diff --git a/PayrailsCSE.podspec b/PayrailsCSE.podspec
index f59f001..85c8c66 100644
--- a/PayrailsCSE.podspec
+++ b/PayrailsCSE.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'PayrailsCSE'
-  s.version          = '0.1.1'
+  s.version          = '0.2.0'
   s.summary          = 'Payrails client-side encryption SDK'
 
 # This description is used to generate tags and improve search results.
diff --git a/Sources/PayrailsCSE/PayrailsCSE.swift b/Sources/PayrailsCSE/PayrailsCSE.swift
index 6e7205b..cc61bec 100644
--- a/Sources/PayrailsCSE/PayrailsCSE.swift
+++ b/Sources/PayrailsCSE/PayrailsCSE.swift
@@ -17,21 +17,16 @@ public struct PayrailsCSE {
     var cseConfig: CSEConfiguration?
     
     public init(data: String, version: String) {
-        print("Initializing config of version", version)
         let config = parseConfig(data: data)
         cseConfig = config
     }
     
-    func encryptCard(card: Card) throws -> String {
+    public func encryptCardData(card: Card) throws -> String {
         let jsonCard = try JSONEncoder().encode(card)
-        
-        guard let cseConfig = cseConfig else {
-            throw NSError(domain: "ConfigError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Missing Config"])
-        }
 
         let header = JWEHeader(keyManagementAlgorithm: .RSAOAEP256, contentEncryptionAlgorithm: .A256CBCHS512)
         
-        let publicKey: SecKey = try getPublicKey(cseConfig.tokenization.publicKey)
+        let publicKey: SecKey = try getPublicKey(extractPublicKey())
         let encrypter = Encrypter(keyManagementAlgorithm: .RSAOAEP256, contentEncryptionAlgorithm: .A256CBCHS512, encryptionKey: publicKey)!
         let jwe = try! JWE(header: header, payload: Payload(jsonCard), encrypter: encrypter)
         
@@ -52,6 +47,10 @@ public struct PayrailsCSE {
             throw NSError(domain: "ConfigError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Missing Config"])
         }
         
+        guard let tokenization = cseConfig.tokenization else {
+            throw NSError(domain: "ConfigError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Missing tokenization config"])
+        }
+        
         let card = Card(
             holderReference: cseConfig.holderReference,
             cardNumber: cardNumber,
@@ -61,25 +60,25 @@ public struct PayrailsCSE {
             securityCode: securityCode
         )
         
-        let encryptedCard = try! encryptCard(card: card)
-        guard let tokenizeURL = URL(string: cseConfig.tokenization.links.tokenize.href) else {
+        let encryptedCard = try! encryptCardData(card: card)
+        guard let tokenizeURL = URL(string: tokenization.links.tokenize.href) else {
             throw NSError(domain: "URLParsingError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Invalid URL"])
         }
         
-        
         var request = URLRequest(url: tokenizeURL)
-        request.httpMethod = cseConfig.tokenization.links.tokenize.method
+        request.httpMethod = tokenization.links.tokenize.method
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
         request.setValue("Bearer \(cseConfig.token)", forHTTPHeaderField: "Authorization")
         request.setValue(UUID().uuidString, forHTTPHeaderField: "x-idempotency-key")
-        
+
         let encoder = JSONEncoder()
         let jsonRequest = try encoder.encode(TokenizationRequest(
-            id: cseConfig.tokenization.id,
+            id: tokenization.id,
             holderReference: cseConfig.holderReference,
             encryptedInstrumentDetails: encryptedCard,
             futureUsage: futureUsage,
-            storeInstrument: storeInstrument
+            storeInstrument: storeInstrument,
+            vaultProviderConfigId: tokenization.vaultProviderConfigId
         ))
         request.httpBody = jsonRequest
         
@@ -101,7 +100,7 @@ public struct PayrailsCSE {
                 
                 if httpResponse.statusCode == 201 {
                     let jsonResponse = try JSONDecoder().decode(Instrument.self, from: data)
-                
+                    
                     completion(.success(TokenizeResponse(code: httpResponse.statusCode, instrument: jsonResponse, errors: nil)))
                     return
                 } else {
@@ -152,15 +151,45 @@ public struct PayrailsCSE {
         
         return publicKeyRef
     }
+
+    private func extractPublicKey() throws -> String {
+        guard let cseConfig = cseConfig else {
+            throw NSError(domain: "ConfigError", code: 0, userInfo: [NSLocalizedDescriptionKey: "Missing Config"])
+        }
+        
+        if let tokenization = cseConfig.tokenization {
+            return tokenization.publicKey
+        } else if let vaultConfiguration = cseConfig.vaultConfiguration {
+            return vaultConfiguration.encryptionPublicKey
+        } else {
+            throw NSError(domain: "Error", code: 0, userInfo: [NSLocalizedDescriptionKey: "Missing publicKey in configuration"])
+        }
+    }
 }
 
 public struct Card: Codable {
-    var holderReference: String
-    var cardNumber: String
-    var expiryMonth: String
-    var expiryYear: String
-    var holderName: String?
-    var securityCode: String?
+    public var holderReference: String?
+    public var cardNumber: String?
+    public var expiryMonth: String?
+    public var expiryYear: String?
+    public var holderName: String?
+    public var securityCode: String?
+    
+    public init(
+        holderReference: String?,
+        cardNumber: String?,
+        expiryMonth: String?,
+        expiryYear: String?,
+        holderName: String?,
+        securityCode: String?
+    ) {
+        self.holderReference = holderReference
+        self.cardNumber = cardNumber
+        self.expiryMonth = expiryMonth
+        self.expiryYear = expiryYear
+        self.holderName = holderName
+        self.securityCode = securityCode
+    }
 }
 
 struct TokenizationRequest: Codable {
@@ -169,18 +198,26 @@ struct TokenizationRequest: Codable {
     let encryptedInstrumentDetails: String
     let futureUsage: FutureUsage?
     let storeInstrument: Bool?
+    let vaultProviderConfigId: String?
 }
 
 struct CSEConfiguration: Codable {
     let token: String
     let holderReference: String
-    let tokenization: Tokenization
+    let tokenization: Tokenization?
+    let vaultConfiguration: VaultConfiguration?
+}
+
+struct VaultConfiguration: Codable {
+    let encryptionPublicKey: String
+    let providerConfigId: String?
 }
 
 struct Tokenization: Codable {
     let id: UUID
     let publicKey: String
     let links: Links
+    let vaultProviderConfigId: String?
 }
 
 struct Links: Codable {
diff --git a/Tests/PayrailsCSETests/PayrailsCSETests.swift b/Tests/PayrailsCSETests/PayrailsCSETests.swift
index baa3441..ab07b9f 100644
--- a/Tests/PayrailsCSETests/PayrailsCSETests.swift
+++ b/Tests/PayrailsCSETests/PayrailsCSETests.swift
@@ -2,4 +2,58 @@ import XCTest
 @testable import PayrailsCSE
 
 final class PayrailsCSETests: XCTestCase {
+        
+    func testConfigInitialization() {
+        
+        // Tokenization config
+        let data = "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"
+        
+        let version = "1.0.0"
+        
+        let cse = PayrailsCSE.init(data: data, version: version)
+        XCTAssertNotNil(cse.cseConfig?.tokenization, "Expected tokenization config to exist")
+    }
+    
+    func testCallingTokenizeWithDropInConfig() {
+        let data = "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"
+        
+        let version = "1.0.0"
+        
+        let cse = PayrailsCSE.init(data: data, version: version)
+        
+        do {
+            try cse.tokenize(
+                cardNumber: "4242424242424242",
+                expiryMonth: "12",
+                expiryYear: "30") { (result: Result<TokenizeResponse, Error>) in }
+        } catch let error as NSError {
+            XCTAssertEqual(error.domain, "ConfigError")
+            XCTAssertEqual(error.userInfo[NSLocalizedDescriptionKey] as? String, "Missing tokenization config")
+        } catch {
+            XCTFail("Unexpected error type: \(error)")
+        }
+    }
+    
+    func testCallingEncryptCarDataWithDropInConfig() {
+        let data = "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"
+        
+        let version = "1.0.0"
+        
+        let cse = PayrailsCSE.init(data: data, version: version)
+                
+        do {
+            let encryptedInstrumentDetails = try cse.encryptCardData(card: Card.self(
+                holderReference: "reference",
+                cardNumber: "4242424242424242",
+                expiryMonth: "12",
+                expiryYear: "35",
+                holderName: "George",
+                securityCode: "123"
+            ))
+            
+            XCTAssertNotNil(encryptedInstrumentDetails)
+        } catch {
+            XCTFail("Unexpected error type: \(error)")
+        }
+    }
 }