package common

import "github.com/jcmturner/gokrb5/v8/crypto/common"

Package common provides encryption methods common across encryption types

Index ¶

• func GetChecksumHash(b, key []byte, usage uint32, etype etype.EType) ([]byte, error)
• func GetHash(pt, key []byte, usage []byte, etype etype.EType) ([]byte, error)
• func GetIntegrityHash(b, key []byte, usage uint32, etype etype.EType) ([]byte, error)
• func GetUsageKc(un uint32) []byte
• func GetUsageKe(un uint32) []byte
• func GetUsageKi(un uint32) []byte
• func IterationsToS2Kparams(i uint32) string
• func PKCS7Pad(b []byte, m int) ([]byte, error)
• func PKCS7Unpad(b []byte, m int) ([]byte, error)
• func VerifyChecksum(key, chksum, msg []byte, usage uint32, etype etype.EType) bool
• func ZeroPad(b []byte, m int) ([]byte, error)

Functions ¶

func GetChecksumHash ¶

func GetChecksumHash(b, key []byte, usage uint32, etype etype.EType) ([]byte, error)

GetChecksumHash returns a keyed checksum hash of the bytes provided.

func GetHash ¶

func GetHash(pt, key []byte, usage []byte, etype etype.EType) ([]byte, error)

GetHash generates the keyed hash value according to the etype's hash function.

func GetIntegrityHash ¶

func GetIntegrityHash(b, key []byte, usage uint32, etype etype.EType) ([]byte, error)

GetIntegrityHash returns a keyed integrity hash of the bytes provided.

func GetUsageKc ¶

func GetUsageKc(un uint32) []byte

GetUsageKc returns the checksum key usage value for the usage number un.

See RFC 3961 5.3 key-derivation function definition.

func GetUsageKe ¶

func GetUsageKe(un uint32) []byte

GetUsageKe returns the encryption key usage value for the usage number un

See RFC 3961 5.3 key-derivation function definition.

func GetUsageKi ¶

func GetUsageKi(un uint32) []byte

GetUsageKi returns the integrity key usage value for the usage number un

See RFC 3961 5.3 key-derivation function definition.

func IterationsToS2Kparams ¶

func IterationsToS2Kparams(i uint32) string

IterationsToS2Kparams converts the number of iterations as an integer to a string representation.

func PKCS7Pad ¶

func PKCS7Pad(b []byte, m int) ([]byte, error)

PKCS7Pad pads bytes according to RFC 2315 to nearest multiple of message size m.

func PKCS7Unpad ¶

func PKCS7Unpad(b []byte, m int) ([]byte, error)

PKCS7Unpad removes RFC 2315 padding from byes where message size is m.

func VerifyChecksum ¶

func VerifyChecksum(key, chksum, msg []byte, usage uint32, etype etype.EType) bool

VerifyChecksum compares the checksum of the msg bytes is the same as the checksum provided.

func ZeroPad ¶

func ZeroPad(b []byte, m int) ([]byte, error)

ZeroPad pads bytes with zeros to nearest multiple of message size m.

Source Files ¶

common.go