52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
#ifndef _THREEFISH_NOISE_GENERATOR_CIPHER_CORE_HEADER
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#define _THREEFISH_NOISE_GENERATOR_CIPHER_CORE_HEADER
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#ifndef _THREEFISH_NOISE_GENERATOR_CIPHER_DEFINITIONS_HEADER
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#error Threefish definitions header is required! Include tfdef.h first.
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#endif
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#define ROL(x, s, max) ((x << s) | (x >> (-s & (max-1))))
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#define ROR(x, s, max) ((x >> s) | (x << (-s & (max-1))))
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#define KE_MIX(x, y, k1, k2, sl) \
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do { \
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x += k1; \
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y += x; \
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y += k2; \
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x = ROL(x, sl, TFNG_UNIT_BITS); \
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x ^= y; \
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} while (0)
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#define BE_MIX(x, y, sl) \
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do { \
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x += y; \
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y = ROL(y, sl, TFNG_UNIT_BITS); \
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y ^= x; \
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} while (0)
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#define KD_MIX(x, y, k1, k2, sr) \
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do { \
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x ^= y; \
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x = ROR(x, sr, TFNG_UNIT_BITS); \
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y -= x; \
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y -= k2; \
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x -= k1; \
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} while (0)
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#define BD_MIX(x, y, sr) \
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do { \
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y ^= x; \
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y = ROR(y, sr, TFNG_UNIT_BITS); \
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x -= y; \
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} while (0)
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enum tfng_rotations
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{
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TFS_KS01 = 7, TFS_KS02 = 25, TFS_KS03 = 19, TFS_KS04 = 7,
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TFS_BS01 = 5, TFS_BS02 = 27, TFS_BS03 = 26, TFS_BS04 = 6,
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TFS_BS05 = 14, TFS_BS06 = 11, TFS_BS07 = 24, TFS_BS08 = 18,
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TFS_BS09 = 9, TFS_BS10 = 24, TFS_BS11 = 6, TFS_BS12 = 7,
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};
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#endif
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