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Paul Bakker 2011-01-05 14:48:42 +00:00
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620
ChangeLog
View file

@ -1,310 +1,310 @@
PolarSSL ChangeLog
= Version 0.14.0 released on 2010-08-16
Features
* Added support for SSL_EDH_RSA_AES_128_SHA and
SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
* Added compile-time and run-time version information
* Expanded ssl_client2 arguments for more flexibility
* Added support for TLS v1.1
Changes
* Made Makefile cleaner
* Removed dependency on rand() in rsa_pkcs1_encrypt().
Now using random fuction provided to function and
changed the prototype of rsa_pkcs1_encrypt(),
rsa_init() and rsa_gen_key().
* Some SSL defines were renamed in order to avoid
future confusion
Bug fixes
* Fixed CMake out of source build for tests (found by
kkert)
* rsa_check_private() now supports PKCS1v2 keys as well
* Fixed deadlock in rsa_pkcs1_encrypt() on failing random
generator
= Version 0.13.1 released on 2010-03-24
Bug fixes
* Fixed Makefile in library that was mistakenly merged
* Added missing const string fixes
= Version 0.13.0 released on 2010-03-21
Features
* Added option parsing for host and port selection to
ssl_client2
* Added support for GeneralizedTime in X509 parsing
* Added cert_app program to allow easy reading and
printing of X509 certificates from file or SSL
connection.
Changes
* Added const correctness for main code base
* X509 signature algorithm determination is now
in a function to allow easy future expansion
* Changed symmetric cipher functions to
identical interface (returning int result values)
* Changed ARC4 to use seperate input/output buffer
* Added reset function for HMAC context as speed-up
for specific use-cases
Bug fixes
* Fixed bug resulting in failure to send the last
certificate in the chain in ssl_write_certificate() and
ssl_write_certificate_request() (found by fatbob)
* Added small fixes for compiler warnings on a Mac
(found by Frank de Brabander)
* Fixed algorithmic bug in mpi_is_prime() (found by
Smbat Tonoyan)
= Version 0.12.1 released on 2009-10-04
Changes
* Coverage test definitions now support 'depends_on'
tagging system.
* Tests requiring specific hashing algorithms now honor
the defines.
Bug fixes
* Changed typo in #ifdef in x509parse.c (found
by Eduardo)
= Version 0.12.0 released on 2009-07-28
Features
* Added CMake makefiles as alternative to regular Makefiles.
* Added preliminary Code Coverage tests for AES, ARC4,
Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
and X509parse.
Changes
* Error codes are not (necessarily) negative. Keep
this is mind when checking for errors.
* RSA_RAW renamed to SIG_RSA_RAW for consistency.
* Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
* Changed interface for AES and Camellia setkey functions
to indicate invalid key lengths.
Bug fixes
* Fixed include location of endian.h on FreeBSD (found by
Gabriel)
* Fixed include location of endian.h and name clash on
Apples (found by Martin van Hensbergen)
* Fixed HMAC-MD2 by modifying md2_starts(), so that the
required HMAC ipad and opad variables are not cleared.
(found by code coverage tests)
* Prevented use of long long in bignum if
POLARSSL_HAVE_LONGLONG not defined (found by Giles
Bathgate).
* Fixed incorrect handling of negative strings in
mpi_read_string() (found by code coverage tests).
* Fixed segfault on handling empty rsa_context in
rsa_check_pubkey() and rsa_check_privkey() (found by
code coverage tests).
* Fixed incorrect handling of one single negative input
value in mpi_add_abs() (found by code coverage tests).
* Fixed incorrect handling of negative first input
value in mpi_sub_abs() (found by code coverage tests).
* Fixed incorrect handling of negative first input
value in mpi_mod_mpi() and mpi_mod_int(). Resulting
change also affects mpi_write_string() (found by code
coverage tests).
* Corrected is_prime() results for 0, 1 and 2 (found by
code coverage tests).
* Fixed Camellia and XTEA for 64-bit Windows systems.
= Version 0.11.1 released on 2009-05-17
* Fixed missing functionality for SHA-224, SHA-256, SHA384,
SHA-512 in rsa_pkcs1_sign()
= Version 0.11.0 released on 2009-05-03
* Fixed a bug in mpi_gcd() so that it also works when both
input numbers are even and added testcases to check
(found by Pierre Habouzit).
* Added support for SHA-224, SHA-256, SHA-384 and SHA-512
one way hash functions with the PKCS#1 v1.5 signing and
verification.
* Fixed minor bug regarding mpi_gcd located within the
POLARSSL_GENPRIME block.
* Fixed minor memory leak in x509parse_crt() and added better
handling of 'full' certificate chains (found by Mathias
Olsson).
* Centralized file opening and reading for x509 files into
load_file()
* Made definition of net_htons() endian-clean for big endian
systems (Found by Gernot).
* Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
padlock and timing code.
* Fixed an off-by-one buffer allocation in ssl_set_hostname()
responsible for crashes and unwanted behaviour.
* Added support for Certificate Revocation List (CRL) parsing.
* Added support for CRL revocation to x509parse_verify() and
SSL/TLS code.
* Fixed compatibility of XTEA and Camellia on a 64-bit system
(found by Felix von Leitner).
= Version 0.10.0 released on 2009-01-12
* Migrated XySSL to PolarSSL
* Added XTEA symmetric cipher
* Added Camellia symmetric cipher
* Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
* Fixed dangerous bug that can cause a heap overflow in
rsa_pkcs1_decrypt (found by Christophe Devine)
================================================================
XySSL ChangeLog
= Version 0.9 released on 2008-03-16
* Added support for ciphersuite: SSL_RSA_AES_128_SHA
* Enabled support for large files by default in aescrypt2.c
* Preliminary openssl wrapper contributed by David Barrett
* Fixed a bug in ssl_write() that caused the same payload to
be sent twice in non-blocking mode when send returns EAGAIN
* Fixed ssl_parse_client_hello(): session id and challenge must
not be swapped in the SSLv2 ClientHello (found by Greg Robson)
* Added user-defined callback debug function (Krystian Kolodziej)
* Before freeing a certificate, properly zero out all cert. data
* Fixed the "mode" parameter so that encryption/decryption are
not swapped on PadLock; also fixed compilation on older versions
of gcc (bug reported by David Barrett)
* Correctly handle the case in padlock_xcryptcbc() when input or
ouput data is non-aligned by falling back to the software
implementation, as VIA Nehemiah cannot handle non-aligned buffers
* Fixed a memory leak in x509parse_crt() which was reported by Greg
Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
Matthew Page who reported several bugs
* Fixed x509_get_ext() to accept some rare certificates which have
an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
* Added support on the client side for the TLS "hostname" extension
(patch contributed by David Patino)
* Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
string is passed as the CN (bug reported by spoofy)
* Added an option to enable/disable the BN assembly code
* Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
* Disabled obsolete hash functions by default (MD2, MD4); updated
selftest and benchmark to not test ciphers that have been disabled
* Updated x509parse_cert_info() to correctly display byte 0 of the
serial number, setup correct server port in the ssl client example
* Fixed a critical denial-of-service with X.509 cert. verification:
peer may cause xyssl to loop indefinitely by sending a certificate
for which the RSA signature check fails (bug reported by Benoit)
* Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
* Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
* Modified ssl_parse_client_key_exchange() to protect against
Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
* Updated rsa_gen_key() so that ctx->N is always nbits in size
* Fixed assembly PPC compilation errors on Mac OS X, thanks to
David Barrett and Dusan Semen
= Version 0.8 released on 2007-10-20
* Modified the HMAC functions to handle keys larger
than 64 bytes, thanks to Stephane Desneux and gary ng
* Fixed ssl_read_record() to properly update the handshake
message digests, which fixes IE6/IE7 client authentication
* Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
* Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
* Added user-defined callbacks for handling I/O and sessions
* Added lots of debugging output in the SSL/TLS functions
* Added preliminary X.509 cert. writing by Pascal Vizeli
* Added preliminary support for the VIA PadLock routines
* Added AES-CFB mode of operation, contributed by chmike
* Added an SSL/TLS stress testing program (ssl_test.c)
* Updated the RSA PKCS#1 code to allow choosing between
RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
* Updated ssl_read() to skip 0-length records from OpenSSL
* Fixed the make install target to comply with *BSD make
* Fixed a bug in mpi_read_binary() on 64-bit platforms
* mpi_is_prime() speedups, thanks to Kevin McLaughlin
* Fixed a long standing memory leak in mpi_is_prime()
* Replaced realloc with malloc in mpi_grow(), and set
the sign of zero as positive in mpi_init() (reported
by Jonathan M. McCune)
= Version 0.7 released on 2007-07-07
* Added support for the MicroBlaze soft-core processor
* Fixed a bug in ssl_tls.c which sometimes prevented SSL
connections from being established with non-blocking I/O
* Fixed a couple bugs in the VS6 and UNIX Makefiles
* Fixed the "PIC register ebx clobbered in asm" bug
* Added HMAC starts/update/finish support functions
* Added the SHA-224, SHA-384 and SHA-512 hash functions
* Fixed the net_set_*block routines, thanks to Andreas
* Added a few demonstration programs: md5sum, sha1sum,
dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
* Added new bignum import and export helper functions
* Rewrote README.txt in program/ssl/ca to better explain
how to create a test PKI
= Version 0.6 released on 2007-04-01
* Ciphers used in SSL/TLS can now be disabled at compile
time, to reduce the memory footprint on embedded systems
* Added multiply assembly code for the TriCore and modified
havege_struct for this processor, thanks to David Patiño
* Added multiply assembly code for 64-bit PowerPCs,
thanks to Peking University and the OSU Open Source Lab
* Added experimental support of Quantum Cryptography
* Added support for autoconf, contributed by Arnaud Cornet
* Fixed "long long" compilation issues on IA-64 and PPC64
* Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
was not being correctly defined on ARM and MIPS
= Version 0.5 released on 2007-03-01
* Added multiply assembly code for SPARC and Alpha
* Added (beta) support for non-blocking I/O operations
* Implemented session resuming and client authentication
* Fixed some portability issues on WinCE, MINIX 3, Plan9
(thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
* Improved the performance of the EDH key exchange
* Fixed a bug that caused valid packets with a payload
size of 16384 bytes to be rejected
= Version 0.4 released on 2007-02-01
* Added support for Ephemeral Diffie-Hellman key exchange
* Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
* Various improvement to the modular exponentiation code
* Rewrote the headers to generate the API docs with doxygen
* Fixed a bug in ssl_encrypt_buf (incorrect padding was
generated) and in ssl_parse_client_hello (max. client
version was not properly set), thanks to Didier Rebeix
* Fixed another bug in ssl_parse_client_hello: clients with
cipherlists larger than 96 bytes were incorrectly rejected
* Fixed a couple memory leak in x509_read.c
= Version 0.3 released on 2007-01-01
* Added server-side SSLv3 and TLSv1.0 support
* Multiple fixes to enhance the compatibility with g++,
thanks to Xosé Antón Otero Ferreira
* Fixed a bug in the CBC code, thanks to dowst; also,
the bignum code is no longer dependant on long long
* Updated rsa_pkcs1_sign to handle arbitrary large inputs
* Updated timing.c for improved compatibility with i386
and 486 processors, thanks to Arnaud Cornet
= Version 0.2 released on 2006-12-01
* Updated timing.c to support ARM and MIPS arch
* Updated the MPI code to support 8086 on MSVC 1.5
* Added the copyright notice at the top of havege.h
* Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
* Fixed a bug reported by Adrian Rüegsegger in x509_read_key
* Fixed a bug reported by Torsten Lauter in ssl_read_record
* Fixed a bug in rsa_check_privkey that would wrongly cause
valid RSA keys to be dismissed (thanks to oldwolf)
* Fixed a bug in mpi_is_prime that caused some primes to fail
the Miller-Rabin primality test
I'd also like to thank Younès Hafri for the CRUX linux port,
Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
who maintains the Debian package :-)
= Version 0.1 released on 2006-11-01
PolarSSL ChangeLog
= Version 0.14.0 released on 2010-08-16
Features
* Added support for SSL_EDH_RSA_AES_128_SHA and
SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
* Added compile-time and run-time version information
* Expanded ssl_client2 arguments for more flexibility
* Added support for TLS v1.1
Changes
* Made Makefile cleaner
* Removed dependency on rand() in rsa_pkcs1_encrypt().
Now using random fuction provided to function and
changed the prototype of rsa_pkcs1_encrypt(),
rsa_init() and rsa_gen_key().
* Some SSL defines were renamed in order to avoid
future confusion
Bug fixes
* Fixed CMake out of source build for tests (found by
kkert)
* rsa_check_private() now supports PKCS1v2 keys as well
* Fixed deadlock in rsa_pkcs1_encrypt() on failing random
generator
= Version 0.13.1 released on 2010-03-24
Bug fixes
* Fixed Makefile in library that was mistakenly merged
* Added missing const string fixes
= Version 0.13.0 released on 2010-03-21
Features
* Added option parsing for host and port selection to
ssl_client2
* Added support for GeneralizedTime in X509 parsing
* Added cert_app program to allow easy reading and
printing of X509 certificates from file or SSL
connection.
Changes
* Added const correctness for main code base
* X509 signature algorithm determination is now
in a function to allow easy future expansion
* Changed symmetric cipher functions to
identical interface (returning int result values)
* Changed ARC4 to use seperate input/output buffer
* Added reset function for HMAC context as speed-up
for specific use-cases
Bug fixes
* Fixed bug resulting in failure to send the last
certificate in the chain in ssl_write_certificate() and
ssl_write_certificate_request() (found by fatbob)
* Added small fixes for compiler warnings on a Mac
(found by Frank de Brabander)
* Fixed algorithmic bug in mpi_is_prime() (found by
Smbat Tonoyan)
= Version 0.12.1 released on 2009-10-04
Changes
* Coverage test definitions now support 'depends_on'
tagging system.
* Tests requiring specific hashing algorithms now honor
the defines.
Bug fixes
* Changed typo in #ifdef in x509parse.c (found
by Eduardo)
= Version 0.12.0 released on 2009-07-28
Features
* Added CMake makefiles as alternative to regular Makefiles.
* Added preliminary Code Coverage tests for AES, ARC4,
Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
and X509parse.
Changes
* Error codes are not (necessarily) negative. Keep
this is mind when checking for errors.
* RSA_RAW renamed to SIG_RSA_RAW for consistency.
* Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
* Changed interface for AES and Camellia setkey functions
to indicate invalid key lengths.
Bug fixes
* Fixed include location of endian.h on FreeBSD (found by
Gabriel)
* Fixed include location of endian.h and name clash on
Apples (found by Martin van Hensbergen)
* Fixed HMAC-MD2 by modifying md2_starts(), so that the
required HMAC ipad and opad variables are not cleared.
(found by code coverage tests)
* Prevented use of long long in bignum if
POLARSSL_HAVE_LONGLONG not defined (found by Giles
Bathgate).
* Fixed incorrect handling of negative strings in
mpi_read_string() (found by code coverage tests).
* Fixed segfault on handling empty rsa_context in
rsa_check_pubkey() and rsa_check_privkey() (found by
code coverage tests).
* Fixed incorrect handling of one single negative input
value in mpi_add_abs() (found by code coverage tests).
* Fixed incorrect handling of negative first input
value in mpi_sub_abs() (found by code coverage tests).
* Fixed incorrect handling of negative first input
value in mpi_mod_mpi() and mpi_mod_int(). Resulting
change also affects mpi_write_string() (found by code
coverage tests).
* Corrected is_prime() results for 0, 1 and 2 (found by
code coverage tests).
* Fixed Camellia and XTEA for 64-bit Windows systems.
= Version 0.11.1 released on 2009-05-17
* Fixed missing functionality for SHA-224, SHA-256, SHA384,
SHA-512 in rsa_pkcs1_sign()
= Version 0.11.0 released on 2009-05-03
* Fixed a bug in mpi_gcd() so that it also works when both
input numbers are even and added testcases to check
(found by Pierre Habouzit).
* Added support for SHA-224, SHA-256, SHA-384 and SHA-512
one way hash functions with the PKCS#1 v1.5 signing and
verification.
* Fixed minor bug regarding mpi_gcd located within the
POLARSSL_GENPRIME block.
* Fixed minor memory leak in x509parse_crt() and added better
handling of 'full' certificate chains (found by Mathias
Olsson).
* Centralized file opening and reading for x509 files into
load_file()
* Made definition of net_htons() endian-clean for big endian
systems (Found by Gernot).
* Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
padlock and timing code.
* Fixed an off-by-one buffer allocation in ssl_set_hostname()
responsible for crashes and unwanted behaviour.
* Added support for Certificate Revocation List (CRL) parsing.
* Added support for CRL revocation to x509parse_verify() and
SSL/TLS code.
* Fixed compatibility of XTEA and Camellia on a 64-bit system
(found by Felix von Leitner).
= Version 0.10.0 released on 2009-01-12
* Migrated XySSL to PolarSSL
* Added XTEA symmetric cipher
* Added Camellia symmetric cipher
* Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
* Fixed dangerous bug that can cause a heap overflow in
rsa_pkcs1_decrypt (found by Christophe Devine)
================================================================
XySSL ChangeLog
= Version 0.9 released on 2008-03-16
* Added support for ciphersuite: SSL_RSA_AES_128_SHA
* Enabled support for large files by default in aescrypt2.c
* Preliminary openssl wrapper contributed by David Barrett
* Fixed a bug in ssl_write() that caused the same payload to
be sent twice in non-blocking mode when send returns EAGAIN
* Fixed ssl_parse_client_hello(): session id and challenge must
not be swapped in the SSLv2 ClientHello (found by Greg Robson)
* Added user-defined callback debug function (Krystian Kolodziej)
* Before freeing a certificate, properly zero out all cert. data
* Fixed the "mode" parameter so that encryption/decryption are
not swapped on PadLock; also fixed compilation on older versions
of gcc (bug reported by David Barrett)
* Correctly handle the case in padlock_xcryptcbc() when input or
ouput data is non-aligned by falling back to the software
implementation, as VIA Nehemiah cannot handle non-aligned buffers
* Fixed a memory leak in x509parse_crt() which was reported by Greg
Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
Matthew Page who reported several bugs
* Fixed x509_get_ext() to accept some rare certificates which have
an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
* Added support on the client side for the TLS "hostname" extension
(patch contributed by David Patino)
* Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
string is passed as the CN (bug reported by spoofy)
* Added an option to enable/disable the BN assembly code
* Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
* Disabled obsolete hash functions by default (MD2, MD4); updated
selftest and benchmark to not test ciphers that have been disabled
* Updated x509parse_cert_info() to correctly display byte 0 of the
serial number, setup correct server port in the ssl client example
* Fixed a critical denial-of-service with X.509 cert. verification:
peer may cause xyssl to loop indefinitely by sending a certificate
for which the RSA signature check fails (bug reported by Benoit)
* Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
* Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
* Modified ssl_parse_client_key_exchange() to protect against
Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
* Updated rsa_gen_key() so that ctx->N is always nbits in size
* Fixed assembly PPC compilation errors on Mac OS X, thanks to
David Barrett and Dusan Semen
= Version 0.8 released on 2007-10-20
* Modified the HMAC functions to handle keys larger
than 64 bytes, thanks to Stephane Desneux and gary ng
* Fixed ssl_read_record() to properly update the handshake
message digests, which fixes IE6/IE7 client authentication
* Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
* Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
* Added user-defined callbacks for handling I/O and sessions
* Added lots of debugging output in the SSL/TLS functions
* Added preliminary X.509 cert. writing by Pascal Vizeli
* Added preliminary support for the VIA PadLock routines
* Added AES-CFB mode of operation, contributed by chmike
* Added an SSL/TLS stress testing program (ssl_test.c)
* Updated the RSA PKCS#1 code to allow choosing between
RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
* Updated ssl_read() to skip 0-length records from OpenSSL
* Fixed the make install target to comply with *BSD make
* Fixed a bug in mpi_read_binary() on 64-bit platforms
* mpi_is_prime() speedups, thanks to Kevin McLaughlin
* Fixed a long standing memory leak in mpi_is_prime()
* Replaced realloc with malloc in mpi_grow(), and set
the sign of zero as positive in mpi_init() (reported
by Jonathan M. McCune)
= Version 0.7 released on 2007-07-07
* Added support for the MicroBlaze soft-core processor
* Fixed a bug in ssl_tls.c which sometimes prevented SSL
connections from being established with non-blocking I/O
* Fixed a couple bugs in the VS6 and UNIX Makefiles
* Fixed the "PIC register ebx clobbered in asm" bug
* Added HMAC starts/update/finish support functions
* Added the SHA-224, SHA-384 and SHA-512 hash functions
* Fixed the net_set_*block routines, thanks to Andreas
* Added a few demonstration programs: md5sum, sha1sum,
dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
* Added new bignum import and export helper functions
* Rewrote README.txt in program/ssl/ca to better explain
how to create a test PKI
= Version 0.6 released on 2007-04-01
* Ciphers used in SSL/TLS can now be disabled at compile
time, to reduce the memory footprint on embedded systems
* Added multiply assembly code for the TriCore and modified
havege_struct for this processor, thanks to David Patiño
* Added multiply assembly code for 64-bit PowerPCs,
thanks to Peking University and the OSU Open Source Lab
* Added experimental support of Quantum Cryptography
* Added support for autoconf, contributed by Arnaud Cornet
* Fixed "long long" compilation issues on IA-64 and PPC64
* Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
was not being correctly defined on ARM and MIPS
= Version 0.5 released on 2007-03-01
* Added multiply assembly code for SPARC and Alpha
* Added (beta) support for non-blocking I/O operations
* Implemented session resuming and client authentication
* Fixed some portability issues on WinCE, MINIX 3, Plan9
(thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
* Improved the performance of the EDH key exchange
* Fixed a bug that caused valid packets with a payload
size of 16384 bytes to be rejected
= Version 0.4 released on 2007-02-01
* Added support for Ephemeral Diffie-Hellman key exchange
* Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
* Various improvement to the modular exponentiation code
* Rewrote the headers to generate the API docs with doxygen
* Fixed a bug in ssl_encrypt_buf (incorrect padding was
generated) and in ssl_parse_client_hello (max. client
version was not properly set), thanks to Didier Rebeix
* Fixed another bug in ssl_parse_client_hello: clients with
cipherlists larger than 96 bytes were incorrectly rejected
* Fixed a couple memory leak in x509_read.c
= Version 0.3 released on 2007-01-01
* Added server-side SSLv3 and TLSv1.0 support
* Multiple fixes to enhance the compatibility with g++,
thanks to Xosé Antón Otero Ferreira
* Fixed a bug in the CBC code, thanks to dowst; also,
the bignum code is no longer dependant on long long
* Updated rsa_pkcs1_sign to handle arbitrary large inputs
* Updated timing.c for improved compatibility with i386
and 486 processors, thanks to Arnaud Cornet
= Version 0.2 released on 2006-12-01
* Updated timing.c to support ARM and MIPS arch
* Updated the MPI code to support 8086 on MSVC 1.5
* Added the copyright notice at the top of havege.h
* Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
* Fixed a bug reported by Adrian Rüegsegger in x509_read_key
* Fixed a bug reported by Torsten Lauter in ssl_read_record
* Fixed a bug in rsa_check_privkey that would wrongly cause
valid RSA keys to be dismissed (thanks to oldwolf)
* Fixed a bug in mpi_is_prime that caused some primes to fail
the Miller-Rabin primality test
I'd also like to thank Younès Hafri for the CRUX linux port,
Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
who maintains the Debian package :-)
= Version 0.1 released on 2006-11-01

678
LICENSE
View file

@ -1,339 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.