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4 entries
On January 15, 2016, Bitcoin Core v0.12 replaced OpenSSL with libsecp256k1 — Wuille and Maxwell's custom elliptic-curve library — for consensus-critical ECDSA verification.
On November 20, 2011, Bitcoin v0.5 shipped with the Crypto++ SHA-256 subset removed and replaced by OpenSSL. Wei Dai's library, a direct codebase dependency since v0.1, was gone.
Security researcher Dan Kaminsky tries to find vulnerabilities in Bitcoin and fails. "I came up with beautiful bugs. But every time I went after the code there was a line that addressed the problem."
Editorial reading of Bitcoin v0.1's unusual distribution and tooling absences (.rar packaging, no version control, no tests), placed against Warez-scene conventions and Kaminsky's 2011 security audit.