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CkPython

Set the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetProtectedHeader, which sets the integrity-protected JWE header from a JsonObject. The header specifies the key-management algorithm (alg) and content-encryption algorithm (enc).

Background. The protected header is integrity-protected and applies to all recipients. It is configured before encrypting.

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CkPython
import sys
import chilkat

success = False

jwe = chilkat.CkJwe()

#  Build the JWE protected header.  The "alg" member names the key-management algorithm and the "enc"
#  member names the content-encryption algorithm.
header = chilkat.CkJsonObject()
header.UpdateString("alg","A256KW")
header.UpdateString("enc","A256GCM")

#  Set the protected header on the JWE.  The protected header is integrity-protected and applies to
#  all recipients.
success = jwe.SetProtectedHeader(header)
if (success == False):
    print(jwe.lastErrorText())
    sys.exit()

print("Protected header set.")