4 ms·

I would be willing to wager there is more inside that PDF than just the contents of the Bitcoin white paper. Curious if anyone has a hash sum handy

greyface- 3y ago
$ wget https://bitcoin.org/bitcoin.pdf [...] $ openssl sha256 bitcoin.pdf SHA256(bitcoin.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 $ openssl sha256 /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf SHA256(/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 (Ventura 13.3)
- birdyrooster 3y ago
  and a universal hash collision attack!? this is amazing stuff from apple
  - eru 3y ago
    They'd also need great compression to put more inside the pdf.
ehPReth 3y ago
/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf sha256: b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 sha512: 2ac531ee521cf93f8419c2018f770fbb42c65396178e079a416e7038d3f9ab9fc2c35c4d838bc8b5dd68f4c13759fe9cdf90a46528412fefe1294cb26beabf4e crc32 (lol): 13af7d06 md5: d56d71ecadf2137be09d8b1d35c6c042 sha1: 8de2fdb04edce612738eb51e14ecc426381f8ed8
- Vecr 3y ago
  Both the sha256 and sha512 exactly match a copy of the whitepaper from 2017, so that would be a pretty sophisticated attack.
cududa 3y ago
The entire directory is really weird. Looks like some sort of directory of assets for automated testing the data from scanners (like, physical document scanners) returning properly? Built in macOS md5 hash reports the PDF's hash as d56d71ecadf2137be09d8b1d35c6c042
eis 3y ago
md5: d56d71ecadf2137be09d8b1d35c6c042 sha1: 8de2fdb04edce612738eb51e14ecc426381f8ed8 sha256: b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 size: 184292 bytes These are from MacOS 10.15.7 The file matches the officially released whitepaper pdf.
jerrysievert 3y ago
Mojave: openssl sha256 /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf SHA256(/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553

greyface- 3y ago

$ wget https://bitcoin.org/bitcoin.pdf [...] $ openssl sha256 bitcoin.pdf SHA256(bitcoin.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 $ openssl sha256 /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf SHA256(/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 (Ventura 13.3)

birdyrooster 3y ago
and a universal hash collision attack!? this is amazing stuff from apple
- eru 3y ago
  They'd also need great compression to put more inside the pdf.

ehPReth 3y ago

/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf sha256: b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 sha512: 2ac531ee521cf93f8419c2018f770fbb42c65396178e079a416e7038d3f9ab9fc2c35c4d838bc8b5dd68f4c13759fe9cdf90a46528412fefe1294cb26beabf4e crc32 (lol): 13af7d06 md5: d56d71ecadf2137be09d8b1d35c6c042 sha1: 8de2fdb04edce612738eb51e14ecc426381f8ed8

Vecr 3y ago
Both the sha256 and sha512 exactly match a copy of the whitepaper from 2017, so that would be a pretty sophisticated attack.

cududa 3y ago

The entire directory is really weird. Looks like some sort of directory of assets for automated testing the data from scanners (like, physical document scanners) returning properly? Built in macOS md5 hash reports the PDF's hash as d56d71ecadf2137be09d8b1d35c6c042

eis 3y ago

md5: d56d71ecadf2137be09d8b1d35c6c042 sha1: 8de2fdb04edce612738eb51e14ecc426381f8ed8 sha256: b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553 size: 184292 bytes These are from MacOS 10.15.7 The file matches the officially released whitepaper pdf.

jerrysievert 3y ago

Mojave: openssl sha256 /System/Library/Image\ Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf SHA256(/System/Library/Image Capture/Devices/VirtualScanner.app/Contents/Resources/simpledoc.pdf)= b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553