bytes | Package bytes implements functions for the manipulation of byte slices. |
crypto | Package crypto collects common cryptographic constants. |
crypto/rand | Package rand implements a cryptographically secure random number generator. |
crypto/subtle | Package subtle implements functions that are often useful in cryptographic code but require careful thought to use correctly. |
errors | Package errors implements functions to manipulate errors. |
hash | Package hash provides interfaces for hash functions. |
io | Package io provides basic interfaces to I/O primitives. |
math | Package math provides basic constants and mathematical functions. |
math/big | Package big implements arbitrary-precision arithmetic (big numbers). |