信息安全 密码理论与技术 释文 block cipher 分组密码
- trivial knot
- trivial line bundle
- trivial link
- trivial loop
- trivial mapping
- trivial metric
- trivial module
- trivial nest
- trivial norm
- trivial operation
- trivial operator
- trivial ordered
- trivial ordered set
- trivial product
- trivial relation
- trivial representation
- trivial restriction
- trivial ring
- trivial section
- trivial set
- trivial shape
- trivial sheaf
- trivial solution
- trivial space
- trivial subcategory