A system comprising: one or more slice-aggregated cryptographic slices each configured to perform a plurality of operations on an incoming data transfer at a first processing rate by aggregating one or more individual cryptographic slices (102_1,..., 102_4), wherein each cryptographic slice of the one or more individual cryptographic slices (102_1,..., 102_4) is configured to perform the plurality of operations on a portion of the incoming data transfer at a second processing rate, wherein each of the one or more individual cryptographic slices (102_1,..., 102_4) comprises at least the following components in a serial connection: an ingress block configured to take the portion of the incoming data transfer at the second processing rate, inform a cryptographic engine of the operations needed, and feed the portion of the incoming data transfer to the cryptographic engine; said cryptographic engine configured to perform the operations on the portion of the incoming data transfer; and an egress block configured to insert or remove a signature of the portion of the incoming data transfer and output the portion of the incoming data transfer once the operations have completed; wherein the first processing rate of each of the one or more slice-aggregated cryptographic slices equals aggregated second processing rates of the one or more individual cryptographic slices (102_1,..., 102_4) in the slice-aggregated cryptographic slice, wherein each slice of the one or more slice-aggregated cryptographic slices is configured to split and feed portions of the incoming data transfer into the ingress blocks of the one or more individual cryptographic slices (102_1,..., 102_4) in the slice-aggregated cryptographic slice. one or more slice-aggregated cryptographic slices each configured to perform a plurality of operations on an incoming data transfer at a first processing rate by aggregating one or more individual cryptographic slices (102_1,..., 102_4), wherein each cryptographic slice of the one or more individual cryptographic slices (102_1,..., 102_4) is configured to perform the plurality of operations on a portion of the incoming data transfer at a second processing rate, wherein each of the one or more individual cryptographic slices (102_1,..., 102_4) comprises at least the following components in a serial connection: an ingress block configured to take the portion of the incoming data transfer at the second processing rate, inform a cryptographic engine of the operations needed, and feed the portion of the incoming data transfer to the cryptographic engine; said cryptographic engine configured to perform the operations on the portion of the incoming data transfer; and an egress block configured to insert or remove a signature of the portion of the incoming data transfer and output the portion of the incoming data transfer once the operations have completed; an ingress block configured to take the portion of the incoming data transfer at the second processing rate, inform a cryptographic engine of the operations needed, and feed the portion of the incoming data transfer to the cryptographic engine; said cryptographic engine configured to perform the operations on the portion of the incoming data transfer; and an egress block configured to insert or remove a signature of the portion of the incoming data transfer and output the portion of the incoming data transfer once the operations have completed; wherein the first processing rate of each of the one or more slice-aggregated cryptographic slices equals aggregated second processing rates of the one or more individual cryptographic slices (102_1,..., 102_4) in the slice-aggregated cryptographic slice, wherein each slice of the one or more slice-aggregated cryptographic slices is configured to split and feed portions of the incoming data transfer into the ingress blocks of the one or more individual cryptographic slices (102_1,..., 102_4) in the slice-aggregated cryptographic slice.