Difference between revisions of "Cryptography"
From GiderosMobile
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__NOTOC__ | __NOTOC__ | ||
− | '''Supported platforms:''' <br/> | + | <!-- GIDEROSOBJ:Cryptography --> |
+ | '''Supported platforms:''' [[File:Platform android.png]][[File:Platform ios.png]][[File:Platform mac.png]][[File:Platform pc.png]][[File:Platform html5.png]][[File:Platform winrt.png]][[File:Platform win32.png]]<br/> | ||
'''Available since:''' Gideros 2016.04<br/> | '''Available since:''' Gideros 2016.04<br/> | ||
− | === | + | |
− | + | === Description === | |
+ | Cryptographic primitives. | ||
+ | |||
+ | === Example === | ||
+ | <syntaxhighlight lang="lua"> | ||
+ | local key = "GiderosGideros11" | ||
+ | local iv = "GiderosRules2023" | ||
+ | local paddingType = 1 | ||
+ | |||
+ | |||
+ | local function cryptCopy(src, dst) | ||
+ | local srcf = io.open(src, "rb") | ||
+ | local dstf = io.open(dst, "wb") | ||
+ | local size = 2^13 -- good buffer size (8K) | ||
+ | while true do | ||
+ | local block = srcf:read(size) | ||
+ | if not block then break end | ||
+ | block = Cryptography.aesEncrypt(block,key,iv,paddingType) | ||
+ | dstf:write(block) | ||
+ | end | ||
+ | srcf:close() | ||
+ | dstf:close() | ||
+ | end | ||
+ | |||
+ | local function decryptCopy(src, dst) | ||
+ | local srcf = io.open(src, "rb") | ||
+ | local dstf = io.open(dst, "wb") | ||
+ | local size = 2^13 + 16 -- good buffer size (8K + 16 for padding) | ||
+ | while true do | ||
+ | local block = srcf:read(size) | ||
+ | if not block then break end | ||
+ | block = Cryptography.aesDecrypt(block,key,iv,paddingType) | ||
+ | dstf:write(block) | ||
+ | end | ||
+ | srcf:close() | ||
+ | dstf:close() | ||
+ | end | ||
+ | |||
+ | cryptCopy ("|D|myfile.sqlite", "C:/tmp/myfile.crypt") | ||
+ | decryptCopy ("C:/tmp/myfile.crypt", "C:/tmp/myfile.sqlite") | ||
+ | </syntaxhighlight> | ||
+ | |||
{|- | {|- | ||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
− | === | + | === Methods === |
− | [[ | + | [[Cryptography.aesDecrypt]] ''decrypts an AES string''<br/><!--GIDEROSMTD:Cryptography.aesDecrypt(ciphertext,key,iv,paddingType) decrypts an AES string--> |
− | [[ | + | [[Cryptography.aesEncrypt]] ''encrypts a string with AES''<br/><!--GIDEROSMTD:Cryptography.aesEncrypt(plaintext,key,iv,paddingType) encrypts a string with AES--> |
− | [[ | + | [[Cryptography.b64]] ''Base64 encode some data''<br/><!--GIDEROSMTD:Cryptography.b64(data) Base64 encode some data--> |
+ | [[Cryptography.md5]] ''computes the MD5 hash of the input string''<br/><!--GIDEROSMTD:Cryptography.md5(input) computes the MD5 hash of the input string--> | ||
+ | [[Cryptography.pbkdf2]] ''Password-Based Key Derivation Function 2''<br/><!--GIDEROSMTD:Cryptography.pbkdf2(password,salt,iterations,outputLength) Password-Based Key Derivation Function 2--> | ||
+ | [[Cryptography.sha1]] ''sha1 encode some data''<br/><!--GIDEROSMTD:Cryptography.sha1(data) sha1 encode some data--> | ||
+ | [[Cryptography.unb64]] ''Base64 decode a string''<br/><!--GIDEROSMTD:Cryptography.unb64(string) Base64 decode a string--> | ||
+ | |||
| style="width: 50%; vertical-align:top;"| | | style="width: 50%; vertical-align:top;"| | ||
− | === | + | |
− | === | + | === Events === |
+ | === Constants === | ||
|} | |} | ||
+ | |||
+ | {{GIDEROS IMPORTANT LINKS}} |
Latest revision as of 18:40, 15 December 2023
Supported platforms:
Available since: Gideros 2016.04
Description
Cryptographic primitives.
Example
local key = "GiderosGideros11"
local iv = "GiderosRules2023"
local paddingType = 1
local function cryptCopy(src, dst)
local srcf = io.open(src, "rb")
local dstf = io.open(dst, "wb")
local size = 2^13 -- good buffer size (8K)
while true do
local block = srcf:read(size)
if not block then break end
block = Cryptography.aesEncrypt(block,key,iv,paddingType)
dstf:write(block)
end
srcf:close()
dstf:close()
end
local function decryptCopy(src, dst)
local srcf = io.open(src, "rb")
local dstf = io.open(dst, "wb")
local size = 2^13 + 16 -- good buffer size (8K + 16 for padding)
while true do
local block = srcf:read(size)
if not block then break end
block = Cryptography.aesDecrypt(block,key,iv,paddingType)
dstf:write(block)
end
srcf:close()
dstf:close()
end
cryptCopy ("|D|myfile.sqlite", "C:/tmp/myfile.crypt")
decryptCopy ("C:/tmp/myfile.crypt", "C:/tmp/myfile.sqlite")
MethodsCryptography.aesDecrypt decrypts an AES string |
EventsConstants |