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And, write code to sign Ethereum and Bitcoin messages, derive blockchain addresses and more.\n\n## Resources\n\nRefer to the demos folder for sample calculations. Refer to the exercise-resources folder for sample inputs and outputs.\n\n## Python Libraries\n* [eth_keys](https://pypi.org/project/eth_keys/)\n* [bitcoin](https://pypi.org/project/bitcoin/)\n\n## JavaScript Libraries\n* [eth-crypto](https://www.npmjs.com/package/eth-crypto)\n* [bitcoinjs-lib](https://www.npmjs.com/package/bitcoinjs-lib)\n\n## Ethereum Signature Creator\n\nWrite a program to calculate an Ethereum signature by given message and private key.\n \n* Input: 256-bit private key + input text message. \n* Output: signature + message. \n\n## Ethereum Signature to Address\n\nWrite a program to find the signer’s Ethereum address by given message + Ethereum signature.\n \n* Input: message + signature\n* Output: address\n\n## Ethereum Signature Verifier\n\nWrite a program to verify the Ethereum signature of given message by given Ethereum address.\n \n* Input: message + signature + address \n* Output: valid / invalid. \n\n## Private Key to Bitcoin Address \n\nWrite a program to generate a Bitcoin address by given Bitcoin private key (WIF-encoded). \n\n* Input: BTC Private Key\n* Output: address\n\n### Module\nMI1: Module 5: E1\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbethanyuo%2Fcrypto_signatures","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fbethanyuo%2Fcrypto_signatures","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fbethanyuo%2Fcrypto_signatures/lists"}