daead

Overview ¶

Package daead provides implementations of the DeterministicAEAD primitive. Unlike AEAD, implementations of this interface are not semantically secure, because encrypting the same plaintex always yields the same ciphertext. Example:

package main

import (

"fmt"

"github.com/google/tink/go/daead"
"github.com/google/tink/go/keyset"

)

func main() {

kh, err := keyset.NewHandle(daead.AESSIVKeyTemplate())
if err != nil {
    // handle the error
}

d := daead.New(kh)

ct1 , err := d.EncryptDeterministically([]byte("this data needs to be encrypted"), []byte("additional data"))
if err != nil {
    // handle error
}

pt , err := d.DecryptDeterministically(ct, []byte("additional data"))
if err != nil {
    // handle error
}

ct2 , err := d.EncryptDeterministically([]byte("this data needs to be encrypted"), []byte("additional data"))
if err != nil {
    // handle error
}

// ct1 will be equal to ct2

}