Changes between 0.9.4 and 0.9.5 [xx XXX 1999]
+ *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
+ handling. Most clients have the effective key size in bits equal to
+ the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
+ A few however don't do this and instead use the size of the decrypted key
+ to determine the RC2 key length and the AlgorithmIdentifier to determine
+ the effective key length. In this case the effective key lenth can still
+ be 40 bits but the key length can be 168 bits for example. This is fixed
+ by manually forcing an RC2 key into the EVP_PKEY structure because the
+ EVP code can't currently handle unusual RC2 key sizes: it always assumes
+ the key length and effective key length are equal.
+ [Steve Henson]
+
+ *) Add a bunch of functions that should simplify the creation of
+ X509_NAME structures. Now you should be able to do:
+ X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
+ and have it automatically work out the correct field type and fill in
+ the structures. The more adventurous can try:
+ X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
+ and it will (hopefully) work out the correct multibyte encoding.
+ [Steve Henson]
+
+ *) Change the 'req' utility to use the new field handling and multibyte
+ copy routines. Before the DN field creation was handled in an ad hoc
+ way in req, ca, and x509 which was rather broken and didn't support
+ BMPStrings or UTF8Strings. Since some software doesn't implement
+ BMPStrings or UTF8Strings yet, they can be enabled using the config file
+ using the dirstring_type option. See the new comment in the default
+ openssl.cnf for more info.
+ [Steve Henson]
+
+ *) Make crypto/rand/md_rand.c more robust:
+ - Assure unique random numbers after fork().
+ - Make sure that concurrent threads access the global counter and
+ md serializably so that we never lose entropy in them
+ or use exactly the same state in multiple threads.
+ Access to the large state is not always serializable because
+ the additional locking could be a performance killer, and
+ md should be large enough anyway.
+ [Bodo Moeller]
+
+ *) New file apps/app_rand.c with commonly needed functionality
+ for handling the random seed file.
+
+ Use the random seed file in some applications that previously did not:
+ ca,
+ dsaparam -genkey (which also ignored its `-rand' option),
+ s_client,
+ s_server,
+ x509 (when signing).
+ Except on systems with /dev/urandom, it is crucial to have a random
+ seed file at least for key creation, DSA signing, and for DH exchanges;
+ for RSA signatures we could do without one.
+
+ gendh and gendsa (unlike genrsa) used to read only the first byte
+ of each file listed in the `-rand' option. The function as previously
+ found in genrsa is now in app_rand.c and is used by all programs
+ that support `-rand'.
+ [Bodo Moeller]
+
+ *) In RAND_write_file, use mode 0600 for creating files;
+ don't just chmod when it may be too late.
+ [Bodo Moeller]
+
+ *) Report an error from X509_STORE_load_locations
+ when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
+ [Bill Perry]
+
+ *) New function ASN1_mbstring_copy() this copies a string in either
+ ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
+ into an ASN1_STRING type. A mask of permissible types is passed
+ and it chooses the "minimal" type to use or an error if not type
+ is suitable.
+ [Steve Henson]
+
+ *) Add function equivalents to the various macros in asn1.h. The old
+ macros are retained with an M_ prefix. Code inside the library can
+ use the M_ macros. External code (including the openssl utility)
+ should *NOT* in order to be "shared library friendly".
+ [Steve Henson]
+
+ *) Add various functions that can check a certificate's extensions
+ to see if it usable for various purposes such as SSL client,
+ server or S/MIME and CAs of these types. This is currently
+ VERY EXPERIMENTAL but will ultimately be used for certificate chain
+ verification. Also added a -purpose flag to x509 utility to
+ print out all the purposes.
+ [Steve Henson]
+
+ *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
+ functions.
+ [Steve Henson]
+
+ *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
+ for, obtain and decode and extension and obtain its critical flag.
+ This allows all the necessary extension code to be handled in a
+ single function call.
+ [Steve Henson]
+
+ *) RC4 tune-up featuring 30-40% performance improvement on most RISC
+ platforms. See crypto/rc4/rc4_enc.c for further details.
+ [Andy Polyakov]
+
+ *) New -noout option to asn1parse. This causes no output to be produced
+ its main use is when combined with -strparse and -out to extract data
+ from a file (which may not be in ASN.1 format).
+ [Steve Henson]
+
+ *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
+ when producing the local key id.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) New option -dhparam in s_server. This allows a DH parameter file to be
+ stated explicitly. If it is not stated then it tries the first server
+ certificate file. The previous behaviour hard coded the filename
+ "server.pem".
+ [Steve Henson]
+
+ *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
+ a public key to be input or output. For example:
+ openssl rsa -in key.pem -pubout -out pubkey.pem
+ Also added necessary DSA public key functions to handle this.
+ [Steve Henson]
+
+ *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
+ in the message. This was handled by allowing
+ X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
+ [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
+
+ *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
+ to the end of the strings whereas this didn't. This would cause problems
+ if strings read with d2i_ASN1_bytes() were later modified.
+ [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Fix for base64 decode bug. When a base64 bio reads only one line of
+ data and it contains EOF it will end up returning an error. This is
+ caused by input 46 bytes long. The cause is due to the way base64
+ BIOs find the start of base64 encoded data. They do this by trying a
+ trial decode on each line until they find one that works. When they
+ do a flag is set and it starts again knowing it can pass all the
+ data directly through the decoder. Unfortunately it doesn't reset
+ the context it uses. This means that if EOF is reached an attempt
+ is made to pass two EOFs through the context and this causes the
+ resulting error. This can also cause other problems as well. As is
+ usual with these problems it takes *ages* to find and the fix is
+ trivial: move one line.
+ [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
+
+ *) Ugly workaround to get s_client and s_server working under Windows. The
+ old code wouldn't work because it needed to select() on sockets and the
+ tty (for keypresses and to see if data could be written). Win32 only
+ supports select() on sockets so we select() with a 1s timeout on the
+ sockets and then see if any characters are waiting to be read, if none
+ are present then we retry, we also assume we can always write data to
+ the tty. This isn't nice because the code then blocks until we've
+ received a complete line of data and it is effectively polling the
+ keyboard at 1s intervals: however it's quite a bit better than not
+ working at all :-) A dedicated Windows application might handle this
+ with an event loop for example.
+ [Steve Henson]
+
*) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
will be called when RSA_sign() and RSA_verify() are used. This is useful
are otherwise ignored at present.
[Steve Henson]
- *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first data
- read consists of only the final block it would not decrypted because
+ *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
+ data read consists of only the final block it would not decrypted because
EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
A misplaced 'break' also meant the decrypted final block might not be
copied until the next read.
method only got called if p,q,dmp1,dmq1,iqmp components were present,
otherwise bn_mod_exp was called. In the case of hardware keys for example
no private key components need be present and it might store extra data
- in the RSA structure, which cannot be accessed from bn_mod_exp. By setting
- RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for private key
- operations.
+ in the RSA structure, which cannot be accessed from bn_mod_exp.
+ By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
+ private key operations.
[Steve Henson]
*) Added support for SPARC Linux.
The PEM[_ASN1]_{read,write}... functions and macros now take an
additional void * argument, which is just handed through whenever
the password callback is called.
- [Damien Miller <dmiller@ilogic.com.au>, with tiny changes by Bodo Moeller]
+ [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
New function SSL_CTX_set_default_passwd_cb_userdata.