Our Audit of the 4Mica Payment Network
We audited 4Mica's collateral-backed payment network. Its BLS signatures and netting were correct; the serious risks were in settlement and key management.
2 min readApplied cryptography
2017 · Paris, France
Category
Public audit reports and security advisories from Symbolic Software, including the Telegram MTProto review and the dWallet Labs 2PC-MPC audit. 6 posts in category “Security”.
We audited 4Mica's collateral-backed payment network. Its BLS signatures and netting were correct; the serious risks were in settlement and key management.
2 min readA note on Symbolic Software's technical review of Telegram's MTProto protocol, made public in 2026 through litigation. Covers the auth_key_id tracking vulnerability, the empirical case against Telegram's 'changes regularly' rebuttal, the editorial independence terms of the engagement, and how the document entered the public record.
13 min readWe've updated Noise Explorer to address two bugs in generated Rust and WebAssembly implementations of Noise Protocol Framework handshake patterns.
2 min readThe public report from our audit, with 3MI Labs, of dWallet Labs' 2PC-MPC Rust implementation.
1 min readWe've updated Kyber-K2SO to address a variable timing logic issue.
3 min readThe public report from our review of the Native Labs smart contracts.
1 min read