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No need for memmove() when no overlap is possible

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This commit is contained in:
Frank Denis 2017-03-01 14:07:12 +01:00
parent 6349e75304
commit 6ac55a30be
2 changed files with 2 additions and 2 deletions
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2
src/libsodium/crypto_box/curve25519xchacha20poly1305/box_curve25519xchacha20poly1305.c
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@ -21,7 +21,7 @@ crypto_box_curve25519xchacha20poly1305_seed_keypair(unsigned char * pk,
unsigned char hash[64]; unsigned char hash[64];
crypto_hash_sha512(hash, seed, 32); crypto_hash_sha512(hash, seed, 32);
memmove(sk, hash, 32); memcpy(sk, hash, 32);
sodium_memzero(hash, sizeof hash); sodium_memzero(hash, sizeof hash);
return crypto_scalarmult_curve25519_base(pk, sk); return crypto_scalarmult_curve25519_base(pk, sk);

2
src/libsodium/crypto_box/curve25519xsalsa20poly1305/box_curve25519xsalsa20poly1305.c
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@ -16,7 +16,7 @@ crypto_box_curve25519xsalsa20poly1305_seed_keypair(unsigned char * pk,
unsigned char hash[64]; unsigned char hash[64];
crypto_hash_sha512(hash, seed, 32); crypto_hash_sha512(hash, seed, 32);
memmove(sk, hash, 32); memcpy(sk, hash, 32);
sodium_memzero(hash, sizeof hash); sodium_memzero(hash, sizeof hash);
return crypto_scalarmult_curve25519_base(pk, sk); return crypto_scalarmult_curve25519_base(pk, sk);