Imports of package s2k

PathSynopsis
cryptoPackage crypto collects common cryptographic constants.
golang.org/x/crypto/openpgp/errorsPackage errors contains common error types for the OpenPGP packages.
hashPackage hash provides interfaces for hash functions.
ioPackage io provides basic interfaces to I/O primitives.
strconvPackage strconv implements conversions to and from string representations of basic data types.