Sha256: 69c060acd46b65d6aa589ff704614b111c21c48be12d1c87791dc62d44cf1cc2
Contents?: true
Size: 1.04 KB
Versions: 11
Compression:
Stored size: 1.04 KB
Contents
class PubnubCrypto
require 'yajl'
def initialize(cipher_key)
@alg = "AES-256-CBC"
sha256_key = Digest::SHA256.hexdigest(cipher_key)
@key = sha256_key.slice(0,32)
#puts("\nraw sha cipher_key is: #{cipher_key}")
#puts("raw sha cipher_key is: #{sha256_key}")
#puts("padded cipher_key is: #{@key}\n")
@iv = '0123456789012345'
end
def encrypt(message)
aes = OpenSSL::Cipher::Cipher.new(@alg)
aes.encrypt
aes.key = @key
aes.iv = @iv
json_message = Yajl.dump(message)
cipher = aes.update(json_message)
cipher << aes.final
Base64.strict_encode64(cipher)
end
def decrypt(cipher_text)
decode_cipher = OpenSSL::Cipher::Cipher.new(@alg)
decode_cipher.decrypt
decode_cipher.key = @key
decode_cipher.iv = @iv
plain_text = ""
begin
undecoded_text = Base64.decode64(cipher_text)
plain_text = decode_cipher.update(undecoded_text)
plain_text << decode_cipher.final
rescue => e
return "DECRYPTION_ERROR"
end
return Yajl.load(plain_text)
end
end
Version data entries
11 entries across 11 versions & 3 rubygems