XXX: lots of patches without comments, and not upstreamed it seems.
Noteworthy changes in version 1.5.2 (2013-04-18)
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* Added support for IDEA.
* Made the Padlock code work again (regression since 1.5.0).
* Fixed alignment problems for Serpent.
* Fixed two bugs in ECC computations.
* Publish GCRY_MODULE_ID_USER and GCRY_MODULE_ID_USER_LAST constants.
This functionality has been in Libgcrypt since 1.3.0.
* MD5 may now be used in non-enforced fips mode.
* Fixed HMAC for SHA-384 and SHA-512 with keys longer than 64 bytes.
* In fips mode, RSA keys are now generated using the X9.31 algorithm
and DSA keys using the FIPS 186-2 algorithm.
* The transient-key flag is now also supported for DSA key
generation. DSA domain parameters may be given as well.
VIA PadLock Security Engine:
- The new option is turned on by default.
- The new option is only available on i386 systems except Mac OS X (which
doesn't work on VIA CPU).
- The new option isn't available on system which uses GCC 3.x because it
causes build failures. This fixes PR pkg/38197.
Approved by Dieter Baron.