March 2018
Beginner to intermediate
656 pages
20h 9m
English
Content preview from Mastering Blockchain - Second Edition
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Private key generation
To generate the private key, execute the following command:
$ openssl ecparam -name secp256k1 -genkey -noout -out ec-privatekey.pem $ cat ec-privatekey.pem -----BEGIN EC PRIVATE KEY----- MHQCAQEEIJHUIm9NZAgfpUrSxUk/iINq1ghM/ewn/RLNreuR52h/oAcGBSuBBAAK oUQDQgAE0G33mCZ4PKbg5EtwQjk6ucv9Qc9DTr8JdcGXYGxHdzr0Jt1NInaYE0GG ChFMT5pK+wfvSLkYl5ul0oczwWKjng== -----END EC PRIVATE KEY-----
The file named ec-privatekey.pem now contains the Elliptic Curve (EC) private key that is generated based on the secp256k1 curve. In order to generate a public key from a private key, issue the following command:
$ openssl ec -in ec-privatekey.pem -pubout -out ec-pubkey.pem read EC key writing EC key
Reading the file produces the following ...