0.9.7
 - Configure script checks SHLIB_VERSION_NUMBER to find matching lib
 - Added internal stopifnot() replacement to give more helpful error mesasges
 - Add live SSL unit tests from https://pki.goog
 - Fix for OpenBSD/FreeBSD (#41)
 - Added as.integer.bignum() method
 - Update maintainer email address
 - Add symbol registration call in R_init_openssl
 - Reject empty digests when signing (#44)
 - Use OPENSSL_free to free OpenSSL's allocations (#44)
 - Cleanups for ec_keygen() (#44)
 - Windows: update OpenSSL to 1.1.0f

0.9.6
 - Add read_p7b() and write_p7b() for certificate bundles
 - Rename read_pkcs12 / write_pkcs12 to read_p12 / write_p12
 - More unit test for rountripping certs
 - Workaround for PEM files with "RSA PUBLIC KEY" instead of "PUBLIC KEY" header
 - Fix example in bignum vignette for OpenSSL 1.1.0 (increase RSA key size)
 - Sync bundled cacert.pem with Mozilla as of: Wed Sep 14 03:12:05 2016
 - Added blake2b and blake2s hash functions (only available in libssl 1.1)
 - Fix support for LibreSSL
 - Windows: update libssl/libcrypto to 1.1.0c

0.9.5
 - Support for new API in OpenSSL 1.1.0
 - Remove 'pseudo_rand_bytes()' (deprecated in libssl)
 - Work around missing EVP_CIPH_GCM_MODE in OpenSSL 1.0.0
 - Add read_pkcs12() and write_pkcs12() functions
 - Add read_pem() for debugging PEM files
 - Add base methods [, [[, $, names, .DollarNames for keys and certificates
 - Update libssl on Windows to 1.0.2h
 - Add #define _POSIX_C_SOURCE in ssl.c to ensure getaddrinfo() is available
 - Add as.character.hash method for raw hashes
 - Clear error buffer when raising an error

0.9.4
 - Fix ec_keygen() for old versions of OpenSSL
 - Added aes_ctr() and aes_gcm() modes
 - Added aes_keygen()
 - Added bignum_mod_inv()
 - Internal tools for JWT/JWK support (see pkg: jose)

0.9.3
 - Added ec_dh() function for ECDH
 - Added --atleast-version=1.0 to pkg-config in configure script
 - Switch as.list(cert) to RFC2253 format for 'subject' and 'issuer' fields

0.9.2
 - Disable EC stuff for OPENSSL_NO_EC (needed on some Solaris / Gentoo)
 - Added openssl_config() function to test if libssl is built with EC support
 - Make configure script bourne compatible (remove bash shebang)
 - Tweak for OpenBSD in ssl.c
 - Added sha224, sha384 and sha2 functions
 - Export the fingerprint function

0.9.1
 - Fix for getaddrinfo() in Solaris
 - Use the configurable askpass() for password prompt

0.9
 - Switched download_ssl_cert to getaddrinfo() api for ipv6 support
 - Fix for example for naming conflict with new digest package

0.8
 - Configure script now checks for OpenSSL minimum version 1.0.0

0.7
 - Breaking change: hash functions now use hmac 'key' instead of a 'salt'
 - The my_key() and my_pubkey() functions now work as documented
 - as.list(cert) add alt_names field for https certs with multiple domains
 - added export_pem for certificates

0.6
 - Added --force-bottle to autobrew installer
 - Use nonblocking socket in ssl to set connection timeout
 - Fix UBSAN problem in ssl.c
 - Fix ASAN problem in hash.c

0.5
 - Major overhaul, add encryption, signature, cert stuff
 - Upgrade libssl and libcrypto on windows to 1.0.2d

0.4
 - Added base64 functions
