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Charles Guillemet proslijedio/la je Tweet
I do like that Trezor is all OSS (primary value IMHO) but in practice I believe it has limited value. The Ledger “smart card pattern” vs “using generic processors” brings a lot of value when assessing against associated threat models.
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Charles Guillemet proslijedio/la je Tweet
I am starting a blog. First post is about the StarkWare Hash Challenge https://affine.group/2020/02/starkware-challenge …
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Still, it's more secure to HODL with a Hardware wallet rather than in an exchange Considering an attacker w/ a physical access to the Trezor, a STRONG passphrase mitigates the attack An attacker with simply a malware on your PC/mobile would get your exchange creds in 1 min...https://twitter.com/DonjonLedger/status/1223269704544018438 …
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"We responsibly disclosed the full details of this attack to the Trezor team [...]. We are going public with this vulnerability disclosure now so that the crypto community can protect themselves before a fix is released by the Trezor team." The attack is not fixable, so ...https://twitter.com/krakenfx/status/1223253508956266496 …
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Charles Guillemet proslijedio/la je Tweet
2/2. The attack is indeed feasible with a low-cost hardware. We built our own card to ensure this. With a few additional efforts you might be able to dump the WHOLE chip in less than 1 minutepic.twitter.com/YuUvvcPpOy
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Charles Guillemet proslijedio/la je Tweet
1/2. Congrats
@kraken for contributing to secure the ecosystem! Your attack is very close to the one we implemented a year ago https://donjon.ledger.com/Unfixable-Key-Extraction-Attack-on-Trezor/ … As the attack is not fixable, we preferred not sharing the details to avoid exploitation on the field.https://twitter.com/krakenfx/status/1223253508956266496 …Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Charles Guillemet proslijedio/la je Tweet
Thanks for joining the cause!
http://bit.ly/2GRkFCt
#PowerOfCrypto#PowerOfBitcoinHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Charles Guillemet proslijedio/la je Tweet
Let’s take back control, for real! On the day of the
#Brexit, we empower people to take control and experience the#PowerOfCrypto. Learn more: https://bit.ly/2GRkFCt pic.twitter.com/OPeJLEM649
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Charles Guillemet proslijedio/la je Tweet
SharePoint CVE-2019-0604 now being exploited in the wild - reports by Saudi (https://www.ncsc.gov.sa/wps/portal/ncsc/home/Alerts/!ut/p/z1/lVLRboJAEPwaH8kud-cBj2elYKkxYgpyLwYR67VyaEts-_c9apM2aYS6T3PJ3O7szIKEJUidn9Rj3qha53vzziRf2fbYDUmA9zMnGqMYzRe3QxpQMUVIQIIsdHNodpDp4rXYq_UAWzDAXV2VZ7xq4arULflQqA1khBPGiyGxkOWOxYiXW57tEWvLGS9dToi33kD6NR0njIU2I9EsRkRBkzCk7o2NAQX5W5w7cgTOEZOJmER0HvHv_x0E2b1cz3zyv_l4oQReqf-vQNndfmEcvzuTLntoIlZPx6MUJsdaN-V7A8v-INM2yh5z-uRlZj3nZ70g8bjpEDt-Evt0ljBIT6p8gwddv1TmFhdXXk-IcKgql34oU1aQWs_bqU_ZJ0-OxIA!/dz/d5/L2dBISEvZ0FBIS9nQSEh/ …) and Canadian (https://cyber.gc.ca/en/alerts/china-chopper-malware-affecting-sharepoint-servers …) National Cyber-Security Centres. Some additional IOCs @ https://otx.alienvault.com/pulse/5cd3f89df12b501c477a6fba …pic.twitter.com/70LQCOmuTn
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Charles Guillemet proslijedio/la je Tweet
A photo is a mathematical representation of your face.https://twitter.com/Apple/status/1215289219972849664 …
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Charles Guillemet proslijedio/la je Tweet
Yet another Intel CPU flaw affects SGX. 2020: Please stop cheating by "solving" crypto problems with SGX magic, it does not work. https://cacheoutattack.com/
#cacheoutHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Sorry for our privacy :(https://twitter.com/schneierblog/status/1219282944465883141 …
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Charles Guillemet proslijedio/la je Tweet
Elliptic curve crypto sucks :-p "Extrapolating (...), at similar classical security levels, elliptic curve cryptography is less secure than RSA against a quantum attack https://eprint.iacr.org/2020/077 pic.twitter.com/UmMHEMG8gv
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Bitcoin Gold (BTG) has been 51% attacked again. 2 deep reorgs in 2 days, both of which contained double-spends... https://gist.github.com/metalicjames/71321570a105940529e709651d0a9765 … No real market rection... ¯\_(ツ)_/¯
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Charles Guillemet proslijedio/la je Tweet
So what does an IoT device need? A hardware root of trust should be provided by the device. This should be a unique identifier and a key which is signed by a mutually trusted authority.
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Charles Guillemet proslijedio/la je Tweet
LASCAR : Ledger's Advanced Side
#ChannelAnalysis#Repository A fast, versatile, and#openSource python3#library designed to facilitate Side-Channel Analysis#LASCAR#Ledger#python#h5py#numba#scipy#keras#tensorflow#sklearn#matplotlib#numpyhttps://github.com/Ledger-Donjon/lascar …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Charles Guillemet proslijedio/la je Tweet
This article is dear to me. While Luc (
@_YouB_ ) wrote the article and did the in-depth analysis, I did the record of the scenario and the initial analysis with REVEN. It wasn't much, but as primarily a developer this was a small dive in RE and good dogfooding.https://twitter.com/tetrane/status/1220465887490134016 …
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Charles Guillemet proslijedio/la je Tweet
NEW:
@Ledger is partnering with dapp provider FLETA, offering legally compliant custody solutions as part of its expansion push in Asia. David Pan /@jp4874 reportshttp://ow.ly/11sY50y2ZV5Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
This is the the methodology followed in the Common Criteria security certification framework leading to these "EAL5+" certification.. It comes with an "Attack Method" document which is not public. It's only shared within the certification scheme.pic.twitter.com/3mLhwhGreY
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It took Kraken Security Labs just 15 minutes to hack both of