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Merge pull request #340 from neuhaus/patch-1

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wipe secret key as soon as it is no longer needed.
This commit is contained in:
Frank Denis
2015-12-22 11:16:09 +01:00
parent 15285e4743 0900de8c1d
commit b6fd83fa2f
1 changed files with 2 additions and 2 deletions
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examples/sign.c
+2 -2
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@@ -45,6 +45,8 @@ sign(void)
printf("Signing message with %s...\n", crypto_sign_primitive()); printf("Signing message with %s...\n", crypto_sign_primitive());
crypto_sign(message_signed, &message_signed_len, message, message_len, sk); crypto_sign(message_signed, &message_signed_len, message, message_len, sk);
sodium_memzero(sk, sizeof sk); /* wipe sensitive data */
printf("Signed message:"); printf("Signed message:");
print_hex(message_signed, message_signed_len); print_hex(message_signed, message_signed_len);
printf("A %u bytes signature was prepended to the message\n", printf("A %u bytes signature was prepended to the message\n",
@@ -64,8 +66,6 @@ sign(void)
if (ret == 0) if (ret == 0)
printf("Message: %s\n", message); printf("Message: %s\n", message);
sodium_memzero(sk, sizeof sk); /* wipe sensitive data */
return ret; return ret;
} }