Framework EDI Reference. Constants
Encryption Format Type Constants

Encryption Format Type Constants specify the resulting format of the encrypted document. 

• EncryptFormat_EncryptedKey (1) – The format of the encrypted file is generated as follows:
  1. A session key is generated and used to encrypt the file using a symmetric encryption algorithm.
  2. The symmetric key is then encrypted using a public key.
  3. The encrypted key is then prepended at the beginning of the encrypted file.
• EncryptFormat_EnvelopedData (2) – Enveloped-data content type.  The file is encrypted and encoded to the EnvelopedData type format.

For additional information on the enveloped-data content type, please refer to RFC 2315 - PKCS #7: Cryptographic Message Syntax Version 1.5.