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.
error_outline

important

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>