Research on a Traceability Scheme for a Grain Supply Chain

Table 4

Notations used in the encryption process.

Notation	Description
	Stage traceability code after extraction during planting (16 digits) + time of the transactions (4 digits)
	Stage traceability code after extraction during storage (16 digits)
	Stage traceability code after extraction during transportation (16 digits) + time of the transactions (4 digits)
	Stage traceability code after extraction during processing I (16 digits) + time of the transactions (4 digits)
(, )	Encryption operation with as plain text and as key
	One-time secret dynamic key
	Final traceability code