func ReadAToken(debug utils.Debug, iv []byte, key []byte, ibuff utils.IEncoding) (tok AToken, err error) {
err = nil
debug.Printf("Reading A's token")
ciphertext, err := ibuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(ciphertext, "Token Ciphertext = ")
t, err := utils.Decrypt(AMP, iv, key[0:], ciphertext)
if err != nil {
return
}
debug.PrintBuffer(t, "Token Plaintext = ")
sbuff := utils.MakeByteIEncoding(t)
debug.Printf("Reading nonce N")
nonce, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(nonce, "Nonce N = ")
tok.Nonce = nonce[0:]
debug.Printf("Reading B")
b, err := sbuff.ReadString()
if err != nil {
return
}
debug.Printf("B = %v", b)
tok.B = b
debug.Printf("Reading session key")
skey, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(skey, "Session Key = ")
tok.Key = skey[0:]
debug.Printf("Reading ciphertext of B's token")
ct, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(ct, "Ciphertext of B's token = ")
tok.CipherText = ct[0:]
return
}
func ReadUserToken(debug utils.Debug, user string, iv []byte, key []byte, ibuff utils.IEncoding) (tok UserToken, err error) {
err = nil
debug.Printf("Reading %s's token", user)
ciphertext, err := ibuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(ciphertext, "Token Ciphertext = ")
t, err := utils.Decrypt(AMP, iv, key[0:], ciphertext)
if err != nil {
return
}
debug.PrintBuffer(t, "Token Plaintext = ")
sbuff := utils.MakeByteIEncoding(t)
debug.Printf("Reading nonce N%s", user)
usernonce, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(usernonce, "Nonce = ")
tok.UserNonce = usernonce[0:]
debug.Printf("Reading nonce N")
nonce, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(nonce, "Nonce N = ")
tok.Nonce = nonce[0:]
debug.Printf("Reading A")
a, err := sbuff.ReadString()
if err != nil {
return
}
debug.Printf("A = %v", a)
tok.A = a
debug.Printf("Reading B")
b, err := sbuff.ReadString()
if err != nil {
return
}
debug.Printf("B = %v", b)
tok.B = b
return
}
func ReadBToken(debug utils.Debug, iv []byte, key []byte, ibuff utils.IEncoding) (tok BToken, err error) {
err = nil
debug.Printf("Reading B's token")
ciphertext, err := ibuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(ciphertext, "Token Ciphertext = ")
t, err := utils.Decrypt(AMP, iv, key[0:], ciphertext)
if err != nil {
return
}
debug.PrintBuffer(t, "Token Plaintext = ")
sbuff := utils.MakeByteIEncoding(t)
debug.Printf("Reading session key")
skey, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(skey, "Session Key = ")
tok.Key = skey[0:]
debug.Printf("Reading A")
a, err := sbuff.ReadString()
if err != nil {
return
}
debug.Printf("A = %v", a)
tok.A = a
return
}
func ReadKeyToken(debug utils.Debug, user string, iv []byte, key []byte, ibuff utils.IEncoding) (tok KeyToken, err error) {
err = nil
debug.Printf("Reading %s's key token", user)
ciphertext, err := ibuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(ciphertext, "Key Token Ciphertext = ")
t, err := utils.Decrypt(AMP, iv, key[0:], ciphertext)
if err != nil {
return
}
debug.PrintBuffer(t, "Key Token Plaintext = ")
sbuff := utils.MakeByteIEncoding(t)
debug.Printf("Reading nonce N%s", user)
usernonce, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(usernonce, "Nonce = ")
tok.UserNonce = usernonce[0:]
debug.Printf("Reading session key")
skey, err := sbuff.ReadBinary()
if err != nil {
return
}
debug.PrintBuffer(skey, "Session Key = ")
tok.Key = skey[0:]
return
}