| encoding/binary | Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints. |
| golang.org/x/crypto/blake2b | Package blake2b implements the BLAKE2b hash algorithm defined by RFC 7693 and the extendable output function (XOF) BLAKE2Xb. |
| golang.org/x/sys/cpu | Package cpu implements processor feature detection for various CPU architectures. |
| hash | Package hash provides interfaces for hash functions. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |