Connected workflow: Generate key → KCV → TR-31
Calculator reference
Verification evidence and limitations →
What it calculates
Generates, combines and splits TDES components, computes KCVs and encrypts keys under a KEK.
Inputs and methods
16-byte HEX keys; two or three XOR components. Component operations enforce odd parity.
Worked example
In KCV/Combine, enter one key: 0123456789ABCDEFFEDCBA9876543210.
KCV: 08D7B4
Specification and limits
Random components vary on every generation. KEK encryption uses ECB without an integrity check.
KCV method conventions ↗