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authorChristian Pointner <equinox@anytun.org>2008-02-19 21:37:22 +0000
committerChristian Pointner <equinox@anytun.org>2008-02-19 21:37:22 +0000
commitcf18c2f73465f82a43a61c58d6bac8505f7cf07a (patch)
tree0ddf73b1cc95ddc12b250a88c2cbfa102564788a /authAlgo.h
parentreplaces cypher with cipher (diff)
further cleanups
Diffstat (limited to 'authAlgo.h')
-rw-r--r--authAlgo.h35
1 files changed, 17 insertions, 18 deletions
diff --git a/authAlgo.h b/authAlgo.h
index e3a81be..bf72e32 100644
--- a/authAlgo.h
+++ b/authAlgo.h
@@ -44,22 +44,32 @@ public:
AuthAlgo() {};
virtual ~AuthAlgo() {};
- virtual AuthTag calc(const Buffer& buf) { return AuthTag(0); };
- virtual void setKey(Buffer key) {};
+ /**
+ * set the key for the auth algo
+ * @param key key for hmac calculation
+ */
+ virtual void setKey(Buffer key) = 0;
+
+ /**
+ * calculate the sha1 hmac
+ * @param buf buffer for message digest
+ * @return sha1 hmac
+ */
+ virtual AuthTag calc(const Buffer& buf) = 0;
};
+//****** NullAuthAlgo ******
+
class NullAuthAlgo : public AuthAlgo
{
public:
- NullAuthAlgo() {};
AuthTag calc(const Buffer& buf);
void setKey(Buffer key) {};
};
-/**
- * HMAC SHA1 Auth Tag Generator Class
- */
+//****** Sha1AuthAlgo ******
+//* HMAC SHA1 Auth Tag Generator Class
class Sha1AuthAlgo : public AuthAlgo
{
@@ -67,21 +77,10 @@ public:
Sha1AuthAlgo();
~Sha1AuthAlgo();
- /**
- * set the key for the auth algo
- * @param key key for hmac calculation
- */
void setKey(Buffer key);
-
- /**
- * calculate the sha1 hmac
- * @param buf buffer for message digest
- * @return sha1 hmac
- */
AuthTag calc(const Buffer& buf);
+
protected:
- static const char* MIN_GCRYPT_VERSION;
- static const u_int32_t GCRYPT_SEC_MEM = 32768; // 32k secure memory
gcry_md_hd_t ctx_;
Mutex mutex_;
};