
11202.FriCh05
Authored by Ys Huang
Computers
12th Grade
Used 4+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
加密貨幣或稱密碼貨幣,以下何者錯誤?
核心技術「區塊鏈」,便構築於密碼學(Cryptography)
比特幣屬於其中一種貨幣
不涉及數位簽章(Digital Signature)
涉及雜湊函數 (Hash Function)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
紐約時間2008年中本聰在密碼學群組上發表Bitcion:A Peer-to-Peer Electronic Cash System的文章,有關後續發展何者錯誤?
區塊鏈比喻為一輛車,那麼比特幣就是大道
2009年,中本聰建立了序號為0的第一個比特幣區塊(俗稱創世區塊(Genesis Block))
2009年,當出現序號為1 的區塊,並與序號為0的創世區塊相連接,區塊鏈就此誕生
區塊鏈是承載比特幣交易的技術
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
公鑰密碼術(Public-Key Cryptography),以下何者錯誤?
(A) 稱為「非對稱密碼術」
利用單向函數產生一對密鑰
(C) 兩把鑰匙「公鑰 (Public Key)」與「私鑰 (Private Key)」
解秘方獲取加密方的公鑰,利用公鑰為資訊加密
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
數位簽章,何者為非?
簽署人以其私鑰將訊息明文加密成「簽署文」
將明文發送給對方,對方依據簽署人之公鑰解密簽署文
將簽署文發送給自己,自己依據簽署人之公鑰解密簽署文
若解密的結果與明文一致,則可相信這則訊息是由簽署人所發
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關RSA演算法,以下何者為非?
比特幣區塊鏈使用隨機四邊形密碼術
最早的RSA 演算法採用因數分解
橢圓曲線密碼術 (Elliptic Curve Cryptography, ECC) 安全性較高
NIST對於最小密鑰長度的要求中,RSA 是2048位、ECC 只需224 位
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
雜湊函數相關描述,何者為非?
一種壓縮資料的演算法
可使任何內容壓縮成一個固定長度的偽亂數
具有解密鑰匙
(D) 比特幣區塊鏈所使用的雜湊演算法稱為SHA-256
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
SHA-256敘述,何者錯誤?
區塊與區塊連結的依據為抗原像攻擊性
抗原像攻擊性 (Preimage Resistance)
256是指其雜湊值以二進位表示時長度有128 位
SHA 是「安全雜湊演算法 (Security Hash Algorithm)」
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