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Tutorials

Offline signing your paper wallet using air gapped phone via Electrum

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

Categories
Cryptography

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

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

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