LSASS needs an IV

Simple AES-CFB encryption/decryption script
Correct decryption of secret
Decryption fails with different IVs for encryption/decryption
Decryption with a different IV results unusable data
Encrypt/decrypt a larger dataset with different IVs
Decryption shows parts of the original plaintext, despite different IV used
Decryption half-failed
MSV1_0_PRIMARY_CREDENTIAL struct expleened.

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