On Mon, Dec 27, 2021 at 5:13 PM Christopher Schultz
<ch...@christopherschultz.net> wrote:
>
> Michael, All,
>
> I haven't actually committed any source yet, as I'm still polishing it
> up a bit but I intend to release a bunch of PEM-related code on GH under
> this repository:
>
> https://github.com/ChristopherSchultz/pem-utils
>
> The license is AL2.
>
> The expectation is that most common types of cryptographic artifacts
> that are often stored in PEM files can be loaded using this library.
>
> As of this writing, it supports entries that have these headers:
>
> -----BEGIN CERTIFICATE-----
> -----BEGIN PRIVATE KEY-----
> -----BEGIN ENCRYPTED PRIVATE KEY-----
> -----BEGIN RSA PRIVATE KEY-----
> -----BEGIN DSA PRIVATE KEY-----
> -----BEGIN EC PRIVATE KEY-----
> -----BEGIN EC PARAMETERS-----
> -----BEGIN PUBLIC KEY-----
>
> I'm sure there are some combination of features used by e.g. OpenSSL
> that can get past the parser at this point, but my hope is that I'll get
> contributions for some of those less-commons cases.
>
> I also hope it can serve as a set of examples for how to load certain
> types of things.
>
> Originally, this started out as a clean-room implementation starting
> with just the crypto APIs provided by the JRE. I didn't want to look at
> the Tomcat code that performs similar operations as I wasn't sure if
> there were any IP issues with releasing this code separately. The
> original intent was to allow the PostgreSQL project to use the code for
> their JDBC driver, which only supports one particular flavor of DER file
> (yuck!).
>
> Anyhow, it's grown into an implementation of a bare-bones ASN.1 parser
> and explicit support for carious combinations of things.
>
> Maybe I'll commit what I've got and get feedback more quickly, if you'd
> be willing to have a look.

I had to reuse the (super simple) asn1 parser that is in Tomcat [Mark
did it] to do ocsp with Panama (this part of the tomcat-native C code
was better reimplemented as real Java, rather than Panama-C). For
whatever reason, it worked, I got lucky I guess :D
Personally, I'm not very motivated to add a dependency for this,
unless we somehow suddenly need a full parser (and I hope we never
do).

> One of the glaring things I haven't done yet is to provide an interface
> to provide passwords for encrypted entries; as of this moment, I have
> "changeit" and "secret" hard-coded into the Java code because those were
> the passwords I used for the test keys. ;)

Rémy

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