Changes for CryptX

TODO:
        - XS croaks should report the "real caller" (Crypt::Mac::*, Crypt::Mode::*, ...)
        - CCM interface new-add-add-done

0.054_* 2017-10-XX
        - new Crypt::Cipher::IDEA
        - new Crypt::Cipher::Serpent
        - new Crypt::Stream::Salsa20

0.054   2017-10-12
        - fix Crypt::PK::DSA verify
        - libtomcrypt updated to 1.18 (+ some extra patches)
        - documentation fixes

0.053   2017-09-15
        - fix Crypt::PK::DSA generate_key

0.051   2017-08-08
        - INCOMPATIBLE CHANGE: Crypt::AuthEnc::OCB is now compliant with RFC 7253

0.050   2017-07-18
        - fix cpantesters failures/warnings

0.049   2017-07-18
        - libtomcrypt updated to 1.18-rc2 (+ some extra patches)
        - REMOVED: Crypt::PK::DH encrypt decrypt sign_message verify_message sign_hash verify_hash
        - NEW: Crypt::Misc - encode_b32*, decode_b32*, encode_b58*, decode_b58*
        - Crypt::PK::RSA: import public key from X509 certificate
        - Crypt::PK::DSA: improved generate_key()
        - Crypt::PK::DH: improved generate_key()
        - fix #36 aad_add is obsolete for all EncAuth algs (correct is adata_add)
        - fix #37 GCM - Encryption of the empty string

0.048   2017-05-31
        - NEW: Crypt::Digest::SHA3_224
        - NEW: Crypt::Digest::SHA3_256
        - NEW: Crypt::Digest::SHA3_384
        - NEW: Crypt::Digest::SHA3_512
        - NEW: Crypt::Digest::SHAKE
        - NEW: Crypt::Digest::BLAKE2b_160
        - NEW: Crypt::Digest::BLAKE2b_256
        - NEW: Crypt::Digest::BLAKE2b_384
        - NEW: Crypt::Digest::BLAKE2b_512
        - NEW: Crypt::Digest::BLAKE2s_128
        - NEW: Crypt::Digest::BLAKE2s_160
        - NEW: Crypt::Digest::BLAKE2s_224
        - NEW: Crypt::Digest::BLAKE2s_256
        - NEW: Crypt::AuthEnc::ChaCha20Poly1305
        - NEW: Crypt::Mac::Poly1305
        - NEW: Crypt::Mac::BLAKE2s
        - NEW: Crypt::Mac::BLAKE2b
        - NEW: Crypt::PRNG::ChaCha20
        - NEW: Crypt::Stream::ChaCha
        - NEW: Crypt::Stream::RC4
        - NEW: Crypt::Stream::Sober128
        - NEW: functions in Crypt::Misc - increment_octets_be, increment_octets_le
        - Crypt::PRNG now uses chacha20 prng by default

0.047   2017-04-05
        - fix #32 Compile "ar" step fails when Perl built with -flto (better version)
        - fix #33 build fails on freebsd 9.2 and 10.0 (ar: fatal: Numeric group ID too large)

0.046   2017-04-04
        - fix #32 Compile "ar" step fails when Perl built with -flto

0.045   2017-03-31
        - sync with libtomcrypt/develop
        - fix #30 fix on SPARC+SolarisStudio
        - fix #31 Fails tests without '.' in @INC
        - polish compiler warnings

0.044   2016-11-28
        - fix #27 Math::BigInt::LTM compatibility with older Math::BigInt

0.043   2016-11-27
        - fix #26 Math::BigInt::LTM compatibility with Math::BigInt 1.999801+

0.042   2016-11-12
        - RSA: sign/verify functions now support 'none' padding (INSECURE!)
        - RC2: min keylen 40bit, used to be 64bit (INSECURE!)

0.041   2016-10-12
        - ECC: ltc_ecc_is_point memory leak
        - DSA: properly handle FIPS 186-4 (4.6 + 4.7)
        - GCM: counter incrementation isn't stopped at 2^32 blocks, which breaks GCM
        - fix issue #24 Crypt::PK::ECC needs $VERSION (all *.pm have $VERSION)

0.040   2016-09-12
        - fix file permissions
        - fix compiler warnings

0.039   2016-08-02
        - fix build troubles for MacOS / PPC

0.038   2016-07-06
        - fix issue #20 DSA/RSA/ECC/DH key2hash - hexadecimal numbers are missing leading zero
        - Math::BigInt::LTM fixed mp_invmod(a,b,c) for b == 1
        - Math::BigInt::LTM fixed _log_int()
        - Math::BigInt::LTM fixed _alen()
        - fix 'Please specify prototyping behavior for CryptX.xs'
        - libtomcrypt (renaming *tab.c > *tab.c.inc not needed anymore)

0.037   2016-06-16
        - fix issue #18 Minor issue with comment syntax
        - fix issue #19 t/checksum.t fails on AIX-5.3

0.036   2016-06-07
        - fix issue #17 ability to export ecc keys in short/oid form

0.035   2016-06-03
        - fix issue #14 Ensure Crypt::PK::ECC->key2hash()->{curve_name} is lowercase
        - fix issue #15 OpenSSL interoperability broken

0.034   2016-05-11
        - Prevent RSA import_key() from altering a JWK hash reference

0.033   2016-05-09
        - MSVC6 related fixes (needed for older ActivePerl@MSWin32)

0.032   2016-05-04
        - Crypt::PK::DH - accept base/prime values
        - new: DH methods export_key_raw, import_key_raw, params2hash
        - enhanced: DH method generate_key
        - new: Crypt::Checksum, Crypt::Checksum::CRC32, Crypt::Checksum::Adler32

0.031   2016-05-01
        - new: RSA+ECC method export_key_jwk_thumbprint()
        - new: Crypt::Misc functions random_v4uuid + is_v4uuid
        - fix: RSA+ECC export_key_jwk produces canonical JSON
        - fix: RSA+DSA public key export now produces PEM/DER compatible with openssl
                  public keys exported be previous version can still be imported
        - fix: ECC import_key now accepts non-standard JWK curve names e.g. "secp112r1", "secp521r1"

0.030   2016-04-13
        - fix: 0.029 + 0.028 by mistake installed *.inc files to perl/(lib|site|vendor)

0.029   2016-04-13
        - NEW module: Math::BigInt::LTM
        - NEW module: Crypt::Misc

0.028   2016-03-23
        - IMPORTANT: switch from Module::Build to ExtUtils::MakeMaker
        - fix for broken DSA key (ssh format) loading

0.027   2016-01-25
        - sync with https://github.com/libtom/libtomcrypt (branch develop)
        - sync with https://github.com/libtom/libtommath (branch develop)
        - HP-UX related fixes
        - JSON dependency is now optional (we check JSON::PP, JSON::XS, Cpanel::JSON::XS)
        - skip jwk.t if no JSON::* module available
        - does not require MIME::Base64 (we use base64 routines from libtomcrypt)

0.026   2015-11-28
        - switch to JSON::MaybeXS
        - Crypt::PRNG - rand/irand related cosmetics
        - consistently using UNIX newlines

0.025   2015-07-07
        - Crypt::PK::ECC+RSA export_key_jwk() allows to export a perl HASH with JWK structure

0.024   2015-06-29
        - new Crypt::PK::ECC methods
            verify_message_rfc7518()
            sign_message_rfc7518()
            curve2hash()
        - fix for Crypt::PK::RSA - bug in loading private key in JWK format

0.023   2015-06-10
        - support for older compilers (gcc3, vc6)
        - typo in documentation (by tomhukins)

0.022   2015-05-22
        - new: Crypt::PK::ECC+RSA export_key_jwk() - exporting JWK format
        - new: Crypt::Digest::SHA512_224
        - new: Crypt::Digest::SHA512_256
        - Crypt::PK::ECC+RSA import_key() - support for:
          * public/private keys in JWK format
          * private keys in PKCS8 PEM/DER format (unencrypted only)
        - Crypt::PK::ECC+RSA+DSA import_key() - support for:
          * public keys in SSH format
          * public/private keys as a hashref exported via key2hash
        - libtomcrypt updated to the latest develop branch, commit aeaa6d4a51 Apr 17 08:59:35 2015 +0200
        - libtommath  updated to the latest develop branch, commit 0fd5e6c17f Dec 11 14:59:35 2014 +0100
        - documentation fixes

0.021   2014-01-23
        - fixed asm(...) related compiler failures
        - dsa_encrypt_key small correction
        - optimized ecc_encrypt_key

0.020   2014-01-18
        - INCOMPATIBLE CHANGE: huge redesign of Crypt::PK::ECC
        - ECC now supports curves y^2 = x^3 + a*x + b
        - ECC you can use custom curves
        - ECC import/export of keys in DER/PEM format now compatible with openssl
        - enabling compile options ASM + ECC_TIMING_RESISTANT
        - added many test vectors (RSA, DSA, EC) for interoperability with openssl

0.019   2013-10-20
        - fixed broken CAMELLIA implementation

0.018   2013-10-18
        - DSA: make_key + sign_hash fixes

0.017   2013-09-24
        - lowering MIME::Base64 version requirement
        - support for import/export of password protected RSA/DSA keys
        - RSA: added - export_key_pem('public_x509')
        - better handling of dh_free/rsa_free/dsa_free/ecc_free
        - added openssl test vectors
        - fixed compiler warnings (RSA/DSA/ECC/DH)

0.016   2013-09-15
        - added missing test for key2hash, sign_hash, verify_hash
        - fixed build failures on VC6

0.015   2013-09-12
        - only documentation fixes

0.014   2013-09-11
        - Crypt::Digest::NNN + Crypt::Mac::NNN - can produce Base64-URL-Safe encoded digest/mac
        - Crypt::PRNG + Crypt::PRNG::NNN - Base64-URL-Safe encoded random bytes (random_bytes_b64u/bytes_b64u)
        - Crypt::PK::RSA/DSA/DH/ECC - sign/verify replaced by sign_message/verify_message + sign_hash/verify_hash
        - Crypt::PK::RSA/DSA/DH/ECC - new method key2hash
        - documentation fixes

0.013   2013-08-28
        - DSA/RSA/ECC/DH - importing keys from string changed - now: $pk->import_key(\$buffer_with_key)
        - DSA/RSA/ECC/DH - size() and is_private() now return undef if no key loaded
        - improved RSA doc

0.012   2013-06-17
        - README, LICENSE etc. to improve CPANTS score
        - somehow works with perl 5.6.2

0.011   2013-06-15
        - fixing various compiler warnings

0.009   2013-05-19
        - doc fixes
        - requires perl 5.8.8 or higher
        - INCOMPATIBILITY: all digest related 'xxx_base64' functions renamed to 'xxx_b64'

0.008   2013-05-02
        - fixed prng test failures
        - Crypt::Digest::* croaks with the "real caller" (not a nice solution)

0.007   2013-04-23
        - Crypt::PRNG supports add_entropy() - without params
        - Crypt::PRNG fork-safe & thread-safe
        - random_string has default $len = 20
        - doc fixes
        - cpan tester failure fix for pk_dsa.t

0.006   2013-04-19
        - added Crypt::KeyDerivation
        - Win64 compatibility

0.005   2013-04-18
        - added Crypt::PRNG::Fortuna|RC4|Sober128|Yarrow
        - added Crypt::PK::RSA|DSA|ECC|DH

0.004   2013-04-16
        - removing illegal Crypt::Random

0.003   2013-04-16
        - added Crypt::Mode::CBC|CFB|CTR|ECB|OFB
        - added Crypt::AuthEnc::CCM|EAX|GCM|OCB

0.002   2013-04-11
        - first release on CPAN
