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version 1.8, 2022/04/08 22:28:50 version 1.9, 2022/04/09 09:56:34
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   <ul>    <ul>
     <li>New Features      <li>New Features
     <ul>      <ul>
       <li>...        <li>The RFC 3779 API was ported from OpenSSL.<br>
             Many bugs were fixed, regression tests were added and the code was cleaned up.
         <li>Certificate Transparency was ported from OpenSSL.<br>
             Many internal improvements were made, resulting in cleaner and safer code.<br>
             Regress coverage was added. libssl does not yet make use of it.
     </ul>      </ul>
   
     <li>Portable Improvements      <li>Portable Improvements
     <ul>      <ul>
       <li>...        <li>Enabled ASAN CI on Linux platform.<br>
             Thanks to Ilya Shipitsin (chipitsine &lt;at&gt; gmail com).
         <li>Fixed various POSIX compliance and other portability issues<br>
             found by the port to the Sortix operating system.
         <li>Add libmd as platform specific libraries for Solaris.<br>
             Issue reported from (ihsan &lt;at&gt; opencsw org) on libressl ML.
         <li>Set IA-64 compiler flag only if it is HP-UX with IA-64.<br>
             Suggested from Larkin Nickle (me &lt;at&gt; larbob org) by libressl ML.
         <li>Enabled and scheduled Coverity scan.<br>
             Contributed by Ilya Shipitsin (chipitsine &lt;at&gt; gmail com) on github.
     </ul>      </ul>
   
     <li>API and Documentation Enhancements      <li>Compatibility Changes
     <ul>      <ul>
       <li>...        <li>Most structs that were previously defined in the following headers
             are now opaque as they are in OpenSSL 1.1:<br>
             bio.h, bn.h, comp.h, dh.h, dsa.h, evp.h, hmac.h, ocsp.h, rsa.h,
             x509.h, x509v3.h, x509_vfy.h
         <li>Switch TLSv1.3 cipher names from AEAD- to OpenSSL's TLS_<br>
             OpenSSL added the TLSv1.3 ciphersuites with "RFC names" instead
             of using something consistent with the previous naming.<br>
             Various test suites expect these names (instead of checking for the much
             more sensible cipher numbers).<br>
             The old names are still accepted as aliases.
         <li>Subject alternative names and name constraints are now validated
             when they are added to certificates.<br>
             Various interoperability problems with stacks that validate
             certificates more strictly than OpenSSL can be avoided this way.
         <li>Attempt to opportunistically use the host name for SNI in s_client
     </ul>      </ul>
   
     <li>Compatibility Changes      <li>Bug fixes
     <ul>      <ul>
       <li>...        <li>Avoid infinite loop for custom curves of order 1.<br>
             Found and reported with a reproducer by Hanno Boeck.
             Helpful comments and analysis from David Benjamin.
         <li>Avoid infinite loop on parsing DSA private keys.<br>
             Issue reported with reproducers by Hanno Boeck.
             Additional variants and analysis by David Benjamin.
         <li>A malicious certificate can cause an infinite loop.<br>
             Reported by and fix from Tavis Ormandy and David Benjamin, Google.
         <li>In some situations, the verifier would discard the error on an
             unvalidated certificate chain.<br>
             This would happen when the verification callback was in use,
             instructing the verifier to continue unconditionally.<br>
             This could lead to incorrect decisions being made in software.
         <li>Avoid an infinite loop in SSL_shutdown()
         <li>Fix another return 0 bug in SSL_shutdown()
         <li>Handle zero byte reads/writes that trigger handshakes in the
             TLSv1.3 stack
         <li>A long standing memleak in libtls CRL handling was fixed
     </ul>      </ul>
   
     <li>Testing and Proactive Security      <li>Internal Improvements
     <ul>      <ul>
       <li>...        <li>Cache the SHA-512 hash instead of the SHA-1 hash and cache
             notBefore and notAfter times when X.509 certificates are parsed.
         <li>The X.509 lookup code has been simplified and cleaned up.
         <li>Fixed numerous issues flagged by coverity and the cryptofuzz project
         <li>Increased the number of Miller-Rabin checks in DH and DSA
             key/parameter generation
         <li>Started using the bytestring API in libcrypto for cleaner and
             safer code
         <li>Convert {i2d,d2i}_{,EC_,DSA_,RSA_}PUBKEY{,_bio,_fp}() to templated
             ASN1
         <li>Convert ASN1_OBJECT_new() to calloc()
         <li>Convert ASN1_STRING_type_new() to calloc()
         <li>Rewrite ASN1_STRING_cmp()
         <li>Use calloc() for X509_CRL_METHOD_new() instead of malloc()
         <li>Convert ASN1_PCTX_new() to calloc()
         <li>Replace asn1_tlc_clear and asn1_tlc_clear_nc macros with a function
         <li>Consolidate {d2i,i2d}_{pr,pu}.c
         <li>Remove handling of a NULL BUF_MEM from asn1_collect()
         <li>Pull the recursion depth check up to the top of asn1_collect()
         <li>Inline collect_data() in asn1_collect()
         <li>Convert asn1_d2i_ex_primitive()/asn1_collect() from BUF_MEM to CBB
         <li>Clean up d2i_ASN1_BOOLEAN() and i2d_ASN1_BOOLEAN()
         <li>Consolidate ASN.1 universal tag type data
         <li>Rewrite ASN.1 identifier/length parsing in CBS
         <li>Make OBJ_obj2nid() work correctly with NID_undef
         <li>tlsext_tick_lifetime_hint is now an uint32_t
         <li>Untangle ssl3_get_message() return values
         <li>Rename tls13_buffer to tls_buffer
         <li>Fold DTLS_STATE_INTERNAL into DTLS1_STATE
         <li>Provide a way to determine our maximum legacy version
         <li>Mop up enc_read_ctx and read_hash
         <li>Fold SSL_SESSION_INTERNAL into SSL_SESSION
         <li>Use ssl_force_want_read in the DTLS code
         <li>Add record processing limit to DTLS code
         <li>Add explicit CBS_contains_zero_byte() check in CBS_strdup()
         <li>Improve SNI hostname validation
         <li>Ensure SSL_set_tlsext_host_name() is given a valid hostname
         <li>Fix a strange check in the auto DH codepath
         <li>Factor out/rewrite DHE key exchange
         <li>Convert server serialisation of DHE parameters/public key to new
             functions
         <li>Check DH public key in ssl_kex_peer_public_dhe()
         <li>Move the minimum DHE key size check into ssl_kex_peer_params_dhe()
         <li>Clean up and refactor server side DHE key exchange
         <li>Provide CBS_get_last_u8()
         <li>Provide CBS_get_u64()
         <li>Provide CBS_add_u64()
         <li>Provide various CBS_peek_* functions
         <li>Use CBS_get_last_u8() to find the content type in TLSv1.3 records
         <li>unifdef TLS13_USE_LEGACY_CLIENT_AUTH
         <li>Correct SSL_get_peer_cert_chain() when used with the TLSv1.3 stack
         <li>Only allow zero length key shares when we know we're doing HRR
         <li>Pull key share group/length CBB code up from
             tls13_key_share_public()
         <li>Refactor ssl3_get_server_kex_ecdhe() to separate parsing and
             validation
         <li>Return 0 on failure from send/get kex functions in the legacy
             stack
         <li>Rename tls13_key_share to tls_key_share
         <li>Allocate and free the EVP_AEAD_CTX struct in
             tls13_record_protection
         <li>Convert legacy TLS client to tls_key_share
         <li>Convert legacy TLS server to tls_key_share
         <li>Stop attempting to duplicate the public and private key of dh_tmp
         <li>Rename dh_tmp to dhe_params
         <li>Rename CERT to SSL_CERT and CERT_PKEY to SSL_CERT_PKEY
         <li>Clean up pkey handling in ssl3_get_server_key_exchange()
         <li>Fix GOST skip certificate verify handling
         <li>Simplify tlsext_keyshare_server_parse()
         <li>Plumb decode errors through key share parsing code
         <li>Simplify SSL_get_peer_certificate()
         <li>Cleanup/simplify ssl_cert_type()
         <li>The S3I macro was removed
         <li>The openssl(1) cms, smime and ts subcommands option handling was
             converted and the C source was cleaned up.
     </ul>      </ul>
   
     <li>Internal Improvements      <li>Documentation improvements
     <ul>      <ul>
       <li>...        <li>45 new manual pages, most of which were written from scratch.<br>
             Documentation coverage of ASN.1 and X.509 code has been
             significantly improved.
       </ul>
   
       <li>API additions and removals
       <ul>
         <li>libssl
         <ul>
           <li>API additions
           <ul>
             <li>SSL_get0_verified_chain SSL_peek_ex SSL_read_ex SSL_write_ex
           </ul>
           <li>API stubs for compatibility
           <ul>
             <li>SSL_CTX_get_keylog_callback SSL_CTX_get_num_tickets<br>
                 SSL_CTX_set_keylog_callback SSL_CTX_set_num_tickets<br>
                 SSL_get_num_tickets SSL_set_num_tickets
           </ul>
         </ul>
         <li>libcrypto
         <ul>
           <li>added API (some of these were previously available as macros):
           <ul>
             <li>ASIdOrRange_free ASIdOrRange_new ASIdentifierChoice_free<br>
                 ASIdentifierChoice_new ASIdentifiers_free ASIdentifiers_new<br>
                 ASN1_TIME_diff ASRange_free ASRange_new BIO_get_callback_ex<br>
                 BIO_get_init BIO_set_callback_ex BIO_set_next<br>
                 BIO_set_retry_reason BN_GENCB_set BN_GENCB_set_old<br>
                 BN_abs_is_word BN_get_flags BN_is_negative<br>
                 BN_is_odd BN_is_one BN_is_word BN_is_zero BN_set_flags<br>
                 BN_to_montgomery BN_with_flags BN_zero_ex CTLOG_STORE_free<br>
                 CTLOG_STORE_get0_log_by_id CTLOG_STORE_load_default_file<br>
                 CTLOG_STORE_load_file CTLOG_STORE_new CTLOG_free<br>
                 CTLOG_get0_log_id CTLOG_get0_name CTLOG_get0_public_key<br>
                 CTLOG_new CTLOG_new_from_base64 CT_POLICY_EVAL_CTX_free<br>
                 CT_POLICY_EVAL_CTX_get0_cert CT_POLICY_EVAL_CTX_get0_issuer<br>
                 CT_POLICY_EVAL_CTX_get0_log_store CT_POLICY_EVAL_CTX_get_time<br>
                 CT_POLICY_EVAL_CTX_new CT_POLICY_EVAL_CTX_set1_cert<br>
                 CT_POLICY_EVAL_CTX_set1_issuer<br>
                 CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE<br>
                 CT_POLICY_EVAL_CTX_set_time DH_get0_g DH_get0_p DH_get0_priv_key<br>
                 DH_get0_pub_key DH_get0_q DH_get_length DSA_bits DSA_get0_g<br>
                 DSA_get0_p DSA_get0_priv_key DSA_get0_pub_key DSA_get0_q<br>
                 ECDSA_SIG_get0_r ECDSA_SIG_get0_s EVP_AEAD_CTX_free<br>
                 EVP_AEAD_CTX_new EVP_CIPHER_CTX_buf_noconst<br>
                 EVP_CIPHER_CTX_get_cipher_data EVP_CIPHER_CTX_set_cipher_data<br>
                 EVP_MD_CTX_md_data EVP_MD_CTX_pkey_ctx EVP_MD_CTX_set_pkey_ctx<br>
                 EVP_MD_meth_dup EVP_MD_meth_free EVP_MD_meth_new<br>
                 EVP_MD_meth_set_app_datasize EVP_MD_meth_set_cleanup<br>
                 EVP_MD_meth_set_copy EVP_MD_meth_set_ctrl EVP_MD_meth_set_final<br>
                 EVP_MD_meth_set_flags EVP_MD_meth_set_init<br>
                 EVP_MD_meth_set_input_blocksize EVP_MD_meth_set_result_size<br>
                 EVP_MD_meth_set_update EVP_PKEY_asn1_set_check<br>
                 EVP_PKEY_asn1_set_param_check EVP_PKEY_asn1_set_public_check<br>
                 EVP_PKEY_check EVP_PKEY_meth_set_check<br>
                 EVP_PKEY_meth_set_param_check EVP_PKEY_meth_set_public_check<br>
                 EVP_PKEY_param_check EVP_PKEY_public_check FIPS_mode<br>
                 FIPS_mode_set IPAddressChoice_free IPAddressChoice_new<br>
                 IPAddressFamily_free IPAddressFamily_new IPAddressOrRange_free<br>
                 IPAddressOrRange_new IPAddressRange_free IPAddressRange_new<br>
                 OBJ_get0_data OBJ_length OCSP_resp_get0_certs OCSP_resp_get0_id<br>
                 OCSP_resp_get0_produced_at OCSP_resp_get0_respdata<br>
                 OCSP_resp_get0_signature OCSP_resp_get0_signer<br>
                 OCSP_resp_get0_tbs_sigalg PEM_write_bio_PrivateKey_traditional<br>
                 RSA_get0_d RSA_get0_dmp1 RSA_get0_dmq1 RSA_get0_e RSA_get0_iqmp<br>
                 RSA_get0_n RSA_get0_p RSA_get0_pss_params RSA_get0_q<br>
                 SCT_LIST_free SCT_LIST_print SCT_LIST_validate SCT_free<br>
                 SCT_get0_extensions SCT_get0_log_id SCT_get0_signature<br>
                 SCT_get_log_entry_type SCT_get_signature_nid SCT_get_source<br>
                 SCT_get_timestamp SCT_get_validation_status SCT_get_version<br>
                 SCT_new SCT_new_from_base64 SCT_print SCT_set0_extensions<br>
                 SCT_set0_log_id SCT_set0_signature SCT_set1_extensions<br>
                 SCT_set1_log_id SCT_set1_signature SCT_set_log_entry_type<br>
                 SCT_set_signature_nid SCT_set_source SCT_set_timestamp<br>
                 SCT_set_version SCT_validate SCT_validation_status_string<br>
                 X509_OBJECT_free X509_OBJECT_new X509_REQ_get0_pubkey<br>
                 X509_SIG_get0 X509_SIG_getm X509_STORE_CTX_get_by_subject<br>
                 X509_STORE_CTX_get_num_untrusted<br>
                 X509_STORE_CTX_get_obj_by_subject X509_STORE_CTX_get_verify<br>
                 X509_STORE_CTX_get_verify_cb X509_STORE_CTX_set0_verified_chain<br>
                 X509_STORE_CTX_set_current_cert X509_STORE_CTX_set_error_depth<br>
                 X509_STORE_CTX_set_verify X509_STORE_get_verify<br>
                 X509_STORE_get_verify_cb X509_STORE_set_verify<br>
                 X509_get_X509_PUBKEY X509_get_extended_key_usage<br>
                 X509_get_extension_flags X509_get_key_usage<br>
                 X509v3_addr_add_inherit X509v3_addr_add_prefix<br>
                 X509v3_addr_add_range X509v3_addr_canonize X509v3_addr_get_afi<br>
                 X509v3_addr_get_range X509v3_addr_inherits<br>
                 X509v3_addr_is_canonical X509v3_addr_subset<br>
                 X509v3_addr_validate_path X509v3_addr_validate_resource_set<br>
                 X509v3_asid_add_id_or_range X509v3_asid_add_inherit<br>
                 X509v3_asid_canonize X509v3_asid_inherits<br>
                 X509v3_asid_is_canonical X509v3_asid_subset<br>
                 X509v3_asid_validate_path X509v3_asid_validate_resource_set<br>
                 d2i_ASIdOrRange d2i_ASIdentifierChoice d2i_ASIdentifiers<br>
                 d2i_ASRange d2i_IPAddressChoice d2i_IPAddressFamily<br>
                 d2i_IPAddressOrRange d2i_IPAddressRange d2i_SCT_LIST<br>
                 i2d_ASIdOrRange i2d_ASIdentifierChoice i2d_ASIdentifiers<br>
                 i2d_ASRange i2d_IPAddressChoice i2d_IPAddressFamily<br>
                 i2d_IPAddressOrRange i2d_IPAddressRange i2d_SCT_LIST<br>
                 i2d_re_X509_CRL_tbs i2d_re_X509_REQ_tbs i2d_re_X509_tbs i2o_SCT<br>
                 i2o_SCT_LIST o2i_SCT o2i_SCT_LIST
           </ul>
           <li>removed API:
           <ul>
             <li>ASN1_check_infinite_end ASN1_const_check_infinite_end EVP_dss<br>
                 EVP_dss1 EVP_ecdsa HMAC_CTX_cleanup HMAC_CTX_init<br>
                 NETSCAPE_ENCRYPTED_PKEY_free NETSCAPE_ENCRYPTED_PKEY_new<br>
                 NETSCAPE_PKEY_free NETSCAPE_PKEY_new NETSCAPE_X509_free<br>
                 NETSCAPE_X509_new OBJ_bsearch_ex_ PEM_SealFinal PEM_SealInit<br>
                 PEM_SealUpdate PEM_read_X509_CERT_PAIR<br>
                 PEM_read_bio_X509_CERT_PAIR PEM_write_X509_CERT_PAIR<br>
                 PEM_write_bio_X509_CERT_PAIR X509_CERT_PAIR_free<br>
                 X509_CERT_PAIR_new X509_OBJECT_free_contents asn1_do_adb<br>
                 asn1_do_lock asn1_enc_free asn1_enc_init asn1_enc_restore<br>
                 asn1_enc_save asn1_ex_c2i asn1_get_choice_selector<br>
                 asn1_get_field_ptr asn1_set_choice_selector check_defer<br>
                 d2i_ASN1_BOOLEAN d2i_NETSCAPE_ENCRYPTED_PKEY d2i_NETSCAPE_PKEY<br>
                 d2i_NETSCAPE_X509 d2i_Netscape_RSA d2i_RSA_NET<br>
                 d2i_X509_CERT_PAIR i2d_ASN1_BOOLEAN i2d_NETSCAPE_ENCRYPTED_PKEY<br>
                 i2d_NETSCAPE_PKEY i2d_NETSCAPE_X509 i2d_Netscape_RSA i2d_RSA_NET<br>
                 i2d_X509_CERT_PAIR name_cmp obj_cleanup_defer
           </ul>
         </ul>
     </ul>      </ul>
   </ul>    </ul>
   
Legend:
Removed from v.1.8  
changed lines
  Added in v.1.9