drbg

Documentation

Index

• Constants
• Variables
• func NewCTR(cip BlockCipher, keyLen int, entropy, nonce, personalstr []byte) (*ctrDRBG, error)
• func NewGMHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte) (*hashDRBG, error)
• func NewHMAC(h func() hash.Hash, entropy, nonce, personalstr []byte) (*hmacDRBG, error)
• func NewHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte, isGm bool) (*hashDRBG, error)
• func NewNISTHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte) (*hashDRBG, error)
• type BlockCipher

Constants

const (
	/* seedlen for hash_drgb, table 2 of nist sp 800-90a rev.1 */
	DIGEST_MAX_SIZE = 64

	HASH_DRBG_SEED_SIZE     = 55
	HASH_DRBG_MAX_SEED_SIZE = 111

	HASH_DRBG_RESEED_INTERVAL = (uint64(1) << 48)
)

const MAX_BYTES = 1 << 27

const MAX_BYTES_PER_GENERATE = 1 << 11

Variables

var ErrReseedRequired = errors.New("the DRGB must be reseeded")

Functions

func NewCTR

func NewCTR(cip BlockCipher, keyLen int, entropy, nonce, personalstr []byte) (*ctrDRBG, error)

func NewGMHash

func NewGMHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte) (*hashDRBG, error)

func NewHMAC

func NewHMAC(h func() hash.Hash, entropy, nonce, personalstr []byte) (*hmacDRBG, error)

func NewHash

func NewHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte, isGm bool) (*hashDRBG, error)

func NewNISTHash

func NewNISTHash(digest hash.Hash, entropy []byte, nonce []byte, personalstr []byte) (*hashDRBG, error)

Types

type BlockCipher

type BlockCipher = func(key []byte) (cipher.Block, error)