EasyManua.ls Logo

STMicroelectronics STM32F405

STMicroelectronics STM32F405
1731 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
Cryptographic processor (CRYP) RM0090
716/1731 DocID018909 Rev 11
Figure 218. DES/TDES-ECB mode encryption
1. K: key; C: cipher text; I: input block; O: output block; P: plain text.
Figure 219. DES/TDES-ECB mode decryption
1. K: key; C: cipher text; I: input block; O: output block; P: plain text.
).&)&/
$%!ENCRYPT
+
0 BI TS
$%!DECRYPT
+
$%!ENCRYPT
+
/54&)&/
PLAINTEXT0
CIPHERTEXT#



SWAPPING
/BITS
#BITS
SWAPPING
$!4!490%
$!4!490%
AIB
).&)&/
#BITS
/54&)&/
CIPHERTEXT#
PLAINTEXT0
$%!DECRYPT
+
$%!ENCRYPT
+
$%!DECRYPT
+



)BITS
SWAPPING
/BITS
$!4!490%
$!4!490%
0 BITS
SWAPPING
-36

Table of Contents

Related product manuals