Sha256: 2f079a59c98266cfd3812112274fc67552c65d12d11409044150f501f5774c3b
Contents?: true
Size: 889 Bytes
Versions: 13
Compression:
Stored size: 889 Bytes
Contents
require 'openssl'
module Heirloom
module Cipher
class Data
def initialize(args)
@config = args[:config]
@logger = @config.logger
end
def decrypt_data(args)
data = args[:data]
secret = args[:secret]
return data unless args[:secret]
@logger.info "Secret provided. Decrypting archive."
@aes = OpenSSL::Cipher::AES256.new(:CBC)
@aes.decrypt
@aes.key = Digest::SHA256.hexdigest secret
@aes.iv = data.slice!(0,16)
begin
@aes.update(data) + @aes.final
rescue OpenSSL::Cipher::CipherError => e
if e.message == 'wrong final block length'
@logger.error 'This archive does not appear to be encrypted.'
end
@logger.error "Unable to decrypt archive: '#{e.message}'"
false
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems