Generate at-index (rotation) keys for a secret key

Standalone wrapper around the CryptoContext::EvalAtIndexKeyGen(privateKey, indexList) C++ method. Functionally identical to eval_rotate_key_gen() (the C++ EvalRotateKeyGen is a thin inline wrapper around EvalAtIndexKeyGen) and provided for surface parity with the C++ header and openfhe-python, both of which bind the two names separately.

Usage

eval_at_index_key_gen(cc, sk, index_list)

Arguments

cc

A CryptoContext.

sk

A PrivateKey whose tag will be used to key the generated rotation keys in the cc's internal registry.

index_list

Integer vector of rotation indices.

Value

NULL, invisibly.