Key Exchange - emvkeyexchange

This section describes the message parameters for EMV Keys Request transaction processing, which you can submit using the XML API integration method. Refer to the Integration Methods section for more information.

The emvkeyexchange transaction requests EMV keys:

To update the device
To initially get the EMV keys
When an EMV Chip Sale (emvchipsale) transaction response returns an ssl_update_emv_keys value of Y
When an EMV Chip Auth Only (emvchipauthonly) transaction response returns an ssl_update_emv_keys value of Y
When an EMV Swipe Sale (emvswipesale) transaction response returns an ssl_update_emv_keys value of Y

In this section:

Request

Field name	Description	Required	Length	Data type
`ssl_merchant_id`	Merchant ID Elavon-assigned Converge account ID.	Required	15	numeric
`ssl_user_id`	Converge User ID The user ID with Hosted Payment API User status that can send transaction requests through the terminal.	Required	15	alphanumeric
`ssl_pin`	Terminal ID Unique identifier of the terminal that will process the transaction request and submit to the Converge gateway. The `ssl_user_id` sending the transaction request must be associated with the terminal that will process the request.	Required	64	alphanumeric
`ssl_transaction_type`	Transaction Type Valid value:`emvkeyexchange`	Required	20	alphanumeric

Response

Field name	Description
`ssl_result`	Transaction Outcome An `ssl_result` = 0 indicates a successful EMV keys request.
`ssl_result_message`	Transaction Result Message A result of SUCCESS indicates that the EMV keys were requested.
`ssl_emv_key_date`	Date of Last Update Date of last host EMV key update. Format: MMDDYYYY
`emv_key_collection`	Parent Element of EMV Key Collection
`emv_key`	EMV Key Parent element of key definition.
`public_key_index`	Public Key Index Indicates the public key in conjunction with the RID.
`hash_id`	Hash ID Identifier of the hash algorithm used to produce the hash results in the digital signature scheme.
`signature_id`	Signature ID Identifier of the digital signature algorithm used with the public key. Value:`01` - Default (always)
`public_key`	Public Key Value
`public_key_length`	Public Key Length A Public Key element used to confirm the size of the public key in the cryptography process.
`exponent`	Exponent The value of the exponent part of the Public Key.
`ssl_checksum`	Checksum A check value calculated on the concatenation of all parts of the Public Key.
[Error]	Returned only if an error occurs. Refer to the Error Codes section for more information.
`errorCode`	Error Code Typically, when the transaction failed validation or the request is incorrect. This will prevent the transaction from going to authorization. This is a numeric field.
`errorMessage`	Error Message Detailed explanation of the error. This field may be changed based on merchant configuration in the user interface.
`errorName`	Error Name Error name or reason for the error.

Example

<txn>
    <ssl_transaction_type>EMVKEYEXCHANGE</ssl_transaction_type>
    <ssl_result>0</ssl_result>
    <ssl_result_message>SUCCESS</ssl_result_message>
    <ssl_emv_key_date>06182015</ssl_emv_key_date>
    <emv_key_collection>
        <emv_key>
            <index>0</index>
            <rid>A000000003</rid>
            <public_key_index>94</public_key_index>
            <hash_id>01</hash_id>
            <signature_id>01</signature_id>
            <public_key>ACD2B12302EE644F3F835ABD1FC7A6F62CCE48FFEC622AA8EF062BEF6F</public_key>
            <public_key_length>80</public_key_length>
            <exponent>03</exponent>
            <checksum>C4A3C43CCF87327D136B804160E47D43B60E6E0F</checksum>
        </emv_key>
        <emv_key>
            <index>1</index>
            <rid>A000000003</rid>
            <public_key_index>95</public_key_index>
            <hash_id>01</hash_id>
            <signature_id>01</signature_id>
            <public_key>BE9E1FA5E9A803852999C4AB432DB28600DCD9DAB76DFAAA47355A0FE37B</public_key>
            <public_key_length>90</public_key_length>
            <exponent>03</exponent>
            <checksum>EE1511CEC71020A9B90443B37B1D5F6E703030F6</checksum>
        </emv_key>
        <emv_key>
            <index>2</index>
            <rid>A000000003</rid>
            <public_key_index>99</public_key_index>
            <hash_id>01</hash_id>
            <signature_id>01</signature_id>
            <public_key>AB79FCC9520896967E776E64444E5DCDD6E13611874F3985722520425295E</public_key>
            <public_key_length>80</public_key_length>
            <exponent>03</exponent>
            <checksum>4ABFFD6B1C51212D05552E431C5B17007D2F5E6D</checksum>
        </emv_key>
    </emv_key_collection>
</txn>