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57 lines
1.9 KiB
57 lines
1.9 KiB
9 years ago
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#ifndef FE_H
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#define FE_H
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#include "crypto_int32.h"
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typedef crypto_int32 fe[10];
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/*
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fe means field element.
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Here the field is \Z/(2^255-19).
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An element t, entries t[0]...t[9], represents the integer
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t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
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Bounds on each t[i] vary depending on context.
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*/
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#define fe_frombytes crypto_sign_ed25519_ref10_fe_frombytes
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#define fe_tobytes crypto_sign_ed25519_ref10_fe_tobytes
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#define fe_copy crypto_sign_ed25519_ref10_fe_copy
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#define fe_isnonzero crypto_sign_ed25519_ref10_fe_isnonzero
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#define fe_isnegative crypto_sign_ed25519_ref10_fe_isnegative
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#define fe_0 crypto_sign_ed25519_ref10_fe_0
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#define fe_1 crypto_sign_ed25519_ref10_fe_1
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#define fe_cswap crypto_sign_ed25519_ref10_fe_cswap
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#define fe_cmov crypto_sign_ed25519_ref10_fe_cmov
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#define fe_add crypto_sign_ed25519_ref10_fe_add
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#define fe_sub crypto_sign_ed25519_ref10_fe_sub
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#define fe_neg crypto_sign_ed25519_ref10_fe_neg
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#define fe_mul crypto_sign_ed25519_ref10_fe_mul
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#define fe_sq crypto_sign_ed25519_ref10_fe_sq
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#define fe_sq2 crypto_sign_ed25519_ref10_fe_sq2
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#define fe_mul121666 crypto_sign_ed25519_ref10_fe_mul121666
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#define fe_invert crypto_sign_ed25519_ref10_fe_invert
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#define fe_pow22523 crypto_sign_ed25519_ref10_fe_pow22523
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extern void fe_frombytes(fe,const unsigned char *);
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extern void fe_tobytes(unsigned char *,const fe);
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extern void fe_copy(fe,const fe);
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extern int fe_isnonzero(const fe);
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extern int fe_isnegative(const fe);
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extern void fe_0(fe);
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extern void fe_1(fe);
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extern void fe_cswap(fe,fe,unsigned int);
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extern void fe_cmov(fe,const fe,unsigned int);
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extern void fe_add(fe,const fe,const fe);
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extern void fe_sub(fe,const fe,const fe);
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extern void fe_neg(fe,const fe);
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extern void fe_mul(fe,const fe,const fe);
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extern void fe_sq(fe,const fe);
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extern void fe_sq2(fe,const fe);
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extern void fe_mul121666(fe,const fe);
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extern void fe_invert(fe,const fe);
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extern void fe_pow22523(fe,const fe);
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#endif
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