BALTECH SDK wrapper functions reference

§ brp_Crypto_DecryptBlock()

brp_errcode brp_Crypto_DecryptBlock ( brp_Crypto_DecryptBlock_t  params)

This command decrypts an 8-Byte data block given in the Block parameter using the SkipJack algorithm.

If KeyIndex is set to 0x00, KeyValue will be used as encryption key. Otherwise, KeyIndex is interpreted as the index of the corresponding entry in the internal key list. KeyIndex = 0x01 denotes configuration value 0x81, KeyIndex = 0x02 denotes configuration value 0x82, etc.

Parameters
[in]paramsStruct with the following fields:
  • protocol used to execute the command
  • KeyIndex (in) Index of key to use to decrypt data. KeyIndex must be set to 0x00 if a user-defined key, specified in the KeyValue parameter, should be used for decryption.
  • KeyValue (in) If KeyIndex is set to 0x00, this value specifies a user-defined decryption key.
  • Block (in) Data block to decrypt.
  • UnencryptedBlock (out) Unencrypted data block after decryption.
  • mempool (in) is used to store response data. Maybe NULL to use an internal mempool, in this case the data is only available until another command uses the internal mempool