Generated EC key has wrong length?
Roger Lipscombe
roger@REDACTED
Thu May 20 17:28:06 CEST 2021
On Thu, 20 May 2021 at 16:26, Roger Lipscombe <roger@REDACTED> wrote:
> The following snippet...
>
> [] = lists:foldl(fun(_, Acc) ->
> Key = public_key:generate_key({namedCurve, secp256r1}),
> {'ECPrivateKey', 1, PrivateKey, _Parameters, _PublicKey} = Key,
> case byte_size(PrivateKey) of
> 32 -> Acc;
> _ -> [Key | Acc]
> end
> end, [], lists:seq(1, 10_000)).
>
> ...fails.
>
> secp256r1 private keys should be 32-bytes long, afaict. Should OTP be
> zero-prefixing the key when converting to binary?
OTP-24.0; should've mentioned that.
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