1. A computer-implemented method, comprising: encrypting counting values as a set of counting value cyphertexts according to a hidden vector encryption scheme using sample values of a set of samples, each of the samples comprising a plurality of sample values; generating one or more tokens that are configured according to the hidden vector encryption scheme such that each token of the one or more tokens enables decryption of matching cyphertexts that match a set of one or more match values used to generate the token; delegating processing of the counting value cyphertexts and the tokens to a remote computing environment; and receiving count representations from the remote computing environment, each of the count representations representing a count of a set of one or more of the counting value cyphertexts whose decryption was enabled by a set of one or more of the tokens.