krb5_cbc_cts_decrypt
EXPORT_SYMBOL_IF_KUNIT(krb5_cbc_cts_decrypt);
ret = krb5_cbc_cts_decrypt(cipher, aux_cipher, 0, &subbuf);
ret = krb5_cbc_cts_decrypt(cipher, aux_cipher, 0, &subbuf);
int krb5_cbc_cts_decrypt(struct crypto_sync_skcipher *cts_tfm,
err = krb5_cbc_cts_decrypt(cts_tfm, cbc_tfm, 0, &buf);