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Diffstat (limited to 'src/ge.h')
-rw-r--r-- | src/ge.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/ge.h b/src/ge.h deleted file mode 100644 index 17fde2d..0000000 --- a/src/ge.h +++ /dev/null @@ -1,74 +0,0 @@ -#ifndef GE_H -#define GE_H - -#include "fe.h" - - -/* -ge means group element. - -Here the group is the set of pairs (x,y) of field elements (see fe.h) -satisfying -x^2 + y^2 = 1 + d x^2y^2 -where d = -121665/121666. - -Representations: - ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z - ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT - ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T - ge_precomp (Duif): (y+x,y-x,2dxy) -*/ - -typedef struct { - fe X; - fe Y; - fe Z; -} ge_p2; - -typedef struct { - fe X; - fe Y; - fe Z; - fe T; -} ge_p3; - -typedef struct { - fe X; - fe Y; - fe Z; - fe T; -} ge_p1p1; - -typedef struct { - fe yplusx; - fe yminusx; - fe xy2d; -} ge_precomp; - -typedef struct { - fe YplusX; - fe YminusX; - fe Z; - fe T2d; -} ge_cached; - -void ge_p3_tobytes(unsigned char *s, const ge_p3 *h); -void ge_tobytes(unsigned char *s, const ge_p2 *h); -int ge_frombytes_negate_vartime(ge_p3 *h, const unsigned char *s); - -void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q); -void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q); -void ge_double_scalarmult_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b); -void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q); -void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q); -void ge_scalarmult_base(ge_p3 *h, const unsigned char *a); - -void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p); -void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p); -void ge_p2_0(ge_p2 *h); -void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p); -void ge_p3_0(ge_p3 *h); -void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p); -void ge_p3_to_cached(ge_cached *r, const ge_p3 *p); -void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p); - -#endif |