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    • 10. 发明授权
    • Fast encryption and authentication for data processing systems
    • 数据处理系统的快速加密和认证
    • US07305084B2
    • 2007-12-04
    • US10205430
    • 2002-07-24
    • Philip Michael HawkesGregory G. Rose
    • Philip Michael HawkesGregory G. Rose
    • H04L9/00
    • H04L9/3242H04L9/0637H04L9/0643
    • Methods and apparatus are presented for secure, authenticated communication and data storage. The methods can be based on other methods such as IAPM, in which the encryption and authentication keys are of the same strength. In the HR-IAPM mode, a sender encrypts the data as in the IAPM mode using two encryption keys K0 and K1. The sender then XORs the plaintexts with corresponding ciphertexts, and combines the results to form a checksum This checksum is encrypted under the authentication key K2, this value is appended to the encrypted message as a message authentication code (MAC). The receiver decrypts as with IAPM, XORs the plaintexts with the corresponding ciphertexts and combines these values to form a checksum. The receiver then encrypts the checksum under the authentication key K2 and verifies that the resulting value agrees with the MAC. The HR mode allows blocks to be sent un-encrypted if desired.
    • 提出了用于安全,认证的通信和数据存储的方法和装置。 这些方法可以基于其他方法,例如IAPM,其中加密和认证密钥的强度相同。 在HR-IAPM模式中,发送者使用两个加密密钥K 0和K 1加密数据,如IAPM模式。 然后,发送方将明文与相应的密文进行异或,并将结果合并形成校验和该校验和在认证密钥K <2> 下被加密,该值作为消息认证码附加到加密消息 苹果电脑)。 接收机与IAPM一样解密,使用相应的密文对明文进行异或,并将这些值组合起来形成校验和。 然后,接收器在验证密钥K 2 2下加密校验和,并验证所得到的值是否与MAC一致。 如果需要,HR模式允许块被未加密地发送。