Because a digital signature is based on public key cryptography, it generally takes much more time to compute a digital signature than a MAC.

由于数字签名是建立在公用密钥密码术基础上的，因此计算一个数字签名所花的时间往往要比计算一个mac长得多。

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The signature consists of information on how the information was processed so someone trying to verify the signature can duplicate the steps exactly in order to get the same result.

签名中包含了信息的处理方式，因此如果有人想要验证签名的话，则重复进行相同的步骤即可获得相同的结果。

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Your counter signature is not in agreement with the signature on the upper left corner.

您的复签和左上角的签字不一致.

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In his speech on Thursday, President Obama challenged those lawmakers who are campaigning to undo his signature domestic issue.

VOA: standard.2010.03.25

While it marks a return to his blues roots, it also contains the band's signature rock and roll sound on tracks like "Rock Me Baby."

VOA: standard.2010.06.27

Clinton said the two countries, which had frosty relations during the Cold War era and beyond, still differ on some key issues but that their new partnership has the potential to be a "signature accomplishment" of the two governments.

VOA: standard.2009.07.20

Our understanding is that the Russian authorities would have liked to get their hands on Dudley and get his signature on some documents.

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's conviction on charges of forging Astor's signature on a change to her will.

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Theaters by prize winners include Jean Nouvel's Guthrie Theater complex in Minneapolis (his first completed project in North America) and Frank Gehry and Hugh Hardy's Pershing Square Signature Center, the new home of the Signature Theatre Company on West 42nd Street in Manhattan.

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