[thirdparty/openssl.git] / CHANGES


 OpenSSL CHANGES
 _______________

 Changes between 0.9.5a and 0.9.6  [xx XXX 2000]

  *) New Configure entry and patches for compiling on QNX 4.
     [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]

  *) A demo state-machine implementation was sponsored by
     Nuron (http://www.nuron.com/) and is now available in
     demos/state_machine.
     [Ben Laurie]

  *) New options added to the 'dgst' utility for signature
     generation and verification.
     [Steve Henson]

  *) Unrecognized PKCS#7 content types are now handled via a
     catch all ASN1_TYPE structure. This allows unsupported
     types to be stored as a "blob" and an application can
     encode and decode it manually.
     [Steve Henson]

  *) Fix various signed/unsigned issues to make a_strex.c
     compile under VC++.
     [Oscar Jacobsson <oscar.jacobsson@celocom.com>]

  *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
     length if passed a buffer. ASN1_INTEGER_to_BN failed
     if passed a NULL BN and its argument was negative.
     [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]

  *) Modification to PKCS#7 encoding routines to output definite
     length encoding. Since currently the whole structures are in
     memory there's not real point in using indefinite length 
     constructed encoding. However if OpenSSL is compiled with
     the flag PKCS7_INDEFINITE_ENCODING the old form is used.
     [Steve Henson]

  *) Added BIO_vprintf() and BIO_vsnprintf().
     [Richard Levitte]

  *) Added more prefixes to parse for in the the strings written
     through a logging bio, to cover all the levels that are available
     through syslog.  The prefixes are now:

	PANIC, EMERG, EMR	=>	LOG_EMERG
	ALERT, ALR		=>	LOG_ALERT
	CRIT, CRI		=>	LOG_CRIT
	ERROR, ERR		=>	LOG_ERR
	WARNING, WARN, WAR	=>	LOG_WARNING
	NOTICE, NOTE, NOT	=>	LOG_NOTICE
	INFO, INF		=>	LOG_INFO
	DEBUG, DBG		=>	LOG_DEBUG

     and as before, if none of those prefixes are present at the
     beginning of the string, LOG_ERR is chosen.

     On Win32, the LOG_* levels are mapped according to this:

	LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR	=> EVENTLOG_ERROR_TYPE
	LOG_WARNING				=> EVENTLOG_WARNING_TYPE
	LOG_NOTICE, LOG_INFO, LOG_DEBUG		=> EVENTLOG_INFORMATION_TYPE

     [Richard Levitte]

  *) Made it possible to reconfigure with just the configuration
     argument "reconf" or "reconfigure".  The command line arguments
     are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
     and are retrieved from there when reconfiguring.
     [Richard Levitte]

  *) MD4 implemented.
     [Assar Westerlund <assar@sics.se>, Richard Levitte]

  *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
     [Richard Levitte]

  *) The obj_dat.pl script was messing up the sorting of object
     names. The reason was that it compared the quoted version
     of strings as a result "OCSP" > "OCSP Signing" because
     " > SPACE. Changed script to store unquoted versions of
     names and add quotes on output. It was also omitting some
     names from the lookup table if they were given a default
     value (that is if SN is missing it is given the same
     value as LN and vice versa), these are now added on the
     grounds that if an object has a name we should be able to
     look it up. Finally added warning output when duplicate
     short or long names are found.
     [Steve Henson]

  *) Changes needed for Tandem NSK.
     [Scott Uroff scott@xypro.com]

  *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
     RSA_padding_check_SSLv23(), special padding was never detected
     and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
     version rollback attacks was not effective.

     In s23_clnt.c, don't use special rollback-attack detection padding
     (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
     client; similarly, in s23_srvr.c, don't do the rollback check if
     SSL 2.0 is the only protocol enabled in the server.
     [Bodo Moeller]

  *) Make it possible to get hexdumps of unprintable data with 'openssl
     asn1parse'.  By implication, the functions ASN1_parse_dump() and
     BIO_dump_indent() are added.
     [Richard Levitte]

  *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
     these print out strings and name structures based on various
     flags including RFC2253 support and proper handling of
     multibyte characters. Added options to the 'x509' utility 
     to allow the various flags to be set.
     [Steve Henson]

  *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
     Also change the functions X509_cmp_current_time() and
     X509_gmtime_adj() work with an ASN1_TIME structure,
     this will enable certificates using GeneralizedTime in validity
     dates to be checked.
     [Steve Henson]

  *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
     negative public key encodings) on by default,
     NO_NEG_PUBKEY_BUG can be set to disable it.
     [Steve Henson]

  *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
     content octets. An i2c_ASN1_OBJECT is unnecessary because
     the encoding can be trivially obtained from the structure.
     [Steve Henson]

  *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
     not read locks (CRYPTO_r_[un]lock).
     [Bodo Moeller]

  *) A first attempt at creating official support for shared
     libraries through configuration.  I've kept it so the
     default is static libraries only, and the OpenSSL programs
     are always statically linked for now, but there are
     preparations for dynamic linking in place.
     This has been tested on Linux and True64.
     [Richard Levitte]

  *) Randomness polling function for Win9x, as described in:
     Peter Gutmann, Software Generation of Practically Strong
     Random Numbers.
Commit	Line	Data
651d0aff	1
f1c236f8	2	OpenSSL CHANGES
651d0aff RE	3	_______________
651d0aff RE	4
c90341a1 RL	5	Changes between 0.9.5a and 0.9.6 [xx XXX 2000]
c90341a1 RL	6
a545c6f6 BM	7	*) New Configure entry and patches for compiling on QNX 4.
	8	[Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
	9
7049ef5f BL	10	*) A demo state-machine implementation was sponsored by
	11	Nuron (http://www.nuron.com/) and is now available in
	12	demos/state_machine.
	13	[Ben Laurie]
	14
7df1c720 DSH	15	*) New options added to the 'dgst' utility for signature
	16	generation and verification.
	17	[Steve Henson]
	18
d096b524 DSH	19	*) Unrecognized PKCS#7 content types are now handled via a
	20	catch all ASN1_TYPE structure. This allows unsupported
	21	types to be stored as a "blob" and an application can
	22	encode and decode it manually.
	23	[Steve Henson]
	24
7df1c720	25	*) Fix various signed/unsigned issues to make a_strex.c
469938cb DSH	26	compile under VC++.
	27	[Oscar Jacobsson <oscar.jacobsson@celocom.com>]
	28
	29	*) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
	30	length if passed a buffer. ASN1_INTEGER_to_BN failed
	31	if passed a NULL BN and its argument was negative.
	32	[Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
	33
eaa28181 DSH	34	*) Modification to PKCS#7 encoding routines to output definite
	35	length encoding. Since currently the whole structures are in
	36	memory there's not real point in using indefinite length
	37	constructed encoding. However if OpenSSL is compiled with
	38	the flag PKCS7_INDEFINITE_ENCODING the old form is used.
	39	[Steve Henson]
	40
e6629837 RL	41	*) Added BIO_vprintf() and BIO_vsnprintf().
	42	[Richard Levitte]
	43
6fd5a047 RL	44	*) Added more prefixes to parse for in the the strings written
	45	through a logging bio, to cover all the levels that are available
	46	through syslog. The prefixes are now:
	47
	48	PANIC, EMERG, EMR => LOG_EMERG
	49	ALERT, ALR => LOG_ALERT
	50	CRIT, CRI => LOG_CRIT
	51	ERROR, ERR => LOG_ERR
	52	WARNING, WARN, WAR => LOG_WARNING
	53	NOTICE, NOTE, NOT => LOG_NOTICE
	54	INFO, INF => LOG_INFO
	55	DEBUG, DBG => LOG_DEBUG
	56
	57	and as before, if none of those prefixes are present at the
	58	beginning of the string, LOG_ERR is chosen.
	59
	60	On Win32, the LOG_* levels are mapped according to this:
	61
	62	LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
	63	LOG_WARNING => EVENTLOG_WARNING_TYPE
	64	LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
	65
	66	[Richard Levitte]
	67
368f8554 RL	68	*) Made it possible to reconfigure with just the configuration
	69	argument "reconf" or "reconfigure". The command line arguments
	70	are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
	71	and are retrieved from there when reconfiguring.
	72	[Richard Levitte]
	73
3009458e	74	*) MD4 implemented.
bb531a0a	75	[Assar Westerlund <assar@sics.se>, Richard Levitte]
3009458e	76
88364bc2 RL	77	*) Add the arguments -CAfile and -CApath to the pkcs12 utility.
	78	[Richard Levitte]
	79
d4fbe318 DSH	80	*) The obj_dat.pl script was messing up the sorting of object
	81	names. The reason was that it compared the quoted version
	82	of strings as a result "OCSP" > "OCSP Signing" because
	83	" > SPACE. Changed script to store unquoted versions of
	84	names and add quotes on output. It was also omitting some
	85	names from the lookup table if they were given a default
	86	value (that is if SN is missing it is given the same
	87	value as LN and vice versa), these are now added on the
	88	grounds that if an object has a name we should be able to
	89	look it up. Finally added warning output when duplicate
	90	short or long names are found.
	91	[Steve Henson]
	92
2d978cbd	93	*) Changes needed for Tandem NSK.
d4fbe318	94	[Scott Uroff scott@xypro.com]
2d978cbd	95
aa826d88 BM	96	*) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
	97	RSA_padding_check_SSLv23(), special padding was never detected
	98	and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
	99	version rollback attacks was not effective.
	100
37569e64 BM	101	In s23_clnt.c, don't use special rollback-attack detection padding
	102	(RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
	103	client; similarly, in s23_srvr.c, don't do the rollback check if
	104	SSL 2.0 is the only protocol enabled in the server.
	105	[Bodo Moeller]
	106
ca1e465f RL	107	*) Make it possible to get hexdumps of unprintable data with 'openssl
	108	asn1parse'. By implication, the functions ASN1_parse_dump() and
	109	BIO_dump_indent() are added.
	110	[Richard Levitte]
	111
a657546f DSH	112	*) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
	113	these print out strings and name structures based on various
	114	flags including RFC2253 support and proper handling of
	115	multibyte characters. Added options to the 'x509' utility
	116	to allow the various flags to be set.
	117	[Steve Henson]
	118
284ef5f3 DSH	119	*) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
	120	Also change the functions X509_cmp_current_time() and
	121	X509_gmtime_adj() work with an ASN1_TIME structure,
	122	this will enable certificates using GeneralizedTime in validity
	123	dates to be checked.
	124	[Steve Henson]
	125
	126	*) Make the NEG_PUBKEY_BUG code (which tolerates invalid
	127	negative public key encodings) on by default,
	128	NO_NEG_PUBKEY_BUG can be set to disable it.
	129	[Steve Henson]
	130
	131	*) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
	132	content octets. An i2c_ASN1_OBJECT is unnecessary because
	133	the encoding can be trivially obtained from the structure.
	134	[Steve Henson]
	135
fa729135 BM	136	*) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
	137	not read locks (CRYPTO_r_[un]lock).
	138	[Bodo Moeller]
	139
b436a982 RL	140	*) A first attempt at creating official support for shared
	141	libraries through configuration. I've kept it so the
	142	default is static libraries only, and the OpenSSL programs
	143	are always statically linked for now, but there are
	144	preparations for dynamic linking in place.
	145	This has been tested on Linux and True64.
	146	[Richard Levitte]
	147
c0722725 UM	148	*) Randomness polling function for Win9x, as described in:
	149	Peter Gutmann, Software Generation of Practically Strong
	150	Random Numbers.
	151