RFC 1848 (rfc1848) - Page 2 of 48
MIME Object Security Services
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RFC 1848 MIME Object Security Services October 1995 2.2.1 Encryption Control Information ........................ 12 2.2.1.1 DEK-Info: ........................................... 13 2.2.1.2 Recipient-ID: ....................................... 14 2.2.1.3 Key-Info: ........................................... 14 2.2.2 application/moss-keys Content Type Definition ......... 15 2.2.3 Use of multipart/encrypted Content Type ............... 16 3. Removing MIME Object Security Services ................... 17 3.1 Digital Signature Service ............................... 18 3.1.1 Preparation ........................................... 18 3.1.2 Verification .......................................... 19 3.1.3 Results ............................................... 19 3.2 Encryption Service ...................................... 20 3.2.1 Preparation ........................................... 20 3.2.2 Decryption ............................................ 20 3.2.3 Results ............................................... 21 4. Identifying Originators, Recipients, and Their Keys ...... 21 4.1 Name Forms .............................................. 23 4.1.1 Email Addresses ....................................... 23 4.1.2 Arbitrary Strings ..................................... 23 4.1.3 Distinguished Names ................................... 23 4.2 Identifiers ............................................. 24 4.2.1 Email Address ......................................... 25 4.2.2 Arbitrary String ...................................... 25 4.2.3 Distinguished Name .................................... 26 4.2.4 Public Key ............................................ 26 4.2.5 Issuer Name and Serial Number ......................... 27 5. Key Management Content Types ............................. 27 5.1 application/mosskey-request Content Type Definition ..... 28 5.2 application/mosskey-data Content Type Definition ........ 29 6. Examples ................................................. 31 6.1 Original Message Prepared for Protection ................ 31 6.2 Sign Text of Original Message ........................... 32 6.3 Sign Headers and Text of Original Message ............... 32 6.4 Encrypt Text of a Message ............................... 33 6.5 Encrypt the Signed Text of a Message .................... 35 6.6 Protecting Audio Content ................................ 37 6.6.1 Sign Audio Content .................................... 37 6.6.2 Encrypt Audio Content ................................. 37 7. Observations ............................................. 38 8. Comparison of MOSS and PEM Protocols ..................... 39 9. Security Considerations .................................. 41 10. Acknowledgements ........................................ 41 11. References .............................................. 41 12. Authors' Addresses ...................................... 43 Appendix A: Collected Grammar .............................. 44 Appendix B: Imported Grammar ............................... 47 Crocker, et al Standards Track
