Decrypt a JWE into a StringBuilder

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.DecryptSb, which decrypts a recipient of a loaded JWE and writes the plaintext into a StringBuilder.

import sys
import chilkat2

success = False

jwe = chilkat2.Jwe()

# Load the JWE compact serialization to be decrypted.
jweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>"
success = jwe.LoadJwe(jweCompact)
if (success == False):
    print(jwe.LastErrorText)
    sys.exit()

# The 256-bit key-wrapping key (base64) for recipient index 0.  In production, obtain the key
# from a secure source rather than hard-coding it.
base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU="
success = jwe.SetWrappingKey(0,base64Key,"base64")
if (success == False):
    print(jwe.LastErrorText)
    sys.exit()

# Decrypt recipient index 0, writing the plaintext into a StringBuilder.
sbContent = chilkat2.StringBuilder()
success = jwe.DecryptSb(0,"utf-8",sbContent)
if (success == False):
    print(jwe.LastErrorText)
    sys.exit()

print(sbContent.GetAsString())