### Changes between 1.1.1 and 3.0 [xx XXX xxxx]
+ * Add "abspath" and "includedir" pragma's to config files, to prevent,
+ or modify relative pathname inclusion.
+
+ * Rich Salz *
+
+ * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2
+ validated. The module is implemented as an OpenSSL provider, the so-called
+ FIPS provider. A list of all changes related to the FIPS provider would go
+ beyond the scope of this CHANGES file, please consult the README-FIPS and
+ README-PROVIDERS files, as well as the migration guide.
+
+ The FIPS provider is disabled by default and needs to be enabled explicitly
+ at configuration time using the `enable-fips` option. If it is enabled,
+ the FIPS provider gets built and installed in addition to the default and
+ the legacy provider. No separate installation procedure is necessary.
+ There is however a dedicated `install_fips` make target, which serves the
+ special purpose of installing only the FIPS provider into an existing
+ OpenSSL installation.
+
+ *OpenSSL team members and many third party contributors*
+
+ * For the key types DH and DHX the allowed settable parameters are now different.
+ Previously (in 1.1.1) these conflicting parameters were allowed, but will now
+ result in errors. See EVP_PKEY-DH(7) for further details. This affects the
+ behaviour of openssl-genpkey(1) for DH parameter generation.
+
+ *Shane Lontis*
+
+ * The openssl commands that read keys, certificates, and CRLs now
+ automatically detect the PEM or DER format of the input files so it is not
+ necessary to explicitly specify the input format anymore. However if the
+ input format option is used the specified format will be required.
+
+ *David von Oheimb, Richard Levitte, and Tomáš Mráz*
+
+ * Added enhanced PKCS#12 APIs which accept a library context `OSSL_LIB_CTX`
+ and (where relevant) a property query. Other APIs which handle PKCS#7 and
+ PKCS#8 objects have also been enhanced where required. This includes:
+
+ PKCS12_add_key_ex(), PKCS12_add_safe_ex(), PKCS12_add_safes_ex(),
+ PKCS12_create_ex(), PKCS12_decrypt_skey_ex(), PKCS12_init_ex(),
+ PKCS12_item_decrypt_d2i_ex(), PKCS12_item_i2d_encrypt_ex(),
+ PKCS12_key_gen_asc_ex(), PKCS12_key_gen_uni_ex(), PKCS12_key_gen_utf8_ex(),
+ PKCS12_pack_p7encdata_ex(), PKCS12_pbe_crypt_ex(), PKCS12_PBE_keyivgen_ex(),
+ PKCS12_SAFEBAG_create_pkcs8_encrypt_ex(), PKCS5_pbe2_set_iv_ex(),
+ PKCS5_pbe_set0_algor_ex(), PKCS5_pbe_set_ex(), PKCS5_pbkdf2_set_ex(),
+ PKCS5_v2_PBE_keyivgen_ex(), PKCS5_v2_scrypt_keyivgen_ex(),
+ PKCS8_decrypt_ex(), PKCS8_encrypt_ex(), PKCS8_set0_pbe_ex().
+
+ As part of this change the EVP_PBE_xxx APIs can also accept a library
+ context and property query and will call an extended version of the key/IV
+ derivation function which supports these parameters. This includes
+ EVP_PBE_CipherInit_ex(), EVP_PBE_find_ex() and EVP_PBE_scrypt_ex().
+
+ *Jon Spillett*
+
+ * The default manual page suffix ($MANSUFFIX) has been changed to "ossl"
+
+ *Matt Caswell*
+
+ * Added support for Kernel TLS (KTLS). In order to use KTLS, support for it
+ must be compiled in using the "enable-ktls" compile time option. It must
+ also be enabled at run time using the SSL_OP_ENABLE_KTLS option.
+
+ *Boris Pismenny, John Baldwin and Andrew Gallatin*
+
+ * Support for RFC 5746 secure renegotiation is now required by default for
+ SSL or TLS connections to succeed. Applications that require the ability
+ to connect to legacy peers will need to explicitly set
+ SSL_OP_LEGACY_SERVER_CONNECT. Accordingly, SSL_OP_LEGACY_SERVER_CONNECT
+ is no longer set as part of SSL_OP_ALL.
+
+ *Benjamin Kaduk*
+
+ * The signature of the `copy` functional parameter of the
+ EVP_PKEY_meth_set_copy() function has changed so its `src` argument is
+ now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly
+ the signature of the `pub_decode` functional parameter of the
+ EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is
+ now `const X509_PUBKEY *` instead of `X509_PUBKEY *`.
+
+ *David von Oheimb*
+
+ * The error return values from some control calls (ctrl) have changed.
+ One significant change is that controls which used to return -2 for
+ invalid inputs, now return -1 indicating a generic error condition instead.
+
+ *Paul Dale*
+
+ * A public key check is now performed during EVP_PKEY_derive_set_peer().
+ Previously DH was internally doing this during EVP_PKEY_derive().
+ To disable this check use EVP_PKEY_derive_set_peer_ex(dh, peer, 0). This
+ may mean that an error can occur in EVP_PKEY_derive_set_peer() rather than
+ during EVP_PKEY_derive().
+
+ *Shane Lontis*
+
+ * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT,
+ EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT,
+ EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations
+ are deprecated. They are not invoked by the OpenSSL library anymore and
+ are replaced by direct checks of the key operation against the key type
+ when the operation is initialized.
+
+ *Tomáš Mráz*
+
+ * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for
+ more key types including RSA, DSA, ED25519, X25519, ED448 and X448.
+ Previously (in 1.1.1) they would return -2. For key types that do not have
+ parameters then EVP_PKEY_param_check() will always return 1.
+
+ * The output from the command line applications may have minor
+ changes. These are primarily changes in capitalisation and white
+ space. However, in some cases, there are additional differences.
+ For example, the DH parameters output from `dhparam` now lists 'P',
+ 'Q', 'G' and 'pcounter' instead of 'prime', 'generator', 'subgroup
+ order' and 'counter' respectively.
+
+ *Paul Dale*
+
+ * The output from numerous "printing" functions such as X509_signature_print(),
+ X509_print_ex(), X509_CRL_print_ex(), and other similar functions has been
+ amended such that there may be cosmetic differences between the output
+ observed in 1.1.1 and 3.0. This also applies to the "-text" output from the
+ x509 and crl applications.
+
+ *David von Oheimb*
+
+ * Windows thread synchronization uses read/write primitives (SRWLock) when
+ supported by the OS, otherwise CriticalSection continues to be used.
+
+ *Vincent Drake*
+
+ * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to
+ work on read only BIO source/sinks that do not support these functions.
+ This allows piping or redirection of a file BIO using stdin to be buffered
+ into memory. This is used internally in OSSL_DECODER_from_bio().
+
+ *Shane Lontis*
+
* OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1
this function would return one of the values OSSL_STORE_INFO_NAME,
OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or
*Richard Levitte*
+ * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035)
+ for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations.
+ As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present.
+ Correct the semantics of checking the validation chain in case ESSCertID{,v2}
+ contains more than one certificate identifier: This means that all
+ certificates referenced there MUST be part of the validation chain.
+
+ *David von Oheimb*
+
* The implementation of the EVP ciphers CAST5-ECB, CAST5-CBC, CAST5-OFB,
CAST5-CFB, BF-ECB, BF-CBC, BF-OFB, BF-CFB, IDEA-ECB, IDEC-CBC, IDEA-OFB,
IDEA-CFB, SEED-ECB, SEED-CBC, SEED-OFB, SEED-CFB, RC2-ECB, RC2-CBC,
*Matt Caswell*
- * A number of functions handling low level keys or engines were deprecated
+ * A number of functions handling low-level keys or engines were deprecated
including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(),
EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and
EVP_PKEY_get0_siphash(). Applications using engines should instead use
- providers. Applications getting or setting low level keys in an EVP_PKEY
+ providers. Applications getting or setting low-level keys in an EVP_PKEY
should instead use the OSSL_ENCODER or OSSL_DECODER APIs, or alternatively
use EVP_PKEY_fromdata() or EVP_PKEY_get_params().
*Tomáš Mráz*
+ * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA
+ capable processors.
+
+ *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)*
+
* Combining the Configure options no-ec and no-dh no longer disables TLSv1.3.
Typically if OpenSSL has no EC or DH algorithms then it cannot support
connections with TLSv1.3. However OpenSSL now supports "pluggable" groups
* Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_new(),
OCSP_REQ_CTX_free(), OCSP_REQ_CTX_http(), OCSP_REQ_CTX_add1_header(),
- OCSP_REQ_CTX_i2d(), OCSP_REQ_CTX_nbio(), OCSP_REQ_CTX_nbio_d2i(),
+ OCSP_REQ_CTX_i2d() and its special form OCSP_REQ_CTX_set1_req(),
+ OCSP_REQ_CTX_nbio(), OCSP_REQ_CTX_nbio_d2i(),
OCSP_REQ_CTX_get0_mem_bio() and OCSP_set_max_response_length(). These
were used to collect all necessary data to form a HTTP request, and to
perform the HTTP transfer with that request. With OpenSSL 3.0, the
*Rich Salz and Richard Levitte*
+ * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`,
+ which are superseded by `X509_load_http()` and `X509_CRL_load_http()`.
+
+ *David von Oheimb*
+
* Deprecated `OCSP_parse_url()`, which is replaced with `OSSL_HTTP_parse_url`.
*David von Oheimb*
*Dmitry Belyavskiy*
- * All of the low level EC_KEY functions have been deprecated including:
+ * All of the low-level EC_KEY functions have been deprecated including:
EC_KEY_OpenSSL, EC_KEY_get_default_method, EC_KEY_set_default_method,
EC_KEY_get_method, EC_KEY_set_method, EC_KEY_new_method
*Paul Dale*
- * Deprecated EVP_PKEY_set_alias_type(). This function was previously
+ * Removed EVP_PKEY_set_alias_type(). This function was previously
needed as a workaround to recognise SM2 keys. With OpenSSL 3.0, this key
type is internally recognised so the workaround is no longer needed.
- Functionality is still retained as it is, but will only work with
- EVP_PKEYs with a legacy internal key.
+ This is a breaking change from previous OpenSSL versions.
*Richard Levitte*
*Richard Levitte*
- * Renamed `EVP_PKEY_cmp()` to `EVP_PKEY_eq()` and
- `EVP_PKEY_cmp_parameters()` to `EVP_PKEY_parameters_eq()`.
- While the old function names have been retained for backward compatibility
- they should not be used in new developments
- because their return values are confusing: Unlike other `_cmp()` functions
- they do not return 0 in case their arguments are equal.
+ * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()` since their
+ return values were confusing: Unlike other `_cmp()` functions
+ they do not return 0 when their arguments are equal.
+ The new replacement functions `EVP_PKEY_eq()` and `EVP_PKEY_parameters_eq()`
+ should be used.
- *David von Oheimb*
+ *David von Oheimb and Shane Lontis*
* Deprecated `EC_METHOD_get_field_type()`. Applications should switch to
`EC_GROUP_get_field_type()`.
*Antonio Iacono*
+ * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM
+ parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). Its purpose
+ is to support encryption and decryption of a digital envelope that is both
+ authenticated and encrypted using AES GCM mode.
+
+ *Jakub Zelenka*
+
* Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). These
functions are not widely used and now OpenSSL automatically perform this
conversion when needed.
*David von Oheimb*
- * All of the low level RSA functions have been deprecated including:
+ * All of the low-level RSA functions have been deprecated including:
RSA_new_method, RSA_size, RSA_security_bits, RSA_get0_pss_params,
RSA_get_version, RSA_get0_engine, RSA_generate_key_ex,
RSA_meth_set_verify, RSA_meth_get_keygen, RSA_meth_set_keygen,
RSA_meth_get_multi_prime_keygen and RSA_meth_set_multi_prime_keygen.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use L<EVP_PKEY_encrypt_init(3)>,
L<EVP_PKEY_encrypt(3)>, L<EVP_PKEY_decrypt_init(3)> and
L<EVP_PKEY_decrypt(3)>.
+ All of these low-level RSA functions have been deprecated without
+ replacement:
+
+ RSA_blinding_off, RSA_blinding_on, RSA_clear_flags, RSA_get_version,
+ RSAPrivateKey_dup, RSAPublicKey_dup, RSA_set_flags, RSA_setup_blinding and
+ RSA_test_flags.
+
+ All of these RSA flags have been deprecated without replacement:
+
+ RSA_FLAG_BLINDING, RSA_FLAG_CACHE_PRIVATE, RSA_FLAG_CACHE_PUBLIC,
+ RSA_FLAG_EXT_PKEY, RSA_FLAG_NO_BLINDING, RSA_FLAG_THREAD_SAFE and
+ RSA_METHOD_FLAG_NO_CHECK.
+
*Paul Dale*
* X509 certificates signed using SHA1 are no longer allowed at security
*Paul Dale*
- * All of the low level DH functions have been deprecated including:
+ * All of the low-level DH functions have been deprecated including:
DH_OpenSSL, DH_set_default_method, DH_get_default_method, DH_set_method,
DH_new_method, DH_new, DH_free, DH_up_ref, DH_bits, DH_set0_pqg, DH_size,
DH_meth_set_init, DH_meth_get_finish, DH_meth_set_finish,
DH_meth_get_generate_params and DH_meth_set_generate_params.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use L<EVP_PKEY_derive_init(3)>
and L<EVP_PKEY_derive(3)>.
+ These low-level DH functions have been deprecated without replacement:
+
+ DH_clear_flags, DH_get_1024_160, DH_get_2048_224, DH_get_2048_256,
+ DH_set_flags and DH_test_flags.
+
+ The DH_FLAG_CACHE_MONT_P flag has been deprecated without replacement.
+ The DH_FLAG_TYPE_DH and DH_FLAG_TYPE_DHX have been deprecated. Use
+ EVP_PKEY_is_a() to determine the type of a key. There is no replacement for
+ setting these flags.
+
Additionally functions that read and write DH objects such as d2i_DHparams,
i2d_DHparams, PEM_read_DHparam, PEM_write_DHparams and other similar
functions have also been deprecated. Applications should instead use the
OSSL_DECODER and OSSL_ENCODER APIs to read and write DH files.
- Finaly functions that assign or obtain DH objects from an EVP_PKEY such as
+ Finally functions that assign or obtain DH objects from an EVP_PKEY such as
`EVP_PKEY_assign_DH()`, `EVP_PKEY_get0_DH()`, `EVP_PKEY_get1_DH()`, and
`EVP_PKEY_set1_DH()` are also deprecated.
Applications should instead either read or write an
*Paul Dale and Matt Caswell*
- * All of the low level DSA functions have been deprecated including:
+ * All of the low-level DSA functions have been deprecated including:
DSA_new, DSA_free, DSA_up_ref, DSA_bits, DSA_get0_pqg, DSA_set0_pqg,
DSA_get0_key, DSA_set0_key, DSA_get0_p, DSA_get0_q, DSA_get0_g,
DSA_meth_get_finish, DSA_meth_set_finish, DSA_meth_get_paramgen,
DSA_meth_set_paramgen, DSA_meth_get_keygen and DSA_meth_set_keygen.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use L<EVP_DigestSignInit_ex(3)>,
L<EVP_DigestSignUpdate(3)> and L<EVP_DigestSignFinal(3)>.
- Finaly functions that assign or obtain DSA objects from an EVP_PKEY such as
+ These low-level DSA functions have been deprecated without replacement:
+
+ DSA_clear_flags, DSA_dup_DH, DSAparams_dup, DSA_set_flags and
+ DSA_test_flags.
+
+ The DSA_FLAG_CACHE_MONT_P flag has been deprecated without replacement.
+
+ Finally functions that assign or obtain DSA objects from an EVP_PKEY such as
`EVP_PKEY_assign_DSA()`, `EVP_PKEY_get0_DSA()`, `EVP_PKEY_get1_DSA()`, and
`EVP_PKEY_set1_DSA()` are also deprecated.
Applications should instead either read or write an
*Paul Dale*
* Reworked the treatment of EC EVP_PKEYs with the SM2 curve to
- automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC.
- This means that applications don't have to look at the curve NID and
- `EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2)` to get SM2 computations.
- However, they still can, that `EVP_PKEY_set_alias_type()` call acts as
- a no-op when the EVP_PKEY is already of the given type.
+ automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. This is a breaking
+ change from previous OpenSSL versions.
+
+ Unlike in previous OpenSSL versions, this means that applications must not
+ call `EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2)` to get SM2 computations.
+ The `EVP_PKEY_set_alias_type` function has now been removed.
Parameter and key generation is also reworked to make it possible
- to generate EVP_PKEY_SM2 parameters and keys without having to go
- through EVP_PKEY_EC generation and then change the EVP_PKEY type.
- However, code that does the latter will still work as before.
+ to generate EVP_PKEY_SM2 parameters and keys. Applications must now generate
+ SM2 keys directly and must not create an EVP_PKEY_EC key first.
*Richard Levitte*
- * Deprecated low level ECDH and ECDSA functions. These include:
+ * Deprecated low-level ECDH and ECDSA functions. These include:
ECDH_compute_key, ECDSA_do_sign, ECDSA_do_sign_ex, ECDSA_do_verify,
ECDSA_sign_setup, ECDSA_sign, ECDSA_sign_ex, ECDSA_verify and
ECDSA_size.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use the EVP_PKEY_derive(3),
EVP_DigestSign(3) and EVP_DigestVerify(3) functions.
*Paul Dale*
- * All of the low level HMAC functions have been deprecated including:
+ * All low level HMAC functions except for HMAC have been deprecated including:
- HMAC, HMAC_size, HMAC_CTX_new, HMAC_CTX_reset, HMAC_CTX_free,
+ HMAC_size, HMAC_CTX_new, HMAC_CTX_reset, HMAC_CTX_free,
HMAC_Init_ex, HMAC_Update, HMAC_Final, HMAC_CTX_copy, HMAC_CTX_set_flags
and HMAC_CTX_get_md.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use L<EVP_MAC_CTX_new(3)>,
L<EVP_MAC_CTX_free(3)>, L<EVP_MAC_init(3)>, L<EVP_MAC_update(3)>
- and L<EVP_MAC_final(3)>.
+ and L<EVP_MAC_final(3)> or the single-shot MAC function L<EVP_Q_mac(3)>.
- *Paul Dale*
+ *Paul Dale and David von Oheimb*
* Over two thousand fixes were made to the documentation, including:
- Common options (such as -rand/-writerand, TLS version control, etc)
*Rich Salz*
- * All of the low level CMAC functions have been deprecated including:
+ * All of the low-level CMAC functions have been deprecated including:
CMAC_CTX_new, CMAC_CTX_cleanup, CMAC_CTX_free, CMAC_CTX_get0_cipher_ctx,
CMAC_CTX_copy, CMAC_Init, CMAC_Update, CMAC_Final and CMAC_resume.
- Use of these low level functions has been informally discouraged for a long
+ Use of these low-level functions has been informally discouraged for a long
time. Instead applications should use L<EVP_MAC_CTX_new(3)>,
L<EVP_MAC_CTX_free(3)>, L<EVP_MAC_init(3)>, L<EVP_MAC_update(3)>
and L<EVP_MAC_final(3)>.
*Paul Dale*
- * All of the low level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224, SHA256,
+ * The low-level MD2, MD4, MD5, MDC2, RIPEMD160, SHA1, SHA224, SHA256,
SHA384, SHA512 and Whirlpool digest functions have been deprecated.
These include:
MD5_Final, MD5_Transform, MDC2, MDC2_Init, MDC2_Update, MDC2_Final,
RIPEMD160, RIPEMD160_Init, RIPEMD160_Update, RIPEMD160_Final,
RIPEMD160_Transform, SHA1_Init, SHA1_Update, SHA1_Final, SHA1_Transform,
- SHA224_Init, SHA224_Update, SHA224_Final, SHA224_Transform, SHA256_Init,
- SHA256_Update, SHA256_Final, SHA256_Transform, SHA384, SHA384_Init,
- SHA384_Update, SHA384_Final, SHA512, SHA512_Init, SHA512_Update,
- SHA512_Final, SHA512_Transform, WHIRLPOOL, WHIRLPOOL_Init,
+ SHA224_Init, SHA224_Update, SHA224_Final, SHA224_Transform,
+ SHA256_Init, SHA256_Update, SHA256_Final, SHA256_Transform,
+ SHA384_Init, SHA384_Update, SHA384_Final,
+ SHA512_Init, SHA512_Update, SHA512_Final, SHA512_Transform,
+ WHIRLPOOL, WHIRLPOOL_Init,
WHIRLPOOL_Update, WHIRLPOOL_BitUpdate and WHIRLPOOL_Final.
- Use of these low level functions has been informally discouraged
- for a long time. Applications should use the EVP_DigestInit_ex(3),
- EVP_DigestUpdate(3) and EVP_DigestFinal_ex(3) functions instead.
+ Use of these low-level functions has been informally discouraged
+ for a long time. Applications should use the L<EVP_DigestInit_ex(3)>,
+ L<EVP_DigestUpdate(3)>, and L<EVP_DigestFinal_ex(3)> functions instead.
+ Alternatively, the quick one-shot function L<EVP_Q_digest(3)> can be used.
+ SHA1, SHA224, SHA256, SHA384 and SHA512 have changed from functions to macros
+ like this: (EVP_Q_digest(NULL, "SHA256", NULL, d, n, md, NULL) ? md : NULL).
- *Paul Dale*
+ *Paul Dale and David von Oheimb*
* Corrected the documentation of the return values from the `EVP_DigestSign*`
set of functions. The documentation mentioned negative values for some
*Richard Levitte*
- * All of the low level cipher functions have been deprecated including:
+ * All of the low-level cipher functions have been deprecated including:
AES_options, AES_set_encrypt_key, AES_set_decrypt_key, AES_encrypt,
AES_decrypt, AES_ecb_encrypt, AES_cbc_encrypt, AES_cfb128_encrypt,
SEED_set_key, SEED_encrypt, SEED_decrypt, SEED_ecb_encrypt,
SEED_cbc_encrypt, SEED_cfb128_encrypt and SEED_ofb128_encrypt.
- Use of these low level functions has been informally discouraged for
+ Use of these low-level functions has been informally discouraged for
a long time. Applications should use the high level EVP APIs, e.g.
EVP_EncryptInit_ex, EVP_EncryptUpdate, EVP_EncryptFinal_ex, and the
equivalently named decrypt functions instead.
difficult to perform and are not believed likely. Attacks against DH512
are considered just feasible. However, for an attack the target would
have to re-use the DH512 private key, which is not recommended anyway.
- Also applications directly using the low level API BN_mod_exp may be
+ Also applications directly using the low-level API BN_mod_exp may be
affected if they use BN_FLG_CONSTTIME.
([CVE-2019-1551])
*Randall S. Becker*
+ * Added support for FFDHE key exchange in TLS 1.3.
+
+ *Raja Ashok*
+
OpenSSL 1.1.1
-------------
### Changes between 1.1.1j and 1.1.1k [xx XXX xxxx]
+ * Fixed a problem with verifying a certificate chain when using the
+ X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of
+ the certificates present in a certificate chain. It is not set by default.
+
+ Starting from OpenSSL version 1.1.1h a check to disallow certificates in
+ the chain that have explicitly encoded elliptic curve parameters was added
+ as an additional strict check.
+
+ An error in the implementation of this check meant that the result of a
+ previous check to confirm that certificates in the chain are valid CA
+ certificates was overwritten. This effectively bypasses the check
+ that non-CA certificates must not be able to issue other certificates.
+
+ If a "purpose" has been configured then there is a subsequent opportunity
+ for checks that the certificate is a valid CA. All of the named "purpose"
+ values implemented in libcrypto perform this check. Therefore, where
+ a purpose is set the certificate chain will still be rejected even when the
+ strict flag has been used. A purpose is set by default in libssl client and
+ server certificate verification routines, but it can be overridden or
+ removed by an application.
+
+ In order to be affected, an application must explicitly set the
+ X509_V_FLAG_X509_STRICT verification flag and either not set a purpose
+ for the certificate verification or, in the case of TLS client or server
+ applications, override the default purpose.
+ ([CVE-2021-3450])
+
+ *Tomáš Mráz*
+
+ * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously
+ crafted renegotiation ClientHello message from a client. If a TLSv1.2
+ renegotiation ClientHello omits the signature_algorithms extension (where it
+ was present in the initial ClientHello), but includes a
+ signature_algorithms_cert extension then a NULL pointer dereference will
+ result, leading to a crash and a denial of service attack.
+
+ A server is only vulnerable if it has TLSv1.2 and renegotiation enabled
+ (which is the default configuration). OpenSSL TLS clients are not impacted by
+ this issue.
+ ([CVE-2021-3449])
+
+ *Peter Kästle and Samuel Sapalski*
+
### Changes between 1.1.1i and 1.1.1j [16 Feb 2021]
* Fixed the X509_issuer_and_serial_hash() function. It attempts to
*Steve Henson*
- * Add similar low level API blocking to ciphers.
+ * Add similar low-level API blocking to ciphers.
*Steve Henson*
- * Low level digest APIs are not approved in FIPS mode: any attempt
+ * low-level digest APIs are not approved in FIPS mode: any attempt
to use these will cause a fatal error. Applications that *really* want
to use them can use the `private_*` version instead.
* Add new 'medium level' PKCS#12 API. Certificates and keys
can be added using this API to created arbitrary PKCS#12
- files while avoiding the low level API.
+ files while avoiding the low-level API.
New options to PKCS12_create(), key or cert can be NULL and
will then be omitted from the output file. The encryption
options work when creating a PKCS#12 file. New option -nomac
to omit the mac, NONE can be set for an encryption algorithm.
New code is modified to use the enhanced PKCS12_create()
- instead of the low level API.
+ instead of the low-level API.
*Steve Henson*
*Richard Levitte*
- * Change all calls to low level digest routines in the library and
+ * Change all calls to low-level digest routines in the library and
applications to use EVP. Add missing calls to HMAC_cleanup() and
don't assume HMAC_CTX can be copied using memcpy().
*Bodo Moeller*
* New openssl application 'rsautl'. This utility can be
- used for low level RSA operations. DER public key
+ used for low-level RSA operations. DER public key
BIO/fp routines also added.
*Steve Henson*
provides hooks that allow the default DSA functions or functions on a
"per key" basis to be replaced. This allows hardware acceleration and
hardware key storage to be handled without major modification to the
- library. Also added low level modexp hooks and CRYPTO_EX structure and
+ library. Also added low-level modexp hooks and CRYPTO_EX structure and
associated functions.
*Steve Henson*
projects / openssl.git / blobdiff