Privacy and security education
Privacy and security education：7 款免费工具。比较任务、阅读说明并选择工具。无需账户。
Inspect supported security-related data and learn how common formats and checks work. Read each tool's explanation of its scope. A format check or educational calculation does not establish the security of an account, file or system.
选择工具 7
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File encryption and decryption
Encrypt local files with a reviewed authenticated format and restore them.
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Password strength estimator
Estimate resistance locally and explain model limitations.
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Sensitive data masking tool
Preview and redact configured text patterns; detection is not exhaustive.
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Content Security Policy analyzer
Explain pasted directives and identify common configuration issues.
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Certificate signing request decoder
Inspect a pasted CSR and display subject and public key fields.
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Caesar and Vigenere cipher explorer
Demonstrate classical ciphers for learning and puzzles.
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Subresource integrity generator
Generate SRI values for uploaded assets.
Privacy and security education