Merge branch 'arm64'

diff --cc ChangeLog
index fd138d82cd135dbe99b014ca3fb5b46e67f8aebd,d9de955766885502cd990c23af73c51398e84d7a..71cf6c96e13fbff6a9f6864c3d1dcbfa9f25f4e0
--- 1/ChangeLog
--- 2/ChangeLog
+++ b/ChangeLog
@@@ -1,73 -1,22 +1,96 @@@
++2021-03-04  Niels Möller  <nisse@lysator.liu.se>
++
++      Merged initial arm64 code.
++
+ 2021-02-03  Niels Möller  <nisse@lysator.liu.se>
+ 
+       * arm64/crypto/gcm-hash.asm: Renamed directory, moved file,...
+       * arm64/v8/gcm-hash.asm: ... old name.
+ 
+ 2021-02-02  Niels Möller  <nisse@lysator.liu.se>
+ 
+       * arm64/v8/gcm-hash.asm: Add ".arch armv8-a+crypto" directive.
+       Supported by both GNU as and clang (the latter at least from
+       version 3.9.1).
+       * configure.ac: Don't add -march=armv8-a+crypto to CFLAGS.
+ 
+ 2021-01-31  Niels Möller  <nisse@lysator.liu.se>
+ 
+       * arm64/v8/gcm-hash.asm: New file, contributed by Maamoun TK and
+       Michael Weiser.
+       * arm64/README: New file. Document endianness issues, contributed
+       by Michael Weiser.
+ 
 +2021-02-17  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * Released Nettle-3.7.1.
 +
 +2021-02-15  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * examples/nettle-openssl.c (nettle_openssl_arcfour128): Deleted
 +      glue to openssl arcfour.
 +      (openssl_arcfour128_set_encrypt_key)
 +      (openssl_arcfour128_set_decrypt_key): Deleted.
 +      * nettle-internal.h: Deleted declaration.
 +      * examples/nettle-benchmark.c (aeads): Delete benchmarking.
 +
 +2021-02-13  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * configure.ac: Bump package version, to 3.7.1.
 +      (LIBNETTLE_MINOR): Bump minor number, to 8.2.
 +      (LIBHOGWEED_MINOR): Bump minor number, to 6.2.
 +
 +2021-02-10  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * chacha-crypt.c (_nettle_chacha_crypt_4core): Fix for the case
 +      that counter increment should be 3 (129 <= message length <= 192).
 +      (_nettle_chacha_crypt32_4core): Likewise.
 +
 +      * testsuite/chacha-test.c (test_chacha_rounds): New function, for
 +      tests with non-standard round count. Extracted from _test_chacha.
 +      (_test_chacha): Deleted rounds argument. Reorganized crypt/crypt32
 +      handling. When testing message prefixes of varying length, also
 +      encrypt the remainder of the message, to catch errors in counter
 +      value update.
 +      (test_main): Add a few tests with large messages (16 blocks, 1024
 +      octets), to improve test coverage for _nettle_chacha_crypt_4core
 +      and _nettle_chacha_crypt32_4core.
 +
 +2021-01-25  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * arm/neon/salsa20-core-internal.asm: Deleted file. This ARM Neon
 +      implementation reportedly gave a speedup of 45% on Cortex A9,
 +      compared to the C implementation, when it was added back in 2013.
 +      That appears to no longer be the case with more recent processors
 +      and compilers. And it's even significantly slower than the C
 +      implementation on some platforms, including the Raspberry Pi 4.
 +      With the introduction of salsa20-2core.asm, performance of this
 +      function is also less important.
 +      * arm/neon/chacha-core-internal.asm: Deleted file, for analogous reasons.
 +      * arm/fat/salsa20-core-internal-2.asm: Deleted file.
 +      * arm/fat/chacha-core-internal-2.asm: Deleted file.
 +      * fat-arm.c (_nettle_salsa20_core, _nettle_chacha_core): Delete fat setup.
 +
 +2021-01-31  Niels Möller  <nisse@lysator.liu.se>
 +
 +      New variants, contributed by Nicolas Mora.
 +      * pbkdf2-hmac-sha384.c (pbkdf2_hmac_sha384): New file and function.
 +      * pbkdf2-hmac-sha512.c (pbkdf2_hmac_sha512): New file and function.
 +      * testsuite/pbkdf2-test.c (test_main): Corresponding tests.
 +
 +2021-01-20  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * ecc-ecdsa-verify.c (ecc_ecdsa_verify): Fix corner case with
 +      all-zero hash. Reported by Guido Vranken.
 +      * testsuite/ecdsa-verify-test.c: Add corresponding test case.
 +
 +2021-01-10  Niels Möller  <nisse@lysator.liu.se>
 +
 +      * fat-ppc.c: Don't use __GLIBC_PREREQ in the same preprocessor
 +      conditional as defined(__GLIBC_PREREQ), but move to a nested #if
 +      conditional. Fixes compile error on OpenBSD/powerpc64, reported by
 +      Jasper Lievisse Adriaanse.
 +
  2021-01-04  Niels Möller  <nisse@lysator.liu.se>
  
        * Released Nettle-3.7.

diff --cc Makefile.in
Simple merge

diff --cc configure.ac
Simple merge