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Invert (1-y) just before the multiplication by (1+y) for readability

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This commit is contained in:
Frank Denis 2018-07-21 00:42:31 +02:00
parent 91d9051bce
commit d25d6ce7fb
1 changed files with 1 additions and 1 deletions
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src/libsodium/crypto_sign/ed25519/ref10/keypair.c
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@ -61,9 +61,9 @@ crypto_sign_ed25519_pk_to_curve25519(unsigned char *curve25519_pk,
} }
fe25519_1(one_minus_y); fe25519_1(one_minus_y);
fe25519_sub(one_minus_y, one_minus_y, A.Y); fe25519_sub(one_minus_y, one_minus_y, A.Y);
fe25519_invert(one_minus_y, one_minus_y);
fe25519_1(x); fe25519_1(x);
fe25519_add(x, x, A.Y); fe25519_add(x, x, A.Y);
fe25519_invert(one_minus_y, one_minus_y);
fe25519_mul(x, x, one_minus_y); fe25519_mul(x, x, one_minus_y);
fe25519_tobytes(curve25519_pk, x); fe25519_tobytes(curve25519_pk, x);