Hi!
It is just a convenience thing, the key itself is usually PEM encoded and
you could pass it as a string or Buffer, without any additional encoding set.
However, if you do following thing:
var key = fs.readFileSync('key.pem').toString('hex');
s.sign(key, 'hex');
The additional encoding param could suddenly become useful ;)
So, answering your question - it is a design decision.
On Mon, Mar 3, 2014 at 8:56 PM, jas <[email protected]> wrote:
> Does anyone know if the privKey arg when using
> crypto.createSign().update(ct).sign(privKey, encoding) can be a buffer, hex
> encoding string etc?
>
> It seems (according to the docs & source) that it requires an ascii PEM
> (L#2974) formatted private key, which eliminates the use of the
> crypto.DiffieHellman.generateKeys() private key as its only output options
> are binary, hex or base64.
>
> Is this a design decision?
>
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