JSON Web Encryption (RFC 7516)

1. JWE terminology

   Encrypted content, content encryption key and recipients.

2. JWE structure

   Header, encrypted key, IV, ciphertext and authentication tag.

3. JOSE header for JWE

   alg, enc, zip and other header parameters.

4. Message encryption

   Steps to generate CEK, encrypt key and content.

5. Message decryption

   Steps to recover content and validate integrity.

6. JWE Compact Serialization

   Five base64url segments.

7. JWE JSON Serialization

   Multiple recipients and shared protected headers.

8. Key management algorithms

   RSA-OAEP, ECDH-ES, AES key wrap and direct keys.

9. Content encryption algorithms

   AES-GCM and AES-CBC-HMAC content encryption.

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