From 99ed6788b27c6bfa26ca3c5b38c4050e6de2eecd Mon Sep 17 00:00:00 2001 From: Paul Bakker Date: Wed, 5 Jan 2011 14:48:42 +0000 Subject: [PATCH] - Changed line endings and encodings to unix and utf-8 --- ChangeLog | 620 ++++++++++++++++++++++++------------------------- LICENSE | 678 +++++++++++++++++++++++++++--------------------------- 2 files changed, 649 insertions(+), 649 deletions(-) diff --git a/ChangeLog b/ChangeLog index 240e2fe71..d061dba4a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -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 + diff --git a/LICENSE b/LICENSE index 82fa1daad..d511905c1 100644 --- a/LICENSE +++ b/LICENSE @@ -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. - - - Copyright (C) - - 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. - - , 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. + + + Copyright (C) + + 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. + + , 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.