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Added a note about DH/keymat lifecycle for custom implementations

This commit is contained in:
Martin Willi 2012-04-16 16:57:18 +02:00
parent a59a03670b
commit d0d600e1ef
1 changed files with 6 additions and 1 deletions
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7
src/libcharon/sa/keymat.h
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@ -40,7 +40,12 @@ struct keymat_t {
*
* The diffie hellman is either for IKE negotiation/rekeying or
* CHILD_SA rekeying (using PFS). The resulting DH object must be passed
* to derive_keys or to derive_child_keys and destroyed after use
* to derive_keys or to derive_child_keys and destroyed after use.
*
* Only DH objects allocated through this method are passed to other
* keymat_t methods, allowing private DH implementations. In some cases
* (such as retrying with a COOKIE), a DH object allocated from a different
* keymat_t instance may be passed to other methods.
*
* @param group diffie hellman group
* @return DH object, NULL if group not supported