Problem with OpenSSL using MacRuby's internal conversion to and from NSData

[rich@…]

This code will reproduce the problem:

require 'openssl' require 'digest/sha1'

CRYPT = "aes256" password = 'test' gen_key = OpenSSL::Cipher::Cipher.new(CRYPT) gen_key.encrypt key_crypt = OpenSSL::Cipher::Cipher.new(CRYPT) key_crypt.encrypt key_crypt.key = Digest::SHA1.hexdigest(password+CRYPT)[2,32] key = key_crypt.update("KEY_"+OpenSSL::Random.random_bytes(key_crypt.key_len)) key << key_crypt.final

#comment out next line and it works File.open("tmp.key", "wb") {|f| f.write(key)}

key_decrypt = OpenSSL::Cipher::Cipher.new(CRYPT) key_decrypt.decrypt key_decrypt.key = Digest::SHA1.hexdigest(password+CRYPT)[2,32] db_key = key_decrypt.update(key) db_key << key_decrypt.final

If you take out that file write operation, then this code will run. You leave it in and you get block_length error.

I believe that has to do with internally converting objects to NSData when treated as binary. It still says the class is NSCFString but something is happening to it.

[rich@…]

example code