algorithm{string}options{Object} [stream.Writableoptions][]- Returns: {Sign}
Creates and returns a Sign object that uses the given algorithm. Use
[crypto.getHashes()][] to obtain the names of the available digest algorithms.
Optional options argument controls the stream.Writable behavior.
In some cases, a Sign instance can be created using the name of a signature
algorithm, such as 'RSA-SHA256', instead of a digest algorithm. This will use
the corresponding digest algorithm. This does not work for all signature
algorithms, such as 'ecdsa-with-SHA256', so it is best to always use digest
algorithm names.
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