Add PK_Decryptor::decrypt_or_random

Performs content checks on the value (expected length, expected bytes)
and in constant time returns either the decrypted value or a random value.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lib/pk_pad/eme_raw/eme_raw.h b/src/lib/pk_pad/eme_raw/eme_raw.h
index ae57587a3..60d23323c 100644
--- a/src/lib/pk_pad/eme_raw/eme_raw.h
+++ b/src/lib/pk_pad/eme_raw/eme_raw.h
@@ -21,7 +21,10 @@ class BOTAN_DLL EME_Raw final : public EME
       secure_vector<byte> pad(const byte[], size_t, size_t,
                              RandomNumberGenerator&) const override;
 
-      secure_vector<byte> unpad(const byte[], size_t, size_t) const override;
+      secure_vector<byte> unpad(byte& valid_mask,
+                                const byte in[],
+                                size_t in_len,
+                                size_t key_length) const override;
    };
 
 }