Imports of package identity

PathSynopsis
crypto/sha256Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
crypto/sha512Package sha512 implements the SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4.
github.com/opencontainers/go-digestPackage digest provides a generalized type to opaquely represent message digests and their operations within the registry.
ioPackage io provides basic interfaces to I/O primitives.