COSSACK LABS | Solutions for Blockchain
Solution

Making cryptocurrencies secure

With the world slowly realizing that cryptocurrencies, tokenized assets, smart contracts as the new wild west of financial instruments, threats come as well. Regulatory pressure and cybersecurity risks are harder to mitigate when your technological stack is novel and based on new cryptography-based technologies.

Cryptocurrencies and blockchain-based software often require combining novel cryptography with traditional data, application and product security expertise.

Current industry challenges

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Novel crypto is hard

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Poorly implemented crypto and appsec

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Transaction and smart-contract privacy

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Scalability

Modern solutions

ZKPs: SNARKs, SNORKs, STARKs

Traditional security

Custom cryptosystems and primitives

What we offer

Transaction privacy and ZKP

Transaction privacy and ZKP

We specialise in designing privacy-oriented cryptographic layers based on zk-SNARKs and multi-party computation protocols.
Novel cryptography

Novel cryptography

Our team of experienced cryptographers implements complex cryptographic protocols: zero-knowledge proofs, custom curves/signatures, SMPC, homomorphic operations.
Appsec around blockchain

Appsec around blockchain

We design & implement traditional application security, data security and infrastructure securing measures for crypto wallets, nodes, and backends.
Auditing and reviewing

Auditing and reviewing

We perform security audits and design reviews of existing implementations of crypto wallets and blockchain protocols, defining their fitness against threat models and suggesting improvements.

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How we make a difference

Cryptographic expertise

We employ experts with a traditional academic and practical cryptographic background. We maintain open-source cryptographic libraries and share our applied research in whitepapers.

Experience with typical constructions

We have developed production-ready zk-SNARKs implementations, private transactions, multi-signature schemes, and other blockchain-specific cryptosystems.

Real-world crypto

Aside from good niche expertise in blockchain, we have implemented and secured cryptographic controls in many instances – from building end-to-end encrypted applications to DRM-like ML protections.

Our mission is simple.

We help you focus on serving your customers better, while relieving your team from security engineering pains and making your users confident that their data is safe with you.

Contact us

There are many ways we can help: with our products, bespoke solutions, and engineering services. Leave your contact information to connect with our team:

Contact us