### Simplified OFX Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html A simplified example demonstrating the structure of an Open Financial Exchange request file. This example includes a sign-on message and a bank statement request, showcasing the SGML-like tagged format used for data identification and delimitation. ```SGML 19961029101000 123-45-6789 MyPassword ENG NCH 1001 MyApp 0500 1001 121099999 999988 CHECKING Y ``` -------------------------------- ### OFX Account Information Response Example (Banking) Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX response message providing detailed account information for a banking account, including status, description, and service details. ```XML 12345 0 INFO 20050102 Power Checking 8002223333 1234567789 12345 CHECKING Y Y Y ACTIVE ``` -------------------------------- ### OFX Account Information Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX request message to retrieve account information, specifying a date for last update. ```XML 12345 20050101 ``` -------------------------------- ### OFX Enrollment Request XML Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX XML message for an enrollment request. This snippet demonstrates how a client would send personal and contact information, along with a desired user ID and security details, to initiate the enrollment process with a financial institution. ```XML 12345 Joe Lee Smith 21 Main St. Anytown TX 87321 USA 123-456-7890 987-654-3210 jsmith@isp.com jls 123-456-1234 jbmam 19530202 ``` -------------------------------- ### OFX GETMIMETRNRQ Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Example of an OFX request to retrieve MIME content, including a transaction ID and the URL of the content to be retrieved. ```OFX 54321 http://www.fi.com/apage.html ``` -------------------------------- ### OFX GETMIMETRNRQ Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html Example of an OFX request to retrieve MIME content, including a transaction ID and URL. ```OFX 54321 http://www.fi.com/apage.html ``` -------------------------------- ### OFX Enrollment Reply XML Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX XML message for an enrollment response. This snippet shows a successful reply, including the transaction UID, status information, a temporary password, the assigned user ID, and its expiration date, as returned by the financial institution. ```XML 12345 0 INFO changeme jls 20060105 ``` -------------------------------- ### HTTP Multi-part MIME OFX Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Illustrates a multi-part MIME HTTP response containing an OFX GETMIMETRNRS and an HTML document. This example demonstrates how different content types can be embedded within a single HTTP response using boundaries. ```HTTP HTTP 1.0 200 OK Content-Type: multipart/x-mixed-replace; boundary =--boundary— --boundary-- Content-Type: application/x-ofx Content-Length: 8732 OFXHEADER:100 DATA:OFXSGML VERSION:102 SECURITY:TYPE1 ENCODING:USASCII 54321 0 INFO http://www.fi.com/apage.html --boundary-- Content-Type: text/html --boundary-- ``` -------------------------------- ### OFX Account Information Response XML Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html An example of an OFX message responding to an account information request. It shows details for a single checking account, including bank ID, account ID, type, and service status. ```XML 12345 0 INFO 19960102 Power Checking 8002223333 1234567789 12345 CHECKING Y Y Y ACTIVE ``` -------------------------------- ### OFX Account Information Request XML Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html An example of an OFX message for requesting account information from a financial institution. It includes a transaction ID and a date for account update. ```XML 12345 19960101 ``` -------------------------------- ### OFX SGML Status Block Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html Illustrates the case sensitivity requirement for element names and enumerated values in Open Financial Exchange (OFX) SGML structures, using a STATUS block example with CODE, SEVERITY, and MESSAGE elements. ```SGML 2000 ERROR General Error ``` -------------------------------- ### OFX Email Synchronization Request and Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html This example demonstrates an OFX email synchronization flow, showing a client's request (MAILSYNCRQ) and the server's subsequent reply (MAILSYNCRS) containing a missed email response. It includes token management and embedded HTML content. ```XML 101 N N Y 102 0 0 INFO MyUserid 20060307 Noelani Federal Savings James Hackleman Re: What do I need to earn interest? You need to maintain $1000 in this account to earn interest. Because your balance was only $750 this month, no interest was earned. You could also switch to our new Checking Extra plan that always pays interest. Call us or check our web page http://www.fi.com/check-plans.html for more information. Sincerely, Customer Service Department Original message: I didn’t earn any interest this month. Can you please tell me what I need to do to earn interest on this account? ]]> N Y ``` -------------------------------- ### OFX E-mail Transaction Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html An example of an OFX (Mail Transaction Request) sent by a consumer to a financial institution. This request inquires about earning interest and demonstrates the use of CDATA sections for embedding HTML content within the message body. ```XML 54321 123456789 James Hackleman Noelani Federal Savings What do I need to earn interest? 19960305 I didn’t earn any interest this month. Can you please tell me what I need to do to earn interest on this account? ]]> N Y ``` -------------------------------- ### OFX Recurring Payment Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX request message () used to initiate a new recurring payment. It specifies 12 monthly instances for $395.00 from a checking account to a payee, due on November 15, 2006. ```XML 12 MONTHLY 555432180 763984 CHECKING 395.00 77810 444-78-97572 20061115 Auto loan payment ``` -------------------------------- ### OFX Full Synchronization Example: Initial Client Request and Server Response Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin2.html Demonstrates an initial full synchronization flow in OFX for bill payment. This snippet shows a client's synchronization request and the subsequent server response, including details on how the server provides missing payment transaction responses to synchronize the client. ```XML 123 N 121000248 123456789 CHECKING ``` ```XML 125 N 121000248 123456789 CHECKING 123 ... status details ... details on a payment response 546 ... status details ... details on another payment response ``` -------------------------------- ### JavaScript Function Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html A simple JavaScript function demonstrating a basic return statement for boolean true. ```javascript function example() {\n return true;\n} ``` -------------------------------- ### OFX Request to Activate a Payment Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example OFX message (``) demonstrating how to request the activation of a payment service. It includes a transaction UID, account request details, and the service addition aggregate with bank account information. ```XML 12345 1234567789 12345 CHECKING BPSVC ``` -------------------------------- ### OFX 1.0.3: Activation & Account Information Message Set Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html This section details the Open Financial Exchange (OFX) message set for user activation, enrollment, password acquisition, and account information management. It covers the request and response structures for various operations, including examples and status codes for different scenarios. ```APIDOC 8. Activation & Account Information 8.1 Overview 8.2 Approaches to User Sign-Up with Open Financial Exchange 8.3 Users and Accounts 8.4 Enrollment and Password Acquisition 8.4.1 User IDs 8.4.2 Enrollment Request 8.4.3 Enrollment Response 8.4.4 Enrollment Status Codes 8.4.5 Examples 8.5 Account Information 8.5.1 Request 8.5.2 Response 8.5.3 Account Information Aggregate 8.5.4 Status Codes 8.5.5 Examples 8.6 Service Activation 8.6.1 Activation Request and Response 8.6.2 Service Activation Synchronization 8.6.3 Examples 8.7 Name and Address Changes 8.7.1 8.7.2 8.7.3 Status Codes 8.8 Signup Message Set Profile Information ``` -------------------------------- ### OFX E-mail Transaction Immediate Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html An example of the immediate OFX (Mail Transaction Response) from the financial institution, echoing the consumer's request. This response confirms successful receipt but does not contain the actual answer, which is expected later via a synchronization request. ```XML 54321 0 INFO 123456789 James Hackleman Noelani Federal Savings What do I need to earn interest? 19960305 I didn’t earn any interest this month. Can you please tell me what I need to do to earn interest on this account? ]]> N Y ``` -------------------------------- ### OFX Full Synchronization Example: Client Request with Update and Server Response Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin2.html Illustrates a continuation of the full synchronization flow where a client makes a new payment request while simultaneously including a synchronization update. This avoids a separate re-synchronization step. The snippet also shows the server's response to this combined request. ```XML 125 N 121000248 123456789 CHECKING 12345 ... details of a new payment request ``` ```XML 126 N 121000248 123456789 CHECKING ... details on a payment response to the new request ``` -------------------------------- ### Example OFX Message Set Aggregates Structure Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html Illustrates the hierarchical structure of Open Financial Exchange (OFX) messages within message set aggregates, showing signon and banking message sets containing various requests. This example demonstrates how different message types are encapsulated within their respective versioned message set aggregates. ```XML ... ... ... ... ``` -------------------------------- ### OFX Client Synchronization Request (PMTSYNCRQ) Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-2.html Demonstrates an Open Financial Exchange (OFX) client initiating a full synchronization request for bill payment. The request includes the synchronization token, a flag for rejecting missing items, and the banking account details from which payments originate. This example shows how a client informs the server of its current synchronization state. ```XML 123 N 121000248 123456789 CHECKING ``` -------------------------------- ### OFX Intrabank Transfer and Cancellation Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin4.html Illustrates the structure of an OFX 1.0.2 response for intrabank transfers and cancellations. This example shows a successful transfer response with account details, transfer amount, and projected posting date, followed by a successful cancellation response referencing a previously initiated transfer. ```XML 1006 0 INFO USD 1004 121099999 999988 CHECKING 121099999 999977 SAVINGS 200.00 19970115 20000 1007 0 INFO 1004 ``` -------------------------------- ### OFX Response for Payment Activation Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example OFX message (``) showing a successful response to a payment activation request. It includes the transaction UID, status code, and details of the activated service, confirming its active status. ```XML 12345 0 INFO 1234567789 12345 CHECKING BPSVC ACTIVE ``` -------------------------------- ### OFX E-mail Transaction Immediate Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of the immediate OFX response from the financial institution to an e-mail transaction request. This response echoes the original request and confirms successful receipt, indicated by a status code of 0 and severity INFO. The actual detailed response to the inquiry is expected later via a synchronization request. ```XML 54321 0 INFO MyUserid James Hackleman Noelani Federal Savings What do I need to earn interest? 20060305 I didn’t earn any interest this month. Can you please tell me what I need to do to earn interest on this account? ]]> N Y ``` -------------------------------- ### OFX Server Response for Recurring Transfer Request Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin4.html This OFX XML snippet demonstrates a server's response to an add recurring transfer request. It includes sign-on status, details of the recurring transfer model (e.g., frequency), and information about the first individual transfer scheduled within the immediate posting window. The response shows how the server confirms both the recurring setup and the initial transfer. ```XML 0 INFO 19961101101003 ENG 19961029101003 19961029101003 1001 0 INFO 20000 MONTHLY USD 1000 121099999 999988 CHECKING 121099999 999977 SAVINGS 1000.00 19961115 1001 0 INFO USD 1001 121099999 999988 CHECKING 121099999 999977 SAVINGS 1000.00 19961115 20000 ``` -------------------------------- ### OFX E-Mail Message Set Profile API Documentation Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html Defines the structure and tags for the E-Mail Message Set Profile information within OFX, including support indicators for generic email and GET MIME messages. ```APIDOC _Tag_ _Description_ **** E-mail-message-set-profile-information aggregate **** Opening tag for V1 of the message set profile information **** Common message set information, defined in the profile chapter **** **** Y if server supports generic e-mail message, _Boolean_ **** Y if server supports get MIME message, _Boolean_ **** **** ``` -------------------------------- ### OFX Tag Conventions and Descriptions Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html Defines the conventions for Open Financial Exchange tags, including requirements (bold), optionality, occurrence rules (once, one or more, zero or more), and value types (alphanumeric, numeric, common types). It also provides examples of tag definitions and their descriptions. ```APIDOC OFX Tag Conventions: - Required Tags: - Always included in request/response. - Occur once unless noted as "one or more". - Indicated in **bold**. - Optional Tags: - Occur once if present unless noted as "zero or more". - Value Types: - A-n or N-n: Alphanumeric or Numeric value, n indicates max size. - Common value types referenced by name. Tag Examples: - : Required tag (1 or more) - : Required tag that occurs only once - : Optional tag; this tag can occur multiple times (0 or more) - : Values are A, B, and C - : Takes an alphanumeric value up to 32 characters, A-32 ``` -------------------------------- ### OFX Get HTML Page (MIME) Messages Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Specifies the Open Financial Exchange messages for requesting and receiving MIME-encoded HTML pages from a Financial Institution. ```APIDOC 9.3 Get HTML Page 9.3.1 MIME Get Request and Response : MIME Get Request : MIME Get Response ``` -------------------------------- ### OFX Email Synchronization Request (MAILSYNCRQ) Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Example of an OFX client request for email synchronization. The client sends its current token and specifies preferences for rejecting missing responses, including images, and using HTML. ```APIDOC 101 N N Y ``` -------------------------------- ### OFX Statement Download Response with Account Balance and Transactions Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin4.html This OFX response provides the requested statement data, including sign-on status, server timestamp, and account details. It lists an updated ledger and available balance, along with two example transactions: a check and an ATM withdrawal. ```OFX 0 INFO 19961029101003 ENG 19961029101003 19961029101003 1001 0 INFO USD 121099999 999988 CHECKING 19961001 19961028 CHECK 19961004 200.00 00002 1000 ATM 19961020 19961020 300.00 00003 200.29 199610291120 200.29 199610291120 ``` -------------------------------- ### OFX Server Synchronization Response (PMTSYNCRS) Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-2.html Illustrates an Open Financial Exchange (OFX) server's response to a client's synchronization request. The response includes an updated synchronization token, a LOSTSYNC flag, the originating bank account details, and multiple PMTTRNRS blocks, each detailing a payment transaction response. This example shows how the server provides missing payment information to bring the client up to date. ```XML 125 N 121000248 123456789 CHECKING 123 ... status details ... details on a payment response 546 ... status details ... details on another payment response ``` -------------------------------- ### OFX E-Mail Message Set Profile API Reference Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Defines the aggregate tags and their descriptions for the OFX E-Mail Message Set Profile, including support indicators for generic e-mail and GET MIME messages. This information must be included in the profile response if either e-mail message set is supported. ```APIDOC : E-mail-message-set-profile-information aggregate : Opening tag for V1 of the message set profile information : Common message set information, defined in the profile chapter : Y if server supports generic e-mail message (Boolean) : Y if server supports get MIME message (Boolean) ``` -------------------------------- ### OpenAIModel Class Constructor Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin2.html Documents the `__init__` method of the `OpenAIModel` class, specifying parameters for the model name and an optional provider. ```APIDOC OpenAIModel: __init__(model_name: str, provider: str = 'openai') model_name: The name of the OpenAI model to use provider: The provider to use (defaults to 'openai') ``` -------------------------------- ### OFX Client Bootstrap Communication Process Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html This section describes the sequential steps a client undertakes to initiate communication within the OFX system. It covers how the client obtains necessary server URLs and the subsequent exchange of OFX requests and responses through the web server. ```APIDOC Client Bootstrap Process: 1. Get FI Web Server URL: - Initiator: Client - Target: FI Profile Server - Action: Retrieve URL for the FI Web Server. - Purpose: To enable the client to retrieve a particular message set. 2. Send OFX Request: - Initiator: Client - Target: FI Web Server URL - Forwarding: The request is forwarded from the FI Web Server to the OFX Server. 3. Receive OFX Response: - Initiator: OFX Server - Target: Client - Delivery: The response is sent back to the client via the Web Server. ``` -------------------------------- ### OpenAIModel Class Initialization Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin2.html Documents the `__init__` method of the `OpenAIModel` class, detailing its parameters (`model_name`, `provider`) with their types and default values. This class is designed to interact with OpenAI models. ```APIDOC OpenAIModel: __init__(model_name: str, provider: str = 'openai') model_name: The name of the OpenAI model to use provider: The provider to use (defaults to 'openai') ``` -------------------------------- ### OpenAIModel Initialization API Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-2.html Defines the constructor for an OpenAIModel, including parameters for the model name and an optional provider. This API specification outlines how to instantiate the model. ```APIDOC OpenAIModel: __init__(model_name: str, provider: str = 'openai') model_name: The name of the OpenAI model to use provider: The provider to use (defaults to 'openai') ``` -------------------------------- ### OFX MIME Get Response (GETMIMERS) API Definition Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Defines the structure for an OFX response to a MIME Get request. The response echoes the URL, with the actual content sent as a separate multi-part MIME section. ```APIDOC GETMIMERS: Description: Get-MIME-response aggregate Tags: URL: Description: URL Type: URL ``` -------------------------------- ### OFX Recurring Payment Response Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX response message () confirming the creation of a recurring payment. It includes the server-assigned recurring transaction ID () which is crucial for subsequent modifications or cancellations by the client. ```XML 387687138 12 MONTHLY 555432180 763984 CHECKING 395.00 77810 444-78-97572 20061115 Auto loan payment ``` -------------------------------- ### OFX MIME Get Status Codes Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin3.html Lists the standard status codes returned for OFX MIME Get operations, indicating success or various error conditions such as general errors, duplicate requests, or invalid/unreachable URLs. ```APIDOC MIME Get Status Codes: 0: Success (INFO) 2000: General error (ERROR) 2019: Duplicate request (ERROR) 16502: Invalid URL (ERROR) 16503: Unable to get URL (ERROR) ``` -------------------------------- ### OpenAIModel Class API Definition Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-2.html This snippet defines the structure and initialization method for the OpenAIModel class. It details the parameters required for instantiation, specifically the model name and an optional provider. ```APIDOC OpenAIModel: __init__(model_name: str, provider: str = 'openai') model_name: The name of the OpenAI model to use provider: The provider to use (defaults to 'openai') ``` -------------------------------- ### OpenAIModel Class Constructor API Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html API documentation for the `__init__` method of the `OpenAIModel` class, detailing its parameters, their types, and descriptions. This snippet illustrates how to define a class constructor in an API specification format. ```APIDOC OpenAIModel:\n __init__(model_name: str, provider: str = 'openai')\n model_name: The name of the OpenAI model to use\n provider: The provider to use (defaults to 'openai') ``` -------------------------------- ### Multi-part HTTP Response with OFX and HTML MIME Content Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html Illustrates a multi-part HTTP response (multipart/x-mixed-replace) containing an OFX GETMIMETRNRS response and an HTML page, demonstrating the use of MIME boundaries. ```HTTP HTTP 1.0 200 OK Content-Type: multipart/x-mixed-replace; boundary =--boundary— --boundary-- Content-Type: application/x-ofx Content-Length: 8732 OFXHEADER:100 DATA:OFXSGML VERSION:103 SECURITY:TYPE1 ENCODING:USASCII 54321 0 INFO http://www.fi.com/apage.html --boundary-- Content-Type: text/html --boundary-- ``` -------------------------------- ### OFX E-mail Transaction Request Example Source: https://github.com/ofxutilities/ofxspecs/blob/main/OFX1.0.3/OFX103-3.html An example of an OFX request used by a consumer to inquire about a checking statement. This snippet demonstrates how to structure an e-mail request, including sender, recipient, subject, creation date, and the message body, which is protected within an SGML CDATA section for HTML content. ```XML 54321 MyUserid James Hackleman Noelani Federal Savings What do I need to earn interest? 20060305 I didn’t earn any interest this month. Can you please tell me what I need to do to earn interest on this account? ]]> N Y ``` -------------------------------- ### Building the OFX Request - Cryptographic Steps Source: https://github.com/ofxutilities/ofxspecs/blob/main/ofx1.0.2spec/Ofexfin1.html This section details the cryptographic and encoding steps required to prepare user credentials (password and random octets) for inclusion in an OFX request. It outlines the generation of random data, SHA1 hashing, RSA encryption, and RADIX64 encoding to produce the CT2 ciphertext for the field. It also specifies the minor variations for handling the . ```APIDOC 1. Client generates 16 random octets and places them in NC (see RFC 1750 for recommendations on entropy generation) 2. Client obtains the User’s password (P) 3. Client computes T = SHA1(NS || P || NC) 4. Client generates 57 pseudo-random, non-zero octets and places them in PS (NC may be used to seed the pseudo-random number generator) 5. Client sets D = NC || P || T 6. Client sets EB = 0x00 || BT || PS || 0x00 || D 7. Client RSA-encrypts EB using the Server’s Type 1 public key (obtained from the Server’s Type 1 certificate): CT1 = EKS(EB) (see PKCS #1, §§8.2-8.4) 8. Client encodes the ciphertext for transport: CT2 = RADIX64(CT1). See RFC 1113, §4.3.2.4 and §4.3.2.5. This is a standard encoding method supported by RSA’s Bsafe library and others. 9. Client constructs the body of its OFX request 10. Client copies CT2 to the field of the OFX 11. Client sends the complete OFX request to the Server In , the steps are identical, except that in step 2, P is set to and in step 10, CT2 is copied to the field of the . ```