openssl

Try it in 3 steps

1. 1

   Fetch the pinned source

   On a Unix-like system, install bash or zsh, Git, make, Perl 5 with Text::Template, and a C99 compiler; fetch openssl-4.0.3 and continue in openssl-demo.

   git clone --branch openssl-4.0.3 --depth 1 https://github.com/openssl/openssl.git openssl-demo && cd openssl-demoCopy
2. 2

   Build the pinned openssl command

   Configure for the host and build the repository apps/openssl binary so an OS-provided compatibility tool such as LibreSSL is not mistaken for this release.

   ./Configure no-shared && make -j2 apps/opensslCopy
3. 3

   Verify temporary certificate fields

   Create an Ed25519 private key and one-day self-signed certificate in an owned temporary directory, inspect subject, issuer, and SHA256 fingerprint without printing the key, then delete both on exit.

   (tmp_dir=$(mktemp -d) || exit 1; trap 'rm -rf "$tmp_dir"' EXIT; umask 077; apps/openssl req -x509 -newkey ed25519 -keyout "$tmp_dir/key.pem" -out "$tmp_dir/cert.pem" -noenc -subj '/CN=oss-tanbou-demo' -days 1 && test -s "$tmp_dir/key.pem" && test -s "$tmp_dir/cert.pem" && (set -o pipefail; apps/openssl x509 -in "$tmp_dir/cert.pem" -noout -nameopt RFC2253 -subject -issuer -fingerprint -sha256 | tee "$tmp_dir/cert-info.txt") && grep -F 'subject=CN=oss-tanbou-demo' "$tmp_dir/cert-info.txt" && grep -F 'issuer=CN=oss-tanbou-demo' "$tmp_dir/cert-info.txt" && grep -F 'sha256 Fingerprint=' "$tmp_dir/cert-info.txt")Copy

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