diff options
Diffstat (limited to 'lib/securerandom.rb')
| -rw-r--r-- | lib/securerandom.rb | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/securerandom.rb b/lib/securerandom.rb index bb1d83e0d9..6f85532ce8 100644 --- a/lib/securerandom.rb +++ b/lib/securerandom.rb @@ -91,16 +91,21 @@ module SecureRandom unless defined?(@has_win32) begin - require 'Win32API' + advapi32 = Module.new do + require "fiddle/import" + extend Fiddle::Importer + dlload "advapi32" + extern "int CryptAcquireContext(void*, void*, void*, unsigned long, unsigned long)" + extern "int CryptGenRandom(void*, unsigned long, void*)" + end - crypt_acquire_context = Win32API.new("advapi32", "CryptAcquireContext", 'PPPII', 'L') - @crypt_gen_random = Win32API.new("advapi32", "CryptGenRandom", 'VIP', 'L') + @crypt_gen_random = advapi32.method(:CryptGenRandom) hProvStr = " " * Fiddle::SIZEOF_VOIDP prov_rsa_full = 1 crypt_verifycontext = 0xF0000000 - if crypt_acquire_context.call(hProvStr, nil, nil, prov_rsa_full, crypt_verifycontext) == 0 + if advapi32.CryptAcquireContext(hProvStr, nil, nil, prov_rsa_full, crypt_verifycontext) == 0 raise SystemCallError, "CryptAcquireContext failed: #{lastWin32ErrorMessage}" end type = Fiddle::SIZEOF_VOIDP == Fiddle::SIZEOF_LONG_LONG ? 'q' : 'l' |