TY - JOUR ID - TI - Identity hiding by Authority Room scheme إخفاء الهوية بمخطط غرفة الصلاحية AU - د. صلاح عبد الهادي البيرماني PY - 2009 VL - IS - 7 SP - 57 EP - 81 JO - The islamic college university journal مجلة الكلية الاسلامية الجامعة SN - 19976208 26644355 AB -

In this paper we use public key cryptosystems to keep the message by hiding the identity of the Customer's public key by pseudo key from Room of trust worthy. The key center generated from two public keys in the Room of Distribution Center. The Public key use to encryption and the private key for decryption of Ciphertext, the secretary is signing the message sent by the customer blindly without learn any think about the Customer and the message by check the validity of the Customer from the server of the database.By sending the Ciphertext through multiple Authority Rooms (group of users authentications) without breaking the public key of the message because its transfer blindly through the Authority Room after check the validity of the sender ID and its Authority Room IDR.Each Authority Room has two keys, public key of the previous Authority Room (to recover the Ciphertext) and its own private key (for signing the Ciphertext) then resend the signing message to the next Authority Room.This method is fit to multiple Customers, Managers and for multiple Authority Rooms to transfer the message from the sender to the receiver and encrypted the message by receiver public key hiding and blindly signing after transfer through multiple Authority Rooms, in this paper we used RSA algorithm for encryption and signing process. ER -