信息安全系统 - 2026 进行中

科目: 信息安全系统
级别: X (I级最简单，XII级最难)
类别: 大学生
试题语言: English
题数: 15
问题示例: A web service encrypts records with AES-GCM but accidentally reuses the same nonce with the same key for two different plaintexts. Which security consequence is most serious? The encryption key is automatically rotated, Only the ciphertext length becomes hidden, Confidentiality and authentication guarantees can be compromised, The algorithm changes from symmetric to asymmetric encryption