configuration = configuration
         self.challengeGenerator = challengeGenerator
     }