Files
wolfssl/examples
Juliusz Sosinowicz 4578e1390f Implement OCSP responder
OCSP Responder Core API:

- Add new public API for creating and managing an OCSP responder
- Add public wrappers for internal OCSP request/response functions
- OcspRespCheck: fix check when authorized responder is loaded into CM

Header Cleanup:

- Remove circular dependency when including `#include <wolfssl/wolfcrypt/asn.h>` from wolfssl/wolfcrypt/ecc.h and wolfssl/wolfcrypt/rsa.h

OCSP Responder Example (examples/ocsp_responder/):

- Add a command-line OCSP responder for interoperability testing with OpenSSL's `openssl ocsp` client

Test Scripts (scripts/):

- ocsp-responder-openssl-interop.test: Tests wolfSSL OCSP responder with `openssl ocsp` client
- ocsp-stapling-with-wolfssl-responder.test: Tests wolfSSL OCSP responder when doing OCSP stapling

Certificate Infrastructure (certs/ocsp/):

- Add DER-format certificates and keys for OCSP testing
- Update renewcerts.sh to generate DER versions

Known Limitations (documented in src/ocsp.c header comment):

  - Single request/response per OCSP exchange only
  - Key-hash responder ID only (no name-based responder ID)
  - No singleExtensions support
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wolfSSL examples directory

client and server

These directories contain a client (client.c) and server (server.c) that utilize a variety of the wolfSSL library's capabilities. The manner in which both programs operate can depend on the configure or can be specified at run-time depending on the end goal. Both applications contain testing as well as benchmarking code.

Compile

./configure
make

Usage

./examples/server/server

./examples/client/client

Run ./examples/server/server -h and ./examples/client/client -h for usage details.

For simpler wolfSSL TLS server/client examples, visit https://github.com/wolfSSL/wolfssl-examples/tree/master/tls

echoclient and echoserver

These directories contain a client (echoclient.c) and server (echoserver.c) that establish a connection encrypted by wolfSSL. Like the names indicate, once the connection has been established any messages entered into echoclient are sent to and displayed on the echoserver and are then echoed back to echoclient. The nature of the encryption, as well as additional behavior of the two programs, depends on how wolfSSL was configured ( DTLS enabled/disabled, Filesystem enabled/disabled, etc ... ).

Compile

./configure
make

Usage

./examples/echoserver/echoserver

./examples/echoclient/echoclient

benchmark

The benchmark directory offers an application that can help you grasp just how well wolfSSL's TLS functionality is performing on your local machine.

Compile

./configure
make

Usage

./examples/benchmark/tls_bench

The tls_bench executable can also be compiled separately with gcc -lwolfssl -lpthread -o tls_bench tls_bench.c.

Run ./examples/benchmark/tls_bench -? for usage details.

sctp

This directory contains servers and clients that demonstrate wolfSSL's DTLS-SCTP support.

Compile

./configure --enable-sctp
make

Usage

./examples/sctp/sctp-server

./examples/sctp/sctp-client

and

./examples/sctp/sctp-server-dtls

./examples/sctp/sctp-client-dtls

configs

This directory contains example wolfSSL configuration file templates for use when autoconf is not available, such as building with a custom IDE.

See configs/README.md for more details.

asn1

This directory contains an example that prints the ASN.1 data of a BER/DER or PEM encoded file. Configure wolfSSL with --enable-asn-print.

pem

This directory contains an example of converting to/from PEM and DER. Configure wolfSSL with --enable-coding