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* chacha20poly1305: wire up avx512vl for skylake-xJason A. Donenfeld2017-12-112-4/+17
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* chacha20: avx512vl implementationSamuel Neves2017-12-112-0/+571
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* poly1305: fix avx512f alignment bugSamuel Neves2017-12-111-1/+1
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20poly1305: cleaner generic codeJason A. Donenfeld2017-12-111-90/+49
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* blake2s-x86_64: fix spacingJason A. Donenfeld2017-12-091-70/+70
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* global: add SPDX tags to all filesGreg Kroah-Hartman2017-12-0916-247/+57
| | | | | | | | | | | | | It's good to have SPDX identifiers in all files as the Linux kernel developers are working to add these identifiers to all files. Update all files with the correct SPDX license identifier based on the license text of the project or based on the license in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Modified-by: Jason A. Donenfeld <Jason@zx2c4.com>
* chacha20-arm: fix with clang -fno-integrated-as.David Benjamin2017-12-031-1/+3
| | | | | | | | | The __clang__-guarded #defines cause gas to complain if clang is passed -fno-integrated-as. Emitting .syntax unified when those are used fixes this. Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
* poly1305: update x86-64 kernel to AVX512F onlySamuel Neves2017-12-032-138/+132
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* curve25519: explictly depend on AS_AVXJason A. Donenfeld2017-11-281-3/+3
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* curve25519: modularize dispatchJason A. Donenfeld2017-11-281-91/+82
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* blake2s: tweak avx512 codeSamuel Neves2017-11-261-64/+47
| | | | | | | | This is not as ideal as using zmm, but zmm downclocks. And it's not as fast single-threaded as using the gathers. But it is faster when multithreaded, which is what WireGuard is doing. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20: directly assign constant and initial stateJason A. Donenfeld2017-11-231-59/+20
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* blake2s: hmac space optimizationSamuel Neves2017-11-221-16/+12
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* blake2s: AVX512F+VL implementationSamuel Neves2017-11-222-0/+132
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* poly1305-avx512: requires AVX512F+VL+BWSamuel Neves2017-11-221-1/+6
| | | | Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* chacha20poly1305: poly cleans up its own stateJason A. Donenfeld2017-11-221-5/+1
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* poly1305-x86_64: unclobber %rbpSamuel Neves2017-11-221-131/+145
| | | | | | | | | | | | | | OpenSSL's Poly1305 kernels use %rbp as a scratch register. However, the kernel expects rbp to be a valid frame pointer at any given time in order to do proper unwinding. Thus we need to alter the code in order to preserve it. The most straightforward manner in which this was accomplished was by replacing $d3 in poly1305-x86_64.pl -- formerly %r10 -- by %rdi, and replace %rbp by %r10. Because %rdi, a pointer to the context structure, does not change and is not used by poly1305_iteration, it is safe to use it here, and the overhead of saving and restoring it should be minimal. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* poly1305: import MIPS64 primitive from OpenSSLJason A. Donenfeld2017-11-223-9/+401
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* chacha20poly1305: import ARM primitives from OpenSSLJason A. Donenfeld2017-11-2211-1025/+5513
| | | | ARMv4-ARMv8, with NEON for ARMv7 and ARMv8.
* chacha20poly1305: import x86_64 primitives from OpenSSLSamuel Neves2017-11-229-2455/+5236
| | | | | | x86_64 only at the moment. SSSE3, AVX, AVX2, AVX512. Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
* curve25519-neon: compile in thumb modeJason A. Donenfeld2017-11-142-6/+6
| | | | | In thumb mode, it's not possible to use sp as an operand of and, so we have to muck around with r3 as a scratch register.
* curve25519: reject deriving from NULL private keysJason A. Donenfeld2017-11-111-0/+7
| | | | | These aren't actually valid 25519 points pre-normalization, and doing this is required to make unsetting private keys based on all zeros.
* receive: hoist fpu outside of receive loopJason A. Donenfeld2017-11-102-15/+13
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* curve25519: only enable int128 if compiler support is soundJason A. Donenfeld2017-10-311-1/+1
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* global: style nitsJason A. Donenfeld2017-10-314-129/+198
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* qemu: allow for cross compilationJason A. Donenfeld2017-10-311-3/+3
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* crypto/avx: make sure we can actually use ymm registersJason A. Donenfeld2017-10-313-3/+3
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* blake2: include headers for macrosJason A. Donenfeld2017-10-311-0/+2
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* blake2s: modernize API and have faster _finalJason A. Donenfeld2017-10-172-48/+64
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* crypto/x86_64: satisfy stack validation 2.0Jason A. Donenfeld2017-10-093-31/+29
| | | | | We change this to look like the code gcc generates, so as to keep the objtool checker somewhat happy.
* global: use _WG prefix for include guardsJason A. Donenfeld2017-10-033-9/+9
| | | | Suggested-by: Sultan Alsawaf <sultanxda@gmail.com>
* global: satisfy bitshift pedantryJason A. Donenfeld2017-10-031-7/+7
| | | | Suggested-by: Sultan Alsawaf <sultanxda@gmail.com>
* curve25519-neon-arm: force ARM encoding, since this is unrepresentable in ThumbJason A. Donenfeld2017-10-021-0/+1
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* compat: ensure we can build without compat.hJason A. Donenfeld2017-09-162-0/+2
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* blake2s: satisfy sparseJason A. Donenfeld2017-08-021-2/+2
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* blake2s: fix up alignment issuesJason A. Donenfeld2017-07-201-9/+11
| | | | | When it's unclear if block is aligned, we just assume unaligned, rather than branching.
* blake2s: move compression loop to assemblySamuel Neves2017-07-203-72/+84
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* curve25519: keep certain sandy2x functions in CJason A. Donenfeld2017-06-252-232/+84
| | | | We can let the compiler optimize how it sees fit.
* curve25519: satisfy sparse and use short typesJason A. Donenfeld2017-06-241-26/+26
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* main: annotate init/exit functions to save memoryJason A. Donenfeld2017-06-243-6/+6
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* random: wait for random bytes when generating nonces and ephemeralsJason A. Donenfeld2017-06-121-1/+1
| | | | | | | | | | | We can let userspace configure wireguard interfaces before the RNG is fully initialized, since what we mostly care about is having good randomness for ephemerals and xchacha nonces. By deferring the wait to actually asking for the randomness, we give a lot more opportunity for gathering entropy. This won't cover entropy for hash table secrets or cookie secrets (which rotate anyway), but those have far less catastrophic failure modes, so ensuring good randomness for elliptic curve points and nonces should be sufficient.
* curve25519: use more standard label convention in asmJason A. Donenfeld2017-06-012-24/+24
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* curve25519: add NEON versions for ARMJason A. Donenfeld2017-05-312-27/+2158
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* curve25519: align the basepoint to 32 bytesJason A. Donenfeld2017-05-311-2/+2
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* curve25519: actually, do some things on heap sometimesJason A. Donenfeld2017-05-311-0/+170
| | | | This reverts commit 42dd5bd87e418275203dd6644b6b6b0cc310d4d9.
* chacha20poly1305: add NEON versions for ARM and ARM64Jason A. Donenfeld2017-05-304-6/+1031
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* chacha20poly1305: move constants to rodataJason A. Donenfeld2017-05-215-14/+27
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* chacha20poly1305: implement vectorized hchacha20Jason A. Donenfeld2017-05-172-21/+157
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* chacha20poly1305: check return values of sgopsJason A. Donenfeld2017-04-042-9/+17
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* chacha20poly1305: enforce authtag checking with compilerJason A. Donenfeld2017-03-302-15/+10
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