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path: root/cipher/chacha20.c
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2015-05-14Enable AMD64 ChaCha20 implementations on WIN64Jussi Kivilinna1-10/+33
* cipher/chacha20-avx2-amd64.S: Enable when HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined. (ELF): New macro to mask lines with ELF specific commands. * cipher/chacha20-sse2-amd64.S: Enable when HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined. (ELF): New macro to mask lines with ELF specific commands. * cipher/chacha20-ssse3-amd64.S: Enable when HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined. (ELF): New macro to mask lines with ELF specific commands. * cipher/chacha20.c (USE_SSE2, USE_SSSE3, USE_AVX2): Enable when HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined. (ASM_FUNC_ABI, ASM_EXTRA_STACK): New. (chacha20_blocks_t, _gcry_chacha20_amd64_sse2_blocks) (_gcry_chacha20_amd64_ssse3_blocks, _gcry_chacha20_amd64_avx2_blocks) (_gcry_chacha20_armv7_neon_blocks, chacha20_blocks): Add ASM_FUNC_ABI. (chacha20_core): Add ASM_EXTRA_STACK. -- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-12-23chacha20: allow setting counter for stream random accessJussi Kivilinna1-5/+16
* cipher/chacha20.c (CHACHA20_CTR_SIZE): New. (chacha20_ivsetup): Add setup for full counter. (chacha20_setiv): Allow ivlen == CHACHA20_CTR_SIZE. -- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-11-02chacha20: add ARMv7/NEON implementationJussi Kivilinna1-0/+34
* cipher/Makefile.am: Add 'chacha20-armv7-neon.S'. * cipher/chacha20-armv7-neon.S: New. * cipher/chacha20.c (USE_NEON): New. [USE_NEON] (_gcry_chacha20_armv7_neon_blocks): New. (chacha20_do_setkey) [USE_NEON]: Use Neon implementation if HWF_ARM_NEON flag set. (selftest): Self-test encrypting buffer byte by byte. * configure.ac [neonsupport=yes]: Add 'chacha20-armv7-neon.lo'. -- Add Andrew Moon's public domain ARMv7/NEON implementation of ChaCha20. Original source is available at: https://github.com/floodyberry/chacha-opt Benchmark on Cortex-A8 (--cpu-mhz 1008): Old: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 13.45 ns/B 70.92 MiB/s 13.56 c/B STREAM dec | 13.45 ns/B 70.90 MiB/s 13.56 c/B New: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 6.20 ns/B 153.9 MiB/s 6.25 c/B STREAM dec | 6.20 ns/B 153.9 MiB/s 6.25 c/B Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-07-25cipher: Fix compiler warning for chacha20.Werner Koch1-0/+3
* cipher/chacha20.c (chacha20_blocks) [!USE_SSE2]: Do not build.
2014-05-16chacha20: add SSE2/AMD64 optimized implementationJussi Kivilinna1-0/+18
* cipher/Makefile.am: Add 'chacha20-sse2-amd64.S'. * cipher/chacha20-sse2-amd64.S: New. * cipher/chacha20.c (USE_SSE2): New. [USE_SSE2] (_gcry_chacha20_amd64_sse2_blocks): New. (chacha20_do_setkey) [USE_SSE2]: Use SSE2 implementation for blocks function. * configure.ac [host=x86-64]: Add 'chacha20-sse2-amd64.lo'. -- Add Andrew Moon's public domain SSE2 implementation of ChaCha20. Original source is available at: https://github.com/floodyberry/chacha-opt Benchmark on Intel i5-4570 (haswell), with "--disable-hwf intel-avx2 --disable-hwf intel-ssse3": Old: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 1.97 ns/B 483.8 MiB/s 6.31 c/B STREAM dec | 1.97 ns/B 483.6 MiB/s 6.31 c/B New: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 0.931 ns/B 1024.7 MiB/s 2.98 c/B STREAM dec | 0.930 ns/B 1025.0 MiB/s 2.98 c/B Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-05-12chacha20/AVX2: check for ENABLE_AVX2_SUPPORT instead of HAVE_GCC_INLINE_ASM_AVX2Jussi Kivilinna1-1/+1
* cipher/chacha20.c (USE_AVX2): Enable depending on ENABLE_AVX2_SUPPORT, not HAVE_GCC_INLINE_ASM_AVX2. * cipher/chacha20-avx2-amd64.S: Ditto. -- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-05-11chacha20: add AVX2/AMD64 assembly implementationJussi Kivilinna1-1/+19
* cipher/Makefile.am: Add 'chacha20-avx2-amd64.S'. * cipher/chacha20-avx2-amd64.S: New. * cipher/chacha20.c (USE_AVX2): New macro. [USE_AVX2] (_gcry_chacha20_amd64_avx2_blocks): New. (chacha20_do_setkey): Select AVX2 implementation if there is HW support. (selftest): Increase size of buf by 256. * configure.ac [host=x86-64]: Add 'chacha20-avx2-amd64.lo'. -- Add AVX2 optimized implementation for ChaCha20. Based on implementation by Andrew Moon. SSSE3 (Intel Haswell): CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 0.742 ns/B 1284.8 MiB/s 2.38 c/B STREAM dec | 0.741 ns/B 1286.5 MiB/s 2.37 c/B AVX2: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 0.393 ns/B 2428.0 MiB/s 1.26 c/B STREAM dec | 0.392 ns/B 2433.6 MiB/s 1.25 c/B Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-05-11chacha20: add SSSE3 assembly implementationJussi Kivilinna1-0/+22
* cipher/Makefile.am: Add 'chacha20-ssse3-amd64.S'. * cipher/chacha20-ssse3-amd64.S: New. * cipher/chacha20.c (USE_SSSE3): New macro. [USE_SSSE3] (_gcry_chacha20_amd64_ssse3_blocks): New. (chacha20_do_setkey): Select SSSE3 implementation if there is HW support. * configure.ac [host=x86-64]: Add 'chacha20-ssse3-amd64.lo'. -- Add SSSE3 optimized implementation for ChaCha20. Based on implementation by Andrew Moon. Before (Intel Haswell): CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 1.97 ns/B 483.6 MiB/s 6.31 c/B STREAM dec | 1.97 ns/B 484.0 MiB/s 6.31 c/B After: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 0.742 ns/B 1284.8 MiB/s 2.38 c/B STREAM dec | 0.741 ns/B 1286.5 MiB/s 2.37 c/B Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-05-11Add ChaCha20 stream cipherJussi Kivilinna1-0/+504
* cipher/Makefile.am: Add 'chacha20.c'. * cipher/chacha20.c: New. * cipher/cipher.c (cipher_list): Add ChaCha20. * configure.ac: Add ChaCha20. * doc/gcrypt.texi: Add ChaCha20. * src/cipher.h (_gcry_cipher_spec_chacha20): New. * src/gcrypt.h.in (GCRY_CIPHER_CHACHA20): Add new algo. * tests/basic.c (MAX_DATA_LEN): Increase to 128 from 100. (check_stream_cipher): Add ChaCha20 test-vectors. (check_ciphers): Add ChaCha20. -- Patch adds Bernstein's ChaCha20 cipher to libgcrypt. Implementation is based on public domain implementations. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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