diff options
Diffstat (limited to 'agent/protect.c')
| -rw-r--r-- | agent/protect.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/agent/protect.c b/agent/protect.c index d26573d11..3e2cbb94e 100644 --- a/agent/protect.c +++ b/agent/protect.c @@ -1075,7 +1075,11 @@ hash_passphrase (const char *passphrase, int hashalgo, unsigned long s2kcount, unsigned char *key, size_t keylen) { - + /* The key derive function does not support a zero length string for + the passphrase in the S2K modes. Return a better suited error + code than GPG_ERR_INV_DATA. */ + if (!passphrase || !*passphrase) + return gpg_error (GPG_ERR_NO_PASSPHRASE); return gcry_kdf_derive (passphrase, strlen (passphrase), s2kmode == 3? GCRY_KDF_ITERSALTED_S2K : s2kmode == 1? GCRY_KDF_SALTED_S2K : |