@MarkDRyan

Digital security and privacy, applied crypto, computing, technology. Professor at @uobcompsci. Member of @PADtech_team.

 Birmingham/London UK
cs.bham.ac.uk/~mdr
Joined August 2009
  • Tweets112
  • Following88
  • Followers259
7Media
Mark Ryan retweeted
ZKV
@zkv_xyz3 Oct 2024
EVA (Efficient IVC-Based Authentication of Lossy-Encoded Videos) introduces the first video cryptographic protocol that handles arbitrary editing while supporting complex transformations from encoding.
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What a cesspit Twitter is. My first time to login for ages, and all I see is a barrage of right-wing mis-information. My purpose was to DM someone, but I find you now have to pay to do that. Don't expect me back soon!
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I abhor the idea that Twitter will become a WeChat-like super-app. Splitting your digital footprint among many providers is one of the most practically effective ways to protect privacy.
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Thanks police, for publicising this.
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If someone calls me “magnificent “, I shout it out 😀
VeTSS@VetSS_RI31 Mar 2023
We kicked off our second session of the VeTSS inaugural conference with an exciting talk by the magnificent @MarkDRyan on verifying transparency protocols. #vetss
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Mark Ryan retweeted
PAD@PADtech_team31 May 2022
An exciting milestone has been achieved by the PAD team! We are super excited to announce our 1st trustee partnership with @UoB_SecPriv 😁 The centre produces impactful world-leading research in #cybersecurity & #privacy, tackling cyber security challenges in our society 😎 1/3
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I’m at the Maxity launch - it’s a great platform for charities to issue NFTs for their donors. @halfdoof @AidanHarding @mikemistry
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I think that "transparent decryption" is an underrated primitive.
PAD@PADtech_team18 Oct 2021
The PAD protocol, available through our API, allows anyone to share the ability to access a piece of information, whilst creating transparency and proofs as to whether or not that information has actually been accessed. 👉pad.tech/pad-whitepaper/ #transparency #decryption
Simplified PAD schematic, black & white, contains the following components: trustees and validators, Alice the data sharer, Bob the data decryptor, PAD accountability ledger which is the permanent record of decryption requests. Actions performed are displayed as arrows between the components. 1 - Alice arrow Bob: Alice encrypts her data and can send the ciphertext to Bob and/or PAD for storage; 2 - Alice splits the decryption key and provides shares to trustees and validators; 3 - Bob may submit a decryption request; 4 - Trustees and validators see a request and publish their shares; 5 - Bob can reconstruct Alice's data once trustees and validators have responded.

ALT Simplified PAD schematic, black & white, contains the following components: trustees and validators, Alice the data sharer, Bob the data decryptor, PAD accountability ledger which is the permanent record of decryption requests. Actions performed are displayed as arrows between the components. 1 - Alice arrow Bob: Alice encrypts her data and can send the ciphertext to Bob and/or PAD for storage; 2 - Alice splits the decryption key and provides shares to trustees and validators; 3 - Bob may submit a decryption request; 4 - Trustees and validators see a request and publish their shares; 5 - Bob can reconstruct Alice's data once trustees and validators have responded.

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Making decryption transparent will become an important way of ensuring privacy for many applications. I like what we are doing in @PADtech_team.
PAD@PADtech_team27 Sep 2021
Today, we are happy to announce PAD: an API to improve privacy over shared information. It is available to try today. A short 🧵thread: 1/
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0xa4e696aCD1Cb90aEc799F02606296841fd7d8D28 Juice from the Rinkeby faucet is quite addictive. It is slightly embarrassing to have to shoot up in public.
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I'm still exploring Ethereum, and now I need Eth for rinkeby. So here is my address, to satisfy the demands of the faucet. 0xa4e696aCD1Cb90aEc799F02606296841fd7d8D28
If you want to use the goerli testnet faucet, you have to make tweet with your address in it. This is to prevent abuse by bots. (If you don't know what I am talking about, you are not having as nerdy a weekend as I am.) 0xfC1fd09C4908eFa1Ac81a7143a3aee75a934AFb9
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Nice explanation of NHSX proximity tracing system and privacy risk.
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One point @Snowden made is that, just as a slavery contract can't be enforced in law, the predatory "privacy" contracts offered by FB and Goo should be outlawed. #ORGCon2019
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Wonderfully fresh speech by Edward Snowden at @OpenRightsGroup this morning.
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Great crypto panel at Huawei Forum on Future Security.
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At last, someone has thought of a sensible use for blockchain. I knew there must be one out there, somewhere.
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Great to have had @JiangshanYu back for a #cybersecurity seminar on #blockchain consensus & the new proposal RepuCoin
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Systems for automatic facial recognition need regulation. This blog post is convincing.
DuckDuckGo
@DuckDuckGo26 Jul 2018
Great to see Microsoft President @BradSmi detailing the privacy implications of facial recognition technology and calling for a "bipartisan expert commission to assess the best way to regulate the use of facial recognition technology in the U.S." blogs.microsoft.com/on-the-i…

Facial recognition technology: The need for public regulation and corporate responsibility -...

All tools can be used for good or ill. Even a broom can be used to sweep the floor or hit someone over the head. The more powerful the tool, the greater the benefit or damage it can cause. The last...

blogs.microsoft.com
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