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crypto.red
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Red/System []
comment {
用 Red/System 对系统加解密库的封装。各平台使用的底层库如下：
* Windows：CNG
* Linux：libcrypto (OpenSSL)
* macOS: libcrypto (OpenSSL) installed by homebrew
由于只是对底层库的封装，而且CNG和libcrypto的API大同小异。所以R/S的API应
接近其中一个底层库。这样在其中一个平台可以很容易实现。平台的API有差别时，
选择容易使用的一个。比如Symmetric Algorithms的API，选择了接近libcrypto的
设计。
}
#enum crypt-algorithm! [
AES
DES
_3DES
RC4
]
#enum block-chaining! [
ECB
CBC
;CFB8
;CFB64
;CFB128
GCM
CCM
;GMAC
;CMAC
]
cipher: context [
verbose: 0
#define DPrint(msg) [#if debug? = yes [if verbose > 0 [print-line msg]]]
#either OS = 'Windows [
#import [
]
;== Symmetric Algorithms
make: func [return: [handle!]][]
reset: func [hCrypt [handle!] return: [integer!]][]
free: func [hCrypt [handle!]][]
encypt-init: func [
hCrypt [handle!]
alg [crypt-algorithm!]
IV [byte-ptr!] ;-- initialization vector
key [byte-ptr!]
key-len [uint!] ;-- AES: 128, 192 or 256, DES: 56, 3DES: 56, 112, 168
chain-mode [block-chaining!] ;-- CBC, ECB, GCM, etc
return: [integer!] ;-- error code
][
DPrint("encypt-init")
]
encypt-update: func [
hCrypt [handle!] ;-- handle returned by make
data [byte-ptr!]
data-len [uint!]
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!] ;-- error code
][]
encrypt-final: func [
hCrypt [handle!] ;-- handle returned by make
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!]
][]
decrypt-init: func [
hCrypt [handle!]
alg [crypt-algorithm!]
IV [byte-ptr!] ;-- initialization vector
key [byte-ptr!]
key-len [uint!] ;-- AES: 128, 192 or 256, DES: 56, 3DES: 56, 112, 168
chain-mode [block-chaining!] ;-- CBC, ECB, GCM, etc
return: [integer!] ;-- error code
][]
decrypt-update: func [
hCrypt [handle!] ;-- handle returned by make
data [byte-ptr!]
data-len [uint!]
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!] ;-- error code
][]
decrypt-final: func [
hCrypt [handle!] ;-- handle returned by make
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!]
][]
set-property: func [ ;-- set IV length, tag length, etc.
hCrypt [handle!] ;-- handle returned by make
property [integer!]
input [byte-ptr!]
input-len [integer!]
return: [integer!]
]
get-property: func [
hCrypt [handle!] ;-- handle returned by make
property [integer!]
output [byte-ptr!]
output-len [int-ptr!]
return: [integer!]
]
;== Asymmetric Algorithms
rsa-make:
;== Key Exchange Algorithms
;-- ECDH, ECDSA, etc
;== Hashing Algorithms
;-- SHA, MD5, etc
][ ;@@ #either Linux & macOS use OpenSSL
#switch OS [
macOS [
#define LIBCRYPTO-file "libcrypto.dylib"
]
FreeBSD [
#define LIBCRYPTO-file "libcrypto.so.8"
]
#default [
#switch config-name [
RPi [#define LIBCRYPTO-file "libcrypto.so.1.1"]
Linux-ARM [#define LIBCRYPTO-file "libcrypto.so.1.1"]
#default [#define LIBCRYPTO-file "libcrypto.so.1.0.2"]
]
]
]
#import [
LIBCRYPTO-file cdecl [
]
]
;== Symmetric Algorithms
make: func [return: [handle!]][]
reset: func [hCrypt [handle!] return: [integer!]][]
free: func [hCrypt [handle!]][]
encypt-init: func [
hCrypt [handle!]
alg [crypt-algorithm!]
IV [byte-ptr!] ;-- initialization vector
key [byte-ptr!]
key-len [uint!] ;-- AES: 128, 192 or 256, DES: 56, 3DES: 56, 112, 168
chain-mode [block-chaining!] ;-- CBC, ECB, GCM, etc
return: [integer!] ;-- error code
][
DPrint("encypt-init")
]
encypt-update: func [
hCrypt [handle!] ;-- handle returned by make
data [byte-ptr!]
data-len [uint!]
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!] ;-- error code
][]
encrypt-final: func [
hCrypt [handle!] ;-- handle returned by make
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!]
][]
decrypt-init: func [
hCrypt [handle!]
alg [crypt-algorithm!]
IV [byte-ptr!] ;-- initialization vector
key [byte-ptr!]
key-len [uint!] ;-- AES: 128, 192 or 256, DES: 56, 3DES: 56, 112, 168
chain-mode [block-chaining!] ;-- CBC, ECB, GCM, etc
return: [integer!] ;-- error code
][]
decrypt-update: func [
hCrypt [handle!] ;-- handle returned by make
data [byte-ptr!]
data-len [uint!]
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!] ;-- error code
][]
decrypt-final: func [
hCrypt [handle!] ;-- handle returned by make
outbuf [byte-ptr!]
outlen [int-ptr!]
return: [integer!]
][]
set-property: func [ ;-- set IV length, tag length, etc.
hCrypt [handle!] ;-- handle returned by make
property [integer!]
input [byte-ptr!]
input-len [integer!]
return: [integer!]
]
get-property: func [
hCrypt [handle!] ;-- handle returned by make
property [integer!]
output [byte-ptr!]
output-len [int-ptr!]
return: [integer!]
]
;== Asymmetric Algorithms
;-- RSA
;-- DSA
;== Key Exchange Algorithms
;-- ECDH, ECDSA, etc
;== Hashing Algorithms
;-- SHA, MD5, etc
]]