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For keys of type "encrypted", consistently zero sensitive key material before freeing it. This was already being done for the decrypted payloads of encrypted keys, but not for the master key and the keys derived from the master key. Out of an abundance of caution and because it is trivial to do so, also zero buffers containing the key payload in encrypted form, although depending on how the encrypted-keys feature is used such information does not necessarily need to be kept secret. Cc: Mimi Zohar <zohar@linux.vnet.ibm.com> Cc: David Safford <safford@us.ibm.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <james.l.morris@oracle.com> |
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| .. | ||
| ecryptfs_format.c | ||
| ecryptfs_format.h | ||
| encrypted.c | ||
| encrypted.h | ||
| Makefile | ||
| masterkey_trusted.c | ||