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Offline signing your paper wallet using air gapped phone via Electrum

Bitcoin coins sticking out of a wallet. Cryptocurrency. Digital wallet and money.

Paper wallets if done right are one of the most secure ways of storing bitcoin especially if done on an air gapped computer.Continue readingOffline signing your paper wallet using air gapped phone via Electrum

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Cryptography

Bitcoind does not like ECDSA (r, s) pair produced by OpenSSL

Cyber attack with unrecognizable hooded hacker using virtual reality, digital glitch effect.

I am writing transactions manually and have stumbled across a rather bizarre situation.Continue readingBitcoind does not like ECDSA (r, s) pair produced by OpenSSL