Post Quantum Cryptography, why is it important
Ashley Bedford
9/29/20252 min read
Last night I had the chance to attend a </๐ฑ๐ฒ_๐๐๐ก๐ง๐ฅ๐๐๐๐ญ๐๐> event hosted by Margaret Passe. Thank you for creating such an important space for discussion.
A big thank you as well to Craig Clement from (๐ค๐ฅ๐) for joining us and shining a light on a problem most people arenโt thinking about yet: what happens to our digital security when quantum computers arrive?
๐ค๐ฅ๐ is the company behind the first blockchain built with post-quantum cryptography, designed to stay secure even against future quantum attacks.
๐๐ฆ๐ณ๐ฆโ๐ด ๐ต๐ฉ๐ฆ ๐ธ๐ข๐ฌ๐ฆ-๐ถ๐ฑ ๐ค๐ข๐ญ๐ญ ๐
๐ With ๐ฆ๐ต๐ผ๐ฟโ๐ ๐๐น๐ด๐ผ๐ฟ๐ถ๐๐ต๐บ (developed by Peter Shor), a powerful quantum computer could break the encryption that protects most of todayโs digital systems, including Bitcoin wallets. Specifically, algorithms like ๐ฅ๐ฆ๐ and ๐๐๐๐ฆ๐ (Elliptic Curve Digital Signature Algorithm), which secure blockchains, banking, and much of the internet, would be vulnerable. Once those private keys are exposed, assets can be stolen.
โฑ๏ธ Research shows that, in the best-case scenario, weโd have only about ๐ณ๐ฒ ๐ฑ๐ฎ๐๐ to migrate all Bitcoin into new, quantum-secure wallets. But that estimate assumes ๐ฆ๐ท๐ฆ๐ณ๐บ ๐ด๐ช๐ฏ๐จ๐ญ๐ฆ ๐ต๐ณ๐ข๐ฏ๐ด๐ข๐ค๐ต๐ช๐ฐ๐ฏ ๐ฐ๐ฏ ๐ต๐ฉ๐ฆ ๐ฃ๐ญ๐ฐ๐ค๐ฌ๐ค๐ฉ๐ข๐ช๐ฏ ๐ช๐ด ๐ฅ๐ฆ๐ฅ๐ช๐ค๐ข๐ต๐ฆ๐ฅ ๐ต๐ฐ ๐ฎ๐ช๐จ๐ณ๐ข๐ต๐ช๐ฐ๐ฏ ๐ฐ๐ฏ๐ญ๐บ. In reality, migration could take ๐๐ฒ๐ฎ๐ฟ๐โฆ leaving a dangerous window of vulnerability.
๐ Thankfully, efforts are already underway:
โข ๐ก๐๐ฆ๐ง has standardized new post-quantum algorithms like ML-DSA and SPHINCS+ (SLH-DSA), with HQC as a backup.
โข Companies like SandboxAQ (led by CEO Jack Hidary) are contributing directly to these standards.
โข Meanwhile, quantum hardware leaders like ๐ค๐๐ฎ๐ป๐๐ถ๐ป๐๐๐บ and ๐๐ผ๐ป๐ค are racing to make large-scale, fault-tolerant quantum computers a reality.
๐จ ๐ฝ๐ค๐ฉ๐ฉ๐ค๐ข ๐ก๐๐ฃ๐: When large-scale quantum computers arrive, ๐ฅ๐ฆ๐ and ๐๐๐๐ฆ๐, the encryption behind most of todayโs digital security, will break. Migration isnโt optional. By ๐ฎ๐ฌ๐ฏ๐ฑ, these systems will need to be fully replaced with quantum-safe alternatives.
QRL may have been โtoo earlyโ to the market, but their work is starting to look exactly on time. If you want to start learning, check out QRLโs YouTube channel and get connected with this community.
Thank you again </de_CENTRALIZED> for sparking this conversation. This is one of those topics we canโt afford to ignore.
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