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Old 08-01-2008, 06:27 AM   #1
honentan
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PRS505 firmware image file checksum?

1526833661 6258688 cramfs.Fsk.img 81e782cea278b91fdbda1bf4391f71ea052079b2d983c8ffd5 a3c52f5bad6daf40227b3748826715ed12435f00df8ca389aa 5a860ad1004791690c7cdf9f226019575a5e8155847e4a8729 4c33f5056282d1e16fa66234cec28ebfaa6fc6bf2e982a81ad 4f3217220ee69dd66496674a0ac879078026d937cd8ed97756 84d5c5

What mean 1526833661?
And how to get the checksum value? It's not MD5 or SHA1!
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Old 08-01-2008, 12:19 PM   #2
igorsk
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First value uses unix cksum() algo and was only used on the very first PRS-500 firmware. Subsequent firmwares use RSA signature which is the last long hex string.
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Old 08-01-2008, 09:39 PM   #3
honentan
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Quote:
Originally Posted by igorsk View Post
First value uses unix cksum() algo and was only used on the very first PRS-500 firmware. Subsequent firmwares use RSA signature which is the last long hex string.
thx!

And if I replaced one or more files in the image file, how to get a new long hex string?
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Old 08-02-2008, 11:30 AM   #4
igorsk
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You need to generate the RSA signature with the private key. I doubt Sony will share it :P
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Old 08-03-2008, 03:53 AM   #5
honentan
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thx!
So I can't replace my image file on it.
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