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24 lines
645 B
24 lines
645 B
2 years ago
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# Hash160
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### Instructions
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Create a function `hash160` that takes one argument, expected to be a string, and returns the hash `sha256` of this argument hashed again with the `ripemd160` algorithm. The return value must be in a binary form.
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Formally, it could be described as:
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```
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hash160 = sha256(ripemd160(input))
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```
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### Usage
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```js
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let hash = hash160("Ducks");
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console.log(hash); // expected result : <Buffer de 5b 73 aa 85 84 02 d8 8c 36 d4 ff 85 29 65 d3 76 ac 6d 19>
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```
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### Notions
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- [Node.js _crypto_](ttps://nodejs.org/docs/latest-v14.x/api/crypto.html)
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- [Wikipedia: Hash_function](https://en.wikipedia.org/wiki/Hash_function)
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