USING: accessors alien.c-types alien.data byte-arrays
combinators.short-circuit continuations destructors init kernel
locals namespaces random windows.advapi32 windows.errors
-windows.kernel32 math.bitwise ;
+windows.kernel32 windows.types math.bitwise sequences fry
+literals ;
IN: random.windows
TUPLE: windows-rng provider type ;
CONSTANT: factor-crypto-container "FactorCryptoContainer"
-:: (acquire-crypto-context) ( provider type flags -- handle ret )
- "HCRYPTPROV" <c-object> :> handle
- handle
- factor-crypto-container
- provider
- type
- flags
- CryptAcquireContextW handle swap ;
+:: (acquire-crypto-context) ( provider type flags -- handle )
+ { HCRYPTPROV } [
+ factor-crypto-container
+ provider
+ type
+ flags
+ CryptAcquireContextW
+ ] [ ] with-out-parameters ;
: acquire-crypto-context ( provider type -- handle )
CRYPT_MACHINE_KEYSET
(acquire-crypto-context)
- 0 = [
+ swap 0 = [
GetLastError NTE_BAD_KEYSET =
[ drop f ] [ win32-error-string throw ] if
- ] [
- *void*
- ] if ;
+ ] when ;
: create-crypto-context ( provider type -- handle )
- { CRYPT_MACHINE_KEYSET CRYPT_NEWKEYSET } flags
+ flags{ CRYPT_MACHINE_KEYSET CRYPT_NEWKEYSET }
(acquire-crypto-context) win32-error=0/f *void* ;
ERROR: acquire-crypto-context-failed provider type ;
[ CryptGenRandom win32-error=0/f ] keep
] with-destructors ;
+ERROR: no-windows-crypto-provider error ;
+
+: try-crypto-providers ( seq -- windows-rng )
+ [ first2 <windows-rng> ] attempt-all
+ dup windows-rng? [ no-windows-crypto-provider ] unless ;
+
[
- MS_DEF_PROV
- PROV_RSA_FULL <windows-rng> system-random-generator set-global
+ {
+ ${ MS_ENHANCED_PROV PROV_RSA_FULL }
+ ${ MS_DEF_PROV PROV_RSA_FULL }
+ } try-crypto-providers
+ system-random-generator set-global
- [ MS_STRONG_PROV PROV_RSA_FULL <windows-rng> ]
- [ drop MS_ENH_RSA_AES_PROV PROV_RSA_AES <windows-rng> ] recover
- secure-random-generator set-global
+ {
+ ${ MS_STRONG_PROV PROV_RSA_FULL }
+ ${ MS_ENH_RSA_AES_PROV PROV_RSA_AES }
+ } try-crypto-providers secure-random-generator set-global
+] "random.windows" add-startup-hook
-] "random.windows" add-init-hook
+[
+ [
+ ! system-random-generator get-global &dispose drop
+ ! secure-random-generator get-global &dispose drop
+ ] with-destructors
+] "random.windows" add-shutdown-hook