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Author image Chris Novakovic
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Changes for version 1.92 - 2022-01-12

  • New stable release incorporating all changes from developer releases 1.91_01 to 1.91_03.
  • Summary of major changes since version 1.90:
    • Net::SSLeay now supports stable releases of OpenSSL 3.0.
      • OpenSSL 3.0.0 introduces the concept of "providers", which contain cryptographic algorithm implementations. Many outdated, deprecated and/or insecure algorithms have been moved to the "legacy" provider, which may need to be loaded explicitly in order to use them with Net::SSLeay. See "Low level API: OSSL_LIB_CTX and OSSL_PROVIDER related functions" in the Net::SSLeay module documentation for details.
      • Net::SSLeay's built-in PEM_get_string_PrivateKey() function depends on algorithms that have moved to the legacy provider described above; if OpenSSL has been compiled without the legacy provider, the tests t/local/33_x509_create_cert.t and t/local/63_ec_key_generate_key.t will fail when the test suite is run.
      • TLS 1.1 and below may only be used at security level 0 as of OpenSSL 3.0.0; if a minimum required security level is imposed (e.g. in an OpenSSL configuration file managed by the operating system), the tests t/local/44_sess.t and t/local/45_exporter.t will fail when the test suite is run.
    • Net::SSLeay now supports stable releases of LibreSSL from the 3.2 - 3.4 series (with the exception of 3.2.2 and 3.2.3 - see "COMPATIBILITY" in the Net::SSLeay module documentation for details).
      • The TLS 1.3 implementation in LibreSSL 3.1 - 3.3, parts of which are enabled by default, is not fully compatible with the libssl API and may not function as expected with Net::SSLeay; see "KNOWN BUGS AND CAVEATS" in the Net::SSLeay module documentation for details.
    • A number of new libcrypto/libssl constants and functions are now exposed, including SSL_CTX_set_keylog_callback() and SSL_CTX_set_msg_callback(), which are helpful when debugging TLS handshakes. See the release notes for the 1.91 developer releases below for a full list of newly-exposed constants and functions.

Changes for version 1.91_03 - 2022-01-10

  • Avoid misclassifying Clang as GCC in Test::Net::SSLeay's can_thread() function. This fixes test failures in 61_threads-cb-crash.t and 62_threads-ctx_new-deadlock.t on OpenBSD and FreeBSD (and possibly other OSes too). Fixes GH-350.
  • Add the following constants for OpenSSL_version():
    • OPENSSL_VERSION_STRING These constants are new in OpenSSL 3.0.0 release.
  • Update test 03_use.t to print information returned by the new constants.
  • Add more information to 03_use.t print output, including printing OPENSSL_VERSION_NUMBER as a 32bit hex number.
  • Add the following constants for OPENSSL_info() added in OpenSSL 3.0.0.
  • Expose OPENSSL_info(), OPENSSL_version_major(), OPENSSL_version_minor(), OPENSSL_version_patch(), OPENSSL_version_pre_release() and OPENSSL_version_build_metadata() added in OpenSSL 3.0.0. Update 03_use.t diagnostics and 04_basic.t tests to use these functions.
  • Clarify documentation of OpenSSL_version_num(), SSLeay(), SSLeay_version() and OpenSSL_version().
  • Add notes to OpenSSL_version_num() and SSLeay() on how to determine if the library is OpenSSL or LibreSSL and how to interpret the version number these functions return.
  • Add constants OPENSSL_VERSION_MAJOR, OPENSSL_VERSION_MINOR and OPENSSL_VERSION_PATCH. Update OPENSSL_version_major/minor/patch documentation to describe how these library functions relate to Net-SSLeay compile time constants. Add tests to verify the constants and functions return equal values.

Changes for version 1.91_02 - 2021-12-29

  • On OpenVMS, detect vendor SSL111 product based on OpenSSL 1.1.x.
  • Cast the return value of OCSP_SINGLERESP_get0_id to fix a const/non-const mismatch warning that broke the build on OpenVMS.
  • Create SSL_CTXs with Test::Net::SSLeay's new_ctx() function for tests that are broken with LibreSSL 3.2. Partially fixes GH-232.
  • In 36_verify.t, account for the presence of the X509_V_FLAG_LEGACY_VERIFY flag (signalling the use of the legacy X.509 verifier) in LibreSSL 3.2 versions from 3.2.4 onwards. Fixes the remainder of GH-232.
  • Note in the Net::SSLeay documentation that the TLS 1.3 implementation in LibreSSL 3.1 - 3.3, parts of which are enabled by default, is not libssl-compatible. See the "KNOWN BUGS AND CAVEATS" section of lib/Net/SSLeay.pod for details.
  • Add constants for, but not limited to, SSL_CTX_set_msg_callback and SSL_set_msg_callback functions: SSL3_RT_* for record content types, SSL3_MT_* for Handshake and ChangeCipherSpec message types, SSL2_VERSION to complement the list of existing SSL and TLS version constants and SSL2_MT_* for SSLv2 Handshake messages.
  • Expose SSL_CTX_set_keylog_callback and SSL_CTX_get_keylog_callback available with OpenSSL 1.1.1pre1 and later.
  • Enhance 10_rand.t RAND_file_name tests: tests are no longer affected by the runtime environment variables, HOME and RANDFILE. These variables are insted controlled by the tests with local %ENV. Problems related to RAND_file_name were discussed in Github issue GH-152, and there might still be cases when, for example, setuid is used because of OpenSSL's use of glibc secure_getenv() and related functions. Address RAND_file_name differences between OpenSSL versions. Note in SSLeay.pod that RAND_file_name() can return undef with LibreSSL and recent OpenSSL versions.
  • Removed the following exportable symbols from SSLeay.pm:
    • SESSION, clear_error and err have never been defined.
    • add_session, flush_sessions and remove_session were removed in Net::SSLeay 1.04
    • Undocumented X509_STORE_CTX_set_flags() was removed in Net::SSLeay 1.37 when X509_VERIFY_PARAM_* functions were added. These are preferred over directly setting the flags.
  • Clarified Changes entry for release 1.75 to state that CTX_v2_new is not removed from Net::SSLeay. SSLv2 is completely removed in OpenSSL 1.1.0.
  • Beginning with OpenSSL 3.0.0-alpha17, SSL_CTX_get_options() and related functions return uint64_t instead of long. For this reason constant() in constant.c and Net::SSLeay must also be able to return 64bit constants. Add uint64_t definitions to typemap file and update constant() and options functions to use uint64_t with OpenSSL 3.0.0 and later when Perl is compiled with 64bit integers. With 32bit integers, the functions remain as they are: constant() functions return double and options functions return long. This partially fixes GH-315, 32bit integer Perls need to be handled separately.
  • Work around macOS Monterey build failure during 'perl Makefile.PL' that causes perl to exit with 'WARNING: .../perl is loading libcrypto in an unsafe way' or similar message. This fixes GH-329. Thanks to Daniel J. Luke for the report and John Napiorkowski for additional help.

Changes for version 1.91_01 - 2021-10-24

  • Correct X509_STORE_CTX_init() return value to integer. Previous versions of Net::SSLeay return nothing.
  • Update tests to call close() to avoid problems seen with test 44_sess.t, and possibly other tests, running on older Windows Perl versions. Also add some missing calls in tests to shutdown and free ssl structures.
  • Fix multiple formatting errors in the documentation for Net::SSLeay. Thanks to John Jetmore.
  • Check for presence of libssl headers in Makefile.PL, and exit with an error instead of generating an invalid Makefile if they cannot be found. Fixes RT#105189. Thanks to James E Keenan for the report.
  • Added support for SSL_CTX_set_msg_callback/SSL_set_msg_callback Thanks to Tim Aerts.
  • Adjust time in ASN1_TIME_timet based on current offset to GMT to address GH-148. Thanks to Steffen Ullrich.
  • Multiple updates to tests to match OpenSSL 3.0 behaviour. Thanks to Michal Josef Špaček.
  • OpenSSL 3.0 related changes in tests include:
    • TLSv1 and TLSv1.1 require security level 0 starting with 3.0 alpha 5.
    • SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() ignore unknown ciphersuites starting with 3.0 alpha 11.
    • Error code and error string packing and formatting changes.
    • PEM_get_string_PrivateKey default algorithm requires legacy provider.
  • See OpenSSL manual page migration_guide(7) for more information about changes in OpenSSL 3.0.
  • Automatically detect OpenSSL installed via Homebrew on ARM-based macOS systems. Thanks to Graham Knop for the patch.
  • Account for the divergence in TLSv1.3 ciphersuite names between OpenSSL and LibreSSL, which was causing failures of some TLSv1.3 tests with LibreSSL.
  • In 36_verify.t, account for the presence of the X509_V_FLAG_LEGACY_VERIFY flag (signalling the use of the legacy X.509 verifier) in LibreSSL 3.3.2 and above.
  • In 43_misc_functions.t, account for the fact that LibreSSL 3.2.0 and above implement TLSv1.3 without exposing a TLS1_3_VERSION constant.
  • Expose OpenSSL 3.0 functions OSSL_LIB_CTX_get0_global_default, OSSL_PROVIDER_load, OSSL_PROVIDER_try_load, OSSL_PROVIDER_unload, OSSL_PROVIDER_available, OSSL_PROVIDER_do_all OSSL_PROVIDER_get0_name and OSSL_PROVIDER_self_test. Add test files 22_provider.t, 22_provider_try_load.t and 22_provider_try_load_zero_retain.t.
  • With OpenSSL 3.0 and later, the legacy provider is loaded in 33_x509_create_cert.t to allow PEM_get_string_PrivateKey to continue working until its default encryption method is updated. Fixes GH-272 and closes GH-273.
  • Remove the test suite's optional dependency on the non-core modules Test::Exception, Test::NoWarnings and Test::Warn. Tests that verify Net::SSLeay's behaviour when errors occur are now executed regardless of the availability of these modules.
  • Fully automate the process of changing the list of constants exported by Net::SSLeay. Fixes GH-313.
  • Perform function autoloading tests in the test suite. Fixes GH-311.
  • In 36_verify.t, account for the fact that the X509_V_FLAG_LEGACY_VERIFY flag (signalling the use of the legacy X.509 verifier) is no longer exposed as of LibreSSL 3.4.1. Fixes GH-324.


Perl bindings for OpenSSL and LibreSSL
Perl module that lets SSL (HTTPS) sockets be handled as standard file handles.