OpenSSL CHANGES
_______________
- Changes between 0.9.8e and 0.9.9 [xx XXX xxxx]
+ Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
+
+ *) Add option -stream to use PKCS#7 streaming in smime utility. New
+ function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
+ to output in BER and PEM format.
+ [Steve Henson]
+
+ *) Experimental support for use of HMAC via EVP_PKEY interface. This
+ allows HMAC to be handled via the EVP_DigestSign*() interface. The
+ EVP_PKEY "key" in this case is the HMAC key, potentially allowing
+ ENGINE support for HMAC keys which are unextractable. New -mac and
+ -macopt options to dgst utility.
+ [Steve Henson]
+
+ *) New option -sigopt to dgst utility. Update dgst to use
+ EVP_Digest{Sign,Verify}*. These two changes make it possible to use
+ alternative signing paramaters such as X9.31 or PSS in the dgst
+ utility.
+ [Steve Henson]
+
+ *) Change ssl_cipher_apply_rule(), the internal function that does
+ the work each time a ciphersuite string requests enabling
+ ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
+ removing ("!foo+bar") a class of ciphersuites: Now it maintains
+ the order of disabled ciphersuites such that those ciphersuites
+ that most recently went from enabled to disabled not only stay
+ in order with respect to each other, but also have higher priority
+ than other disabled ciphersuites the next time ciphersuites are
+ enabled again.
+
+ This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
+ the same ciphersuites as with "HIGH" alone, but in a specific
+ order where the PSK ciphersuites come first (since they are the
+ most recently disabled ciphersuites when "HIGH" is parsed).
+
+ Also, change ssl_create_cipher_list() (using this new
+ funcionality) such that between otherwise identical
+ cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
+ the default order.
+ [Bodo Moeller]
+
+ *) Change ssl_create_cipher_list() so that it automatically
+ arranges the ciphersuites in reasonable order before starting
+ to process the rule string. Thus, the definition for "DEFAULT"
+ (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
+ remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
+ This makes it much easier to arrive at a reasonable default order
+ in applications for which anonymous ciphers are OK (meaning
+ that you can't actually use DEFAULT).
+ [Bodo Moeller; suggested by Victor Duchovni]
+
+ *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
+ processing) into multiple integers instead of setting
+ "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
+ "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
+ (These masks as well as the individual bit definitions are hidden
+ away into the non-exported interface ssl/ssl_locl.h, so this
+ change to the definition of the SSL_CIPHER structure shouldn't
+ affect applications.) This give us more bits for each of these
+ categories, so there is no longer a need to coagulate AES128 and
+ AES256 into a single algorithm bit, and to coagulate Camellia128
+ and Camellia256 into a single algorithm bit, which has led to all
+ kinds of kludges.
+
+ Thus, among other things, the kludge introduced in 0.9.7m and
+ 0.9.8e for masking out AES256 independently of AES128 or masking
+ out Camellia256 independently of AES256 is not needed here in 0.9.9.
+
+ With the change, we also introduce new ciphersuite aliases that
+ so far were missing: "AES128", "AES256", "CAMELLIA128", and
+ "CAMELLIA256".
+ [Bodo Moeller]
+
+ *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
+ Use the leftmost N bytes of the signature input if the input is
+ larger than the prime q (with N being the size in bytes of q).
+ [Nils Larsch]
+
+ *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
+ it yet and it is largely untested.
+ [Steve Henson]
+
+ *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
+ [Nils Larsch]
*) Initial incomplete changes to avoid need for function casts in OpenSSL
when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
- SSL_CTX_set_tlsext_servername_callback()
SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
- SSL_CTX_set_tlsext_servername_arg()
- SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
+ SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
openssl s_client has a new '-servername ...' option.
*) Change 'Configure' script to enable Camellia by default.
[NTT]
- Changes between 0.9.8d and 0.9.8e [XX xxx XXXX]
+ Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
+
+ *) Squeeze another 10% out of IGE mode when in != out.
+ [Ben Laurie]
+
+ *) AES IGE mode speedup.
+ [Dean Gaudet (Google)]
+
+ *) Add the Korean symmetric 128-bit cipher SEED (see
+ http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
+ add SEED ciphersuites from RFC 4162:
+
+ TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
+ TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
+ TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
+ TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
+
+ To minimize changes between patchlevels in the OpenSSL 0.9.8
+ series, SEED remains excluded from compilation unless OpenSSL
+ is configured with 'enable-seed'.
+ [KISA, Bodo Moeller]
+
+ *) Mitigate branch prediction attacks, which can be practical if a
+ single processor is shared, allowing a spy process to extract
+ information. For detailed background information, see
+ http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
+ J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
+ and Necessary Software Countermeasures"). The core of the change
+ are new versions BN_div_no_branch() and
+ BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
+ respectively, which are slower, but avoid the security-relevant
+ conditional branches. These are automatically called by BN_div()
+ and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
+ of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
+ remove a conditional branch.
+
+ BN_FLG_CONSTTIME is the new name for the previous
+ BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
+ modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
+ in the exponent causes BN_mod_exp_mont() to use the alternative
+ implementation in BN_mod_exp_mont_consttime().) The old name
+ remains as a deprecated alias.
+
+ Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
+ RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
+ constant-time implementations for more than just exponentiation.
+ Here too the old name is kept as a deprecated alias.
+
+ BN_BLINDING_new() will now use BN_dup() for the modulus so that
+ the BN_BLINDING structure gets an independent copy of the
+ modulus. This means that the previous "BIGNUM *m" argument to
+ BN_BLINDING_new() and to BN_BLINDING_create_param() now
+ essentially becomes "const BIGNUM *m", although we can't actually
+ change this in the header file before 0.9.9. It allows
+ RSA_setup_blinding() to use BN_with_flags() on the modulus to
+ enable BN_FLG_CONSTTIME.
+
+ [Matthew D Wood (Intel Corp)]
+
+ *) In the SSL/TLS server implementation, be strict about session ID
+ context matching (which matters if an application uses a single
+ external cache for different purposes). Previously,
+ out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
+ set. This did ensure strict client verification, but meant that,
+ with applications using a single external cache for quite
+ different requirements, clients could circumvent ciphersuite
+ restrictions for a given session ID context by starting a session
+ in a different context.
+ [Bodo Moeller]
+
+ *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
+ a ciphersuite string such as "DEFAULT:RSA" cannot enable
+ authentication-only ciphersuites.
+ [Bodo Moeller]
+
+ Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
+
+ *) Since AES128 and AES256 (and similarly Camellia128 and
+ Camellia256) share a single mask bit in the logic of
+ ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
+ kludge to work properly if AES128 is available and AES256 isn't
+ (or if Camellia128 is available and Camellia256 isn't).
+ [Victor Duchovni]
*) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
(within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
Improve header file function name parsing.
[Steve Henson]
+ *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
+ or CAPABILITY handshake as required by RFCs.
+ [Goetz Babin-Ebell]
+
Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
*) Introduce limits to prevent malicious keys being able to
draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
appear there.
- Also deactive the remaining ciphersuites from
+ Also deactivate the remaining ciphersuites from
draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
unofficial, and the ID has long expired.
[Bodo Moeller]
differing sizes.
[Richard Levitte]
- Changes between 0.9.7l and 0.9.7m [xx XXX xxxx]
+ Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
+
+ *) In the SSL/TLS server implementation, be strict about session ID
+ context matching (which matters if an application uses a single
+ external cache for different purposes). Previously,
+ out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
+ set. This did ensure strict client verification, but meant that,
+ with applications using a single external cache for quite
+ different requirements, clients could circumvent ciphersuite
+ restrictions for a given session ID context by starting a session
+ in a different context.
+ [Bodo Moeller]
+
+ Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
+
+ *) Cleanse PEM buffers before freeing them since they may contain
+ sensitive data.
+ [Benjamin Bennett <ben@psc.edu>]
+
+ *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
+ a ciphersuite string such as "DEFAULT:RSA" cannot enable
+ authentication-only ciphersuites.
+ [Bodo Moeller]
+
+ *) Since AES128 and AES256 share a single mask bit in the logic of
+ ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
+ kludge to work properly if AES128 is available and AES256 isn't.
+ [Victor Duchovni]
+
+ *) Expand security boundary to match 1.1.1 module.
+ [Steve Henson]
+
+ *) Remove redundant features: hash file source, editing of test vectors
+ modify fipsld to use external fips_premain.c signature.
+ [Steve Henson]
+
+ *) New perl script mkfipsscr.pl to create shell scripts or batch files to
+ run algorithm test programs.
+ [Steve Henson]
+
+ *) Make algorithm test programs more tolerant of whitespace.
+ [Steve Henson]
*) Have SSL/TLS server implementation tolerate "mismatched" record
protocol version while receiving ClientHello even if the
BN_mod_exp_mont_consttime() is the new exponentiation implementation,
and this is automatically used by BN_mod_exp_mont() if the new flag
- BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
+ BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
will use this BN flag for private exponents unless the flag
RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
projects / openssl.git / blobdiff