Breaking the Anonymity in the Cryptocurrency Monero
Researchers have exploited a flaw in the cryptocurrency Monero to break the anonymity of transactions.
Research paper. BoingBoing post.
EDITED TO ADD (4/13): Brad Tempelton wrote about this years ago.
My 02 Cents • March 28, 2018 2:41 PM
“But one of the defenses against future disclosures of defects in encryption techniques is to throw away the old messages once they’re done with, to reduce the availability of decryptable ciphertexts. And that’s not possible on the blockchain, because the blockchain only works if you can’t delete things from it.”
I said it dozens of time over the years, I’ll say it again. Encryption is a honeypot. Learn it grok it.
If you need to throw something away to protect your privacy then the privacy lies in the your ability to throw it away, not in the encryption.
Which, of course, is why data retention standards are so important.