1 /* $NetBSD: chacha_neon.h,v 1.3 2020/07/28 20:08:48 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_CRYPTO_CHACHA_ARCH_ARM_CHACHA_NEON_H 30 #define _SYS_CRYPTO_CHACHA_ARCH_ARM_CHACHA_NEON_H 31 32 #include <sys/types.h> 33 34 #include <crypto/chacha/chacha_impl.h> 35 36 void chacha_core_neon(uint8_t[restrict static 64], 37 const uint8_t[static 16], 38 const uint8_t[static 32], 39 const uint8_t[static 16], 40 unsigned); 41 void hchacha_neon(uint8_t[restrict static 32], 42 const uint8_t[static 16], 43 const uint8_t[static 32], 44 const uint8_t[static 16], 45 unsigned); 46 void chacha_stream_neon(uint8_t *restrict, size_t, 47 uint32_t, 48 const uint8_t[static 12], 49 const uint8_t[static 32], 50 unsigned); 51 void chacha_stream_xor_neon(uint8_t *, const uint8_t *, size_t, 52 uint32_t, 53 const uint8_t[static 12], 54 const uint8_t[static 32], 55 unsigned); 56 void xchacha_stream_neon(uint8_t *restrict, size_t, 57 uint32_t, 58 const uint8_t[static 24], 59 const uint8_t[static 32], 60 unsigned); 61 void xchacha_stream_xor_neon(uint8_t *, const uint8_t *, size_t, 62 uint32_t, 63 const uint8_t[static 24], 64 const uint8_t[static 32], 65 unsigned); 66 67 /* Assembly helpers */ 68 void chacha_stream256_neon(uint8_t[restrict static 256], uint32_t, 69 const uint8_t[static 12], 70 const uint8_t[static 32], 71 const uint8_t[static 16], 72 unsigned); 73 void chacha_stream_xor256_neon(uint8_t[restrict static 256], 74 const uint8_t[static 256], 75 uint32_t, 76 const uint8_t[static 12], 77 const uint8_t[static 32], 78 const uint8_t[static 16], 79 unsigned); 80 81 extern const struct chacha_impl chacha_neon_impl; 82 83 #endif /* _SYS_CRYPTO_CHACHA_ARCH_ARM_CHACHA_NEON_H */ 84