Imports of package crypto

PathSynopsis
crypto/aesPackage aes implements AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197.
crypto/cipherPackage cipher implements standard block cipher modes that can be wrapped around low-level block cipher implementations.
crypto/randPackage rand implements a cryptographically secure random number generator.
github.com/pkg/errorsPackage errors provides simple error handling primitives.