2002-10-21 Niels M�ller <nisse@lysator.liu.se> * examples/sexp-conv.c: New sexp conversion program. 2002-10-21 Niels M�ller <niels@s3.kth.se> * Makefile.am (libnettle_a_SOURCES): Added sexp-format-transport.c. * sexp-transport.c (sexp_transport_iterator_first): New file and function. * sexp.h (sexp_transport_iterator_first): Added protoype. * sexp.c (sexp_iterator_next): Abort if iterator type is boogus. 2002-10-19 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/testutils.c (test_armor): Updated to new armor conventions. * testsuite/base64-test.c (test_main): Test BASE64_ENCODE_LENGTH and BASE64_DECODE_LENGTH. Updated test of base64_encode_raw (used to be base64_encode). * base64.h (BASE64_ENCODE_LENGTH, BASE64_DECODE_LENGTH): Fixed and documented macros. * base64-meta.c (base64_encode_length, base64_decode_length): New functions, corresponding to the macros with the same name. * Makefile.am (libnettle_a_SOURCES): base64.c replaced by base64-encode.c and base64-decode.c. * pgp-encode.c (pgp_armor): Use new base64 conventions. * nettle-meta.h: Updated nettle_armor definitions. * base64.h: Major reorganization. * base64.c: Deleted file, contents moved to base64-encode.c or base64-decode.c. * base64-encode.c: New file. New supporting both encode-at-once and streamed operation. * base64-decode.c: New file. 2002-10-09 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/Makefile.am (TS_PROGS): Added dsa-keygen-test. * dsa-keygen.c: Call the progress callback only if it's non-NULL. * Makefile.am (libnettle_a_SOURCES): Added bignum-random.c and dsa-keygen.c. * testsuite/testutils.c (test_dsa_key): New function to sanity check a dsa keypair. * testsuite/dsa-test.c (test_main): Call dsa_test_key. * testsuite/dsa-keygen-test.c: New test case. * dsa.h (DSA_MINIMUM_BITS): New constant. * bignum.h (nettle_mpz_random, nettle_mpz_random_size): Added prototypes. * dsa-keygen.c: New file. * bignum-random.c: New file. (nettle_mpz_random): New function, moved from... * dsa-sign.c (nettle_mpz_random): ... here. Also changed argument ordering and updated callers. * bignum-random.c: (nettle_mpz_random_size): New function, renamed and moved here from... * rsa-keygen.c (bignum_random_size): ... here. Updated all callers. * testsuite/testutils.c (test_dsa): Needs both public and private key as arguments. * testsuite/dsa-test.c (test_main): Updated to changes of the private key struct. * testsuite/Makefile.am (TS_PROGS): Added dsa-test. * rsa-decrypt.c (rsa_decrypt): Constification. * rsa-encrypt.c (rsa_encrypt): Likewise. * rsa.c (rsa_compute_root): Likewise. * rsa_md5.c (rsa_md5_sign): Likewise. (rsa_md5_verify): Likewise. * rsa_sha1.c (rsa_sha1_sign): Likewise. (rsa_sha1_verify): Likewise. * dsa-verify.c (dsa_verify): Use const for the public key argument. * dsa-sign.c (dsa_sign): Needs the public key as argument, in addition to the private key. Use const. * dsa.h (struct dsa_private_key): Don't include the public information here. * dsa.c (dsa_private_key_init, dsa_private_key_clear): Updated to new struct dsa_private_key. * dsa-sign.c (dsa_sign): Bugfix, added missing mpz_init call. * Makefile.am (libnettle_a_SOURCES): Added dsa files. (libnettleinclude_HEADERS): Added dsa.h. * testsuite/testutils.c (test_dsa): New function. * testsuite/dsa-test.c: New test. * dsa.h, dsa.c, dsa-sign.c, dsa-verify.c: New files. * nettle-meta.h: Moved the nettle_random_func and nettle_progress_func typedefs here... * rsa.h: ... from here. 2002-10-07 Niels M�ller <nisse@cuckoo.hack.org> * sexp.h (enum sexp_type): Deleted SEXP_START. * sexp.c (sexp_iterator_parse): New function, similar to the old sexp_iterator_next, but independent of the previous value of the iterator->type. (sexp_iterator_first): Use sexp_iterator_parse. (sexp_iterator_next): Likewise. (sexp_iterator_enter_list): Use sexp_iterator_parse. SEXP_START not needed anymore. (sexp_iterator_exit_list): Likewise. 2002-10-06 Niels M�ller <nisse@cuckoo.hack.org> * sexp2rsa.c (get_value): No need to call sexp_iterator_next anymore. * sexp.c (sexp_iterator_assoc): Advance the iterator to the element after a matching tag, before recording it. * testsuite/sexp-test.c (test_main): Updated test. * testsuite/sexp-test.c (test_main): No need to call sexp_iterator_next after sexp_iterator_exit_list. * sexp2rsa.c (rsa_keypair_from_sexp): No need to call sexp_iterator_next anymore. * sexp.c (sexp_iterator_next): Updated to new sexp_iterator_exit_list. (sexp_iterator_exit_list): Return with iterator pointing to the element after the list. (sexp_iterator_check_type): Call sexp_iterator_next before returning. (sexp_iterator_check_types): Likewise. (sexp_iterator_assoc): Rearranged calls of sexp_iterator_next. * sexp.c (sexp_iterator_enter_list): Call sexp_iterator_next to get to the first element of the list. Updated callers. * base64.c (base64_encode_group): New function, used by openpgp armoring code. * Makefile.am: Added openpgp files. * sexp2rsa.c (rsa_keypair_from_sexp): Use sexp_iterator_first. * testsuite/sexp-test.c (test_main): Likewise. * sexp.c (sexp_iterator_init): Made this function static. (sexp_iterator_first): New, friendlier, initialization function. * pgp-encode.c: New file. Functions for writing openpgp data packets. * pgp.h: New file, with pgp related declarations. * rsa2openpgp.c (rsa_keypair_to_openpgp): New file, new function. 2002-10-04 Niels M�ller <niels@s3.kth.se> * examples/rsa-keygen.c: Use malloc, instead of asprintf. 2002-10-03 Niels M�ller <nisse@cuckoo.hack.org> * Released nettle-1.6. * NEWS: Note the aes api change. * examples/Makefile.am (EXTRA_DIST): Distribute setup-env and teardown-env. 2002-10-02 Niels M�ller <nisse@cuckoo.hack.org> * examples/rsa-keygen.c (main): Comment on the lax security of the private key file. * index.html: Added link to mailing list. 2002-10-02 Niels M�ller <niels@s3.kth.se> * Makefile.am: Fixed assembler rules, and shared libraries. * configure.ac: Fixed the enable-shared option. 2002-10-01 Niels M�ller <nisse@cuckoo.hack.org> * configure.ac: New option --enable-shared, and a first attempt at building a shared library (*without* using libtool). * Makefile.am: A first attempt at rules for building a shared libnettle.so. 2002-10-01 Niels M�ller <niels@s3.kth.se> * examples/run-tests (test_program): Use basename. * examples/teardown-env: Delete some more files. * examples/run-tests (test_program): Strip directory part of displayed name. * examples/Makefile.am (TS_PROGS): New variable. Run tests. * examples/io.c (read_file): Bug fix, used to overwrite pointer. * examples/rsa-keygen.c (main): Bug fix, private key wasn't written properly. * testsuite/Makefile.am: Some cleanup of make check. * examples/setup-env, examples/teardown-env: Test environment scripts. * examples/rsa-verify-test, examples/rsa-sign-test: New test cases. * examples/run-tests: New file (copied from lsh testsuite). * examples/Makefile.am: Use EXTRA_PROGRAMS and @RSA_EXAMPLES@. * examples/rsa-sign.c: No need to include config.h. Use werror instead of fprintf. * examples/rsa-verify.c: Likewise. * examples/rsa-keygen.c: Likewise. * examples/io.h: Forward declare struct rsa_public_key and struct rsa_private_key, to avoid dependences on config.h. * configure.ac (RSA_EXAMPLES): New substituted variable, controlling which example programs to build. * examples/rsa-verify.c: New example program. * examples/rsa-keygen.c: Use functions from io.c. * examples/rsa-sign.c: Likewise. * examples/Makefile.am (noinst_PROGRAMS): Added rsa-verify. (LDADD): Added io.o. * configure.ac: New define WITH_PUBLIC_KEY, and new configure flag --disable-public-key. Updated rsa-files to check for that, rather than for HAVE_LIBGMP. * examples/io.c, examples/io.c: New files. Miscellaneous functions used by the example programs. * base64.h (BASE64_DECODE_LENGTH): Comment fix. 2002-09-30 Niels M�ller <nisse@cuckoo.hack.org> * sexp2rsa.c (rsa_keypair_from_sexp): Bugfix: Call rsa_prepare_public_key and rsa_prepare_private_key. * examples/Makefile.am (noinst_PROGRAMS): Added rsa-sign. * examples/rsa-sign.c: New example program. * testsuite/base64-test.c (test_main): Test encoding and decoding in place. * base64.c (base64_encode): Encode from the end of the data towards the start, in order to support overlapping areas. (base64_encode): Broke out some common code from the switch.. 2002-09-30 Niels M�ller <niels@s3.kth.se> * sexp_format.c (sexp_format): Don't mix code and declarations. 2002-09-29 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/Makefile.am (TS_PROGS): Added buffer-test sexp-format-test rsa2sexp-test sexp2rsa-test. * testsuite/sexp-test.c (test_main): Updated calls to sexp_iterator_assoc. * testsuite/testutils.h (MEMEQH): New macro. * testsuite/sexp2rsa-test.c: New test. * testsuite/sexp-format-test.c: New test. * testsuite/rsa2sexp-test.c: New test. * testsuite/buffer-test.c: New test. * testsuite/testutils.c (test_rsa_key): Copied this function from... testsuite/rsa-keygen-test.c: ... here. * examples/rsa-keygen.c: New file. * Makefile.am: Added new source files and headers buffer.h, buffer.c, sexp_format.c, sexp2rsa.c, rsa2sexp.c. * rsa.h (rsa_keypair_to_sexp, rsa_keypair_from_sexp): New prototypes. * rsa2sexp.c, sexp2rsa.c: New files. * sexp.c (sexp_iterator_assoc): Don't enter the list, associate keys within the current list. Still exit the list when done. (sexp_iterator_assoc): Represent keys as plain NUL-terminated strings. (sexp_iterator_check_type, sexp_iterator_check_types): New functions. * sexp_format.c: New file, implementing an sexp canonical syntax formatter. * buffer.c, buffer.h: New files, implementing a bare-bones string stream. * bignum.c (nettle_mpz_sizeinbase_256): New function. 2002-09-28 Niels M�ller <nisse@cuckoo.hack.org> * sexp.c (sexp_iterator_assoc): Return 0 for missing or duplicate keys. Now passes all the tests. * sexp.c (sexp_iterator_simple): Bugfixes. Check earlier that length doesn't grow too large. (sexp_iterator_next): Skip the current list only if type is SEXP_LIST. Handle ')'. (sexp_iterator_enter_list): Set type to SEXP_START. (sexp_iterator_exit_list): Likewise. Don't skip the ')' here. (sexp_iterator_assoc): Bug fix. * testsuite/sexp-test.c (test_main): Reordered sexp_iterator_assoc tests. * nettle.texinfo (Randomness): Documented that yarrow256_init can be called with a zero number of sources. * testsuite/testutils.h (ASSERT): New macro. * testsuite/sexp-test.c: Test sexp parser. * Makefile.am (SUBDIRS): Added sexp files. * sexp.c, sexp.h: New files, implementing an sexp-parser. 2002-08-27 Niels M�ller <niels@s3.kth.se> * Makefile.am (DISTCLEANFILES): make distclean should delete the assembler-related symlinks. 2002-08-26 Niels M�ller <nisse@cuckoo.hack.org> * Makefile.am (%.o: %.asm): Create an empty (and unused) dependency file, to make the make/automake dependency tracking happier. 2002-07-18 Niels M�ller <niels@s3.kth.se> * examples/nettle-benchmark.c (main): Try openssl's ciphers as well, if available. * Makefile.am (libnettle_a_SOURCES): Added nettle-openssl.c. * nettle-openssl.c: New file. * nettle-internal.h: Declare openssl glue ciphers. * des-compat.h: Extra name-mangling, to avoid collisions in case a program links with both nettle and libcrypto (the nettle-benchmark program does). * configure.ac: Don't use -ggdb3 with gcc-2.96. Check for openssl's libcrypto (for benchmarking). 2002-05-16 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm: Deleted registers i and t3. (_aes_crypt): Moved some registers around. We now use input registers only for arguments, local registers for loop invariants, output registers for temporaries and loop variables, and no global registers at all. * sparc/aes.asm (AES_FINAL_ROUND): New macro. (_aes_crypt): Use AES_FINAL_ROUND for the first word if the final round. (_aes_crypt): And for the rest of the final round. (AES_FINAL_ROUND): Don't update dst, just access it offseted by i. (_aes_crypt): Add 16 to dst at the end of the final round. (AES_ROUND): Use ldub, not ld + and, to get the third byte of wtxt. (AES_ROUND): Use ldub, not lduh + and, to get the second byte of a word. (AES_ROUND): Reordered instructions, so that we can save one register. (AES_ROUND): Eliminated use of t3. (AES_FINAL_ROUND): Eliminated ands. (AES_FINAL_ROUND): Reordered, so that we can save one register. (AES_FINAL_ROUND): Eliminated t3. (AES_LOAD): New macro. (_aes_crypt): Unrolled source loop. (_aes_crypt): Use AES_LOAD macro. (_aes_crypt): Deleted cruft from the old source loop. (AES_LOAD): Eliminated t3. 2002-05-15 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm (AES_ROUND): New macro. (_aes_crypt): Use AES_ROUND for first word of the round function. (_aes_crypt): And for the rest of the round function. * sparc/aes.asm (_aes_crypt): Deleted a bunch of additions, after accessing IDX1. * aes-internal.h (struct aes_table): sparc_idx[0] should now contain index values shifted by the size of a word, and with 2 added. This saves some additions in the sparc assembler code. Updates aes-encrypt-table.c and aes-decrypt-table.c. * sparc/aes.asm (_aes_crypt): Unrolled final loop, preparing for optimizations. (_aes_crypt): Eliminated i from forst copy of the loop. Some cleanup. (_aes_crypt): And from second copy. (_aes_crypt): And from third. (_aes_crypt): And fourth. (_aes_crypt): Eliminated updates of i from the loop. (_aes_crypt): Access IDX1 and IDX3 through the T pointer, saving two registers. * aes-internal.h (struct aes_table): Renamed the shift_idx field to sparc_idx, as it will be tweaked to improve the sparc code. Also reduced its size to [2][4]. (IDX_FACTOR): Deleted constant. * aes-encrypt-table.c (_aes_encrypt_table): Adapted initializer of sparc_idx. * aes-decrypt-table.c (_aes_decrypt_table): Likewise. * asm.m4: Deleted AES_SIDX2, to match struct aes_table. * sparc/aes.asm (_aes_crypt): Unrolled the inner loop, preparing for optimizations suggested by Marcus Comstedt. (_aes_crypt): Eliminated i from the first copy of the inner loop. (_aes_crypt): And from the second copy. (_aes_crypt): And from the third copy. (_aes_crypt): And from the fourth copy. (_aes_crypt): Renamed .Linner_loop to .Lround_loop. (_aes_crypt): Eliminated the loop variable i from the unrolled loop. (_aes_crypt): Deleted moves of constants into t2. 2002-05-15 Niels M�ller <niels@s3.kth.se> * x86/aes-encrypt.asm (aes_encrypt): Use AES_SUBST_BYTE. * x86/aes-decrypt.asm (aes_decrypt): Likewise. (aes_decrypt): Use AES_STORE. (aes_decrypt): Deleted first xchgl instruction into, permuting the AES_ROUND calls instead. (aes_decrypt): Likewise for the final round. (aes_decrypt): Got rid if the xchgl instruction after the final round, folding it into the final round. * x86/machine.m4: Renamed AES_LAST_ROUND to AES_FINAL_ROUND. Updated users. * x86/aes-decrypt.asm (aes_decrypt): Use the AES_LOAD macro. (aes_decrypt): Start using AES_ROUND. (aes_decrypt): Use AES_LAST_ROUND. * x86/aes-decrypt.asm (aes_decrypt): Moved function to a separate file... * x86/aes.asm: ... from here. * x86/aes.asm (aes_decrypt): Use _aes_decrypt_table instead of itbl1-4. Commented out the inclusion of aes_tables.asm. (aes_decrypt): Use _aes_decrypt_table instead of isbox. * x86/aes-decrypt.asm: New file, empty at the start. * Makefile.am (libnettle_a_SOURCES): Added aes-decrypt-table.c. * aes-decrypt.c (_aes_decrypt_table): Moved from this file... * aes-decrypt-table.c (_aes_decrypt_table): ... to a new file. * testsuite/aes-test.out: New file, with the output of testsuite/aes-test, when aes.c has been compiled with debugging printouts of intermediate state. 2002-05-15 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm: (_aes_crypt): Restore %fp at end of function, to make %fp available for other uses. * sparc/aes.asm: The frame setup was broken. Tried to fix it. Reverted to revision 1.70 + minor changes from the head revision. * x86/aes-encrypt.asm (aes_encrypt): Use test instead of cmpl $0,. * x86/machine.m4 (AES_SUBST_BYTE): New macro. * sparc/aes.asm: wtxt needs no register of it's own, as its pointed to by %sp. %g5 moved to %l0, the register previously allocated for wtxt, so that we stay clean of the reserved %g registers. 2002-05-14 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm: Avoid using %g6 and %g7, as they are reserved for operating sytem use. Use %i5 and %o7 instead. Also moved %g4 to %g1. (_aes_crypt): Allocate only 32 bytes local storage on the stack. Calculate wtxt and tmp using offsets from %sp, not %fp. 2002-05-14 Niels M�ller <niels@s3.kth.se> * x86/aes-encrypt.asm (aes_encrypt): Replaced first quarter of the round function with an invocation of AES_ROUND. (aes_encrypt): Similarly for the second column. (aes_encrypt): Similarly for the rest of the round function. * x86/machine.m4 (AES_ROUND): New macro. * x86/aes-encrypt.asm (aes_encrypt): Use AES_LOAD macro. * x86/machine.m4 (AES_LOAD): New macro. * x86/aes-encrypt.asm (aes_encrypt): Use AES_STORE. * x86/machine.m4 (AES_STORE): New macro. * x86/aes-encrypt.asm (aes_encrypt): Use the AES_LAST_ROUND macro for the first column of the final round. (aes_encrypt): Similarly for the second column. (aes_encrypt): Similarly for the third and fourth column. (aes_encrypt): Deleted xchgl instruction in final round, by reordering the second and fourth round. * x86/machine.m4 (AES_LAST_ROUND): New macro. * x86/aes-encrypt.asm (aes_encrypt): Move code here... * x86/aes.asm: ...from here. * x86/aes.asm: Use addl and subl, not add and sub. Replaced references to dtbl1-4 with references to _aes_encrypt_table. * configure.ac (asm_path): Enable x86 assembler. * x86/aes.asm (aes_decrypt): Adapted to the current interface. Notably, the order of the subkeys was reversed. Single block encrypt/decrypt works now. (aes_encrypt, aes_decrypt): Added an outer loop, so that we can encrypt more than one block at a time. 2002-05-07 Niels M�ller <niels@s3.kth.se> * configure.ac: Generate config.m4. * x86/aes.asm: Use C for comments, include the tables using include_src, and commented out the key setup functions. Fixed the processing of the first handling of the round function. Now, encryption of a single block works! Multiple blocks, and decryption, is still broken. * x86/machine.m4: New file (empty). * x86/aes-encrypt.asm: New file, empty for now. * Makefile.am (%.asm): Added asm.m4, machine.m4 and config.m4 to the m4 command line. (libnettle_a_SOURCES): Added aes-encrypt-table.c. * sparc/aes.asm: No need to include asm.m4, that is taken care of by the Makefile. * config.m4.in: New file, configuration for asm.m4. * asm.m4 (C, include_src): New macros. * aes-encrypt-table.c: New file, table moved out from aes-encrypt.c. 2002-05-06 Niels M�ller <niels@s3.kth.se> * configure.ac (CFLAGS): Don't enable -Waggregate-return. 2002-05-05 Niels M�ller <nisse@lysator.liu.se> * configure.ac: Pass no arguments to AM_INIT_AUTOMAKE. 2002-05-05 Niels M�ller <nisse@cuckoo.hack.org> * configure.ac: Update for automake-1.6. * configure.ac: Renamed file, used to be configure.in. 2002-03-20 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/run-tests (test_program): Added missing single quote. 2002-03-20 Niels M�ller <nisse@lysator.liu.se> * testsuite/run-tests (test_program): Test the exit status of the right process. 2002-03-19 Pontus Sk�ld <pont@it.uu.se> * testsuite/run-tests: Removed /bin/bashisms to use with /bin/sh. 2002-03-18 Niels M�ller <nisse@cuckoo.hack.org> * rsa-keygen.c (rsa_generate_keypair): Output a newline after a non-empty line of 'e':s (bad e was chosen, try again). 2002-03-16 Niels M�ller <nisse@cuckoo.hack.org> * configure.in (asm_path): AC_CONFIG_LINKS adds $srcdir automatically. 2002-03-14 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm, x86/aes.asm: Added copyright notice. * Makefile.am (libnettle_a_SOURCES): Added aes-internal.h. (EXTRA_DIST): Added assembler files. * configure.in (asm_path): Use $srcdir when looking for the files. * configure.in (asm_path): For now, disable x86 assembler code. Bumped version to 1.6. 2002-02-25 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm (_aes_crypt): Moved increment of src into the source_loop. Also fixed stop condition, the loop was run 5 times, not 4, as it should. (_aes_crypt): Use src directly when accessing the source data, don't use %o5. (_aes_crypt): Renamed variables in source_loop. (_aes_crypt): Changed stop condition in source_loop to not depend on i. Finally reduced the source_loop to 16 instructions. Also increased the alignment of the code to 16. (_aes_crypt): In final_loop, use preshifted indices. (_aes_crypt): In final_loop, construct the result in t0. Use t0-t3 for intermediate values. (_aes_crypt): In final_loop, use the register idx. (_aes_crypt): In final_loop, keep i multiplied by 4. Use key to get to the current roundkey. (_aes_crypt): In final_loop, use i for indexing. (_aes_crypt): Update dst in the output loop. This yields a delay slot that isn't filled yet. (_aes_crypt): Decrement round when looping, saving yet some instructions. (_aes_crypt): Reformatted code as blocks of four instructions each. (_aes_crypt): Copy the addresses of the indexing tables into registers at the start. No more need for the idx register. (_aes_crypt): Deleted idx register. (_aes_crypt): Some peep hole optimizations, duplicating some instructions to fill nop:s, and put branch instructions on even word addresses. 2002-02-22 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm (_aes_crypt): Moved some more additions out of the inner loop, using additional registers. (_aes_crypt): Deleted one more addition from the inner loop, by using the subkey pointer. 2002-02-19 Niels M�ller <nisse@cuckoo.hack.org> * configure.in (asm_path): Renamed "path" to "asm_path". Also look for a machine.m4. 2002-02-16 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm: Use that IDX2(j) == j ^ 2 * Makefile.am (libnettle_a_SOURCES): Reordered aes-decrypt.c and aes-encrypt.c. For some strange reason it makes the benchmark go faster... * sparc/aes.asm (_aes_crypt): Use double-buffering, and no separate loop for adding the round key. (round): Keep round index muliplied by 16, so it can be used directly for indexing the subkeys. (_aes_crypt): In the final loop, use ctx+round to access the subkeys, no need for an extra register. 2002-02-15 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm (_aes_crypt): Renaming variables, allocating locals starting from %l0. (_aes_crypt): Consistently use %l4, aka i, as the variable for the innermost loops. (_aes_crypt): Moved reading of ctx->nrounds out of the loop. (_aes_crypt): In final_loop, deleted a redundant mov, and use i as loop variable. (_aes_crypt): Started renumbering registers in the inner loop. The computation for the table[j] sub-expression should be kept in register %o[j]. (_aes_crypt): Renamed more variables in the inner loop. Now the primary variables are t0, t1, t2, t3. * sparc/aes.asm (_aes_crypt): Swapped register %i0 and %o5, %i1 and %o0, %i2 and %o4, %i3 and %o3, %i4 and %o2. (_aes_crypt): wtxt was stored in both %l1 and %l2 for the entire function. Freed %l2 for other uses. (_aes_crypt): Likewise for tmp, freeing register %o1. * sparc/machine.m4: New file, for sparc-specific macros. * sparc/aes.asm (_aes_crypt): Hacked the source_loop, to get rid of yet another redundant loop variable, and one instruction. (_aes_crypt): Strength reduce loop variable in the inner loop, getting rid of one register. (_aes_crypt): Use pre-shifted indices (aes_table.idx_shift), to avoid some shifts in the inner loop. (_aes_crypt): Don't check for nrounds==0 at the start of the loop. * asm.m4: Define and use structure-defining macros. * Makefile.am (%.asm): Use a GNU pattern rule, to make %.o depend on both %.asm and asm.m4. * aes-internal.h (struct aes_table): New subtable idx_shift. Updated tables in aes_encrypt.c and aes_decrypt.c. * asm.m4: Use eval to compute values. * sparc/aes.asm (_aes_crypt): Deleted commented out old version of the code. * asm.m4: Added constants for individual rows of the aes table. * aes.c (IDX0, IDX1, IDX2, IDX3): New macros, encapsualting the structure of the idx table. * asm.m4: Define various aes struct offsets. * testsuite/cbc-test.c (test_cbc_bulk): Use aes_set_encrypt_key and aes_set_decrypt_key. * sparc/aes.asm (_aes_crypt): Use symbolic names for the fucntion arguments. 2002-02-14 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm: Copied gcc assembler code for _aes_crypt. * aesdata.c: New program for generating AES-related tables. * testsuite/testutils.c (print_hex): New function (moved from yarrow-test.c). * testsuite/rsa-keygen-test.c (progress): Declare the ctx argument as UNUSED. * testsuite/cbc-test.c (test_cbc_bulk): New function, testing CBC with larger blocks. * yarrow256.c: Replaced uses of aes_set_key with aes_set_encrypt_key. * nettle-meta.h (_NETTLE_CIPHER_SEP): New macro, useful for algorithms with separate encyption and decryption key setup. * aes-internal.h (struct aes_table): New structure, including all constant tables needed by the unified encryption or decryption function _aes_crypt. * aes.c (_aes_crypt): New function, which unifies encryption and decryption. AES key setup now uses two separate functions for setting encryption and decryption keys. Applications that don't do decryption need no inverted subkeys and no code to generate them. Similarly, the tables (about 4K each for encryption and decryption), are put into separate files. * aes.h (struct aes_ctx): Deleted space for inverse subkeys. For decryption, the inverse subkeys replace the normal subkeys, and they are stored _in the order they are used_. * aes-set-key.c (aes_set_key): Deleted file, code moved... * aes-set-decrypt-key.c, aes-set-encrypt-key.c: New files, separated normal and inverse key setup. * aes-tables.c: Deleted, tables moved elsewhere... * aes-encrypt.c, aes-decrypt.c: New files; moved encryption and decryption funktions, and needed tables, into separate files. 2002-02-13 Niels M�ller <nisse@cuckoo.hack.org> * aes.c (aes_encrypt): Don't unroll the innerloop. (aes_encrypt): Don't unroll the loop for the final round. (aes_decrypt): Likewise, no loop unrolling. * aes-set-key.c (aes_set_key): Reversed the order of the inverted subkeys. They are now stored in the same order as they are used. * aes-tables.c (itable): New bigger table, generated by aesdata.c. * aes.c (aes_decrypt): Rewrote to use the bigger tables. 2002-02-12 Niels M�ller <nisse@cuckoo.hack.org> * aes.c (aes_encrypt): Interleave computation and output in the final round. * aes-internal.h (AES_SMALL): New macro. * aes.c (aes_encrypt): Optionally use smaller rotating inner loop. * aes-tables.c (dtbl): Replaced with table generated by aesdata. * aes.c (aes_encrypt): Rewrite, now uses larger tables in order to avoid rotates. * sparc/aes.asm (aes_encrypt): Strength reduced on j, getting rid of one register and one instruction in the inner loop. * sparc/aes.asm (idx, aes_encrypt): Multiplied tabled values by 4, making it possible to get rid of some shifts in the inner loop. * configure.in: Fixed spelling of --enable-assembler. Commented out debug echo:s. * asm.m4: New file. For now, only doing changequote and changecom. * sparc/aes.asm (aes_encrypt): Added comments. (aes_encrypt): Cut off redundant instruction per block, also saving one redundant register pointing to idx. (idx_row): New macro. Include asm.m4. 2002-02-11 Niels M�ller <nisse@cuckoo.hack.org> * sparc/aes.asm (key_addition_8to32): Cleaned up. Deleted gcc-generated debugging information. * sparc/aes.asm (key_addition32): First attempt at optimization. Made it slower ;-) * sparc/aes.asm (key_addition32): Unrolled loop, gained 4% speed, payed four instructions compared to gcc generated code. * Makefile.am (.asm.o): New rule for assembling via m4. (libnettle_a_SOURCES): Added new rsa and aes files. * configure.in: New command line option --enable-assembler. Selects assembler code depending on the host system. * rsa-decrypt.c, rsa-encrypt.c: New files for rsa pkcs#1 encryption. * aes-set-key.c, aes-tables.c: New files, split off from aes.c. Tables are now not static, but use a _aes_ prefix on their names. * aes-internal.h: New file. * cast128-meta.c (_NETTLE_CIPHER_FIX): Use _NETTLE_CIPHER_FIX. * cbc.c (cbc_decrypt_internal): New function, doing the real CBC procesing and requiring that src != dst. (cbc_decrypt): Use cbc_decrypt_internal. If src == dst, use a buffer of limited size to copy the ciphertext. * nettle-internal.c (nettle_blowfish128): Fixed definition, with key size in bits. * nettle-meta.h (_NETTLE_CIPHER_FIX): New macro, suitable for ciphers with a fixed key size. * examples/nettle-benchmark.c (display): New function for displaying the results, including MB/s figures. * sparc/aes.asm: New file. Not yet tuned in any way (it's just the code generated by gcc). 2002-02-11 Niels M�ller <nisse@lysator.liu.se> * x86/aes.asm, x86/aes_tables.asm: New assembler implementation by Rafael Sevilla. 2002-02-06 Niels M�ller <nisse@cuckoo.hack.org> Applied patch from Dan Egnor improving the base64 code. * base64.h (BASE64_ENCODE_LENGTH): New macro. (struct base64_ctx): New context struct, for decoding. (BASE64_DECODE_LENGTH): New macro. * base64.c (base64_decode_init): New function. (base64_decode_update): New function, replacing base64_decode. Takes a struct base64_ctx argument. * nettle-meta.h: Updated nettle_armor, and related typedefs and macros. * testsuite/testutils.c (test_armor): Updated. * configure.in: Use AC_PREREQ(2.50). 2002-02-01 Niels M�ller <nisse@cuckoo.hack.org> * Released nettle-1.5. 2002-01-31 Niels M�ller <nisse@cuckoo.hack.org> * acinclude.m4: Commented out gmp-related macros, they're probably not needed anymore. 2002-01-31 Niels M�ller <nisse@lysator.liu.se> * configure.in: Added command line options --with-lib-path and --with-include-path. Use the RPATH-macros to get correct flags for linking the test programs with gmp. * acinclude.m4: New file. 2002-01-31 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo (Randomness): New subsection on Yarrow. 2002-01-30 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo (Randomness): New chapter. Spell checking and ispell configuration. * md5.c: Added reference to RFC 1321. 2002-01-24 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo (Public-key algorithms): Minor fixes. 2002-01-22 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo (Nettle soup): New chapter. (Hash functions): New subsection on struct nettle_hash. (Hash functions): New subsection on struct nettle_cipher. (Keyed hash functions): New section, describing MAC:s and HMAC. (Public-key algorithms): New chapter. * testsuite/testutils.c (test_armor): New function. * testsuite/base64-test.c: New testcase. * testsuite/Makefile.am (TS_PROGS): Added base64-test. * nettle-meta.h (struct nettle_armor): New struct. * configure.in: Bumped version to 1.5. * Makefile.am (libnettle_a_SOURCES): Added base64 files, and some missing header files. * base64.c, base64.h, base64-meta.c: New files, hacked by Dan Egnor. 2002-01-16 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/yarrow-test.c: Deleted ran_array code, use knuth-lfib.h instead. * testsuite/testutils.c (test_rsa_md5, test_rsa_sha1): Moved functions here... * testsuite/rsa-test.c: ...from here. * testsuite/rsa-keygen-test.c: New file. * testsuite/knuth-lfib-test.c: New file. * Makefile.am (libnettle_a_SOURCES): Added knuth-lfib.c and rsa-keygen.c. * rsa-keygen.c: New file. * rsa.h (RSA_MINIMUM_N_OCTETS): New constant. (RSA_MINIMUM_N_BITS): New constant. (nettle_random_func, nettle_progress_func): New typedefs. Perhaps they don't really belong in this file. (rsa_generate_keypair): Added progress-callback argument. * macros.h (READ_UINT24, WRITE_UINT24, READ_UINT16, WRITE_UINT16): New macros. * knuth-lfib.c, knuth-lfib.h: New files, implementing a non-cryptographic prng. 2002-01-15 Niels M�ller <nisse@cuckoo.hack.org> * hmac-sha1.c: New file. 2002-01-14 Niels M�ller <nisse@cuckoo.hack.org> * configure.in: Bumped version to 1.1. * testsuite/hmac-test.c (test_main): Added hmac-sha1 test cases. * rsa.c (rsa_init_private_key, rsa_clear_private_key): Handle d. * rsa.h (struct rsa_private_key): Reintroduced d attribute, to be used only for key generation output. (rsa_generate_keypair): Wrote a prototype. * Makefile.am (libnettle_a_SOURCES): Added hmac-sha1.c and nettle-internal.h. * des.c: Use static const for all tables. (des_set_key): Use a new const * variable for the parity procesing, for constness reasons. * list-obj-sizes.awk: New file. * nettle-internal.c, nettle-internal.h: New files. * testsuite/Makefile.am (TS_PROGS): Added hmac-test. Deleted old m4-stuff. * testsuite/testutils.h (LDATA): Moved this macro here,... * testsuite/rsa-test.c: ... from here. * testsuite/hmac-test.c: New file. * hmac.h: General cleanup. Added declarations of hmac-md5, hmac-sha1 and hmac-sha256. * hmac.c: Bug fixes. * hmac-md5.c: First working version. * Makefile.am (libnettle_a_SOURCES): Added hmac.c and hmac-md5.c. (libnettleinclude_HEADERS): Added hmac.h. * testsuite/rsa-test.c: Also test a 777-bit key. * rsa.c (rsa_check_size): Changed argument to an mpz_t. Updated callers. (rsa_prepare_private_key): Compute the size of the key by computing n = p * q. * rsa-compat.c: Adapted to new private key struct. * rsa_md5.c: Likesize. * rsa_sha1.c: Likesize. * rsa.c (rsa_check_size): New function, for computing and checking the size of the modulo in octets. (rsa_prepare_public_key): Usa rsa_check_size. (rsa_init_private_key): Removed code handling n, e and d. (rsa_clear_private_key): Likewise. (rsa_compute_root): Always use CRT. * rsa.h (struct rsa_private_key): Deleted public key and d from the struct, as they are not needed. Added size attribute. 2002-01-12 Niels M�ller <nisse@cuckoo.hack.org> * Makefile.am: Added *-meta files. * rsa.c (rsa_init_public_key): New function. (rsa_clear_public_key): Likewise. (rsa_init_private_key): Likewise. (rsa_clear_private_key): Likewise. * aes-meta.c: New file. * arcfour-meta.c: New file. * cast128-meta.c: New file. * serpent-meta.c: New file. * twofish-meta.c: New file. * examples/nettle-benchmark.c: Use the interface in nettle-meta.h. 2002-01-11 Niels M�ller <nisse@cuckoo.hack.org> Don't use m4 for generating test programs, it's way overkill. Use the C preprocessor instead. * testsuite/*-test.c: New file. * hmac.c, hmac.h, hmac-md5.c: New files. Defined structures describing the algoriths. Useful for code that wants to treat an algorithm as a black box. * nettle-meta.h, md5-meta.c, sha1-meta.c, sha256-meta.c: New files. 2002-01-09 Niels M�ller <nisse@cuckoo.hack.org> * rsa-compat.c: Updated for new md5 and rsa conventions. * rsa_md5.c: Represent a signature as an mpz_t, not a string. Updated calls of md5 functions. * rsa_sha1.c: Likewise. * rsa.c (rsa_prepare_public_key): Renamed function, was rsa_init_public_key. (rsa_prepare_private_key): Renamed function, was rsa_init_private_key. * nettle.texinfo (Hash functions): Update for the changed interface without *_final. Document sha256. * testsuite/md5-test.m4, testsuite/sha1-test.m4, testsuite/sha256-test.m4, testsuite/yarrow-test.c: Updated for new hash function interface. * yarrow256.c: Removed calls of sha256_final and and some calls of sha256_init. * md5-compat.c (MD5Final): Call only md5_digest. * md5.c (md5_digest): Call md5_final and md5_init. (md5_final): Declared static. sha1.c, sha256.c: Analogous changes. * bignum.c (nettle_mpz_get_str_256): Declare the input argument const. 2001-12-14 Niels M�ller <nisse@cuckoo.hack.org> * Makefile.am (EXTRA_DIST): Added $(des_headers). Changed dependencies for $(des_headers) to depend only on the source file desdata.c, not on the executable. 2001-12-12 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/yarrow-test.c (main): Updated testcase to match fixed generator. Send verbose output to stdout, not stderr. * yarrow256.c (yarrow_slow_reseed): Bug fix, update the fast pool with the digest of the slow pool. (yarrow256_init): Initialize seed_file and counter to zero, to ease debugging. 2001-12-07 Niels M�ller <nisse@cuckoo.hack.org> * bignum.c (nettle_mpz_get_str_256): Fixed handling of leading zeroes. 2001-12-05 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/yarrow-test.c (main): Updated test to match the fixed key event estimator. * yarrow_key_event.c (yarrow_key_event_estimate): Fixed handling of timing info. * nettle.texinfo (Copyright): Say that under certain circumstances, Nettle can be used as if under the LGPL. * README: Added a paragraph on copyright. 2001-11-15 Niels M�ller <nisse@cuckoo.hack.org> * yarrow256.c (yarrow256_force_reseed): New function. 2001-11-14 Niels M�ller <nisse@ehand.com> * testsuite/yarrow-test.c (main): Use yarrow256_is_seeded. * yarrow256.c (yarrow256_needed_sources): New function. (yarrow256_is_seeded): New function. (yarrow256_update): Use yarrow256_needed_sources. 2001-11-14 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/yarrow-test.out: Updated, to match the seed-file aware generator. * testsuite/yarrow-test.c: Updated expected_output. Check the seed file contents at the end. * yarrow256.c (yarrow256_seed): New function. (yarrow_fast_reseed): Create new seed file contents. 2001-11-13 Niels M�ller <nisse@cuckoo.hack.org> * yarrow.h: Deleted yarrow160 declarations. 2001-11-02 Niels M�ller <nisse@ehand.com> * yarrow256.c (yarrow256_init): Fixed order of code and declarations. 2001-10-30 Niels M�ller <nisse@ehand.com> * rsa-compat.h: Added real prototypes and declarations. * Makefile.am (libnettle_a_SOURCES): Added rsa-compat.h and rsa-compat.c. * rsa-compat.c: New file, implementing RSA ref signature and verification functions. * configure.in: Check for libgmp. Deleted tests for SIZEOF_INT and friends. * rsa_sha1.c: New file, PKCS#1 rsa-sha1 signatures. * rsa_md5.c: New file, PKCS#1 rsa-md5 signatures. * rsa.c: New file with general rsa functions. * Makefile.am (libnettle_a_SOURCES): Added rsa and bignum files. * bignum.c, bignum.h: New file, with base256 functions missing in gmp. * testsuite/Makefile.am: Added bignum-test. * testsuite/run-tests (test_program): Check the xit code more carefully, and treat 77 as skip. This convention was borrowed from autotest. * testsuite/macros.m4: New macro SKIP which exits with code 77. * testsuite/bignum-test.m4: New file. 2001-10-15 Niels M�ller <nisse@ehand.com> * testsuite/Makefile.am (EXTRA_DIST): Include rfc1750.txt in the distribution. 2001-10-14 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/des-test.m4: Added testcase taken from applied cryptography. * testsuite/yarrow-test.c: Use sha256 instead of sha1 for checking input and output. Updated the expected values. * yarrow256.c (YARROW_RESEED_ITERATIONS): New constant. (yarrow_iterate): New function. (yarrow_fast_reseed): Call yarrow_iterate. * testsuite/yarrow-test.c: Added verbose flag, disabled by default. 2001-10-12 Niels M�ller <nisse@ehand.com> * examples/nettle-benchmark.c: Added more ciphers. * Makefile.am (SUBDIRS): Added the examples subdir. * configure.in: Output examples/Makefile. 2001-10-12 Niels M�ller <nisse@cuckoo.hack.org> * examples/nettle-benchmark.c: New benchmarking program. 2001-10-10 Niels M�ller <nisse@ehand.com> * testsuite/yarrow-test.c: Open rfc1750.txt. Hash input and output, and compare to expected values. * testsuite/Makefile.am (CFLAGS): Don't disable optimization. (run-tests): Set srcdir in the environment when running run-tests. * testsuite/rfc1750.txt: Added this rfc as test input for yarrow. * yarrow_key_event.c (yarrow_key_event_estimate): Check if previous is zero. (yarrow_key_event_init): Initialize previous to zero. * yarrow256.c: Added debug some output. * testsuite/yarrow-test.c (main): Better output of entropy estimates at the end. 2001-10-09 Niels M�ller <nisse@ehand.com> * testsuite/Makefile.am (TS_PROGS): Added yarrow-test. * testsuite/yarrow-test.c: New file. * yarrow256.c (yarrow256_init): Initialize the sources. (yarrow256_random): Fixed loop condition. * yarrow.h (YARROW_KEY_EVENT_BUFFER): New constant. * yarrow_key_event.c: New file. * Makefile.am (libnettle_a_SOURCES): Added yarrow_key_event.c. 2001-10-08 Niels M�ller <nisse@cuckoo.hack.org> * yarrow.h (struct yarrow_key_event_ctx): New struct. * yarrow256.c (yarrow_fast_reseed): Generate two block of output using the old key and feed into the pool. * yarrow.h (struct yarrow256_ctx): Deleted buffer, index and block_count. * yarrow256.c (yarrow_fast_reseed): New function. (yarrow_slow_reseed): New function. (yarrow256_update): Check seed/reseed thresholds. (yarrow_gate): New function, extracted from yarrow_generate_block_with_gate which was deleted. (yarrow_generate_block_with_gate): Deleted function. (yarrow256_random): Don't buffer any output, instead gate after each request. (YARROW_GATE_THRESHOLD): Deleted constant. 2001-10-07 Niels M�ller <nisse@cuckoo.hack.org> * Makefile.am: Added yarrow files. * yarrow256.c: New file, implementing Yarrow. Work in progress. * sha256.c: New file, implementing SHA-256. * testsuite/Makefile.am (CFLAGS): Added sha256-test. * testsuite/sha256-test.m4: New testcases for SHA-256. * shadata.c: New file, for generating SHA-256 constants. * sha.h: Renamed sha1.h to sha.h, and added declarations for SHA-256. 2001-10-05 Niels M�ller <nisse@ehand.com> * testsuite/aes-test.m4: Added a comment with NIST test vectors. 2001-10-04 Niels M�ller <nisse@ehand.com> * rsa.h, rsa-compat.h, yarrow.h: New files. 2001-09-25 Niels M�ller <nisse@cuckoo.hack.org> * Released version 1.0. 2001-09-25 Niels M�ller <nisse@ehand.com> * sha1.c: Include stdlib.h, for abort. * md5.c: Include string.h, for memcpy. * testsuite/Makefile.am (M4_FILES): New variable. Explicitly list those C source files that should be generated by m4. * configure.in: Changed package name from "libnettle" to "nettle". * Makefile.am (EXTRA_DIST): Added .bootstrap. * AUTHORS: Added a reference to the manual. 2001-09-25 Niels M�ller <nisse@lysator.liu.se> * des-compat.c (des_cbc_cksum): Bug fix, local variable was declared in the middle of a block. 2001-09-19 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo (Compatibility functions): New section, mentioning md5-compat.h and des-compat.h. 2001-09-18 Niels M�ller <nisse@ehand.com> * index.html: New file. 2001-09-16 Niels M�ller <nisse@cuckoo.hack.org> * nettle.texinfo: Added description of des3. Minor fixes. * testsuite/des-compat-test.c (cbc_data): Shorten to 32 bytes (4 blocks), the last block of zeroes wasn't used anyway. * des-compat.c (des_compat_des3_decrypt): Decrypt in the right order. (des_ncbc_encrypt): Bug fixed. (des_cbc_encrypt): Rewritten as a wrapper around des_ncbc_encrypt. 2001-09-14 Niels M�ller <nisse@ehand.com> * testsuite/des-compat-test.c: New file, copied from libdes (freeswan). All implemented functions but des_cbc_cksum seems to work now. * testsuite/Makefile.am (TS_PROGS): Added des-compat-test. * des-compat.c: Added libdes typedef:s. Had to remove all use of const in the process. (des_check_key): New global variable, checked by des_set_key. * des.c (des_set_key): Go on and expand the key even if it is weak. * des-compat.c (des_cbc_cksum): Implemented. (des_key_sched): Fixed return values. 2001-09-11 Niels M�ller <nisse@cuckoo.hack.org> * Makefile.am: Added des-compat.c and des-compat.h * des-compat.c: Bugfixes, more functions implemented. * des-compat.h: Define DES_ENCRYPT and DES_DECRYPT. Bugfixes. 2001-09-10 Niels M�ller <nisse@ehand.com> * nettle.texinfo (Copyright): Added copyright information for serpent. (Miscellaneous functions): Started writing documentation on the CBC functions. (Cipher Block Chaining): This section more or less complete now. 2001-09-09 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/cbc-test.m4: Record intermediate values in a comment. * testsuite/des3-test.m4: Likewise. * testsuite/aes-test.m4: Added test case that appeared broken in the cbc test. * cbc.c (cbc_encrypt): Bug fix, encrypt block *after* XOR:ing the iv. * Makefile.am (libnettleinclude_HEADERS): Added cbc.h. Deleted des3.h. (libnettle_a_SOURCES): Added des3.c. * testsuite/Makefile.am (TS_PROGS): Added des3-test and cbc-test. * testsuite/cbc-test.m4: New testcase. * testsuite/des3-test.m4: New testcase. * cbc.h (CBC_CTX): New macro. (CBC_ENCRYPT): New macro. (CBC_DECRYPT): New macro. * des.c (des_fix_parity): New function. * des3.c: New file, implementing triple des. 2001-09-06 Niels M�ller <nisse@cuckoo.hack.org> * cbc.c, cbc.h: New files, for general CBC encryption. * des-compat.h: Added some prototypes. 2001-09-05 Niels M�ller <nisse@ehand.com> * testsuite/Makefile.am (TS_PROGS): Added md5-compat-test. * README: Copied introduction from the manual. * configure.in: Bumped version to 1.0. * Makefile.am (libnettleinclude_HEADERS): Added missing includes. (libnettle_a_SOURCES): Added md5-compat.c and md5-compat.h. * md5-compat.c, md5-compat.h: New files, implementing an RFC 1321-style interface. 2001-09-02 Niels M�ller <nisse@cuckoo.hack.org> * twofish.c (twofish_decrypt): Fixed for();-bug in the block-loop. Spotted by Jean-Pierre. (twofish_encrypt): Likewise. 2001-07-03 Niels M�ller <nisse@ehand.com> * testsuite/testutils.c: Include string.h. * twofish.c: Include string.h. 2001-06-17 Niels M�ller <nisse@lysator.liu.se> * Makefile.am (des_headers): Dont use $(srcdir)/-prefixes as that seems to break with GNU make 3.79.1. * testsuite/testutils.c, testsuite/testutils.h: Use <inttypes.h>, not <stdint.h>. Include <stdlib.h>. 2001-06-17 Niels M�ller <nisse@cuckoo.hack.org> * Use <inttypes.h>, not <stdint.h>. * blowfish.h (BLOWFISH_MAX_KEY_SIZE): Fixed, should be 56. * Fixed copyright notices. * Makefile.am (libnettle_a_SOURCES): Added desinfo.h and desCode.h. (info_TEXINFOS): Added manual. (EXTRA_DIST): Added nettle.html. (%.html): Added rule for building nettle.html. * nettle.texinfo: New manual. * configure.in: Bumped version to 0.2. * testsuite/Makefile.am (TS_PROGS): Added cast128 test. * Added CAST128. * testsuite/serpent-test.m4: Added a few rudimentary tests extracted from the serpent package. * twofish.c: Adapted to nettle. Made constant tables const. Deleted bytes_to_word and word_to_bytes; use LE_READ_UINT32 and LE_WRITE_UINT32 instead. (twofish_selftest): Deleted. Moved the tests to the external testsuite. (twofish_set_key): Don't silently truncate too large keys. * sha1.c (sha1_update): Use unsigned for length. * serpent.c (serpent_set_key): Read the key backwards. Fixed padding (but there are no test vectors for key_size not a multiple of 4). (serpent_encrypt): Read and write data in the strange order used by the reference implementation. (serpent_decrypt): Likewise. * macros.h (FOR_BLOCKS): New macro, taken from lsh. * blowfish.h (struct blowfish_ctx): Use a two-dimensional array for s. * blowfish.c (initial_ctx): Arrange constants into a struct, to simplify key setup. (F): Deleted all but one definitions of the F function/macro. Added a context argument, and use that to find the subkeys. (R): Added context argument, and use that to find the subkeys. (blowfish_set_key): Some simplification. (encrypt): Deleted code for non-standard number of rounds. Deleted a bunch of local variables. Using the context pointer for everything should consume less registers. (decrypt): Likewise. * Makefile.am (libnettle_a_SOURCES): Added twofish. 2001-06-16 Niels M�ller <nisse@cuckoo.hack.org> * testsuite/blowfish-test.m4: Fixed test. * Added twofish implementation. * blowfish.h (struct blowfish_ctx): Use the correct size for the p array. 2001-06-15 Niels M�ller <nisse@ehand.com> * testsuite/blowfish-test.m4: Fixed testcase, use correct key length. * Makefile.am (libnettle_a_SOURCES): Added blowfish files. ($(des_headers)): Strip directory part when passing file name to desdata. * testsuite/blowfish-test.m4: Added one test, from GNUPG. * Created blowfish.c and blowfish.h (from GNUPG via LSH). Needs more work. * aes.h: Fixed copyright notice to not mention GNU MP. XXX: Review all nettle copyrights. * testsuite/Makefile.am (TS_PROGS): Added tests for twofish and blowfish. 2001-06-13 Niels M�ller <nisse@ehand.com> * Makefile.am (libnettle_a_SOURCES): Added serpent files. 2001-06-12 Niels M�ller <nisse@cuckoo.hack.org> * des.c (des_encrypt, des_decrypt): Assert that the key setup was successful. * testsuite/Makefile.am (TS_PROGS): Added tests for des and sha1. * testsuite/sha1-test.m4: New file. * testsuite/des-test.m4: New file. * Added SHA1 files. * Added desCore files. * Makefile.am: Added desCore and sha1. 2001-04-17 Niels M�ller <nisse@cuckoo.hack.org> * install-sh: Copied the standard install script. * testsuite/Makefile.am (CFLAGS): Disable optimization. Add $(top_srcdir) to the include path. (EXTRA_DIST): Added testutils.h, testutils.c and run-tests. (run-tests): Fixed path to run-tests. * Makefile.am (EXTRA_DIST): Added memxor.h. (libnettleinclude_HEADERS): Install headers in $(libnettleincludedir). 2001-04-13 Niels M�ller <nisse@cuckoo.hack.org> * Initial checkin.