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Bitcoin blog

Essence of Bitcoin is innovation that may be related to remittance and asset holding rights and liberation and freedom

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Encrypted Private Keys

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Overview BIP0038 propose standerd specification that encrypting private key by passphrase and encode in Base58Chack.Even in situation where the key is exposed,It will be able to save to safe backup media and transfer between wallets.When p…

Key format

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Overview Bitcoin has notation method of some kinds in private key and public key.Why Bitcoin has some kinds of notation? Because if you adopted compressed notation, It's possible to reduce the size of the public key by 50%! That means we c…

Public key

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Overview Public key indicate to destination of funds. The public key is private key encrypted with elliptic curve cryptography.Public key example 0458e0d3f7cd6d54347a25523dee480199e59541d849abcd4223538397ded94 e30f4f10af03bb48a1af2051c529f…

Private key

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Overview One of the key pairs in public key cryptography is the private key. Use the private key to control access to transaction. Private key was chosen randomly integer (256 bit) from between 1 to p. "p" is「2^256 - 2^32 - 2^9 - 2^8 - 2^…