Skip to content

docs(authentication): note OpenSSL 3.x requirement for Ed25519 #1253

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
rhinocap wants to merge 1 commit into
base: main
Choose a base branch
from
+8 −0
Open

docs(authentication): note OpenSSL 3.x requirement for Ed25519 #1253

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions docs/modelcontextprotocol-io/authentication.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,10 @@ DNS authentication is a domain-based authentication method that relies on a DNS

To perform DNS authentication using the `mcp-publisher` CLI tool, run the following commands in your server project directory to generate a TXT record based on a public/private key pair:

<Note>
The Ed25519 codepath requires **OpenSSL 3.0 or later**. macOS ships with LibreSSL by default (the system `openssl` binary), which does not implement Ed25519 in `genpkey` and fails with `Algorithm Ed25519 not found`. On macOS, install OpenSSL 3 (`brew install openssl@3`) and invoke it explicitly — for example, replace `openssl` with `/opt/homebrew/opt/openssl@3/bin/openssl` (Apple Silicon) or `/usr/local/opt/openssl@3/bin/openssl` (Intel) in the commands below. The ECDSA P-384 codepath works on LibreSSL.
</Note>

<CodeGroup>

```bash Ed25519
Expand Down Expand Up @@ -185,6 +189,10 @@ HTTP authentication is a domain-based authentication method that relies on a `/.

To perform HTTP authentication using the `mcp-publisher` CLI tool, run the following commands in your server project directory to generate an `mcp-registry-auth` file based on a public/private key pair:

<Note>
As with DNS authentication, the Ed25519 codepath requires **OpenSSL 3.0 or later**. macOS's system LibreSSL does not support Ed25519 in `genpkey`. See the note in the [DNS Authentication](#dns-authentication) section for the macOS workaround.
</Note>

<CodeGroup>

```bash Ed25519
Expand Down
Loading