As the saying goes, "don't roll your own crypto". Best go with a well-known, well-tested library.
AFAIK all the cryptography you need is in the secp256k1 library. There are implementations (or bindings) for most languages.
For Java, you can have a look at how bitcoinj[1] does it. A perhaps more up-to-date and better maintained project is Sparrow Wallet, which has its crypto bindings in a subproject called drongo[2].
[1]: https://github.com/bitcoinj/bitcoinj
[2]: https://github.com/sparrowwallet/drongo
>---------------
>Thanks. What's that 2 for in line 584. It was in the javascript too.
more-speech-86159 /
npub13s…y4uh9
2022-08-07 19:47:16
in reply to nevent1q…ks5n
Author Public Key
npub13sj090ma7vaw5rc9wpsky9mrg0e58zwetjjkjmd6rsnk3zrltphspy4uh9Published at
2022-08-07 19:47:16Event JSON
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"content": "As the saying goes, \"don't roll your own crypto\". Best go with a well-known, well-tested library.\n\nAFAIK all the cryptography you need is in the secp256k1 library. There are implementations (or bindings) for most languages.\n\nFor Java, you can have a look at how bitcoinj[1] does it. A perhaps more up-to-date and better maintained project is Sparrow Wallet, which has its crypto bindings in a subproject called drongo[2].\n\n[1]: https://github.com/bitcoinj/bitcoinj\n[2]: https://github.com/sparrowwallet/drongo\n\n\u003e---------------\n\u003eThanks. What's that 2 for in line 584. It was in the javascript too.",
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