发明授权
US08520845B2 Method and apparatus for expansion key generation for block ciphers
有权
用于块密码的扩展密钥生成的方法和装置
- 专利标题: Method and apparatus for expansion key generation for block ciphers
- 专利标题(中): 用于块密码的扩展密钥生成的方法和装置
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申请号: US11760733申请日: 2007-06-08
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公开(公告)号: US08520845B2公开(公告)日: 2013-08-27
- 发明人: Erdinc Ozturk , Kirk S. Yap , Gilbert Wolrich , Wajdi K. Feghali , Vinodh Gopal
- 申请人: Erdinc Ozturk , Kirk S. Yap , Gilbert Wolrich , Wajdi K. Feghali , Vinodh Gopal
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: H04L9/00
- IPC分类号: H04L9/00
摘要:
A key scheduler performs a key-expansion to generate round keys for AES encryption and decryption just-in-time for each AES round. The key scheduler pre-computes slow operations in a current clock cycle to reduce the critical delay path for computing the round key for a next AES round.