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-rw-r--r--components/gcm_driver/crypto/gcm_message_cryptographer.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/components/gcm_driver/crypto/gcm_message_cryptographer.h b/components/gcm_driver/crypto/gcm_message_cryptographer.h
index 58c44a8..e2b299e 100644
--- a/components/gcm_driver/crypto/gcm_message_cryptographer.h
+++ b/components/gcm_driver/crypto/gcm_message_cryptographer.h
@@ -32,6 +32,10 @@ namespace gcm {
// messages provided that a cryptographically-strong random salt is used.
class GCMMessageCryptographer {
public:
+ // Salt size, in bytes, that will be used together with the key to create a
+ // unique content encryption key for a given message.
+ static const size_t kSaltSize;
+
GCMMessageCryptographer();
~GCMMessageCryptographer();