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Check that add/sub don't enforce the canonical form

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This commit is contained in:
Frank Denis 2017-11-15 15:31:01 +01:00
parent 4fe7f88063
commit 222ab9857c
1 changed files with 7 additions and 0 deletions
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7
test/default/core_ed25519.c
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@ -98,6 +98,13 @@ main(void)
p[0] = 9; p[0] = 9;
assert(crypto_core_ed25519_is_valid_point(p) == 1); assert(crypto_core_ed25519_is_valid_point(p) == 1);
memcpy(p2, p, crypto_core_ed25519_BYTES);
add_P(p2);
crypto_core_ed25519_add(p3, p2, p2);
crypto_core_ed25519_sub(p3, p3, p2);
assert(memcmp(p2, p, crypto_core_ed25519_BYTES) != 0);
assert(memcmp(p3, p, crypto_core_ed25519_BYTES) == 0);
sodium_free(sc); sodium_free(sc);
sodium_free(p3); sodium_free(p3);
sodium_free(p2); sodium_free(p2);