In addition to this basic function of storing the keys, a cryptocurrency wallet more often offers the functionality of encrypting and/or signing information. It also mentioned using cryptographic proof to verify. The project was described as an electronic payment system using cryptographic proof instead of trust. Signing can for example result in executing a smart contract, a cryptocurrency transaction (see “bitcoin transaction” image), identification, or legally signing a ‘document’ (see “application form” image). Record transactions on a blockchain.

In the cryptocurrency space, smart contracts are digitally signed in the same way a cryptocurrency transaction is signed. This would utilize a cryptographic hash function, e.g. ASCII-coded number that starts from 1. Increments as additional keys are needed. The signing keys are held in a cryptocurrency wallet. The hierarchical deterministic (HD) wallet was publicly described in BIP32. A sequential deterministic wallet utilizes a simple method of generating addresses from a known starting string or “seed”.

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Used with a length that depends on the algorithm size of the cryptocurrency‘s technology requirements. Up to this stage no computer or electronic device is required and all key pairs can be mathematically derived and written down by hand. The number is converted to a private key using the specific requirements of the cryptocurrency cryptography algorithm requirement. The private key is used by the owner to access and send cryptocurrency and is private to the owner, whereas the public key is to be shared to any third party to receive cryptocurrency. A public key is then generated from the private key using whichever cryptographic algorithm is required.

DApp browsers are considered to be the browsers of Web3. Are the gateway to access the decentralized applications which are based on blockchain technology. The keys can be used to track ownership, receipt or spend cryptocurrencies. That means all DApp browsers must have a unique code system to unify all the different codes of the DApps. A simple cryptocurrency wallet contains pairs of public and private cryptographic keys. In addition to the basic function of storing the keys, a cryptocurrency wallet may also have one or more of the following characteristics.

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