Sha256: e0ab09cdc28b4722e8418c904dc6d634e63f33a90b3bf8e88b78b275caf8b69e
Contents?: true
Size: 1.3 KB
Versions: 6
Compression:
Stored size: 1.3 KB
Contents
#!/usr/bin/env ruby
require 'openssl'
require 'base64'
$Key = {}
def genKey(password)
cache = $Key[password]
if cache
puts "cache",cache
return cache
end
salt = 'this is a salt string 20221019'
iter = 12345
key_len = 32
key = OpenSSL::KDF.pbkdf2_hmac(password, salt: salt, iterations: iter,
length: key_len, hash: "sha256")
$Key[password] = key
return key
end
def encrypt(msg,password)
cipher = OpenSSL::Cipher::AES.new(256, :GCM).encrypt
iv = cipher.random_iv
cipher.iv = iv
cipher.key = genKey password
encrypted = cipher.update(msg) + cipher.final
return 'E1.' + Base64.strict_encode64(iv + encrypted + cipher.auth_tag)
end
def decrypt(enstring,password)
b64 = enstring[3..-1]
data = Base64.strict_decode64 b64
len = data.bytesize
iv = data[0...12]
auth_tag = data[0...16] #data[len-16..-1]
encdata = data[12...len-16]
cipher = OpenSSL::Cipher::AES.new(256, :GCM).decrypt
cipher.iv = iv
cipher.key = genKey password
# cipher.auth_tag = '1234567890123456'
result = cipher.update(encdata)
return result
end
msg = '我的 12a23007'
z = encrypt msg,'123'
puts z
puts z[3..-1]
m = decrypt z ,'123'
puts m
genKey '123'
genKey '123'
genKey '123'
genKey '456'
puts $Key
Version data entries
6 entries across 6 versions & 1 rubygems