Talk:Communication Processor

Problem

Using this file: [[1]] (v1.0.4c2_TMU510_u.bin) -> Source

IV: 737973317347595DFB853B7B4A28105D
Hash: 46EE8C013CB4F1821E184FB74A56FCC7

update.bin = v1.0.4c2_TMU510_u.bin - first 32 bytes (IV + Hash)

openssl enc -aes-256-cbc -d -K E8ED2B817207B70C5DF9090507AF2A8982967620D692B92A59231638402DF13F -iv 737973317347595DFB853B7B4A28105D -in update.bin -out update.tar.gz

Output:

2282524:error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt:evp_enc.c:539:

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This is a syscon firmware update, not a CP update.

CP updates are usually called reftool_cp_xxx.bin (replace xxx by version) you can find these in official sdks. Syscon firmware updates use other keys and another algorithm.

-Mathieulh

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Thanks,

openssl enc -aes-256-cbc -d -K E8ED2B817207B70C5DF9090507AF2A8982967620D692B92A59231638402DF13F -iv FB306DA62E530EB13FB9D0EF8615060A -in reftool_cp_133.bin -out reftool_cp_133.tar.gz

works. (I should learn reading ;))