gcrypt initialization

Daniel Kahn Gillmor dkg at fifthhorseman.net
Mon Oct 26 23:14:53 CET 2009

hey gcrypt folks--

I'm trying to understand the various phases of gcrypt initialization.

I've read the docs, but in some places they appear to be
self-contradictory about what calls are specifically allowed when.

As i understand it, the required order is:


B) gcry_check_version()

C) gcry_control(<other commands>,...)


E) <actual use of the library>

When a gcry_control command says that it can "only be used during
initialization time" (e.g. GCRYCTL_ENABLE_M_GUARD),  i believe that
means that it must be invoked during phase C, but other gcry_control
invocations can be invoked at any time (including after the library has
actually been used).

Is this correct?  What am i missing?



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