/*
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* Copyright (C) 2015 Southern Storm Software, Pty Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef CRYPTO_ROTATEUTIL_H
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#define CRYPTO_ROTATEUTIL_H
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#include <inttypes.h>
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// Rotation functions that are optimised for best performance on AVR.
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// The most efficient rotations are where the number of bits is 1 or a
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// multiple of 8, so we compose the efficient rotations to produce all
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// other rotation counts of interest.
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#if defined(__AVR__)
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#define CRYPTO_ROTATE32_COMPOSED 1
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#define CRYPTO_ROTATE64_COMPOSED 0
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#else
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#define CRYPTO_ROTATE32_COMPOSED 0
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#define CRYPTO_ROTATE64_COMPOSED 0
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#endif
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#if CRYPTO_ROTATE32_COMPOSED
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// Rotation macros for 32-bit arguments.
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// Generic left rotate - best performance when "bits" is 1 or a multiple of 8.
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#define leftRotate(a, bits) \
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(__extension__ ({ \
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uint32_t _temp = (a); \
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(_temp << (bits)) | (_temp >> (32 - (bits))); \
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}))
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// Generic right rotate - best performance when "bits" is 1 or a multiple of 8.
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#define rightRotate(a, bits) \
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(__extension__ ({ \
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uint32_t _temp = (a); \
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(_temp >> (bits)) | (_temp << (32 - (bits))); \
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}))
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// Left rotate by 1.
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#define leftRotate1(a) (leftRotate((a), 1))
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// Left rotate by 2.
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#define leftRotate2(a) (leftRotate(leftRotate((a), 1), 1))
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// Left rotate by 3.
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#define leftRotate3(a) (leftRotate(leftRotate(leftRotate((a), 1), 1), 1))
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// Left rotate by 4.
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#define leftRotate4(a) (leftRotate(leftRotate(leftRotate(leftRotate((a), 1), 1), 1), 1))
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// Left rotate by 5: Rotate left by 8, then right by 3.
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#define leftRotate5(a) (rightRotate(rightRotate(rightRotate(leftRotate((a), 8), 1), 1), 1))
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// Left rotate by 6: Rotate left by 8, then right by 2.
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#define leftRotate6(a) (rightRotate(rightRotate(leftRotate((a), 8), 1), 1))
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// Left rotate by 7: Rotate left by 8, then right by 1.
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#define leftRotate7(a) (rightRotate(leftRotate((a), 8), 1))
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// Left rotate by 8.
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#define leftRotate8(a) (leftRotate((a), 8))
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// Left rotate by 9: Rotate left by 8, then left by 1.
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#define leftRotate9(a) (leftRotate(leftRotate((a), 8), 1))
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// Left rotate by 10: Rotate left by 8, then left by 2.
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#define leftRotate10(a) (leftRotate(leftRotate(leftRotate((a), 8), 1), 1))
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// Left rotate by 11: Rotate left by 8, then left by 3.
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#define leftRotate11(a) (leftRotate(leftRotate(leftRotate(leftRotate((a), 8), 1), 1), 1))
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// Left rotate by 12: Rotate left by 16, then right by 4.
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#define leftRotate12(a) (rightRotate(rightRotate(rightRotate(rightRotate(leftRotate((a), 16), 1), 1), 1), 1))
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// Left rotate by 13: Rotate left by 16, then right by 3.
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#define leftRotate13(a) (rightRotate(rightRotate(rightRotate(leftRotate((a), 16), 1), 1), 1))
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// Left rotate by 14: Rotate left by 16, then right by 2.
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#define leftRotate14(a) (rightRotate(rightRotate(leftRotate((a), 16), 1), 1))
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// Left rotate by 15: Rotate left by 16, then right by 1.
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#define leftRotate15(a) (rightRotate(leftRotate((a), 16), 1))
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// Left rotate by 16.
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#define leftRotate16(a) (leftRotate((a), 16))
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// Left rotate by 17: Rotate left by 16, then left by 1.
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#define leftRotate17(a) (leftRotate(leftRotate((a), 16), 1))
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// Left rotate by 18: Rotate left by 16, then left by 2.
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#define leftRotate18(a) (leftRotate(leftRotate(leftRotate((a), 16), 1), 1))
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// Left rotate by 19: Rotate left by 16, then left by 3.
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#define leftRotate19(a) (leftRotate(leftRotate(leftRotate(leftRotate((a), 16), 1), 1), 1))
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// Left rotate by 20: Rotate left by 16, then left by 4.
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#define leftRotate20(a) (leftRotate(leftRotate(leftRotate(leftRotate(leftRotate((a), 16), 1), 1), 1), 1))
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// Left rotate by 21: Rotate left by 24, then right by 3.
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#define leftRotate21(a) (rightRotate(rightRotate(rightRotate(leftRotate((a), 24), 1), 1), 1))
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// Left rotate by 22: Rotate left by 24, then right by 2.
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#define leftRotate22(a) (rightRotate(rightRotate(leftRotate((a), 24), 1), 1))
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// Left rotate by 23: Rotate left by 24, then right by 1.
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#define leftRotate23(a) (rightRotate(leftRotate((a), 24), 1))
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// Left rotate by 24.
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#define leftRotate24(a) (leftRotate((a), 24))
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// Left rotate by 25: Rotate left by 24, then left by 1.
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#define leftRotate25(a) (leftRotate(leftRotate((a), 24), 1))
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// Left rotate by 26: Rotate left by 24, then left by 2.
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#define leftRotate26(a) (leftRotate(leftRotate(leftRotate((a), 24), 1), 1))
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// Left rotate by 27: Rotate left by 24, then left by 3.
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#define leftRotate27(a) (leftRotate(leftRotate(leftRotate(leftRotate((a), 24), 1), 1), 1))
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// Left rotate by 28: Rotate right by 4.
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#define leftRotate28(a) (rightRotate(rightRotate(rightRotate(rightRotate((a), 1), 1), 1), 1))
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// Left rotate by 29: Rotate right by 3.
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#define leftRotate29(a) (rightRotate(rightRotate(rightRotate((a), 1), 1), 1))
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// Left rotate by 30: Rotate right by 2.
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#define leftRotate30(a) (rightRotate(rightRotate((a), 1), 1))
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// Left rotate by 31: Rotate right by 1.
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#define leftRotate31(a) (rightRotate((a), 1))
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// Define the 32-bit right rotations in terms of left rotations.
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#define rightRotate1(a) (leftRotate31((a)))
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#define rightRotate2(a) (leftRotate30((a)))
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#define rightRotate3(a) (leftRotate29((a)))
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#define rightRotate4(a) (leftRotate28((a)))
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#define rightRotate5(a) (leftRotate27((a)))
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#define rightRotate6(a) (leftRotate26((a)))
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#define rightRotate7(a) (leftRotate25((a)))
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#define rightRotate8(a) (leftRotate24((a)))
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#define rightRotate9(a) (leftRotate23((a)))
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#define rightRotate10(a) (leftRotate22((a)))
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#define rightRotate11(a) (leftRotate21((a)))
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#define rightRotate12(a) (leftRotate20((a)))
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#define rightRotate13(a) (leftRotate19((a)))
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#define rightRotate14(a) (leftRotate18((a)))
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#define rightRotate15(a) (leftRotate17((a)))
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#define rightRotate16(a) (leftRotate16((a)))
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#define rightRotate17(a) (leftRotate15((a)))
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#define rightRotate18(a) (leftRotate14((a)))
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#define rightRotate19(a) (leftRotate13((a)))
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#define rightRotate20(a) (leftRotate12((a)))
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#define rightRotate21(a) (leftRotate11((a)))
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#define rightRotate22(a) (leftRotate10((a)))
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#define rightRotate23(a) (leftRotate9((a)))
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#define rightRotate24(a) (leftRotate8((a)))
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#define rightRotate25(a) (leftRotate7((a)))
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#define rightRotate26(a) (leftRotate6((a)))
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#define rightRotate27(a) (leftRotate5((a)))
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#define rightRotate28(a) (leftRotate4((a)))
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#define rightRotate29(a) (leftRotate3((a)))
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#define rightRotate30(a) (leftRotate2((a)))
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#define rightRotate31(a) (leftRotate1((a)))
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#else // !CRYPTO_ROTATE32_COMPOSED
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// Generic rotation functions. All bit shifts are considered to have
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// similar performance. Usually true of 32-bit and higher platforms.
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// Rotation macros for 32-bit arguments.
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// Generic left rotate.
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#define leftRotate(a, bits) \
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(__extension__ ({ \
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uint32_t _temp = (a); \
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(_temp << (bits)) | (_temp >> (32 - (bits))); \
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}))
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// Generic right rotate.
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#define rightRotate(a, bits) \
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(__extension__ ({ \
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uint32_t _temp = (a); \
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(_temp >> (bits)) | (_temp << (32 - (bits))); \
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}))
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// Left rotate by a specific number of bits.
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#define leftRotate1(a) (leftRotate((a), 1))
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#define leftRotate2(a) (leftRotate((a), 2))
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#define leftRotate3(a) (leftRotate((a), 3))
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#define leftRotate4(a) (leftRotate((a), 4))
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#define leftRotate5(a) (leftRotate((a), 5))
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#define leftRotate6(a) (leftRotate((a), 6))
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#define leftRotate7(a) (leftRotate((a), 7))
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#define leftRotate8(a) (leftRotate((a), 8))
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#define leftRotate9(a) (leftRotate((a), 9))
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#define leftRotate10(a) (leftRotate((a), 10))
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#define leftRotate11(a) (leftRotate((a), 11))
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#define leftRotate12(a) (leftRotate((a), 12))
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#define leftRotate13(a) (leftRotate((a), 13))
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#define leftRotate14(a) (leftRotate((a), 14))
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#define leftRotate15(a) (leftRotate((a), 15))
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#define leftRotate16(a) (leftRotate((a), 16))
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#define leftRotate17(a) (leftRotate((a), 17))
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#define leftRotate18(a) (leftRotate((a), 18))
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#define leftRotate19(a) (leftRotate((a), 19))
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#define leftRotate20(a) (leftRotate((a), 20))
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#define leftRotate21(a) (leftRotate((a), 21))
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#define leftRotate22(a) (leftRotate((a), 22))
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#define leftRotate23(a) (leftRotate((a), 23))
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#define leftRotate24(a) (leftRotate((a), 24))
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#define leftRotate25(a) (leftRotate((a), 25))
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#define leftRotate26(a) (leftRotate((a), 26))
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#define leftRotate27(a) (leftRotate((a), 27))
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#define leftRotate28(a) (leftRotate((a), 28))
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#define leftRotate29(a) (leftRotate((a), 29))
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#define leftRotate30(a) (leftRotate((a), 30))
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#define leftRotate31(a) (leftRotate((a), 31))
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// Right rotate by a specific number of bits.
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#define rightRotate1(a) (rightRotate((a), 1))
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#define rightRotate2(a) (rightRotate((a), 2))
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#define rightRotate3(a) (rightRotate((a), 3))
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#define rightRotate4(a) (rightRotate((a), 4))
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#define rightRotate5(a) (rightRotate((a), 5))
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#define rightRotate6(a) (rightRotate((a), 6))
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#define rightRotate7(a) (rightRotate((a), 7))
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#define rightRotate8(a) (rightRotate((a), 8))
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#define rightRotate9(a) (rightRotate((a), 9))
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#define rightRotate10(a) (rightRotate((a), 10))
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#define rightRotate11(a) (rightRotate((a), 11))
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#define rightRotate12(a) (rightRotate((a), 12))
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#define rightRotate13(a) (rightRotate((a), 13))
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#define rightRotate14(a) (rightRotate((a), 14))
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#define rightRotate15(a) (rightRotate((a), 15))
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#define rightRotate16(a) (rightRotate((a), 16))
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#define rightRotate17(a) (rightRotate((a), 17))
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#define rightRotate18(a) (rightRotate((a), 18))
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#define rightRotate19(a) (rightRotate((a), 19))
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#define rightRotate20(a) (rightRotate((a), 20))
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#define rightRotate21(a) (rightRotate((a), 21))
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#define rightRotate22(a) (rightRotate((a), 22))
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#define rightRotate23(a) (rightRotate((a), 23))
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#define rightRotate24(a) (rightRotate((a), 24))
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#define rightRotate25(a) (rightRotate((a), 25))
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#define rightRotate26(a) (rightRotate((a), 26))
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#define rightRotate27(a) (rightRotate((a), 27))
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#define rightRotate28(a) (rightRotate((a), 28))
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#define rightRotate29(a) (rightRotate((a), 29))
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#define rightRotate30(a) (rightRotate((a), 30))
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#define rightRotate31(a) (rightRotate((a), 31))
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#endif // !CRYPTO_ROTATE32_COMPOSED
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#if CRYPTO_ROTATE64_COMPOSED
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// Rotation macros for 64-bit arguments.
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// Generic left rotate - best performance when "bits" is 1 or a multiple of 8.
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#define leftRotate_64(a, bits) \
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(__extension__ ({ \
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uint64_t _temp = (a); \
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(_temp << (bits)) | (_temp >> (64 - (bits))); \
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}))
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// Generic right rotate - best performance when "bits" is 1 or a multiple of 8.
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#define rightRotate_64(a, bits) \
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(__extension__ ({ \
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uint64_t _temp = (a); \
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(_temp >> (bits)) | (_temp << (64 - (bits))); \
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}))
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// Left rotate by 1.
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#define leftRotate1_64(a) (leftRotate_64((a), 1))
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// Left rotate by 2.
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#define leftRotate2_64(a) (leftRotate_64(leftRotate_64((a), 1), 1))
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// Left rotate by 3.
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#define leftRotate3_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 1), 1), 1))
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// Left rotate by 4.
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#define leftRotate4_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 1), 1), 1), 1))
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// Left rotate by 5: Rotate left by 8, then right by 3.
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#define leftRotate5_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 8), 1), 1), 1))
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// Left rotate by 6: Rotate left by 8, then right by 2.
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#define leftRotate6_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 8), 1), 1))
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// Left rotate by 7: Rotate left by 8, then right by 1.
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#define leftRotate7_64(a) (rightRotate_64(leftRotate_64((a), 8), 1))
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// Left rotate by 8.
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#define leftRotate8_64(a) (leftRotate_64((a), 8))
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// Left rotate by 9: Rotate left by 8, then left by 1.
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#define leftRotate9_64(a) (leftRotate_64(leftRotate_64((a), 8), 1))
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// Left rotate by 10: Rotate left by 8, then left by 2.
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#define leftRotate10_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 8), 1), 1))
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// Left rotate by 11: Rotate left by 8, then left by 3.
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#define leftRotate11_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 8), 1), 1), 1))
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// Left rotate by 12: Rotate left by 16, then right by 4.
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#define leftRotate12_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 16), 1), 1), 1), 1))
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// Left rotate by 13: Rotate left by 16, then right by 3.
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#define leftRotate13_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 16), 1), 1), 1))
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// Left rotate by 14: Rotate left by 16, then right by 2.
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#define leftRotate14_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 16), 1), 1))
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// Left rotate by 15: Rotate left by 16, then right by 1.
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#define leftRotate15_64(a) (rightRotate_64(leftRotate_64((a), 16), 1))
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// Left rotate by 16.
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#define leftRotate16_64(a) (leftRotate_64((a), 16))
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// Left rotate by 17: Rotate left by 16, then left by 1.
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#define leftRotate17_64(a) (leftRotate_64(leftRotate_64((a), 16), 1))
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// Left rotate by 18: Rotate left by 16, then left by 2.
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#define leftRotate18_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 16), 1), 1))
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// Left rotate by 19: Rotate left by 16, then left by 3.
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#define leftRotate19_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 16), 1), 1), 1))
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// Left rotate by 20: Rotate left by 16, then left by 4.
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#define leftRotate20_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 16), 1), 1), 1), 1))
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// Left rotate by 21: Rotate left by 24, then right by 3.
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#define leftRotate21_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 24), 1), 1), 1))
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// Left rotate by 22: Rotate left by 24, then right by 2.
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#define leftRotate22_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 24), 1), 1))
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// Left rotate by 23: Rotate left by 24, then right by 1.
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#define leftRotate23_64(a) (rightRotate_64(leftRotate_64((a), 24), 1))
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// Left rotate by 24.
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#define leftRotate24_64(a) (leftRotate_64((a), 24))
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// Left rotate by 25: Rotate left by 24, then left by 1.
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#define leftRotate25_64(a) (leftRotate_64(leftRotate_64((a), 24), 1))
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// Left rotate by 26: Rotate left by 24, then left by 2.
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#define leftRotate26_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 24), 1), 1))
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// Left rotate by 27: Rotate left by 24, then left by 3.
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#define leftRotate27_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 24), 1), 1), 1))
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// Left rotate by 28: Rotate left by 24, then left by 4.
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#define leftRotate28_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 24), 1), 1), 1), 1))
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// Left rotate by 29: Rotate left by 32, then right by 3.
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#define leftRotate29_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 32), 1), 1), 1))
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// Left rotate by 30: Rotate left by 32, then right by 2.
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#define leftRotate30_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 32), 1), 1))
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// Left rotate by 31: Rotate left by 32, then right by 1.
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#define leftRotate31_64(a) (rightRotate_64(leftRotate_64((a), 32), 1))
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// Left rotate by 32.
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#define leftRotate32_64(a) (leftRotate_64((a), 32))
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// Left rotate by 33: Rotate left by 32, then left by 1.
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#define leftRotate33_64(a) (leftRotate_64(leftRotate_64((a), 32), 1))
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// Left rotate by 34: Rotate left by 32, then left by 2.
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#define leftRotate34_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 32), 1), 1))
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// Left rotate by 35: Rotate left by 32, then left by 3.
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#define leftRotate35_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 32), 1), 1), 1))
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// Left rotate by 36: Rotate left by 32, then left by 4.
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#define leftRotate36_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 32), 1), 1), 1), 1))
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// Left rotate by 37: Rotate left by 40, then right by 3.
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#define leftRotate37_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 40), 1), 1), 1))
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// Left rotate by 38: Rotate left by 40, then right by 2.
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#define leftRotate38_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 40), 1), 1))
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// Left rotate by 39: Rotate left by 40, then right by 1.
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#define leftRotate39_64(a) (rightRotate_64(leftRotate_64((a), 40), 1))
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// Left rotate by 40.
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#define leftRotate40_64(a) (leftRotate_64((a), 40))
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// Left rotate by 41: Rotate left by 40, then left by 1.
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#define leftRotate41_64(a) (leftRotate_64(leftRotate_64((a), 40), 1))
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// Left rotate by 42: Rotate left by 40, then left by 2.
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#define leftRotate42_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 40), 1), 1))
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// Left rotate by 43: Rotate left by 40, then left by 3.
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#define leftRotate43_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 40), 1), 1), 1))
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// Left rotate by 44: Rotate left by 40, then left by 4.
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#define leftRotate44_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 40), 1), 1), 1), 1))
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// Left rotate by 45: Rotate left by 48, then right by 3.
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#define leftRotate45_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 48), 1), 1), 1))
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// Left rotate by 46: Rotate left by 48, then right by 2.
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#define leftRotate46_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 48), 1), 1))
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// Left rotate by 47: Rotate left by 48, then right by 1.
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#define leftRotate47_64(a) (rightRotate_64(leftRotate_64((a), 48), 1))
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// Left rotate by 48.
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#define leftRotate48_64(a) (leftRotate_64((a), 48))
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// Left rotate by 49: Rotate left by 48, then left by 1.
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#define leftRotate49_64(a) (leftRotate_64(leftRotate_64((a), 48), 1))
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// Left rotate by 50: Rotate left by 48, then left by 2.
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#define leftRotate50_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 48), 1), 1))
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// Left rotate by 51: Rotate left by 48, then left by 3.
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#define leftRotate51_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 48), 1), 1), 1))
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// Left rotate by 52: Rotate left by 48, then left by 4.
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#define leftRotate52_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 48), 1), 1), 1), 1))
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// Left rotate by 53: Rotate left by 56, then right by 3.
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#define leftRotate53_64(a) (rightRotate_64(rightRotate_64(rightRotate_64(leftRotate_64((a), 56), 1), 1), 1))
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// Left rotate by 54: Rotate left by 56, then right by 2.
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#define leftRotate54_64(a) (rightRotate_64(rightRotate_64(leftRotate_64((a), 56), 1), 1))
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// Left rotate by 55: Rotate left by 56, then right by 1.
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#define leftRotate55_64(a) (rightRotate_64(leftRotate_64((a), 56), 1))
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// Left rotate by 56.
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#define leftRotate56_64(a) (leftRotate_64((a), 56))
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// Left rotate by 57: Rotate left by 56, then left by 1.
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#define leftRotate57_64(a) (leftRotate_64(leftRotate_64((a), 56), 1))
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// Left rotate by 58: Rotate left by 56, then left by 2.
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#define leftRotate58_64(a) (leftRotate_64(leftRotate_64(leftRotate_64((a), 56), 1), 1))
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// Left rotate by 59: Rotate left by 56, then left by 3.
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#define leftRotate59_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 56), 1), 1), 1))
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// Left rotate by 60: Rotate left by 60, then left by 4.
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#define leftRotate60_64(a) (leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64(leftRotate_64((a), 56), 1), 1), 1), 1))
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// Left rotate by 61: Rotate right by 3.
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#define leftRotate61_64(a) (rightRotate_64(rightRotate_64(rightRotate_64((a), 1), 1), 1))
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// Left rotate by 62: Rotate right by 2.
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#define leftRotate62_64(a) (rightRotate_64(rightRotate_64((a), 1), 1))
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// Left rotate by 63: Rotate right by 1.
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#define leftRotate63_64(a) (rightRotate_64((a), 1))
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// Define the 64-bit right rotations in terms of left rotations.
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#define rightRotate1_64(a) (leftRotate63_64((a)))
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#define rightRotate2_64(a) (leftRotate62_64((a)))
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#define rightRotate3_64(a) (leftRotate61_64((a)))
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#define rightRotate4_64(a) (leftRotate60_64((a)))
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#define rightRotate5_64(a) (leftRotate59_64((a)))
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#define rightRotate6_64(a) (leftRotate58_64((a)))
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#define rightRotate7_64(a) (leftRotate57_64((a)))
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#define rightRotate8_64(a) (leftRotate56_64((a)))
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#define rightRotate9_64(a) (leftRotate55_64((a)))
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#define rightRotate10_64(a) (leftRotate54_64((a)))
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#define rightRotate11_64(a) (leftRotate53_64((a)))
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#define rightRotate12_64(a) (leftRotate52_64((a)))
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#define rightRotate13_64(a) (leftRotate51_64((a)))
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#define rightRotate14_64(a) (leftRotate50_64((a)))
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#define rightRotate15_64(a) (leftRotate49_64((a)))
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#define rightRotate16_64(a) (leftRotate48_64((a)))
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#define rightRotate17_64(a) (leftRotate47_64((a)))
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#define rightRotate18_64(a) (leftRotate46_64((a)))
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#define rightRotate19_64(a) (leftRotate45_64((a)))
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#define rightRotate20_64(a) (leftRotate44_64((a)))
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#define rightRotate21_64(a) (leftRotate43_64((a)))
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#define rightRotate22_64(a) (leftRotate42_64((a)))
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#define rightRotate23_64(a) (leftRotate41_64((a)))
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#define rightRotate24_64(a) (leftRotate40_64((a)))
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#define rightRotate25_64(a) (leftRotate39_64((a)))
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#define rightRotate26_64(a) (leftRotate38_64((a)))
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#define rightRotate27_64(a) (leftRotate37_64((a)))
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#define rightRotate28_64(a) (leftRotate36_64((a)))
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#define rightRotate29_64(a) (leftRotate35_64((a)))
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#define rightRotate30_64(a) (leftRotate34_64((a)))
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#define rightRotate31_64(a) (leftRotate33_64((a)))
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#define rightRotate32_64(a) (leftRotate32_64((a)))
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#define rightRotate33_64(a) (leftRotate31_64((a)))
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#define rightRotate34_64(a) (leftRotate30_64((a)))
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#define rightRotate35_64(a) (leftRotate29_64((a)))
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#define rightRotate36_64(a) (leftRotate28_64((a)))
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#define rightRotate37_64(a) (leftRotate27_64((a)))
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#define rightRotate38_64(a) (leftRotate26_64((a)))
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#define rightRotate39_64(a) (leftRotate25_64((a)))
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#define rightRotate40_64(a) (leftRotate24_64((a)))
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#define rightRotate41_64(a) (leftRotate23_64((a)))
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#define rightRotate42_64(a) (leftRotate22_64((a)))
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#define rightRotate43_64(a) (leftRotate21_64((a)))
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#define rightRotate44_64(a) (leftRotate20_64((a)))
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#define rightRotate45_64(a) (leftRotate19_64((a)))
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#define rightRotate46_64(a) (leftRotate18_64((a)))
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#define rightRotate47_64(a) (leftRotate17_64((a)))
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#define rightRotate48_64(a) (leftRotate16_64((a)))
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#define rightRotate49_64(a) (leftRotate15_64((a)))
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#define rightRotate50_64(a) (leftRotate14_64((a)))
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#define rightRotate51_64(a) (leftRotate13_64((a)))
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#define rightRotate52_64(a) (leftRotate12_64((a)))
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#define rightRotate53_64(a) (leftRotate11_64((a)))
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#define rightRotate54_64(a) (leftRotate10_64((a)))
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#define rightRotate55_64(a) (leftRotate9_64((a)))
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#define rightRotate56_64(a) (leftRotate8_64((a)))
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#define rightRotate57_64(a) (leftRotate7_64((a)))
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#define rightRotate58_64(a) (leftRotate6_64((a)))
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#define rightRotate59_64(a) (leftRotate5_64((a)))
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#define rightRotate60_64(a) (leftRotate4_64((a)))
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#define rightRotate61_64(a) (leftRotate3_64((a)))
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#define rightRotate62_64(a) (leftRotate2_64((a)))
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#define rightRotate63_64(a) (leftRotate1_64((a)))
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#else // !CRYPTO_ROTATE64_COMPOSED
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// Rotation macros for 64-bit arguments.
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// Generic left rotate.
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#define leftRotate_64(a, bits) \
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(__extension__ ({ \
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uint64_t _temp = (a); \
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(_temp << (bits)) | (_temp >> (64 - (bits))); \
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}))
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// Generic right rotate.
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#define rightRotate_64(a, bits) \
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(__extension__ ({ \
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uint64_t _temp = (a); \
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(_temp >> (bits)) | (_temp << (64 - (bits))); \
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}))
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// Left rotate by a specific number of bits.
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#define leftRotate1_64(a) (leftRotate_64((a), 1))
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#define leftRotate2_64(a) (leftRotate_64((a), 2))
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#define leftRotate3_64(a) (leftRotate_64((a), 3))
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#define leftRotate4_64(a) (leftRotate_64((a), 4))
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#define leftRotate5_64(a) (leftRotate_64((a), 5))
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#define leftRotate6_64(a) (leftRotate_64((a), 6))
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#define leftRotate7_64(a) (leftRotate_64((a), 7))
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#define leftRotate8_64(a) (leftRotate_64((a), 8))
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#define leftRotate9_64(a) (leftRotate_64((a), 9))
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#define leftRotate10_64(a) (leftRotate_64((a), 10))
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#define leftRotate11_64(a) (leftRotate_64((a), 11))
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#define leftRotate12_64(a) (leftRotate_64((a), 12))
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#define leftRotate13_64(a) (leftRotate_64((a), 13))
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#define leftRotate14_64(a) (leftRotate_64((a), 14))
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#define leftRotate15_64(a) (leftRotate_64((a), 15))
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#define leftRotate16_64(a) (leftRotate_64((a), 16))
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#define leftRotate17_64(a) (leftRotate_64((a), 17))
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#define leftRotate18_64(a) (leftRotate_64((a), 18))
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#define leftRotate19_64(a) (leftRotate_64((a), 19))
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#define leftRotate20_64(a) (leftRotate_64((a), 20))
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#define leftRotate21_64(a) (leftRotate_64((a), 21))
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#define leftRotate22_64(a) (leftRotate_64((a), 22))
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#define leftRotate23_64(a) (leftRotate_64((a), 23))
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#define leftRotate24_64(a) (leftRotate_64((a), 24))
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#define leftRotate25_64(a) (leftRotate_64((a), 25))
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#define leftRotate26_64(a) (leftRotate_64((a), 26))
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#define leftRotate27_64(a) (leftRotate_64((a), 27))
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#define leftRotate28_64(a) (leftRotate_64((a), 28))
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#define leftRotate29_64(a) (leftRotate_64((a), 29))
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#define leftRotate30_64(a) (leftRotate_64((a), 30))
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#define leftRotate31_64(a) (leftRotate_64((a), 31))
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#define leftRotate32_64(a) (leftRotate_64((a), 32))
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#define leftRotate33_64(a) (leftRotate_64((a), 33))
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#define leftRotate34_64(a) (leftRotate_64((a), 34))
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#define leftRotate35_64(a) (leftRotate_64((a), 35))
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#define leftRotate36_64(a) (leftRotate_64((a), 36))
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#define leftRotate37_64(a) (leftRotate_64((a), 37))
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#define leftRotate38_64(a) (leftRotate_64((a), 38))
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#define leftRotate39_64(a) (leftRotate_64((a), 39))
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#define leftRotate40_64(a) (leftRotate_64((a), 40))
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#define leftRotate41_64(a) (leftRotate_64((a), 41))
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#define leftRotate42_64(a) (leftRotate_64((a), 42))
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#define leftRotate43_64(a) (leftRotate_64((a), 43))
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#define leftRotate44_64(a) (leftRotate_64((a), 44))
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#define leftRotate45_64(a) (leftRotate_64((a), 45))
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#define leftRotate46_64(a) (leftRotate_64((a), 46))
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#define leftRotate47_64(a) (leftRotate_64((a), 47))
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#define leftRotate48_64(a) (leftRotate_64((a), 48))
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#define leftRotate49_64(a) (leftRotate_64((a), 49))
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#define leftRotate50_64(a) (leftRotate_64((a), 50))
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#define leftRotate51_64(a) (leftRotate_64((a), 51))
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#define leftRotate52_64(a) (leftRotate_64((a), 52))
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#define leftRotate53_64(a) (leftRotate_64((a), 53))
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#define leftRotate54_64(a) (leftRotate_64((a), 54))
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#define leftRotate55_64(a) (leftRotate_64((a), 55))
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#define leftRotate56_64(a) (leftRotate_64((a), 56))
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#define leftRotate57_64(a) (leftRotate_64((a), 57))
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#define leftRotate58_64(a) (leftRotate_64((a), 58))
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#define leftRotate59_64(a) (leftRotate_64((a), 59))
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#define leftRotate60_64(a) (leftRotate_64((a), 60))
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#define leftRotate61_64(a) (leftRotate_64((a), 61))
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#define leftRotate62_64(a) (leftRotate_64((a), 62))
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#define leftRotate63_64(a) (leftRotate_64((a), 63))
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// Right rotate by a specific number of bits.
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#define rightRotate1_64(a) (rightRotate_64((a), 1))
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#define rightRotate2_64(a) (rightRotate_64((a), 2))
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#define rightRotate3_64(a) (rightRotate_64((a), 3))
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#define rightRotate4_64(a) (rightRotate_64((a), 4))
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#define rightRotate5_64(a) (rightRotate_64((a), 5))
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#define rightRotate6_64(a) (rightRotate_64((a), 6))
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#define rightRotate7_64(a) (rightRotate_64((a), 7))
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#define rightRotate8_64(a) (rightRotate_64((a), 8))
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#define rightRotate9_64(a) (rightRotate_64((a), 9))
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#define rightRotate10_64(a) (rightRotate_64((a), 10))
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#define rightRotate11_64(a) (rightRotate_64((a), 11))
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#define rightRotate12_64(a) (rightRotate_64((a), 12))
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#define rightRotate13_64(a) (rightRotate_64((a), 13))
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#define rightRotate14_64(a) (rightRotate_64((a), 14))
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#define rightRotate15_64(a) (rightRotate_64((a), 15))
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#define rightRotate16_64(a) (rightRotate_64((a), 16))
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#define rightRotate17_64(a) (rightRotate_64((a), 17))
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#define rightRotate18_64(a) (rightRotate_64((a), 18))
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#define rightRotate19_64(a) (rightRotate_64((a), 19))
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#define rightRotate20_64(a) (rightRotate_64((a), 20))
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#define rightRotate21_64(a) (rightRotate_64((a), 21))
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#define rightRotate22_64(a) (rightRotate_64((a), 22))
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#define rightRotate23_64(a) (rightRotate_64((a), 23))
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#define rightRotate24_64(a) (rightRotate_64((a), 24))
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#define rightRotate25_64(a) (rightRotate_64((a), 25))
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#define rightRotate26_64(a) (rightRotate_64((a), 26))
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#define rightRotate27_64(a) (rightRotate_64((a), 27))
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#define rightRotate28_64(a) (rightRotate_64((a), 28))
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#define rightRotate29_64(a) (rightRotate_64((a), 29))
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#define rightRotate30_64(a) (rightRotate_64((a), 30))
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#define rightRotate31_64(a) (rightRotate_64((a), 31))
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#define rightRotate32_64(a) (rightRotate_64((a), 32))
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#define rightRotate33_64(a) (rightRotate_64((a), 33))
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#define rightRotate34_64(a) (rightRotate_64((a), 34))
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#define rightRotate35_64(a) (rightRotate_64((a), 35))
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#define rightRotate36_64(a) (rightRotate_64((a), 36))
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#define rightRotate37_64(a) (rightRotate_64((a), 37))
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#define rightRotate38_64(a) (rightRotate_64((a), 38))
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#define rightRotate39_64(a) (rightRotate_64((a), 39))
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#define rightRotate40_64(a) (rightRotate_64((a), 40))
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#define rightRotate41_64(a) (rightRotate_64((a), 41))
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#define rightRotate42_64(a) (rightRotate_64((a), 42))
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#define rightRotate43_64(a) (rightRotate_64((a), 43))
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#define rightRotate44_64(a) (rightRotate_64((a), 44))
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#define rightRotate45_64(a) (rightRotate_64((a), 45))
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#define rightRotate46_64(a) (rightRotate_64((a), 46))
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#define rightRotate47_64(a) (rightRotate_64((a), 47))
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#define rightRotate48_64(a) (rightRotate_64((a), 48))
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#define rightRotate49_64(a) (rightRotate_64((a), 49))
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#define rightRotate50_64(a) (rightRotate_64((a), 50))
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#define rightRotate51_64(a) (rightRotate_64((a), 51))
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#define rightRotate52_64(a) (rightRotate_64((a), 52))
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#define rightRotate53_64(a) (rightRotate_64((a), 53))
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#define rightRotate54_64(a) (rightRotate_64((a), 54))
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#define rightRotate55_64(a) (rightRotate_64((a), 55))
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#define rightRotate56_64(a) (rightRotate_64((a), 56))
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#define rightRotate57_64(a) (rightRotate_64((a), 57))
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#define rightRotate58_64(a) (rightRotate_64((a), 58))
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#define rightRotate59_64(a) (rightRotate_64((a), 59))
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#define rightRotate60_64(a) (rightRotate_64((a), 60))
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#define rightRotate61_64(a) (rightRotate_64((a), 61))
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#define rightRotate62_64(a) (rightRotate_64((a), 62))
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#define rightRotate63_64(a) (rightRotate_64((a), 63))
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#endif // !CRYPTO_ROTATE64_COMPOSED
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#endif
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