Glossary of Security Terms: Same-Origin Policy

September 10th 2020

@mozillaMozilla Contributors

Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape.

The same-origin policy is a critical security mechanism that restricts how a document or script loaded from one origin can interact with a resource from another origin. It helps isolate potentially malicious documents, reducing possible attack vectors.

 View Previous Terms:

• Block cipher mode of operation
• Certificate authority
• Challenge-response authentication
• Cipher
• Cipher suite
• Ciphertext
• CORS
• CORS-safelisted request header
• CORS-safelisted response header
• Cross-site scripting
• Cryptanalysis
• Cryptographic hash function
• Cryptography
• CSP
• CSRF
• Decryption
• Digital certificate
• DTLS (Datagram Transport Layer Security)
• Encryption
• Forbidden header name
• Forbidden response header name
• Hash
• HMAC
• HPKP
• HSTS
• HTTPS
• Key
• MitM
• OWASP
• Preflight request
• Public-key cryptography
• Reporting directive
• Robots.txt
• Session Hijacking
• SQL Injection
• Symmetric-key cryptography
• TOFU
• Transport Layer Security (TLS)

Credits

• Source: https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy
• Published under Open CC Attribution ShareAlike 3.0 license

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