REGISTER_ENCRYPTION
Last updated: 04-Dec-2024
This command is used when full packet encryption is to be implemented.
Device UI Required: Yes
Request Packet
| Field | Rule | Type | Min | Max | Value | Comments |
|---|---|---|---|---|---|---|
| FUNCTION_TYPE | R | S |
|
|
SECURITY | |
| COMMAND | R | S |
|
|
REGISTER_ENCRYPTION | |
| KEY | R | E |
|
|
The public component of RSA 2048-bit key pair. The value should be DER formatted and base64 encoded. The corresponding private key is stored internally by POS. It is used to decrypt the TERMINAL_KEY returned in the response. |
|
| REG_VER | C | L |
|
|
1.0 or 2.0 Default is 1.0 |
1.0 - SHA1 with PKCS padding 2.0 - SHA2 with OAEP padding |
Response Packet
| Field | Type | Value | Comments |
|---|---|---|---|
| RESPONSE_TEXT | C | Registered MAC_LABEL | |
| RESULT | C | OK or Error Code | Refer to <Error Section> |
| RESULT_CODE | N | -1 59001 59020 59040 59051 |
|
| TERMINATION_STATUS | C | SUCCESS or Error Codes |
|
| TERMINAL_KEY | E | Encrypted AES-128 with Public Key |
This is the terminal key used to encrypt and decrypt the transaction data. It is Base64 data. The decoded, decrypted TERMINAL_KEY is to be used as the MAC Key when encryption is enabled |
| MAC_LABEL | C | P_<Random String> | Value to be stored by POS |
| ENTRY_CODE | C | Value entered by user |
Sent in response for POS to validate for REV_VER=2. Appears as Base64 encoded. |
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