July 2002
Intermediate to advanced
560 pages
11h 10m
English
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Chapter 13. The KeyInfo Element
Both XMLDSIG and XML Encryption use the KeyInfo element. It appears as the child of a SignedInfo, EncryptedData, or EncryptedKey element and provides information to a recipient about what keying material to use in validating a signature or decrypting encrypted data. (This element is also used in XKMS, as described in Chapter 14.)
In both signature and encryption, the KeyInfo element is optional, because the recipient may be able to determine the right key to use from the application context. For example, in a protocol application, the channel over which the recipient gets the message or some other name, index, or data in the message may signal the recipient about which key or keys to use.
Each KeyInfo element can ...
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