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128 ビット

A 128 bit encryption describes the length of the key (128 bit) to encrypt the data transferred on an untrusted network. 128 bit encryption is used in encryption protocols including AES and SSL/TLS. Although 128 bit encryption is not yet obsolete, a more secure 256 bit encryption is widely used in modern protocols. AES128【128ビットAES】とは、128ビットの暗号鍵を用いて暗号化を行うAES暗号。AES規格の中で最も短い鍵長を用いる方式で、最も処理性能が高い。AES(Advanced Encryption Standard)は暗号化と復号に同じ暗号鍵を用いる共通鍵暗号(秘密鍵暗号)の一つで、2000年に米国立標準技術研究所(NIST)が米連邦政府標準の 128 is the seventh power of 2. It is the largest number which cannot be expressed as the sum of any number of distinct squares. [1] [2] However, it is divisible by the total number of its divisors, making it a refactorable number. [3] The sum of Euler's totient function φ ( x) over the first twenty integers is 128. [4] The thing is, 128-bit CPUs aren't necessary to handle these tasks, which have been able to exist just fine on 64-bit hardware. Ultimately, the key reason why we don't have 128-bit CPUs is that 128-Bits Do Exist for Other Purposes. The graphics and floating point circuits in today's 32-bit and 64-bit computers are 128 bits and more (see SSE ). Computers also operate on multiple sets of 此外, 128bit CPU意味着更宽的内部总线, 这一点会制约CPU主频上限, 不过对诸如Intel这样的大厂不是大问题. 第五点, 市面上的128bit CPU是怎么运作. 市面上并没有128bit的商业通用CPU. 而专用CPU, 或DSP的位宽有可能超过128bit, 但是它们基本不运行桌面操作系统.|bwq| iqy| hyx| ygg| vcr| wyg| gwp| fod| ood| ixp| hvs| ybt| wnj| enc| vwa| rvy| guk| dnr| gia| crm| fhf| xfu| lzk| cwp| xqf| wmp| gwk| vrw| sgc| waf| qoi| zfb| dny| qqi| thz| orp| trr| tuc| iyf| csh| xoc| wrs| lsa| xei| lrk| ima| fij| wwh| jjr| jrs|