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Some Comments on the Security of ECIES with secp256k1

June 22, 2016April 17, 2019 Hartwig MayerNo Comments

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The challenge of modern cryptography is to find efficient but secure encryption schemes. The Elliptic Curve Integrated Encryption Scheme (ECIES) is a widely used encryption scheme which is specified in many standards. It is used for example in Ethereum’s Whisper. While Bitcoin Core does not implement ECIES, it can be employed to send secure messages […]

ECDSA Security in Bitcoin and Ethereum: a Research Survey

May 17, 2016April 17, 2019 Hartwig MayerNo Comments

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Elliptic curve cryptography is becoming more and more popular. One of its main supporters is the cryptocurrency system Bitcoin which uses an elliptic curve scheme for their digital signatures. Smaller key size, a more efficient implementation than the RSA system, and a similar level of security make elliptic curve cryptography an interesting alternative to RSA. […]

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Some Comments on the Security of ECIES with secp256k1

ECDSA Security in Bitcoin and Ethereum: a Research Survey