final Certificate certificate = CertificateFactory.getInstance("X.509").generateCertificate(in);

                final KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
                keyStore.load(null, null);
                keyStore.setCertificateEntry("server", certificate);

    public void test_init_withInvalidSSLCertificate() {
        // Create a temporary invalid certificate file
        File invalidCertFile = null;
        try {
            invalidCertFile = File.createTempFile("invalid_cert", ".crt");
            try (FileWriter writer = new FileWriter(invalidCertFile)) {
                writer.write("INVALID CERTIFICATE CONTENT");
            }

        .build()

    client.newCall(request).execute().use { response ->
      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      for (certificate in response.handshake!!.peerCertificates) {
        println(CertificatePinner.pin(certificate))
      }
    }
  }
}

fun main() {
  CertificatePinning().run()

If a self-signed certificate is being used, the certificate can be added to MinIO's certificates directory, so it can be trusted by the server.

#### DNS SRV Records

 * limitations under the License.
 */
package okhttp3.internal.tls

import java.security.cert.X509Certificate

fun interface TrustRootIndex {
  /** Returns the trusted CA certificate that signed [cert]. */
  fun findByIssuerAndSignature(cert: X509Certificate): X509Certificate?

FROM golang:1.24-alpine AS build

ARG TARGETARCH
ARG RELEASE

ENV GOPATH=/go
ENV CGO_ENABLED=0

WORKDIR /build

# Install curl and minisign
RUN apk add -U --no-cache ca-certificates && \
    apk add -U --no-cache curl && \
    apk add -U --no-cache bash && \
    go install aead.dev/minisign/cmd/minisign@v0.2.1

# Download minio binary and signature files

FROM golang:1.24-alpine AS build

ARG TARGETARCH
ARG RELEASE

ENV GOPATH=/go
ENV CGO_ENABLED=0

# Install curl and minisign
RUN apk add -U --no-cache ca-certificates && \
    apk add -U --no-cache curl && \
    go install aead.dev/minisign/cmd/minisign@v0.2.1

# Download minio binary and signature files
RUN curl -s -q https://dl.min.io/server/minio/release/linux-${TARGETARCH}/archive/minio.${RELEASE} -o /go/bin/minio && \

  /**
   * Configure the server to [want client auth][SSLSocket.setWantClientAuth]. If the
   * client presents a certificate that is [trusted][TrustManager] the handshake will
   * proceed normally. The connection will also proceed normally if the client presents no
   * certificate at all! But if the client presents an untrusted certificate the handshake
   * will fail and no connection will be established.
   */
  public fun requestClientAuth() {

 * explicitly requested), this also includes that proxy information. For secure connections the
 * address also includes the SSL socket factory, hostname verifier, and certificate pinner.
 *
 * HTTP requests that share the same [Address] may also share the same [Connection].
 */
class Address(
  uriHost: String,
  uriPort: Int,

- 📞 [Traefik](https://traefik.io) as a reverse proxy / load balancer.
- 🚢 Deployment instructions using Docker Compose, including how to set up a frontend Traefik proxy to handle automatic HTTPS certificates.