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Diffstat (limited to 'src/c/gf-complete/include/gf_w16.h')
-rw-r--r-- | src/c/gf-complete/include/gf_w16.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/c/gf-complete/include/gf_w16.h b/src/c/gf-complete/include/gf_w16.h new file mode 100644 index 0000000..fb4c0e9 --- /dev/null +++ b/src/c/gf-complete/include/gf_w16.h @@ -0,0 +1,66 @@ +/* + * GF-Complete: A Comprehensive Open Source Library for Galois Field Arithmetic + * James S. Plank, Ethan L. Miller, Kevin M. Greenan, + * Benjamin A. Arnold, John A. Burnum, Adam W. Disney, Allen C. McBride. + * + * gf_w16.h + * + * Defines and data structures for 16-bit Galois fields + */ + +#ifndef GF_COMPLETE_GF_W16_H +#define GF_COMPLETE_GF_W16_H + +#include <stdint.h> + +#define GF_FIELD_WIDTH (16) +#define GF_FIELD_SIZE (1 << GF_FIELD_WIDTH) +#define GF_MULT_GROUP_SIZE GF_FIELD_SIZE-1 + +#define GF_BASE_FIELD_WIDTH (8) +#define GF_BASE_FIELD_SIZE (1 << GF_BASE_FIELD_WIDTH) + +struct gf_w16_logtable_data { + uint16_t log_tbl[GF_FIELD_SIZE]; + uint16_t antilog_tbl[GF_FIELD_SIZE * 2]; + uint16_t inv_tbl[GF_FIELD_SIZE]; + uint16_t *d_antilog; +}; + +struct gf_w16_zero_logtable_data { + int log_tbl[GF_FIELD_SIZE]; + uint16_t _antilog_tbl[GF_FIELD_SIZE * 4]; + uint16_t *antilog_tbl; + uint16_t inv_tbl[GF_FIELD_SIZE]; +}; + +struct gf_w16_lazytable_data { + uint16_t log_tbl[GF_FIELD_SIZE]; + uint16_t antilog_tbl[GF_FIELD_SIZE * 2]; + uint16_t inv_tbl[GF_FIELD_SIZE]; + uint16_t *d_antilog; + uint16_t lazytable[GF_FIELD_SIZE]; +}; + +struct gf_w16_bytwo_data { + uint64_t prim_poly; + uint64_t mask1; + uint64_t mask2; +}; + +struct gf_w16_split_8_8_data { + uint16_t tables[3][256][256]; +}; + +struct gf_w16_group_4_4_data { + uint16_t reduce[16]; + uint16_t shift[16]; +}; + +struct gf_w16_composite_data { + uint8_t *mult_table; +}; + +void gf_w16_neon_split_init(gf_t *gf); + +#endif /* GF_COMPLETE_GF_W16_H */ |