July 2002
Intermediate to advanced
560 pages
11h 10m
English
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18.7. Key Transport Algorithms
Key transport algorithms are public key encryption algorithms specified for encrypting and decrypting keys. As implicit input, they take their keying material and the key to encrypt (transport). Their identifiers normally appear as Algorithm attributes to EncryptionMethod elements that are children of EncryptedKey, which is in turn a child of KeyInfo (see Figure 18-1). The type of key being transported—that is, the algorithm in which the transported key will be used—is given by the Algorithm attribute of the EncryptionMethod child of the EncryptedData or Encrypted/Key parent of this KeyInfo (see Figure 18-2).
Key transport algorithms may optionally be used to encrypt data. In that case, they appear directly as the ...
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