R01UH0823EJ0100 Rev.1.00 Page 1487 of 1823
Jul 31, 2019
RX23W Group 42. Trusted Secure IP (TSIP-Lite)
Figure 42.8 Decryption Flow Chart
START
in encryption engine active mode
Input of the initialization vector
Only when input of an initialization vector
is required
Input the key generation information
Checking the integrity of the key
generation information
Setting the key
Set the DMAC
Set the ICU
Input the ciphertext
Decryption of the data
Output the decrypted data
TSIP-Lite library uses the unique ID
END
in TSIP-Lite enabled mode
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