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docs(secure_boot_v1): add missing digest byte swap information

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- In the secure bootloader digest algorithm section, the final
four byte word byte-swap information was not mentioned.
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harshal.patil 2023-10-12 17:32:32 +05:30
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docs/en/security/secure-boot-v1.rst
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@ -235,6 +235,7 @@ Items marked with (^) are to fulfill hardware restrictions, as opposed to crypto
- Append to the overall ciphertext output.
5. Byte-swap each 4 byte word of the ciphertext (^)
6. Calculate SHA-512 of the ciphertext.
7. Byte-swap each 4 byte word of the above calculated digest. (^)
Output digest is 192 bytes of data: The 128 byte IV, followed by the 64 byte SHA-512 digest.