[krbdev.mit.edu #8490] git commit

[Greg Hudson via RT]

Add libk5crypto SHA-256 and SHA-384 hash providers

Add SHA-256 and SHA-384 hash providers to each of the libk5crypto back
ends, in preparation for AES-SHA2 support.  For the builtin back end,
adapt SHA-512 code from Heimdal (SHA-384 is just truncated SHA-512
with different initial values).  Replace builtin/sha2/t_sha256.c with
a program under crypto_tests which tests SHA-256 and SHA-384 in all
back ends.

https://github.com/krb5/krb5/commit/c438227afd763997c131339c1476f61d1628a20d
Author: Greg Hudson <ghudson at mit.edu>
Commit: c438227afd763997c131339c1476f61d1628a20d
Branch: master
 src/lib/crypto/builtin/hash_provider/Makefile.in |   11 +-
 src/lib/crypto/builtin/hash_provider/deps        |   13 +
 src/lib/crypto/builtin/hash_provider/hash_sha2.c |   88 +++++++
 src/lib/crypto/builtin/sha2/Makefile.in          |   20 +--
 src/lib/crypto/builtin/sha2/deps                 |   10 +
 src/lib/crypto/builtin/sha2/sha2.h               |   23 ++
 src/lib/crypto/builtin/sha2/sha512.c             |  305 ++++++++++++++++++++++
 src/lib/crypto/builtin/sha2/t_sha256.c           |  117 ---------
 src/lib/crypto/crypto_tests/Makefile.in          |   13 +-
 src/lib/crypto/crypto_tests/deps                 |   12 +
 src/lib/crypto/crypto_tests/t_sha2.c             |  145 ++++++++++
 src/lib/crypto/krb/crypto_int.h                  |    2 +
 src/lib/crypto/openssl/hash_provider/hash_evp.c  |   20 ++
 src/lib/crypto/openssl/hmac.c                    |    4 +
 14 files changed, 642 insertions(+), 141 deletions(-)